su --mount-master - LineageOS Questions & Answers

Hello,
I am trying to mount a cifs folder, but I can't mount it on the storage due to the empty folder problem (every app except the one doing the mount sees an empty folder).
To avoid this problem, I need to disable the "mount namespace separation" as proposed in the supersu app or use the --mount-master option of su in terminal emulators. But neither of these options is available in Lineage OS. Does anyone have an idea on how to solve this problem ?
thanks.

Noneangel said:
Hello,
I am trying to mount a cifs folder, but I can't mount it on the storage due to the empty folder problem (every app except the one doing the mount sees an empty folder).
To avoid this problem, I need to disable the "mount namespace separation" as proposed in the supersu app or use the --mount-master option of su in terminal emulators. But neither of these options is available in Lineage OS. Does anyone have an idea on how to solve this problem ?
thanks.
Click to expand...
Click to collapse
The only reason that I can think of is because you may need to (at least temporarily) change your SELinux State to Permissive Mode.
Try using The SELinux Toggler here where you will be able to do so when needed.
[APP][TOOL][4.2+]The SELinux Toggler by Ibuprophen
If all else fails, I believe that the following links may, at least & hopefully, point you in the right direction.
http://www.wetekforums.com/v/index.php?p=/discussion/11415/how-to-mount-shared-nas-folder
https://android.stackexchange.com/questions/135744/mount-samba-cifs-ftp-folder-as-android-local
https://android.stackexchange.com/q...g-cifs-samba-volume-as-a-directory-in-android
Good Luck my Friend!
"Live Long and Prosper..."
~Ambassador S'chn T'gai Spock
Sent via Communicator [D2VZW] from the Bridge of the U.S.S. Enterprise [NCC-1701]

Hi,
thank you for your help.
I tried your app, but after setting it to Permissive, I get Enforcing as the result of
Code:
getenfoce
.
When I tried
Code:
setenforce 0
as root, I got the following error
setenforce: Couldn't set enforcing status to '0': Invalid argument
I also tried the following suggestion.
and even directly the following code in the terminal emulator :
Code:
echo 0 > /sys/fs/selinux/enforce
(I get 1 in return of the echo)
But getenforce still return Enforcing.
root has read and write access to /sys/fs/selinux/enforce

Noneangel said:
Hi,
thank you for your help.
I tried your app, but after setting it to Permissive, I get Enforcing as the result of
Code:
getenfoce
.
When I tried
Code:
setenforce 0
as root, I got the following error
setenforce: Couldn't set enforcing status to '0': Invalid argument
I also tried the following suggestion.
and even directly the following code in the terminal emulator :
Code:
echo 0 > /sys/fs/selinux/enforce
(I get 1 in return of the echo)
But getenforce still return Enforcing.
root has read and write access to /sys/fs/selinux/enforce
Click to expand...
Click to collapse
The app requires SuperSU and BusyBox. Do you have them installed and their Binaries installed too?
"Live Long and Prosper..."
~Ambassador S'chn T'gai Spock
Sent via Communicator [D2VZW] from the Bridge of the U.S.S. Enterprise [NCC-1701].

Ibuprophen said:
The app requires SuperSU and BusyBox. Do you have them installed and their Binaries installed too?
Click to expand...
Click to collapse
Yes, I have SuperSU and BusyBox and their Binaries installed. I installed SuperSU using the google play store, and then by flashing the zip file (the play store couldn't update the binary).
But I still have the same issue with the app.

Hi,
I change my kernel to prime kernel, and I can finally change selinux to permissive. But I still have the same problem : the mounted folder is empty for any other app except the terminal from which I mounted it.

Noneangel said:
Yes, I have SuperSU and BusyBox and their Binaries installed. I installed SuperSU using the google play store, and then by flashing the zip file (the play store couldn't update the binary).
But I still have the same issue with the app.
Click to expand...
Click to collapse
Are the BusyBox Binaries installed in the /system/xbin?
"Live Long and Prosper..."
~Ambassador S'chn T'gai Spock
Sent via Communicator [D2VZW] from the Bridge of the U.S.S. Enterprise

Ibuprophen said:
Are the BusyBox Binaries installed in the /system/xbin?
Click to expand...
Click to collapse
They were installed in /su/xbin or /su/bin, I don't remember. I installed them to /system/xbin and did the following :
Code:
su
setenforce 0
mkdir /storage/emulated/0/Music/tmp/
chmod 777 /storage/emulated/0/Music/tmp/
su -mm -c busybox mount -t cifs -o username=admin,password=******* //192.168.**.**/music /storage/emulated/0/Music/tmp/
But again, the folder looks empty from other app.

Noneangel said:
They were installed in /su/xbin or /su/bin, I don't remember. I installed them to /system/xbin and did the following :
Code:
su
setenforce 0
mkdir /storage/emulated/0/Music/tmp/
chmod 777 /storage/emulated/0/Music/tmp/
su -mm -c busybox mount -t cifs -o username=admin,password=******* //192.168.**.**/music /storage/emulated/0/Music/tmp/
But again, the folder looks empty from other app.
Click to expand...
Click to collapse
Try looking/asking in the following thread. They seem to be a bit more involved with what you're experiencing.
http://forum.xda-developers.com/showthread.php?t=3034245
"Live Long and Prosper..."
~Ambassador S'chn T'gai Spock
Sent via Communicator [D2VZW] from the Bridge of the U.S.S. Enterprise

Related

Regaws Root Method???

