Related
An MTP filesystem for linux that I believe works better than anything else currently out there.
http://research.jacquette.com/jmtpfs-exchanging-files-between-android-devices-and-linux/
I tried to make the filesystem implementation robust and as complete as possible within the limits of MTP. Everything except chown, chmod, symlinks, and updating the modification time without actually changing the file should work.
I've only tested it under Fedora 16, but the code is generic enough that it should work on any linux system (and probably Mac OS X as well) with libmtp 1.1.3, fuse, and libmagic.
Give it a try, and let me know if you find any bugs or other issues.
- J
Hi. This looks great. I tried mtpfs a couple of weeks ago and found it unreliable and buggy.
I'm trying to use this on mac. I installed gcc 4.7 since xcode command line tools ship with gcc 4.2 which doesn't support C++11.
However I still get this when I run make:
Code:
Making all in src
g++ -DPACKAGE_NAME=\"jmtpfs\" -DPACKAGE_TARNAME=\"jmtpfs\" -DPACKAGE_VERSION=\"1.0\" -DPACKAGE_STRING=\"jmtpfs\ 1.0\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -DPACKAGE=\"jmtpfs\" -DVERSION=\"1.0\" -DHAVE_LIBMAGIC=1 -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_MAGIC_H=1 -I. -framework IOKit -I/usr/local/Cellar/libmtp/1.1.2/include -I/usr/local/Cellar/libusb-compat/0.1.3/include -D__DARWIN_64_BIT_INO_T=1 -D__FreeBSD__=10 -D_FILE_OFFSET_BITS=64 -I/usr/local/include/osxfuse/fuse -g -O2 -std=c++0x -MT jmtpfs-jmtpfs.o -MD -MP -MF .deps/jmtpfs-jmtpfs.Tpo -c -o jmtpfs-jmtpfs.o `test -f 'jmtpfs.cpp' || echo './'`jmtpfs.cpp
cc1plus: error: unrecognized command line option "-std=c++0x"
make[1]: *** [jmtpfs-jmtpfs.o] Error 1
make: *** [all-recursive] Error 1
Any ideas?
---------- Post added at 09:51 PM ---------- Previous post was at 09:34 PM ----------
Ok nevermind that. I had a symlink problem.
I still couldn't compile though:
Code:
jmtpfs.cpp:411:62: error: macro "fuse_main" passed 4 arguments, but takes just 3
jmtpfs.cpp: In function 'int main(int, char**)':
jmtpfs.cpp:411:15: error: 'fuse_main' was not declared in this scope
Hi,
I tested on gentoo x64, it worked very well.
Mounted my galaxy nexus as normal user, showed in nautilus as a drive. Copied some flac files to it, so far so good.
Thanks and please keep this going, since mtpfs didn't work for me either.
OSX build
With the patch below I got jmtpfs to build under Lion using libmtp, fuse4x, gcc46 (or gcc47), and file (libmagic) installed via macports. I'll include the patch in my next release.
There is still one weird issue though. If jmtpfs is run without the foreground (-f) option, you just get i/o errors when trying to access the device. It looks like something in the way fuse4x is backgrounding the process is messing up libmtp. But with -f it seems to work fine.
Index: src/jmtpfs.cpp
===================================================================
--- src/jmtpfs.cpp (revision 5445)
+++ src/jmtpfs.cpp (working copy)
@@ -22,11 +22,10 @@
#include "ConnectedMtpDevices.h"
#include "mtpFilesystemErrors.h"
#include "Mutex.h"
+#include "FuseHeader.h"
#include <MtpRoot.h>
#include <iostream>
-#include <fuse.h>
-#include <fuse_opt.h>
#include <cstddef>
#include <errno.h>
#include <sstream>
Index: src/MtpNode.h
===================================================================
--- src/MtpNode.h (revision 5445)
+++ src/MtpNode.h (working copy)
@@ -25,7 +25,7 @@
#include "MtpMetadataCache.h"
#include "MtpFilesystemPath.h"
#include "MtpDevice.h"
-#include <fuse.h>
+#include "FuseHeader.h"
#include <time.h>
#include <vector>
#include <string>
Index: src/FuseHeader.h
===================================================================
--- src/FuseHeader.h (revision 0)
+++ src/FuseHeader.h (revision 5447)
@@ -0,0 +1,30 @@
+/*
+ * FuseHeader.h
+ *
+ * Author: Jason Ferrara
+ *
+ * This software is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 3 as published by the Free Software Foundation.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02111-1301, USA.
+ * [email protected]
+ */
+
+#ifndef FUSEHEADER_H_
+#define FUSEHEADER_H_
+
+#define FUSE_USE_VERSION 26
+#include <fuse.h>
+#include <fuse_opt.h>
+
+
+#endif /* FUSEHEADER_H_ */
Index: src/MtpLocalFileCopy.cpp
===================================================================
--- src/MtpLocalFileCopy.cpp (revision 5445)
+++ src/MtpLocalFileCopy.cpp (working copy)
@@ -22,6 +22,7 @@
#include "mtpFilesystemErrors.h"
#include <sys/stat.h>
#include <iostream>
+#include <unistd.h>
MtpLocalFileCopy::MtpLocalFileCopy(MtpDevice& device, uint32_t id) :
m_device(device), m_remoteId(id), m_needWriteBack(false)
I released a version that builds and runs correctly under Mac OS X.
If you follow the link in my first post you'll now see a link to download the new version at the top of the blog post.
J F said:
I released a version that builds and runs correctly under Mac OS X.
If you follow the link in my first post you'll now see a link to download the new version at the top of the blog post.
Click to expand...
Click to collapse
Awesome! I didn't expect such a quick response. I got it working with gcc 4.7 and fuse4x installed using homebrew. I still can't copy/move anything due to permission errors. I tried running with sudo but it wouldn't mount at all. I also caught a couple of crashes: http://pastebin.com/JFgc0n5s http://pastebin.com/1d8FgvVX
Great work!
I'll try it on Archlinux 64 as soon as I get home
New release 0.4 with improved Mac OS X compatibility. Follow the link in my first post.
Apparently if you don't lie to the Finder and tell it MTP supports chmod and utime, the Finder throws a fit.
