Hello All,
I have compiled kernel for redmi 1s and using unpack-repack tool for creating new boot.img from zimage but after flashing new boot.img my phone gets rebooting
I have tried adb shell cat /proc/version and found kernel is updated but phone gets rebooting
Please help me
Related
Ok so I customized a boot.img (init.rc file) and repacked it using mkbootfs and mkbootimg. For the life of me, I can't get these boot imgs to boot. Any ideas why? The same exact stuff worked fine on my Hero.
chuckhriczko said:
Ok so I customized a boot.img (init.rc file) and repacked it using mkbootfs and mkbootimg. For the life of me, I can't get these boot imgs to boot. Any ideas why? The same exact stuff worked fine on my Hero.
Click to expand...
Click to collapse
well some more detail would be really helpful in troubleshooting. hopefully you're able to get something ... im still new to the style HTC uses for their kernels.
is the kernel booting and not loading the init.rc properly (possible adb output?) or is the kernel not even loading properly? how far along with the boot screens do you get?
are you using --cmdline and --base?
Good call. I should probably post the commands I used. lol
Ok so I did change my init.rc but for testing purposes I just unpacked the stock boot.img and immediately repacked it. the commands are as follows:
Code:
$ mkbootfs boot.img-ramdisk | gzip > ramdisk-boot
$ mkbootimg --kernel boot.img-kernel --ramdisk ramdisk-boot --cmdline "no_console_suspend=1 console=null" -o newBoot.img --base 0x19200000
Then generates a boot.img file successfully but it still does not boot. Any ideas?
Edit: And of course I renamed newBoot.img to boot.img and included it in an update.zip which all flashed with no errors. Just never gets past the first HTC Evo 4G boot screen
chuckhriczko said:
Edit: And of course I renamed newBoot.img to boot.img and included it in an update.zip which all flashed with no errors.
Click to expand...
Click to collapse
im still beginning in building boot.img files for HTC android phones. my experience is with building a straight zImage kernel file with an initramfs compiled into the zImage kernel file for a Samsung android phone.
hopefully somebody can comment with some better insight, on mkbootfs, etc as I'm also very curious what the best command is for our EVO.
my only comment is a side note to the flashing process and hopefully this method will speed up testing for you and everybody else. i wrote the commands ROM and recovery/normal android mode independent. this is how i would quickly test kernels on my samsung android based phone, assuming it works the same on HTC?
adb push boot.img /sdcard/boot.img
adb push flash_image /sdcard/flash_image (only have to do once)
cat /sdcard/flash_image > /data/flash_image (only have to do once)
chmod 755 /data/flash_image (only have to do once)
/data/flash_image boot /sdcard/boot.img
reboot the phone to test ... hopefully that simplifies the kernel testing process!
thanks for posting up all your detail, its insightful and helpful!
--base 0x20000000 <~ change to
btw moving thread to q&a
toastcfh said:
--base 0x20000000 <~ change to
btw moving thread to q&a
Click to expand...
Click to collapse
Worked perfectly. Thanks Toast.
I'm trying to make insecure boot.img for U9200 for my firmware version (V100R001C185B104). Unpacking original boot.img and ramdisk goes OK. After making changes to defult.prop I do the following:
mkbootfs ./ramdisk | gzip > ramdisk-new.gz
mkbootimg --kernel boot.img-kernel --ramdisk ramdisk-new.gz --base 0x80000000 --cmdline "console=ttyGS2,115200n8 mem=1G vmalloc=768M omap_wdt.timer_margin=30 mmcparts=mmcblk015(splash)" --board omap4 -o tools/flash/boot.img
New boot.img is successfuly created but doesn't boot (fastboot boot boot.img). What am I doing wrong?
I've got parameters using bootimg.exe and I think they are OK. There's nothing about them on the net
EDIT:
I made it using other mkbootimg.exe. This one accept more input parameters. This time I use bootimg.exe for upacking bootimg and unpacking and packing ramdisk. I did:
>bootimg.exe --unpack-bootimg
>bootimg.exe --unpack-ramdisk
Do changes at default.prop.
>bootimg.exe --repack-ramdisk
>mkdir flash\
>mkbootimg --kernel kernel --ramdisk ramdisk.cpio.gz --cmdline "console=ttyGS2,115200n8 mem=1G vmalloc=768M omap_wdt.timer_margin=30 mmcparts=mmcblk015(splash)" --board omap4 --base 0x80000000 --pagesize 2048 -o flash\boot.img
Reboot to bootloader:
>adb reboot bootloader
Test if you have good drivers installed:
>fastboot devices
If OK, test your new boot.img without flashing it:
>fastboot boot boot.img
If device boots and you want to have this image permanant flash it with:
>fastboot flash boot.img.
I've attached the tools that worked for me. I'm coplete noob in Android cooking, this is my first steps. There are lot about editing boot.img on the internet but nothing about my device so I decided to start a new topic if someone is also interested in.
also cracking my U9500. Have you done with your problems?
i use bootimg.exe to unpack & repack the img file, using same parameters and nothing modified to the extracted files,
but,
the new & old boot.img(should be same) are not same using binary compare.
according to a file that describes how boot.img is structured, i found that some key parameters are different in these two img file.