Is there something additional I need to do to actually gain "root"? I can't install the clear lock screen from smurf, can't wireless tether.... Don't know what's going on, all of this used to work fine on my Hero - what am I missing?
I don't think you have given enough info for people to even know what the problem is that you are having. Maybe you could be a bit more specific. Do you have superuser installed?
Sorry about that.... basically im on stock 2.2 with supposed "root" using regaws method - problem is, I can't use anything though; adb, wireless tether, I can't flash a lock screen (just sits at boot screen).
Download superuser app from the market place or google it if it is not on your phone already. Install it then launch an app that requires root. You will know real fast if you are rooted.
DomSim said:
Download superuser app from the market place or google it if it is not on your phone already. Install it then launch an app that requires root. You will know real fast if you are rooted.
Click to expand...
Click to collapse
I do have SU... that's the thing but when I try ADB Remount it says device not permitted or something like that, can't remember exactly
You could try full wipe / reflash.
Maybe try a diff ROM too.
You need to flash the engineering bootloader (0.76.2000). Go to Toast's method part 2 and follow the steps to unlock nand. You need the engineering bootloader in order to access /system.
Sent from my PC36100 using XDA App
sombdy said:
You need to flash the engineering bootloader (0.76.2000). Go to Toast's method part 2 and follow the steps to unlock nand. You need the engineering bootloader in order to access /system.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Nand root... I was looking for more info on this, I thought it was the culprit, thanks - ill post results, hopefully good
Edit: Won't work "Permission denied" .... this is really starting to piss me off grrr
DirtyShroomz said:
Nand root... I was looking for more info on this, I thought it was the culprit, thanks - ill post results, hopefully good
Edit: Won't work "Permission denied" .... this is really starting to piss me off grrr
Click to expand...
Click to collapse
Have you run Unrevoked Forever? This will turn off security permissions and should then allow you to flash anything.
Sent from my PC36100 using XDA App
Ok, the reason
Code:
adb remount
doesn't work is because the boot.img isn't patched to allow that, because I forgot to at the time of posting. You still have root (as long as you actually completed the guide successfully), that's just an all time access root through adb
To acheive the same results, type
Code:
adb shell
type
Code:
su
you will then see #. thats root.
Then remount your /system partition using
Code:
mount -o rw,remount / /system
there you go.
regaw_leinad said:
Ok, the reason
Code:
adb remount
doesn't work is because the boot.img isn't patched to allow that, because I forgot to at the time of posting. You still have root (as long as you actually completed the guide successfully), that's just an all time access root through adb
To acheive the same results, type
Code:
adb shell
type
Code:
su
you will then see #. thats root.
Then remount your /system partition using
Code:
mount -o rw,remount / /system
there you go.
Click to expand...
Click to collapse
When I try to type "su" it says "Permission denied"
DirtyShroomz said:
When I try to type "su" it says "Permission denied"
Click to expand...
Click to collapse
Do you have usb debugging on?
Try the new 1 click root in the dev forum. Unrevoked 3.2. See if that doesn't do the trick.
Sent from my PC36100 using XDA App