I'm also using the user that started jmtpfs for the uid and gid for the files. This fixes the permissions problems in OS X. And I report the combined free space of all the storage devices as the free space of the mount point. If I report 0 (which is the truth, since the mount point is read only and only contains directory entries for the storage devices, and its each subdirectory of the mount point which is read/write and has its own free space) then the finder assumes there is no free space in any directory under the mount point and refused to copy over files.
J F said:
New release 0.4 with improved Mac OS X compatibility. Follow the link in my first post.
Apparently if you don't lie to the Finder and tell it MTP supports chmod and utime, the Finder throws a fit.
I'm also using the user that started jmtpfs for the uid and gid for the files. This fixes the permissions problems in OS X. And I report the combined free space of all the storage devices as the free space of the mount point. If I report 0 (which is the truth, since the mount point is read only and only contains directory entries for the storage devices, and its each subdirectory of the mount point which is read/write and has its own free space) then the finder assumes there is no free space in any directory under the mount point and refused to copy over files.
Click to expand...
Click to collapse
0.4 compiled with the addition of "#include <unistd.h>" to jmtpfs.cpp and it worked! I was able to send/receive files! Thanks a lot for your efforts. At last we have a viable alternative to Android File Transfer.
Here is a little toturial for less techsavvy Mac owners:
1. Get Xcode from App Store if you haven't already. Open it and go to Preferences>Downloads and install "Command Line Tools".
2. Install homebrew
3. In terminal, run "brew doctor" to check for any issues. Then run "brew update && brew upgrade" to get the latest database.
4. Run this to get gcc 4.7 with C++ support:
Code:
brew install https://raw.github.com/Homebrew/homebrew-dupes/master/gcc.rb
5. Run "brew install fuse4x libmtp libmagic".
6. Run the following to install the fuse kernel extentions:
Code:
sudo cp -rfX /usr/local/Cellar/fuse4x-kext/0.9.0/Library/Extensions/fuse4x.kext /Library/Extensions && sudo chmod +s /Library/Extensions/fuse4x.kext/Support/load_fuse4x
7. Now you should have all the pre requisites installed. Download (fixed) jmtpfs from here and extract it.
8. cd to the extracted directory and run:
Code:
CXX=g++-4.7 CXXFLAGS="-D FUSE_USE_VERSION=25" ./configure --prefix=/usr/local/Cellar/jmptfs/0.4 && make && make install && brew link jmptfs
9. Run "mkdir ~/Android" to create a directory in your homefolder.
10. Finally, run "jmtpfs ~/Android". At this point, you should see a mountpoint called "fuse4x volume 0 jmtpfs" in your home directory, which you can treat as any external harddrive.
This is very interesting, but I can't seem to get it to work on Ubuntu Precise 12.04.
This is what I get on the "make" command:
[email protected]:~/Downloads/jmtpfs$ make
Making all in src
make[1]: Entering directory `/home/betto/Downloads/jmtpfs/src'
g++ -g -O2 -std=c++0x -lmagic -o jmtpfs jmtpfs-jmtpfs.o jmtpfs-MtpDevice.o jmtpfs-ConnectedMtpDevices.o jmtpfs-Mutex.o jmtpfs-MtpFilesystemPath.o jmtpfs-MtpMetadataCache.o jmtpfs-MtpNode.o jmtpfs-MtpRoot.o jmtpfs-MtpLibLock.o jmtpfs-MtpStorage.o jmtpfs-MtpFolder.o jmtpfs-MtpFile.o jmtpfs-TemporaryFile.o jmtpfs-MtpLocalFileCopy.o -L/usr/local/lib -lmtp -lusb -pthread -lfuse -lrt -ldl
jmtpfs-MtpDevice.o: In function `MtpDevice':
/home/betto/Downloads/jmtpfs/src/MtpDevice.cpp:69: undefined reference to `magic_open'
/home/betto/Downloads/jmtpfs/src/MtpDevice.cpp:72: undefined reference to `magic_load'
/home/betto/Downloads/jmtpfs/src/MtpDevice.cpp:73: undefined reference to `magic_error'
jmtpfs-MtpDevice.o: In function `MtpDevice::SendFile(LIBMTP_file_struct*, int)':
/home/betto/Downloads/jmtpfs/src/MtpDevice.cpp:242: undefined reference to `magic_buffer'
collect2: ld returned 1 exit status
make[1]: *** [jmtpfs] Error 1
make[1]: Leaving directory `/home/betto/Downloads/jmtpfs/src'
make: *** [all-recursive] Error 1
Click to expand...
Click to collapse
I've installed the libmagic-dev package(or something like that. What are those undefined references? Am I missing some packages??
Hey, i have now w7, pls support for me.
Sent from my Galaxy Nexus using Tapatalk 2
Rimher said:
This is very interesting, but I can't seem to get it to work on Ubuntu Precise 12.04.
This is what I get on the "make" command:
I've installed the libmagic-dev package(or something like that. What are those undefined references? Am I missing some packages??
Click to expand...
Click to collapse
It looks like maybe you ran configure, installed libmagic-dev, and then ran make without rerunning configure.
Do "make distclean;./configure" and make sure configure doesn't report any errors. Then try make again.
If things go right at the final link command there should be a -lmagic at the end of the command line. The -lmagic you see near the beginning of the command line is because of a mistake I made in configure.ac (the LDFLAGS="$LDFLAGS -lmagic" line shouldn't be there), but it has no effect because it comes before the object files that need it.
J F said:
It looks like maybe you ran configure, installed libmagic-dev, and then ran make without rerunning configure.
Do "make distclean;./configure" and make sure configure doesn't report any errors. Then try make again.
If things go right at the final link command there should be a -lmagic at the end of the command line. The -lmagic you see near the beginning of the command line is because of a mistake I made in configure.ac (the LDFLAGS="$LDFLAGS -lmagic" line shouldn't be there), but it has no effect because it comes before the object files that need it.
Click to expand...
Click to collapse
Seems to work correctly now! Thanks a lot =)
The weird thing is that some folders that are available into my Android are not visible through the file system. How's that possible?