My guess is you didn't flash the 2.2-root.zip at the end then.. That's the best I can do w/ the info you've given.
one was already asked once but i had two questions
1. Is USB Debugging turned on or off? Settings > Applications > Development
2. you are using a stock rooted rom. are you trying to use sprint's wireless tether app? Sprint's app wont work you need to download wireless tether from the market.
joebags said:
one was already asked once but i had two questions
1. Is USB Debugging turned on or off? Settings > Applications > Development
2. you are using a stock rooted rom. are you trying to use sprint's wireless tether app? Sprint's app wont work you need to download wireless tether from the market.
Click to expand...
Click to collapse
Running stock 2.2. Regaw I did flash 2.2-root at the end and I am trying to use wireless tether not Sprints hotspot
I do have superuser in my apps list and I was able to install SNeoid, Swype, Setcpu, juicedefender and a few others that may require root but it wont let me do anything via adb or install any themes/mods that come in .zips
DirtyShroomz said:
Running stock 2.2. Regaw I did flash 2.2-root at the end and I am trying to use wireless tether not Sprints hotspot
I do have superuser in my apps list and I was able to install SNeoid, Swype, Setcpu, juicedefender and a few others that may require root but it wont let me do anything via adb or install any themes/mods that come in .zips
Click to expand...
Click to collapse
ok do this in command prompt and paste the results in code tags (to save space)
Code:
adb shell ls /system/bin/
regaw_leinad said:
ok do this in command prompt and paste the results in code tags (to save space)
Code:
adb shell ls /system/bin/
Click to expand...
Click to collapse
Code:
setconsole
dumplayer
svc
e2fsck_recvy
chownto
apph
ps
id
chownThp
notify
dhcpcd
pand
renice
bugreport
snd8k
hciattach
iqfd
top
lsmod
setprop
ionice
ifconfig
iptables
kthp_proxy
logwrapper
getevent
htcipcd
su
start
iqd
wipe
ip
smd
sleep
getWiMAXPropDaemond
newfs_msdos
vdc
sync
udhcpd
pppd
rmmod
fsck_msdos
netstat
route
sound8k
rm
radiooptions
pm
logcat
setWiMAXPropDaemond
resize2fs_recvy
htc_inittest
vmstat
dvz
mmcamera_test
keystore
dmesg
system_server
linker
fbtool
reboot
sdptool
busybox
hd
iftop
insmod
bootcomplete
rild
schedtop
debuggerd
wpa_supplicant
schedtest
bluetoothd
ping
btld
ime
omx_tests
tc
sendevent
racoon
toolbox
date
bma150_usr
bootanimation
wimaxDhcpRenew
log
installd
wimax_uart
applypatch
wimaxAddRoute
dexopt
monkey
ln
getprop
album_hdmiexe
stop
surfaceflinger
uevent
akmd
monitorMTD
wimax_mtd
mv
debug_tool
servicemanager
wimaxDumpKmsg
dumpstate
ipd
DmWrapperTest
nandread
kill
gzip
chmod
rmdir
lsc_camera
dbus-daemon
run-as
netcfg
cat
htclogkernel
sh
mount
printenv
mkdir
bmgr
wimaxDhcpRelease
umount
mke2fs_recvy
dnsmasq
input
df
ioctl
am
wimaxDumpLogcat
app_process
chown
htc_timezonetest
service
netd
ls
netsharing
cam_ins_spmo
mm-venc-omx-test
dalvikvm
ser2net
dmagent
shutdown
ndc
dumpsys
mediaserver
vold
sequansd
awb_camera
dd
keypress
cmp
mscompress
wimaxDumpLastKmsg
mtpd
watchprops
ok, so "su" is in there... you should be able to
Code:
adb shell
su
and it give you a #
try opening SuperUser.apk on your phone, THEN doing the above commands. a pop up should come up on your phone saying to allow root to su
regaw_leinad said:
ok, so "su" is in there... you should be able to
Code:
adb shell
su
and it give you a #
try opening SuperUser.apk on your phone, THEN doing the above commands. a pop up should come up on your phone saying to allow root to su
Click to expand...
Click to collapse
that worked, now to get remount do i have to always use that previous command you wrote?

[modules] cifs.ko, md4.ko, nls_utf8.ko, stock [4.2 / 4.2.2] 3.4.5-g4e6298b / gaf9c307

I have managed to get CIFS working on stock Nexus 10.
It's quite a bit more problematic on the Nexus 10 than normal.
There are 2 main issues to deal with. Newer versions of the Linux kernel require a UNC variable to be passed to them and the current version of busybox doesn't do this. There is a patch out. I have extracted the patched busybox binary from craigacomez's AOSP Nexus 10 rom.
(Check it out here: http://forum.xda-developers.com/showthread.php?t=1998585 ). Otherwise it should work on the stock mount command if you specify the unc= mount option with the share.
The other issue is the multiuser stuff. If you execute the mount command from inside Terminal Emulator (or a script program) it looks like it mounts ok and you can 'ls' in the directory but it doesn't work for Android apps, they just see an empty directory but if you do it via a 'adb shell' it works fine in Android apps. My theory is ADB is outside of the multiuser stuff. adb actually ships on the device.
1) Unlock bootloader (fastboot oem unlock)
2) Flash recovery adb flash recovery whatever.img
3) Root device (flash CWM-SuperSU-0.98.zip)
4) Install BusyBox (from the market)
5) Copy md4.ko and cifs.ko to device. The files can go anywhere you like. In this example I will just use the root of the sdcard. Some people like them in /system/modules or /system/lib/modules
6) busybox mount -o rw,remount /
7) adb shell
8) Override /system/bin/busybox with the patched version (maybe move it first so it's backed up).
9) insmod /sdcard/md4.ko
10) insmod /sdcard/cifs.ko
11) busybox mount -t cifs -o username=MYUSER,password=MYPASS,unc=\\\\192.168.1.1\\storage //192.168.1.1/storage /data/media/0/cifs/Storage
You will need to manually preform the last 3 commands each time you reboot the device from a adb shell.
NOTE: You can probably get rid of the -o flags completely. In theory the patched version of busybox makes the UNC bit redundant. Possibly you can use the stock busybox with the UNC flag and avoid using the patched one totally. I have just included it to be sure.
Make sure you type 'busybox mount' not 'mount', by default they are different binaries. Otherwise you can remove the /system/bin/mount command and make a new one linking /system/bin/mount to /system/bin/busybox.
Possibly there is some way to get the mount working in the multiuser environment without requiring busybox. If you figure it out please tell ☺
Some threads on the issue:
http://forum.xda-developers.com/showthread.php?p=34397868#post34397868
http://forum.xda-developers.com/showthread.php?t=733490&page=6
http://www.mail-archive.com/[email protected]/msg17650.html
The modules are for 3.4.5-g4e6298b.
EDIT: I added nls_utf8.ko by request
EDIT2: Since adb comes on the device, it is possible to use it to connect to local host:
1) Install cifs modules to /system/lib/modules
2) Install Script Manager from the play store
3) Copy script to device
4) Start SManager
5) Find your script and open it.
6) Tick the su box
7) Hit save
8) Goto home sccreen
9) Add a 'SMShortcuts' widget to your home screen
10) "Add one script shortcut"
11) Choose your script
12) Optionally use this pretty icon ☺
13) Give it a nice name like "Mount Shares"
Here is a shell script...
Code:
#!/system/bin/sh
# Your settings here
USERNAME="USERNAME"
PASSWORD="PASSWORD"
IPADDRESS="192.168.1.1"
SHARE="storage"
MOUNT_POINT="/data/media/0/cifs/Storage"
# If you need to change the mount command edit this
MOUNT_CMD="\
mount -t cifs \
\
-o \
user=$USERNAME,\
password=$PASSWORD,\
unc=\\\\\\\\\\\\\\\\$IPADDRESS\\\\\\\\$SHARE \
\
//$IPADDRESS/$SHARE \
$MOUNT_POINT"
COMMANDS="\
insmod /system/lib/modules/md4.ko; \
insmod /system/lib/modules/nls_utf8.ko; \
insmod /system/lib/modules/cifs.ko; \
$MOUNT_CMD
"
# Starting ADB...
PORT=`getprop service.adb.tcp.port`
setprop service.adb.tcp.port 5555
adb kill-server
adb start-server
stop adbd
start adbd
adb connect localhost
# Make sure we only use the first device (sometimes there is more than one)
SERIAL=`adb devices | head -n2 | tail -n1 | cut -f1`
if [ "$SERIAL" = "" ] ; then
echo "ERROR: Could not find ADB device.";
fi
echo Mounting share via adb...
adb -s $SERIAL shell su root -c "$COMMANDS"
# If you started adb, then stop it here for security:
adb disconnect localhost
stop adbd
setprop service.adb.tcp.port $PORT
start adbd
RESULT=`mount | grep $MOUNT_POINT`
if [ "$RESULT" = "" ] ; then
echo "Mounting failed..."
else
echo "Mounting sucess!"
fi
echo Done... You may close this script window.
EDIT3: Added usbserial.ko, option.ko and usb_wwan.ko
EDIT4: Some users have reported that the need to modify the script to get it working with their version of SU.
EDIT5: I have uploaded modules for 4.2.2, kernel 3.4.5-gaf9c307 but I haven't actually tested them myself (still on 4.2.1). Apparently the adb loophole has also been patched but it is possible to reenable it by putting a RSA key onto the device. Check out this set of instructions here.
EDIT6: I have updated to 4.2.2 on my Nexus 10 and can confirm the new modules work.
You must setup the adbkey or you will get a "device: offline" message. By default adb when adb first runs it tries to create the keys in the $HOME dir which is /data/.android, but the data directory isn't accessible by the 'shell' user.
I got it working simply by setting the HOME variable to /sdcard and restarting the adb server in the script then Android popped up a query (I have update the script above).
IMPORTANT: The Android Media scanner recursively scans folders for media to add the the database so it shows up in programs like Google Music. On large shares this can be a long process and use heaps of battery life. To prevent this add a blank file with the name ".nomedia" to the root of your mount points (or each individual share if you aren't used 1 folder for all your mounts). This will stop music showing up in programs though.
If you find that the device stops responding (the launcher might work but apps fail to load) or you get reboots (often after the previous bug) this is probably due to a bad wifi connection.
Is it posible to make a CWM flash file?
Great
This is great progress, do you know if there is some way I can use the same to mount my usb OTG with ADB shell so that I can read/write to my pen drives from my android apps/file managers?