Ubuntu 12
Hey OP,
When I run the ./configure command I get this output
:/home/jd/Downloads/jmtpfs-0.3# ./configure
checking build system type... x86_64-unknown-linux-gnu
checking host system type... x86_64-unknown-linux-gnu
checking target system type... x86_64-unknown-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for g++... no
checking for c++... no
checking for gpp... no
checking for aCC... no
checking for CC... no
checking for cxx... no
checking for cc++... no
checking for cl.exe... no
checking for FCC... no
checking for KCC... no
checking for RCC... no
checking for xlC_r... no
checking for xlC... no
checking whether the C++ compiler works... no
configure: error: in `/home/jd/Downloads/jmtpfs-0.3':
configure: error: C++ compiler cannot create executables
See `config.log' for more details
After this when I try make and make install it says
make: *** No targets specified and no makefile found. Stop.
I also tried the latest jmtpfs package too with the same results, what am I doing wrong?
Is this because of the compiler errors above? Any help would really be great. I use Airdroid normally but I would love to try your method. Thank you.
You have to install g++
sudo apt-get install g++
I installed libmagic-dev, autoconf and automake. Before running ./configure, I ran autoreconf, and that also seemed to fix it.
You can do most operations much quicker than with mtpfs, but it's still silly-slow to do something like 'tree'. MTP really sucks in some use-cases. DON'T think of it as a filesystem!
jangutter said:
I installed libmagic-dev, autoconf and automake. Before running ./configure, I ran autoreconf, and that also seemed to fix it.
You can do most operations much quicker than with mtpfs, but it's still silly-slow to do something like 'tree'. MTP really sucks in some use-cases. DON'T think of it as a filesystem!
Click to expand...
Click to collapse
I agree. It's way slower than UMS. Granted, on mac, google's own Android File Transfer app works way faster than jmtpfs or mtpfs (it's very buggy and unreliable though)
Hey Rimher,
Thanks for that I installed g++
No when I try to run through the ./configure command I get this
checking for FUSE... no
configure: error: Package requirements (fuse >= 2.6) were not met:
No package 'fuse' found
Any ideas?
jd1001 said:
Hey Rimher,
Thanks for that I installed g++
No when I try to run through the ./configure command I get this
checking for FUSE... no
configure: error: Package requirements (fuse >= 2.6) were not met:
No package 'fuse' found
Any ideas?
Click to expand...
Click to collapse
it's pretty self explanatory. You need to install fuse, as mentioned in OP.
jd1001 said:
Hey Rimher,
Thanks for that I installed g++
No when I try to run through the ./configure command I get this
checking for FUSE... no
configure: error: Package requirements (fuse >= 2.6) were not met:
No package 'fuse' found
Any ideas?
Click to expand...
Click to collapse
sudo apt-get install libfuse-dev
sudo apt-get install libmagic-dev
you have to install a bunch of libraries, not sure if those two are enough, try it
Hello, this is my first dev posting, so let me know if there is anything missing...
I have a Samsung Galaxy SIII S3 SGH-I747M (Bell) with Jelly Bean 4.1.1 kernel 3.0.31 (stock rooted, root66_BMC_I747MVLDLK4.7z). I also have an Asix USB LAN adapter (from monoprice) + USB OTG cable which did not work out of the box... but i am a software engineer... so I made it work. The process below should work for other carriers / modules if you find the proper kernel source. Compiling latest drivers directly from Asix is the best method... Read that part first!
Read the README that comes with your kernel source, you may need a different compiler! https://github.com/AdiPat/Android_Toolchains is where I got mine...
Details about the Asix AX88772 USB lan RJ45 adapter chipset can be found here:
http://www.asix.com.tw/products.php?op=pItemdetail&PItemID=86;71;101
You can skip to "Usage instructions" section and download pre-compiled modules, if you have identical kernel + phone
built from SGH-I747M_BMC_JB_Opensource.zip (I747MVLDLK4, my phone) + latest Asix driver, works great!!!
https://www.dropbox.com/sh/3lrhwdf2vxe5z90/Hr3-nYX4Ff
built from SGH-I747M_BMC_JB_Opensource.zip (I747MVLDLK4, my phone) stock kernel driver, 'insmod's, but 'ping' is flaky?
https://www.dropbox.com/sh/u068760ytpsn0k1/3di6Wg44ja
built from GT-I930_JB_Opensource_Update7.zip (I9300XXELLA, requested by gingerneil), stock kernel driver, works great!!!
https://www.dropbox.com/sh/5emvafthv061fp6/BKcakiOie8
built from GT-I930_JB_Opensource_Update8.zip (EMR2, requested by gingerneil), stock kernel driver, untested
https://www.dropbox.com/sh/rmc1n4yxckg01zy/a2V5hvIp20
built from Cyanogenmod 10 for i9300, git commit 43aaedbcde478c8e032771d62a1956133b29b1d4, untested
https://www.dropbox.com/sh/n1tdiap4pi2vzm8/TKAj_lChXA
built from Android 4.1.1 for Galaxy Tab 2 (GT-P5110) kernel 3.0.31-523998, contact 'patelkes' if you have questions.
https://www.dropbox.com/sh/r0zkg5do2n3lyg3/fWWyhsz2qy
built from Android 4.? for Xperia Tablet Z ROM (10.3.1.C.0.136), contact 'kristouf666' if you have questions.
https://www.dropbox.com/sh/nxqo1ipkbojakls/eDLHXJzl5s
built from Cyanogenmod 10.1.3 for SGH-i747m, git commit ?
Work in progress
Build environment setup:
-Get root access on a Ubuntu Natty (11.04) or similar linux build machine / virtual machine
-Install standard unix compiler tools
apt-get install build-essential-Install library for menuconfig
apt-get install libncurses5-dev-Install lzop (android compression util)
apt-get install lzop-Install git
apt-get install git-Download Android toolchains using git
cd /root
git clone https://github.com/AdiPat/Android_Toolchains.git-Download samsung kernel SGH-I747M_BMC_JB_Opensource.zip (international model, etc, also available)... Or download your 3rd party Cyanogenmod,etc kernel SOURCE instead.
-Extract to /root/kernel
mkdir /root/kernel
cd /root/kernel
unzip SGH-I747M_BMC_JB_Opensource.zip-Set path so Android compiler can be found
export CROSS_COMPILE=/root/Android_Toolchains/arm-eabi-4.4.3/bin/arm-eabi-**EDIT: newer kernels, such as Cyanogenmod 10.2.1, use this
export CROSS_COMPILE=/root/Android_Toolchains/arm-eabi-4.6/bin/arm-eabi-
Compiling built-in kernel modules: (left for documentation sake, the better method is "Compiling latest drivers directly from Asix")
-Generate '.config' file in kernel folder (replace 'm2_att_defconfig' with name of file in 'arch\arm\configs\')
make arch=arm m2_att_defconfig-Modify kernel config to include Asix module and usbnet module
make menuconfig
[Navigate using arrow keys and enter]
Device Drivers ->
Network device support ->
USB Network Adapters ->
Multi-Purpose USB Networking Framework ->
[PRESS SPACEBAR until an M appears on the left]
[M] Multi-purpose USB Networking Framework
[M] ASIX AX88xxx Based USB 2.0 Ethernet Adapters
For reference here is the help info for the 2 options that are now set to 'M'
-Compile modules, where 2 is the number of CPU cores you have (speeds it up)
make -j2 && make -j2 modules-Once finished, grab your modules
/root/kernel/drivers/net/usb/usbnet.ko
/root/kernel/drivers/net/usb/asix.ko
Usage instructions:
-Use a root explorer such as ES File manager
Mount /system as rw in ES File manager root settings
copy asix.ko and usbnet.ko to /system/lib/modules/-Use a terminal emulator / adb shell to load modules (asix depends on usbnet, so load usbnet first)
su
cd /system/lib/modules
insmod usbnet.ko
insmod asix.ko-If there are errors, run 'dmesg' and see section called "Insmod errors"
-If there are no errors, you should see 'eth0' in 'netcfg'
-'lsmod' lists modules loaded
-Connect your USB ethernet adapter to an ethernet network
-netcfg should show eth0 as connected
-Setup ethernet settings, if you want static address, for typical internet router at 192.168.1.1
ifconfig eth0 192.168.1.100 netmask 255.255.255.0
route add default gw 192.168.1.1 dev eth0
setprop net.dns1 192.168.1.1
ip addr show
ip route show-Setup ethernet settings, if you want automatic dhcp address
dhcpcd eth0-If you want one-click enable of your USB, see section "usbnet widget"
Insmod errors:
exec format error : wrong compiler / wrong kernel source / wrong phone
init_module failed usbnet.ko (file exists) : module already loaded or built into kernel
no such file or directory : run dmesg immediately after attempt... you are missing module dependency
can't open usbnet.ko : are you root?
usbnet widget
Install Smanager
Download my usbnet script http://pastebin.com/zQRQ6Kdj
Use a quality notepad editor such as notepad ++ to edit, ensure line endings are "Unix"
Place in /system/lib/modules/usbnet *cannot be on sdcard, as sdcard is a windows filesystem*
In terminal emulator / adb: "chmod 777 /system/lib/modules/usbnet"
Open Smanager
-Menu -> Scripts
-Menu -> Browser -> /system/lib/modules/usbnet
-Ensure "Fav", "SU" and "is executable" are checked and give it a name 'usbnet', press save.
On homescreen, add widget, Smanager, pick your script 'usbnet'
You now have 1 click access to loading the modules, setting IP address, and testing connectivity to your router.
GT-9300 differences (thanks gingerneil)
Kernel source
GT-I930_JB_Opensource_Update7.zip
While building the kernel, the make config step is different
make arch=arm m0_00_defconfig
There is a third module built,
/root/kernel/drivers/net/mii.ko
Usage instructions, new order of operations
insmod mii.ko
insmod usbnet.ko
insmod asix.ko
/system/lib/modules is not persistent on this phone, instead store modules + usbnet script
/system/media
Compiling latest drivers directly from Asix
For some reason on my phone the stock kernel asix module did not work 100%.
I could insmod both modules, and using Wireshark, I verified my computer was receiving 'ping' packets, but the phone wasn't getting any 'ping reply' packets. This latest Asix driver works perfectly for me.
UPDATE:: http://www.asix.com.tw/FrootAttach/...0_772_178_LINUX_DRIVER_v4.13.0_Source.tar.bz2 is available, but I have not tried it!
Follow "Environment setup" above
Code:
cd kernel_src_folder
Generate kernel '.config' file (replace 'm2_att_defconfig' with name of file in 'arch\arm\configs\')
Code:
make arch=arm m2_att_defconfig
Code:
mkdir /root/asix && cd /root/asix
Code:
wget http://www.asix.com.tw/FrootAttach/driver/AX88772B_772A_760_772_178_LINUX_Driver_v4.4.1_Source.zip
Code:
unzip AX88772B_772A_760_772_178_LINUX_Driver_v4.4.1_Source.zip
Code:
rm -rf Makefile
# we are replacing the Makefile with a new one.... if you edit, ensure indents = TABS
Code:
wget [url]http://pastebin.com/raw.php?i=4xLxksX3[/url] -O Makefile
Code:
CROSS_COMPILE=/root/Android_Toolchains/arm-eabi-4.4.3/bin/arm-eabi- make
**EDIT: newer kernels, such as Cyanogenmod 10.2.1, use this
Code:
CROSS_COMPILE=/root/Android_Toolchains/arm-eabi-4.6/bin/arm-eabi- make
Follow the "usage instructions" above, but since this is an "all-in-one" module, remove references to 'usbnet'
Other informational Links
Thanks to viulian for his inspirational post here in regards to compiling external module.
If you want to compare your phone's kernel configuration to the one in the download source from Samsung, read this post:
To see the list of loadable and built-in modules, see this.
More information about compiling kernel modules / asix / other usb chipsets / other devices
Did you know that Asix now manages Moschip products? Looking for MCS7830 drivers?
Thanks to zhlvf for pointing this , there is a way to hack android to think Wifi is connected when an USB ethernet is plugged in... (solves issues in some apps, like google play / market, which ignore USB ethernet as a valid connection).
Make errors documentation
Model number and version code explanation (how to tell which samsung.opensource.com zip file to download)
https://www.kernel.org/doc/Documentation/kbuild/modules.txt
To get the active .config from a Cyanogen mod android,
Code:
adb pull /proc/config.gz
kevinf28 said:
Usage instructions:
-Use a root explorer such as ES File manager
Mount /system as rw in ES File manager root settings
copy asix.ko and usbnet.ko to /system/lib/modules/-Use a terminal emulator / adb shell to load modules (asix depends on usbnet, so load usbnet first)
su
cd /system/lib/modules
insmod usbnet.ko
insmod asix.ko-If there are errors, run 'dmesg'
-If there are no errors, you should see 'eth0' in 'netcfg'
-Connect your USB ethernet adapter to an ethernet network
-netcfg should show eth0 as connected
-Setup ethernet settings, if you want static address, for typical internet router at 192.168.1.1
ifconfig eth0 192.168.1.100 netmask 255.255.255.0
route add default gw 192.168.1.1 dev eth0
setprop net.dns1 192.168.1.1-Setup ethernet settings, if you want automatic dhcp address
dhcpd eth0
Click to expand...