I have tried using the busybox mount but that didn't work, do I need the modified mount or will none of this help anyway?
alias_neo said:
This is great progress, do you know if there is some way I can use the same to mount my usb OTG with ADB shell so that I can read/write to my pen drives from my android apps/file managers?
I have tried using the busybox mount but that didn't work, do I need the modified mount or will none of this help anyway?
Click to expand...
Click to collapse
Code:
busybox mount -t FSTYPE /dev/block/sda1 MOUNT_LOCATION
Example:
Code:
busybox mount -t vfat /dev/block/sda1 /storage/sdcard0/usbotg
craigacgomez said:
Code:
busybox mount -t FSTYPE /dev/block/sda1 MOUNT_LOCATION
Example:
Code:
busybox mount -t vfat /dev/block/sda1 /storage/sdcard0/usbotg
Click to expand...
Click to collapse
How is this different to what I'm doing already? Mounting this way doesn't work, only the process that mounted it can see the files.
Although I don't have nexus 10, I am having the similar mounting issue on my nexus 7 until I saw this post.
Advise about "adb shell" really helps me resolve the multiuser issue.
Thanks for sharing.
Any chance you could post the nls-utf8.ko for utf8 support?
Thanks!
H3g3m0n said:
1) Unlock bootloader (adb oem unlock)
Click to expand...
Click to collapse
Isn't it fastboot that unlocks the bootloader, and not adb? (unless adb can do it too; I've only heard of fastboot though)
momulah said:
Is it posible to make a CWM flash file?
Click to expand...
Click to collapse
Not a high priority right now as currently you need to do the manual adb shell stuff by hand to get things mounted, a little extra setup work isn't a huge difference.
alias_neo said:
How is this different to what I'm doing already? Mounting this way doesn't work, only the process that mounted it can see the files.
Click to expand...
Click to collapse
Are you mounting in a 'adb shell' or locally in something like terminal emulator? My OTG cable won't be here for a while so I can't really test myself.
weasal said:
Any chance you could post the nls-utf8.ko for utf8 support?
Thanks!
Click to expand...
Click to collapse
Posted, haven't tested it but it seemed to insmod fine.
espionage724 said:
Isn't it fastboot that unlocks the bootloader, and not adb? (unless adb can do it too; I've only heard of fastboot though)
Click to expand...
Click to collapse
Yeh typoed, i'll fix that now.
Currently I'm thinking of ways to hack around the 'adb shell' requirement, as a basic hackish fix would be to make a program that turns on adb wireless, connects to the local device and issues a command. Of course possibly there is a 'proper' way to do mounting. Another lazy way for those with their shares on a Linux system would be a script issue commands to the server via a ssh, getting it to log back into the phone and mount stuff over adb wireless.
alias_neo said:
How is this different to what I'm doing already? Mounting this way doesn't work, only the process that mounted it can see the files.
Click to expand...
Click to collapse
I've been working on getting OTG support natively in my AOSP based custom ROM and I have had some success... check out my ROM for details
H3g3m0n said:
Currently I'm thinking of ways to hack around the 'adb shell' requirement, as a basic hackish fix would be to make a program that turns on adb wireless, connects to the local device and issues a command. Of course possibly there is a 'proper' way to do mounting. Another lazy way for those with their shares on a Linux system would be a script issue commands to the server via a ssh, getting it to log back into the phone and mount stuff over adb wireless.
Click to expand...
Click to collapse
Just wanted to thank H3g3m0n as I was able to successfully mount over adb. Also came up with a workaround to bypass connecting to a PC, grabbed the arm fastboot binary from this thread and installed it on my nexus 7. Used it to connect wireless adb on the 10 and ran the mount commands on the 7.
H3g3m0n said:
Posted, haven't tested it but it seemed to insmod fine.
Click to expand...
Click to collapse
Thanks, I'll give it a try!
You might find my posts #156 and #162 at http://forum.xda-developers.com/showthread.php?t=1781411&page=17 helpful.
Sorry for the noob ? ...
What are the KO's do?
What is the practical use of then.
Sorry I did a little research on then but I could not find an answer in layman terms
Thank you for allowing me to learn.
Sent from my toroplus using xda premium
spdwiz18 said:
Sorry for the noob ? ...
What are the KO's do?
What is the practical use of then.
Sorry I did a little research on then but I could not find an answer in layman terms
Thank you for allowing me to learn.
Sent from my toroplus using xda premium
Click to expand...
Click to collapse
http://en.wikipedia.org/wiki/Loadable_kernel_module
craigacgomez said:
http://en.wikipedia.org/wiki/Loadable_kernel_module
Click to expand...
Click to collapse
That helps allot.... Now i have an understanding of ko's in general. But what specificly do the modules this thread refers to do and the practical use of then. Thanks foot the help.
Sent from my toroplus using xda premium
spdwiz18 said:
That helps allot.... Now i have an understanding of ko's in general. But what specificly do the modules this thread refers to do and the practical use of then. Thanks foot the help.
Sent from my toroplus using xda premium
Click to expand...
Click to collapse
These modules are needed to enable support for CIFS (Windows share) mounts...
spdwiz18 said:
That helps allot.... Now i have an understanding of ko's in general. But what specificly do the modules this thread refers to do and the practical use of then. Thanks foot the help.
Sent from my toroplus using xda premium
Click to expand...
Click to collapse
Basically you can setup a shared folder from a remote computer. It allows you to have files on another system accessible as if it was part of the internal storage in the device.
Just found out that Android ships with the adb binary on the device itself (after crosscompiling it myself :/, oh well the experience was useful).
It should be possible to setup a script to start the adb server, connect to the localhost and execute the mount without too much difficulty.
Ok, added a script and instructions to the front page for simple on tablet mounting.