Click to collapse
Hi,
I have tried to insert your modules (I have the 3.0.31 kernel on the international S3) - but I get "exec format error". This is after placing your files in right place, and running under root through terminal emulator. Any idea why I am getting this error, and how to get around it ?
gingerneil said:
Hi,
I have tried to insert your modules (I have the 3.0.31 kernel on the international S3) - but I get "exec format error". This is after placing your files in right place, and running under root through terminal emulator. Any idea why I am getting this error, and how to get around it ?
Click to expand...
Click to collapse
Unfortunately, you are not running an "identical" kernel. Linux is particularly fussy with kernel modules, it has to be a perfect match.
Android takes a generic 3.0.31 linux kernel and applies device specific patches. So my i747 3.0.31 kernel is not identical to your i9300 3.0.31.
I can build the modules for you, since I already have the environment setup. Please visit http://opensource.samsung.com/reception/receptionSub.do?method=search&searchValue=i9300 and let me know which one sounds correct..
kevinf28 said:
I can build the modules for you, since I already have the environment setup. Please visit http://opensource.samsung.com/reception/receptionSub.do?method=search&searchValue=i9300 and let me know which one sounds correct..
Click to expand...
Click to collapse
That would be fantastic - thanks. I am running the internation i9300 - so I would go with the top one -
GT-I9300_JB_Opensource_Update7.zip
But I'm not sure what may be different across the updates.
I assume that is doesnt matter which ROM I am running, and that a full Rom Manager backup would also backup my stock kernel ?
gingerneil said:
That would be fantastic - thanks. I am running the internation i9300 - so I would go with the top one -
GT-I9300_JB_Opensource_Update7.zip
But I'm not sure what may be different across the updates.
I assume that is doesnt matter which ROM I am running, and that a full Rom Manager backup would also backup my stock kernel ?
Click to expand...
Click to collapse
Kernel loadable modules are completely inert by themselves, so there is no need to worry about your phone bricking [but a backup never hurts].
If you build modules into the kernel itself on the other hand, its possible for the kernel to fail / panic / etc, so I don't plan on building any kernel packages.
Please see the OP for the 9300 modules. Hope they work! What is your full kernel version string and baseband version from "About Device" page?
kevinf28 said:
Kernel loadable modules are completely inert by themselves, so there is no need to worry about your phone bricking [but a backup never hurts].
If you build modules into the kernel itself on the other hand, its possible for the kernel to fail / panic / etc, so I don't plan on building any kernel packages.
Please see the OP for the 9300 modules. Hope they work! What is your full kernel version string and baseband version from "About Device" page?
Click to expand...
Click to collapse
It's giving a ' no such file or directory' error - even though the files are there and I'm running insmod from the dir as su. See terminal screen shot. thanks for the help!
Re: [Driver] Asix AX88772 kernel module
I updated the OP with insmod errors
It does look like GT-I9300_JB_Opensource_Update7.zip JB 4.1.2 matches your I9300XXELLA baseband version.
http://www.androidgalaxys.net/news-...gente-samsung-per-galaxy-s3-di-android-4-1-2/
http://www.androidgalaxys.net/appro...punto-esclamativo-rosso-come-nuovo-controllo/
kevinf28 said:
I updated the OP with insmod errors
It does look like GT-I9300_JB_Opensource_Update7.zip JB 4.1.2 matches your I9300XXELLA baseband version.
http://www.androidgalaxys.net/news-...gente-samsung-per-galaxy-s3-di-android-4-1-2/
http://www.androidgalaxys.net/appro...punto-esclamativo-rosso-come-nuovo-controllo/
Click to expand...
Click to collapse
Thanks - so it looks like I have some module dependancy issues. I'll take a look at dmesg and see whats going on. Seems strange though, if the zip does match everything...
Maybe I should go back to a stock ROM as I am currently running a de-odexed stock.
gingerneil said:
Thanks - so it looks like I have some module dependancy issues. I'll take a look at dmesg and see whats going on. Seems strange though, if the zip does match everything...
Maybe I should go back to a stock ROM as I am currently running a de-odexed stock.
Click to expand...
Click to collapse
It may be something trival, perhaps there is a third module you need for the international version.. I can't load your modules to test them, I get the exec format error . In regular linux, ldd is an amazing tool to list all the module deps, but unfortunately, it doesn't work for ARM, and arm-eabi-ldd does not exist in my toolchain.
[Edit: I have edited the OP, I rebuilt the modules and they do have some binary differences... give them a try as well]
Just curious... what are you using the USB-LAN adapter for with the USB-OTG?
CZ Eddie said:
Just curious... what are you using the USB-LAN adapter for with the USB-OTG?
Click to expand...
Click to collapse
Work does not allow wifi. I want to be able to download stuff without using data.
kevinf28 said:
It may be something trival, perhaps there is a third module you need for the international version.. I can't load your modules to test them, I get the exec format error . In regular linux, ldd is an amazing tool to list all the module deps, but unfortunately, it doesn't work for ARM, and arm-eabi-ldd does not exist in my toolchain.
[Edit: I have edited the OP, I rebuilt the modules and they do have some binary differences... give them a try as well]
Click to expand...
Click to collapse
Thanks - I'll give them a go. I went back to stock LLA ROM and it still didnt work.
---------- Post added at 03:24 PM ---------- Previous post was at 03:22 PM ----------
CZ Eddie said:
Just curious... what are you using the USB-LAN adapter for with the USB-OTG?
Click to expand...
Click to collapse
I'd like to use it for syncing files from my server without having to dig out my laptop to piggy back of its ethernet. Films can take an age to copy over wifi compared to LAN.
Having another go at getting the modules in. I am setting up the environment with the aim of compiling with the modules in and flashing the full kernel rather than adding via insmod....
gingerneil said:
Having another go at getting the modules in. I am setting up the environment with the aim of compiling with the modules in and flashing the full kernel rather than adding via insmod....
Click to expand...
Click to collapse
Cool. README_Kernel.txt is important, the make configure step is slightly different.
kevinf28 said:
Cool. README_Kernel.txt is important, the make configure step is slightly different.
Click to expand...
Click to collapse
OK - will see how I get on. Any tips would be great, as this will be my first attempt at compiling! The only linux based system I have it a raspberry pi connected to my TV running raspbmc. Currently seems to be running through the steps ok though.
Dmesg log attached - couldnt see how to attach on a pm!
gingerneil said:
Dmesg log attached - couldnt see how to attach on a pm!
Click to expand...
Click to collapse
Easy one, you are missing the 'mii' module,
<4>[ 3929.962119] c1 usbnet: Unknown symbol mii_nway_restart (err 0)
<4>[ 3929.962173] c1 usbnet: Unknown symbol mii_link_ok (err 0)
<4>[ 3929.962225] c1 usbnet: Unknown symbol mii_ethtool_sset (err 0)
<4>[ 3929.962270] c1 usbnet: Unknown symbol mii_ethtool_gset (err 0)
The pastebin link http://pastebin.com/wNaBWvZG references "Selects: MII [=m]"
On my phone, it didn't complain about mii, so i didn't think it was needed
https://www.dropbox.com/sh/5emvafthv061fp6/BKcakiOie8 has mii.ko, so load that first, then usbnet, then asix.
I also updated the OP to include a usbnet widget for one click module loading... that script would have to be modified to include insmod mii.ko
kevinf28 said:
Easy one, you are missing the 'mii' module,
<4>[ 3929.962119] c1 usbnet: Unknown symbol mii_nway_restart (err 0)
<4>[ 3929.962173] c1 usbnet: Unknown symbol mii_link_ok (err 0)
<4>[ 3929.962225] c1 usbnet: Unknown symbol mii_ethtool_sset (err 0)
<4>[ 3929.962270] c1 usbnet: Unknown symbol mii_ethtool_gset (err 0)
The pastebin link http://pastebin.com/wNaBWvZG references "Selects: MII [=m]"
On my phone, it didn't complain about mii, so i didn't think it was needed
https://www.dropbox.com/sh/5emvafthv061fp6/BKcakiOie8 has mii.ko, so load that first, then usbnet, then asix.
I also updated the OP to include a usbnet widget for one click module loading... that script would have to be modified to include insmod mii.ko
Click to expand...
Click to collapse
Fantastic - mods loaded, will test when I get home. Thanks too for the widget script!
Mods loaded and ethernet up and running - brilliant!
Only one issue now - I can't get the script to persist after a reboot unless it's somewhere like /sdcard0/download or on the extsdcard. It just gets deleted. I then can't get it to execute from there as I can't change the permission. Need to keep fiddling to find something that works. Minor issue tho!
Do the mods persist in /system/lib/modules ?
What about /data? That is your sdcard as ext4.
If all else fails...have you tried remounting /system as read only to force writes to disk? (Cache issue)
Sent from my SGH-I747M using xda app-developers app
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android.permission.READ_EXTERNAL_STORAGE
android.permission.ACCESS_NETWORK_STATE
If ProGuard enabled, need to add the following options in the "proguard-project.txt".
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Yesterday, I cross-compiled DropBear for the 2nd Gen Fire TV, but I am receiving a linkage error that points to it being compiled with an incorrect toolchain.
I downloaded and extracted the "android-ndk-r10e-linux-x86_64.bin" and used the following command to make the standalone toolchain:
Code:
/home/william/android-ndk/build/tools/make-standalone-toolchain.sh --ndk-dir=/home/william/android-ndk --platform=android-21 --toolchain=arm-linux-androideabi-4.9 --system=linux-x86_64 --install-dir=/home/william/aftv2-toolchain
What are the correct platform and toolchain for the AFTV2 on 5.0.4? I tried to look this up, but I was unable to find it posted in any of the expected places. If I don't hear back, I suppose I'll give it a try with aarch64-linux-android-4.9, because the error I'm receiving when I try to connect to server complains about the bitness of "libc.so" (is 32-bit instead of 64-bit), but I can't even seem to find confirmation that the AFTV2 uses a 64-bit arm processor.
Thanks,
William
fecaleagle said:
Yesterday, I cross-compiled DropBear for the 2nd Gen Fire TV, but I am receiving a linkage error that points to it being compiled with an incorrect toolchain.
I downloaded and extracted the "android-ndk-r10e-linux-x86_64.bin" and used the following command to make the standalone toolchain:
Code:
/home/william/android-ndk/build/tools/make-standalone-toolchain.sh --ndk-dir=/home/william/android-ndk --platform=android-21 --toolchain=arm-linux-androideabi-4.9 --system=linux-x86_64 --install-dir=/home/william/aftv2-toolchain
What are the correct platform and toolchain for the AFTV2 on 5.0.4? I tried to look this up, but I was unable to find it posted in any of the expected places. If I don't hear back, I suppose I'll give it a try with aarch64-linux-android-4.9, because the error I'm receiving when I try to connect to server complains about the bitness of "libc.so" (is 32-bit instead of 64-bit), but I can't even seem to find confirmation that the AFTV2 uses a 64-bit arm processor.
Thanks,
William
Click to expand...
Click to collapse
Yes, you need aarch64. I've used both the NDK and the aarch64 compiler straight from AOSP. Both work.
rbox said:
Yes, you need aarch64. I've used both the NDK and the aarch64 compiler straight from AOSP. Both work.
Click to expand...
Click to collapse
Thanks, I actually just rebuilt the toolchain with aarch64 and re-compiled. I'll follow-up, because I'm assuming that was the only thing preventing the server from functioning properly. Thanks for all your assistance.
fecaleagle said:
Thanks, I actually just rebuilt the toolchain with aarch64 and re-compiled. I'll follow-up, because I'm assuming that was the only thing preventing the server from functioning properly. Thanks for all your assistance.
Click to expand...
Click to collapse
Well, I'm obviously still doing something wrong. The file command on my build-system reports:
Code:
./dropbearmulti: ELF 64-bit LSB executable, ARM aarch64, version 1 (SYSV), statically linked, stripped
, which looks correct.