[Q] Why can't I mount 'System' on Nexus 7 (2013) ?

Hi,
A few days ago, I did unlock and root my N7 (2013) using "Nexus Root Toolkit (v.1.6.8)" by WugFresh. I followed the instructions to the letter and everything went OK, it seemed. My N7 (JSS15J) is unlocked and I have root access, as confirmed by "Titanium Backup" and "Root Checker Pro" app.
However, my N7 cannot mount "System" - which is why I cannot delete any system app bloatware (also confirmed by "System App Remover" & Root Checker Pro app). When rooting my N7 (2012) and my SGS3, everything worked just perfectly and I never had these kind of issues...
I did factory-reset a number of times, went through the unlock/root process again, rooted again via UPDATE-SuperSU-v1.51.zip etc etc. - no dice. TWRP v2.6.0.0 is installed and working. I also installed & updated BusyBox, and I wiped of Dalvik - but still no root access to "System", or "mount".
As I just found out, "Root Checker Pro" actually explains why I can't mount "System" and/or don't have root access... I just don't know what to do about it:
Congratulations! You have root access!
Super User Application Status:
SuperSU application - version 1.51 - is installed!
System File Properties for Root Access:
Standard Location
Check Command: ls -l /system/bin/su:
Result: /system/bin/su: No such file or directory
Analysis: File /system/bin/su does not exist.
Standard Location
Check Command: ls -l /system/xbin/su:
Result: -rwsr-sr-x root root 112164 2008-08-01 07:00 su
Analysis: Setuid attribute is present and root user ownership is present. Root access is correctly configured for this file! Executing this file can grant root access!
Alternative Location
Check Command: ls -l /sbin/su:
Result: /sbin/su: Permission denied
Analysis: File system permissions restricted and denied access.
Alternative Location
Check Command: ls -l /system/xbin/sudo:
Result: /system/xbin/sudo: No such file or directory
Analysis: File /system/xbin/sudo does not exist.
Root User ID and Group ID Status:
Root user id:
uid=0(root)
Root group id:
gid=0(root)
System Environment PATH: /sbin /vendor/bin /system/sbin /system/bin /system/xbin
ADB Shell Default User:
ADB shell setting for standard access, stored in default.prop, is configured as: shell (non root) user - ro.secure=1
Results provided on your Nexus 7 device by Root Checker Pro version 1.3.4 from joeykrim in the Android Market - http://goo.gl/NcnHn
What did I miss?
Can someone please help me to install whatever is needed to gain root access to "System"? "System App Remover" app shows that "System" is not mounted but downloading a separate "mount app" did not do the trick either...
Thanks for your help & suggestions, guys!
System is already mounted or you wouldn't be running android.
What you probably want to do is "remount"
mount -o remount,rw /system /system
But if all you want is to remove apps, perhaps it is easier if you just use Titanium to freeze them first and once you are sure you don't need them you can delete them, but I would just leave them frozen.
sfhub said:
System is already mounted or you wouldn't be running android.
What you probably want to do is "remount"
mount -o remount,rw /system /system
But if all you want is to remove apps, perhaps it is easier if you just use Titanium to freeze them first and once you are sure you don't need them you can delete them, but I would just leave them frozen.
Click to expand...
Click to collapse
Thanks, sfhub... I'll give that a try!
Doesn't look good, I'm afraid:
C:\platform-tools>mount -o remount,rw /system /system
'mount' is not recognized as an internal or external command,
operable program or batch file.
Click to expand...
Click to collapse
Any further suggestions, please?
androidarmin said:
Doesn't look good, I'm afraid:
Click to expand...
Click to collapse
Seems like I tried in the wrong place... I'll give it another try; sorry
Well... downloaded a Terminal Emulator from Google Play..
But now I'm getting a "mount: Operation not permitted" error...
Googled a ton and found a lot of good advice... and even figured things out using ADB (hint: adb shell) - but nothing worked in the end.
Seems like my "SU" may be the culprit, but I'll figure things out when I have more time... meaning, on the weekend. Probably go back to stock and then start over. Seems to be the simplest way right now.
Thanks so far, guys!
androidarmin said:
Well... downloaded a Terminal Emulator from Google Play..
But now I'm getting a "mount: Operation not permitted" error...
Click to expand...
Click to collapse
In adb, you need to type su first to give yourself root privileges before you can mount /system
You need to mount system as read/write in order to remove apps from it.
Sent from my Nexus 7 (2013)
Thanks, sfhub & Muikkuman... I know/I did. Still doesn't work.
Sent from my GT-I9300 using Tapatalk 4
androidarmin said:
Thanks, sfhub & Muikkuman... I know/I did. Still doesn't work.
Click to expand...
Click to collapse
what happens if you do in a command prompt in your adb directory
adb shell
su
Yes this seem strange.
Sent from my Nexus 7 (2013)
My suggestion would be to update TWRP, back-up important data, format data in recovery, look for decent rom, flash rom/gapps/latest supersu.
Then go to 'advanced' in recovery and fix permissions. Reboot recovery and tick 'mount' 'system', respectively install root file explorer of your liking.
No quick solution but should do the trick..
My suggestion is DO NOT delete anything, period. Nurse disable from settings or use pm disable.
Deleting stuff is completely pointless and WILL cause you problems in the future.
androidarmin said:
Thanks, sfhub & Muikkuman... I know/I did. Still doesn't work.
Sent from my GT-I9300 using Tapatalk 4
Click to expand...
Click to collapse
Dont know if you got this sorted. i was having the same problem with my son's Nexus 7 and came across this tutorial for Total Commander
http://www.androidpolice.com/2011/0...ns-remount-rw-in-total-commander-for-android/
Great little short cut to get the job done and can now get Total Commander free on Google Play.