But clients are still receiving the following error when I try to connect to the server:
Code:
CANNOT LINK EXECUTABLE DEPENDENCIES: "libc.so" is 32-bit instead of 64-bit
I'll keep digging, but basically, I am building the toolchain like so:
Code:
/home/william/android-ndk/build/tools/make-standalone-toolchain.sh --ndk-dir=/home/william/android-ndk --platform=android-21 --toolchain=aarch64-linux-android-4.9 --system=linux-x86_64 --install-dir=/home/william/aftv2-toolchain
Then running configure:
Code:
./configure --build=x86_64-unknown-linux-gnu --host=aarch64-linux-android --prefix=/home/william/aftv2-toolchain --disable-zlib --disable-largefile --disable-loginfunc --disable-shadow --disable-utmp --disable-utmpx --disable-wtmp --disable-wtmpx --disable-pututline --disable-pututxline --disable-lastlog
Then, I am setting CC and PATH to the following:
Code:
CC=aarch64-none-linux-gnueabi-gcc
PATH=/home/william/aftv2-toolchain/bin:$PATH
Then, I am building as such:
Code:
STATIC=1 MULTI=1 SCPPROGRESS=0 PROGRAMS="dropbear dropbearkey scp dbclient" make strip
No complaints during the build or from the file command, but the issue persists. Surely I am missing something.
Interesting. So when I poke around my toolchain, all of the copies of libc.so are 64-bit, according to the linux file command.
However, just to see if it would tell me anything, I compiled the binary dynamically-linked rather than statically linked and used the ndk-depends tool, and it reports the following:
Code:
Building dependency graph...
dropbearmulti depends on: libc.so libdl.so
Android system library: libc.so
Android system library: libdl.so
Building sorted list of binaries:
dropbearmulti -> ./dropbearmulti
libdl.so -> $ /system/lib/libdl.so
libc.so -> $ /system/lib/libc.so
This obviously indicates that when I build dynamic, it is attempting to link with the 32-bit libraries and not the 64-bit libraries. How can I correct this so that when I do any build, the linkages are correct?
fecaleagle said:
Interesting. So when I poke around my toolchain, all of the copies of libc.so are 64-bit, according to the linux file command.
However, just to see if it would tell me anything, I compiled the binary dynamically-linked rather than statically linked and used the ndk-depends tool, and it reports the following:
Code:
Building dependency graph...
dropbearmulti depends on: libc.so libdl.so
Android system library: libc.so
Android system library: libdl.so
Building sorted list of binaries:
dropbearmulti -> ./dropbearmulti
libdl.so -> $ /system/lib/libdl.so
libc.so -> $ /system/lib/libc.so
This obviously indicates that when I build dynamic, it is attempting to link with the 32-bit libraries and not the 64-bit libraries. How can I correct this so that when I do any build, the linkages are correct?
Click to expand...
Click to collapse
I was compiling kexec dynamically by setting CC and it was working. And I've compiled other things with Android.mk files using the NDK and compiling them static and it worked. Why are you compiling dropbear static to begin with? You say CLIENTS are receiving that message. It almost sounds like dropbear is trying to fork a 32bit shell for them. Since you are running dropbear as the server fine, itself is compiled correctly...
rbox said:
I was compiling kexec dynamically by setting CC and it was working. And I've compiled other things with Android.mk files using the NDK and compiling them static and it worked. Why are you compiling dropbear static to begin with? You say CLIENTS are receiving that message. It almost sounds like dropbear is trying to fork a 32bit shell for them. Since you are running dropbear as the server fine, itself is compiled correctly...
Click to expand...
Click to collapse
I'm compiling static because I'm following the guide posted here:
http://forum.xda-developers.com/nexus-7-2013/general/guide-compiling-dropbear-2015-67-t3142412
Running the dynamically-linked version on the fire tv reports:
Code:
error: only position independent executables (PIE) are supported.
I suppose I should be reaching out to @jocala at this point, since I'd guess he's managed to compile it successfully for the 2nd gen fire tv.
fecaleagle said:
I'm compiling static because I'm following the guide posted here:
http://forum.xda-developers.com/nexus-7-2013/general/guide-compiling-dropbear-2015-67-t3142412
Running the dynamically-linked version on the fire tv reports:
Code:
error: only position independent executables (PIE) are supported.
Click to expand...
Click to collapse
http://stackoverflow.com/questions/...id-l-error-only-position-independent-executab
You need to enable PIE in CFLAGS and LDFLAGS:
CFLAGS = -fPIE
LDFLAGS = -fPIE -pie
fecaleagle said:
I suppose I should be reaching out to @jocala at this point, since I'd guess he's managed to compile it successfully for the 2nd gen fire tv.
Click to expand...
Click to collapse
I'm working on the adbFire update for AFTV2 root; ssh is on the list, but I'm not there yet.
rbox said:
http://stackoverflow.com/questions/...id-l-error-only-position-independent-executab
You need to enable PIE in CFLAGS and LDFLAGS:
CFLAGS = -fPIE
LDFLAGS = -fPIE -pie
Click to expand...
Click to collapse
Doing this allows it startup correctly dynamically linked, but clients still fail to connect. Debian reports the most useful information:
Code:
dispatch_protocol_error: type 51 seq 6
CANNOT LINK EXECUTABLE DEPENDENCIES: "libc.so" is 32-bit instead of 64-bit
As usual, dropbear reports:
Code:
[6329] Jan 04 13:48:35 Child connection from 192.168.1.210:53425
void endusershell()(3) is not implemented on Android
void endusershell()(3) is not implemented on Android
[6329] Jan 04 13:48:42 password auth succeeded for 'root' from 192.168.1.210:53425
[6329] Jan 04 13:48:43 Exit (root): Disconnect received
To me, it appears that the server is throwing up the error to the client, but I still suspected that I am linking the 32-bit version of libc.so when I build dropbear, and I am still at a loss for how to correct that.
Thanks for all of your help. I'll get there eventually.
fecaleagle said:
Doing this allows it startup correctly dynamically linked, but clients still fail to connect. Debian reports the most useful information:
Code:
dispatch_protocol_error: type 51 seq 6
CANNOT LINK EXECUTABLE DEPENDENCIES: "libc.so" is 32-bit instead of 64-bit
As usual, dropbear reports:
Code:
[6329] Jan 04 13:48:35 Child connection from 192.168.1.210:53425
void endusershell()(3) is not implemented on Android
void endusershell()(3) is not implemented on Android
[6329] Jan 04 13:48:42 password auth succeeded for 'root' from 192.168.1.210:53425
[6329] Jan 04 13:48:43 Exit (root): Disconnect received
To me, it appears that the server is throwing up the error to the client, but I still suspected that I am linking the 32-bit version of libc.so when I build dropbear, and I am still at a loss for how to correct that.
Thanks for all of your help. I'll get there eventually.
Click to expand...
Click to collapse
Dropbear itself is 64-bit, because you are actually running it fine. If you could turn up the logging on dropbear, maybe you can get it to tell you what it's doing between password succeeded and disconnect received. Or you could just add a ton of logging to the code. My guess is it's forked the connection and trying to start a secondary program, and that program isn't 64bit. My guess would be the shell, but it should just be using the system shell, so unsure.
jocala said:
I'm working on the adbFire update for AFTV2 root; ssh is on the list, but I'm not there yet.
Click to expand...
Click to collapse
Thanks for your work on adbFire. I'll report back if I'm ever able to get this resolved.
rbox said:
Dropbear itself is 64-bit, because you are actually running it fine. If you could turn up the logging on dropbear, maybe you can get it to tell you what it's doing between password succeeded and disconnect received. Or you could just add a ton of logging to the code. My guess is it's forked the connection and trying to start a secondary program, and that program isn't 64bit. My guess would be the shell, but it should just be using the system shell, so unsure.
Click to expand...
Click to collapse
This suggestion is making more and more sense. I'll take a look at the source and start thinking about my own patchset for the latest source version. I'm annoyed that the verbose flag is not included in the source version of dropbear that the patch was created for, so I think I will end up going that route eventually. I'll take your advice and focus adding debug messages when dropbear initializes the shell, since the authentication goes of without a hitch and it's at that point that the process breaks down. I really appreciate all of your suggestions!
@rbox,
This is rather helpful, and the post from July 31st, 2015 all but confirms your suspicion about forking the shell and points me in the right direction:
http://www.kevinboone.net/kbox3_diary.html
I will start by modifying the patches to use: /bin/sh rather than /system/bin/sh when launching the shell and see if that resolves my issue, then get started on the long slog.
The blog post above seems to have shed some light on the issue. Updating the patches to refer to /bin/sh rather than /system/bin/sh seems to have resolved the "CANNOT LINK EXECUTABLE DEPENDENCIES: "libc.so" is 32-bit instead of 64-bit" error. As @rbox suspected, dropbear seems to be creating the appropriate shell upon connect now on a 64-bit system (aftv2).
Unfortunately, I'm still receiving the "dispatch_protocol_error":
Code:
dispatch_protocol_error: type 51 seq 6
[5761] Jan 04 19:47:46 Exit (root): Child failed
Connection to 192.168.1.213 closed.
Any thoughts on this one @jocala? Googling dispatch_protocol_error type 51 returns zilch.
Hey,
Looking around online there seems to be a lot of confusion on kernel parameters and what they do, so let's get a central thread going to clarify exactly what each kernel paramter does.
Here's what I've come up with after a lot of trial and error, I know if this information was more readily avaible it would have saved me a fair chunk of time.
Please feel free to add to the list and I will try to maintain the list as I continue to verify and understand what each parameter does.
INSTALL=1 #Run an installer, ( Extracting kernel,initrd.img,system.sfs & ramdisk.img from the iso and adding a new grub entry is sufficient. I dunno, it must be a linux thing, you windows boys wont get it? )
root=/dev/ram0 #needs more explanation
SRC=/android/ #the location of system.img&ramdisk.img
DATA=/path #the directory to use for persistent storage. this path is relative to the SRC directory Alternatively, DATA can be assigned a block device.
CREATE_DATA_IMG=1 #needs more explanation
DATA_IN_MEM=1 #Needs verifying and more clarification
REMOUNT_RW=1 #Enable rw remount of /system
VULKAN=1 #Enable VULKAN api support
nomodeset #?disable autodetecting video output settings
vga=0x1d4 #load specific video output. To determine supported modes, at the grub loading screen press c to enter the console and use the command vbeinfo
XxyZ4114 said:
INSTALL=1 #Run an installer, ( Extracting kernel,initrd.img,system.sfs & ramdisk.img from the iso and adding a new grub entry is sufficient. I dunno, it must be a linux thing, you windows boys wont get it? )
root=/dev/ram0 #needs more explanation
SRC=/android/ #the location of system.img&ramdisk.img
DATA=/path #the directory to use for persistent storage. this path is relative to the SRC directory Alternatively, DATA can be assigned a block device.
CREATE_DATA_IMG=1 #needs more explanation
DATA_IN_MEM=1 #Needs verifying and more clarification
REMOUNT_RW=1 #Enable rw remount of /system
VULKAN=1 #Enable VULKAN api support
nomodeset #?disable autodetecting video output settings
vga=0x1d4 #load specific video output. To determine supported modes, at the grub loading screen press c to enter the console and use the command vbeinfo
Click to expand...
Click to collapse
Most of these are documented in our https://docs.blissroms.com site. If you find anything that might need to be added, the repo can be found here: https://github.com/BlissRoms/Documentation-release and commits can be sent for review to https://review.blissroms.com
Thanks for helping out so far
XxyZ4114 said:
INSTALL=1 #Run an installer, ( Extracting kernel,initrd.img,system.sfs & ramdisk.img from the iso and adding a new grub entry is sufficient. I dunno, it must be a linux thing, you windows boys wont get it? )
root=/dev/ram0 #needs more explanation
SRC=/android/ #the location of system.img&ramdisk.img
DATA=/path #the directory to use for persistent storage. this path is relative to the SRC directory Alternatively, DATA can be assigned a block device.
CREATE_DATA_IMG=1 #needs more explanation
DATA_IN_MEM=1 #Needs verifying and more clarification
REMOUNT_RW=1 #Enable rw remount of /system
VULKAN=1 #Enable VULKAN api support
nomodeset #?disable autodetecting video output settings
vga=0x1d4 #load specific video output. To determine supported modes, at the grub loading screen press c to enter the console and use the command vbeinfo
Click to expand...
Click to collapse
Command is videoinfo BTW...