[Q] SU Binary error upon Execution: No root access

Info: For those of you who need more info on my SU Binary (/system/bin/su), it's NOT out of date. Its the newest version for galaxy s4 m919.
My problem: /system/bin/su (SU binary files) will not execute.
Why?...: Because, access to execute binary files on system is denied (I don't have root access/permission). EEEK.
here's the Logs from root checker Pro: (In no particular order)-
SuperSU application - is NOT installed.
SuperUser - Installed!
System File Properties for Root Access:
Standard Location
Check Command: ls -l /system/bin/su:
Result: -rwsr-sr-x root root 380532 2008-08-01 08:00 su
Analysis: Setuid attribute present and root user ownership present. Root access is correctly configured for this file! Executing this file can grant root access!
Standard Location
Check Command: ls -l /system/xbin/su:
Result: lrwxrwxrwx root root 2013-10-11 02:57 su -> /system/bin/su
Analysis: File: su is a symbolic link pointing to another file: /system/bin/su
Alternative Location
Check Command: ls -l /sbin/su:
Result: /sbin/su: Permission denied
Analysis: File system permissions restricted and denied access.
Alternative Location
Check Command: ls -l /system/xbin
Root User ID and Group ID Status:
SU binary not found or not operating properly.
System Environment PATH: /sbin /vendor/bin /system/sbin /system/bin /system/xbin
more details
Extra info that I didn't include: I originally WAS rooted, running stock Samsung ROM (factory ROM) and I rooted using ODIN. So after rooting, I installed CyanogenMod 10.1.3.1, which does not come with root installed by default.
*SIGH* So... I want to know how to root CyanogenMod... So supposedly following the instructions by Root checker pro Logs,
I need to execute /system/bin/su. (Which won't work, unless a magical "S-Off" appears so I can execute it. But, then executing would be pointless because I would be already rooted with S-Off.
Help please, anyone? Could I root cyanogenmod from the computer terminal? Is there a way to override system permissions and execute su binary?
As per all your other post. Have you enable Root in Developer Options? CM ROM now has root disable by default.
Root options...
Root options in CyanogenMod Developer Options are not displayed in my settings...
What exactly does the toggle panel say for it? I can take a screenie of my settings..?
sorry for my ignorance with CyanogenMod... The last time I flashed CyanogenMod
was with CyanogenMod version 5, lol. And that was 3 years ago (I had an HTC Inspire 4G)
System Settings, About Phone, tap on the build number repeatedly until it enables Developer Options. Press back, tap Developer Options. Change Root Access to 'Allow ADB & Apps.'
Let's hope this is the last thread you start for awhile. Search for these answers, they have been answered already ;]
In reply...
dynospectrum said:
System Settings, About Phone, tap on the build number repeatedly until it enables Developer Options. Press back, tap Developer Options. Change Root Access to 'Allow ADB & Apps.'
Let's hope this is the last thread you start for awhile. Search for these answers, they have been answered already ;]
Click to expand...
Click to collapse
Well then. That was not so loving and friendly. Lol. And I have done so, btw.. My developer options are enabled, but the root access panel is not
In there. infact, there was a new section called "SuperUser", and I had set the root access panel to "Allow ADB and Apps" like you said.
But in return, no cigar. No root rights, even still. :/
Same here I'm using beanstalk 4.3 and most of the root apps work but some don't for example gamekiller, the few times I installed it it denied it before the prompt window popped out then after a few tries it finally granted it but before I pressed grant it said WARNING GAMEKILLER HAS A COMMAND (not sure about that part) android.permission.ACCESS_SUPERUSER not declared so I went into super user settings and I checked that option so I tried searching a value number and as soon as I press search it doesn't do anything then I press help and it tells me it needs root access which has been give
Sent from my SGH-M919 using XDA Premium 4 mobile app
Download and flash in recovery: http://download.chainfire.eu/351/SuperSU/UPDATE-SuperSU-v1.65.zip
Yay.
I've flashed that in CM10 ROM several times, and no root. But no worries, I'm running an awesome, fast, great battery life AOSP Based ROM (Completely AOSP, actually) and it comes rooted
The ROM is actually solely based off of googles open source code from android 4.3, with a few of the major components hand-picked from other Dev sources. The ROM is called-
Google Edition s4
For all who wish to download this as well as I did, here's the link to this epic ROM:
http://forum.xda-developers.com/showthread.php?t=2341026
Thanks
Thank you, this method worked for me. So much misinformation out there, I tried like 20 other bogus remedies before this. I could hug you.
same problem
I rooted my phone before,then I unroot it. But now when I am trying to root it again I'm facing same problem with superuser, it's saying that su binary is outdated and its not updating also, and I don't have root permission so that I can fix it with several methods which I found by google it.

Tasker/Secure Settings on Systemless Root

So i'm trying to create a profile in tasker to enable/disable airplane whenever i'm connected to Wifi and it seems SecureSettings isn't allowing root actions even though it has root privileges. Anyone know an app that works with tasker that can allow me to enable/disable airplane mode?
Thanks!
metpage said:
So i'm trying to create a profile in tasker to enable/disable airplane whenever i'm connected to Wifi and it seems SecureSettings isn't allowing root actions even though it has root privileges. Anyone know an app that works with tasker that can allow me to enable/disable airplane mode?
Thanks!
Click to expand...
Click to collapse
Is there any particular reason you are using systemless root?
Sent from my Nexus 5X using Tapatalk
Mainly for Android Pay to work but I'm not married to systemless root if system root makes this work. However I may have found a workaround using Locale instead.
Sent from my Nexus 5X using Tapatalk
In either a terminal on your phone, or via adb shell from the computer, enter these commands:
Code:
mount -o remount,rw /system
touch /sbin/su /system/bin/su /system/xbin/su
mount -o remount,ro /system
I can't remember if you need to reboot or not, but might as well, just in case. Afterward, run your task and allow Secure Settings root access.
After doing this, Tasker and Secure Settings works for me. If this doesn't fix your problem, I don't know.
Thanks I'll give this a shot if Locale doesn't work
Sent from my Nexus 5X using Tapatalk
lightningdude said:
In either a terminal on your phone, or via adb shell from the computer, enter these commands:
Code:
mount -o remount,rw /system
touch /sbin/su /system/bin/su /system/xbin/su
mount -o remount,ro /system
I can't remember if you need to reboot or not, but might as well, just in case. Afterward, run your task and allow Secure Settings root access.
After doing this, Tasker and Secure Settings works for me. If this doesn't fix your problem, I don't know.
Click to expand...
Click to collapse
I have the same problem, running CF-Autoroot on my S7 edge. I would like to try your trick but am not sure how to exactly . Could you please explain a little bit more in detail how this is done?
EDIT: nevermind, i solved it my self using THIS method.
Thanks in advance.
Works for Secure settings, but it's broken Titanium backup
When I try to implement this in adb I get the following:
mount: '/dev/block/platform/soc.0/f9824900.sdhci/by-name/system'->'/system': Device or resource busy
Can anyone help? Would greatly appreciate it. Thanks!
facted said:
When I try to implement this in adb I get the following:
mount: '/dev/block/platform/soc.0/f9824900.sdhci/by-name/system'->'/system': Device or resource busy
Can anyone help? Would greatly appreciate it. Thanks!
Click to expand...
Click to collapse
Try using this command instead:
mount -o rw,remount /system
It worked for me
PiousInquisitor said:
Is there any particular reason you are using systemless root?
Sent from my Nexus 5X using Tapatalk
Click to expand...
Click to collapse
is there system root for 7.0 or is this thread about 6.0.1?
niklus101 said:
is there system root for 7.0 or is this thread about 6.0.1?
Click to expand...
Click to collapse
There are unofficial versions in in the super su section here.
LSI said:
Works for Secure settings, but it's broken Titanium backup
Click to expand...
Click to collapse
Yeh, unfortunately, it does, same with AdAway.
Does it have to do with Android N or is it about the fact that touch /sbun/su fails due to sbin being read only?
If someone knows a solution, that would be great.
LSI said:
Works for Secure settings, but it's broken Titanium backup
Click to expand...
Click to collapse
I have the same problem with this too. It would be great to have a solution, or at least knowing how to reverse it would be great.
lightningdude said:
In either a terminal on your phone, or via adb shell from the computer, enter these commands:
Code:
mount -o remount,rw /system
touch /sbin/su /system/bin/su /system/xbin/su
mount -o remount,ro /system
I can't remember if you need to reboot or not, but might as well, just in case. Afterward, run your task and allow Secure Settings root access.
After doing this, Tasker and Secure Settings works for me. If this doesn't fix your problem, I don't know.
Click to expand...
Click to collapse
Do you hit enter at each line?
I'm doing this exact thing with Tasker and Magisk. I just had to add a quick edit to my build.prop, and then Tasker could recognize root with Magisk, and it worked fine.
Fit some reason I'm getting this error when dropping the commands
That's because it's mount -o not -0.
I just got secure settings and tried these commands in terminal. However they don't work. I get device or resource busy.
I'm on PureNexus 7.1.1 root via supersu on my Nexus 5x IF that matters in any way.
Edit: never mind. Solved it by replacing 0 with o. *Facepalm*
I've encountered the same problem in Android 7.1.2 and the above solution didn't work out for me. Secure Settings system+ is unavailable.
Any other solutions?
The first command
mount -o remount,rw /system
gave me the following result:
mount: '/dev/block/platform/msm_sdcc.1/by-name/system' not user mountable in fstab
1|jfltexx:/ $
It seems like an error.
akran said:
I've encountered the same problem in Android 7.1.2 and the above solution didn't work out for me. Secure Settings system+ is unavailable.
Any other solutions?
The first command
mount -o remount,rw /system
gave me the following result:
mount: '/dev/block/platform/msm_sdcc.1/by-name/system' not user mountable in fstab
1|jfltexx:/ $
It seems like an error.
Click to expand...
Click to collapse
Try this:
Code:
mount -o rw,remount /system
touch /sbin/su /system/bin/su /system/xbin/su
mount -o ro,remount /system
I'll share how I fixed this problem, which might be a LOT easier for some people.
Install a file manager that has root access (ie Root Explorer).
Navigate to /system/bin
Click whatever button to mount /system as rw.
Create a directory (or file) and call it su
Reboot phone
Open Secure settings and enable root.
At this point (and with above solutions, Android Pay is broken. If you want it back.
Open file manager again.
navigate to /system/bin
mount rw
delete the su folder (or file) you created earlier.
reboot.
Secure Settings only checks for su file the first time. Once it's been granted access, it no longer looks for su, it just tells the system it needs root access. So it will work the way its supposed to, even though it no longer can find the su file in expected location.
Also, for those that don't know, "touch" creates a file. So if you want to pass SafetyNet still, go back and delete the 3 files created from the touch command. And note that you only need to do 1 of them, not all 3, for Secure Settings to work.

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