I don't know why ....
so if you have succeeded, PLZ tell me ..
contact me qq 6777711 if you're Chinese. or mail me: 6777711 AT qq.com
Nice one. I'll take a look at this aswell.
Technically i have to give credit to scott crossler
www.scottsroms.com
for showing me the method
and then i came upon turges
faq
Thanks Turge and Scott and whomever created these blobpacktools
but since i keep getting pms
and im sure you do to
scott
Here are the steps for repacking the boot.img. Some involve running the commands via cygwin, others involve running them via the Windows Command Prompt.
The instructions for installing cygwin, extracting and repacking the boot.img were found here: http://www.freeyourandroid.com/guide...ot-img-windows
Once you have setup cygwin, extract the attached files in a folder under your "home" folder in cygwin.
Also unzip blob tools into the same folder as your boot.blob
1.
Code:
copy boot.blob to the same folder and run the following via
the Windows Command Prompt to extract the boot.img from the boot.blob:
BlobUnpack.exe boot.blob
ren boot.blob.LNX boot.img
which will create boot.img
2.
Code:
From the cygwin bash terminal window,
switch to the same folder and run the following
to extract the ramdisk from the boot.img:
./extractboot boot.img
You now have an out/ramdisk folder
that contains the files you want to edit.
3.
Code:
Once done, repack the ramdisk and kernel into boot_new.img
with the following command (via cygwin once again):
./packboot
4.
Code:
then from the Command Prompt repack boot_new.img
into boot2.blob using the following:
blobpack -s boot2.blob LNX boot_new.img
5.
Code:
You can now flash the boot.blob to the staging
partition via a command in updater-script:
Code:
package_extract_file("/boot.blob", "/dev/block/mmcblk0p4");
or by using adb while in recovery/android:
Code:
dd if=/sdcard/boot2.blob of=/dev/block/mmcblk0p4
Lastly the rundown is like this
if you want to take a ota blob
and extract the contents for a raw base
and a raw kernel
1
take the ota and extract the blob file and place
in your folder with blobtools
2. then run
Code:
blobunpack.exe blob
Which now creates
Blob.APP =System.img (can be renamed system.img and unyaffed in the kitchen)or straight cygwin
Blob.sos=Recovery Img
Blob.Ebt=Bootloader information
Blob.Lnx=kernel (can also just be renamed boot.img and unyaffed in kitchen)
Blob.pt=Partition info
so to repack lets say your custom remade image
and your custom kernel
and a recovery of your choice
run
Code:
blobpack.exe -s blob lnx boot.img sos twrp.blob app system.img
then simply take the blob replace in the ota file
and flash in recovery
and it should flash a rom packed as a blob
Hi!
...also you can flash the new boot.blob via fastboot mode
>fastboot-i 0x0B05 flash boot boot.blob
:good:
Call me stupid, but what does repacking the boot.img do? I never pm'ed you, but what would we gain from this. a lil lost
unpacking a boot.img allows you to take a stock already built kernel
and make specific changes to the ramdisk
more specifically
default.prop
can make kernel insecure
debuggable
bootanimation enabled
blah blah blah
and init.rc
but also
cardhu
and goldfish.rc
and init.trace
and init.usb
then repacked and good to flash
seanzscreams said:
Lastly the rundown is like this
if you want to take a ota blob
and extract the contents for a raw base
and a raw kernel
1
take the ota and extract the blob file and place
in your folder with blobtools
2. then run
Code:
blobunpack.exe blob
Which now creates
Blob.APP =System.img (can be renamed system.img and unyaffed in the kitchen)or straight cygwin
Blob.sos=Recovery Img
Blob.Ebt=Bootloader information
Blob.Lnx=kernel (can also just be renamed boot.img and unyaffed in kitchen)
Blob.pt=Partition info
so to repack lets say your custom remade image
and your custom kernel
and a recovery of your choice
run
Code:
blobpack.exe -s blob lnx boot.img sos twrp.blob app system.img
then simply take the blob replace in the ota file
and flash in recovery
and it should flash a rom packed as a blob
Click to expand...
Click to collapse
Hi!
For a linux (Ubuntu) machine you can easily unpack blob.APP
> sudo mkdir mnt
> sudo mount -o loop blob.APP mnt
- now in your mnt directory , you will have /system ! :good:
Hi,
My TF300tl can't unlock bootloader. so can I use this way to pack custom ROM ( cm11, liplop...) as official ROM to flash for my tablet ?
konnichiwa said:
Hi,
My TF300tl can't unlock bootloader. so can I use this way to pack custom ROM ( cm11, liplop...) as official ROM to flash for my tablet ?
Click to expand...
Click to collapse
I wouldn't think so, as the ROM would have to be signed to be official
Hi all,
I'm trying to create my own system.img for the Nexus 7 2013 Wifi from the stock system.img from https://developers.google.com/android/nexus/images 5.0.2 LRX22G. Basically I did it the common way using the android repack tools http://forum.xda-developers.com/showthread.php?t=2600364 and I'm also using branch android-5.0.2_r1 from the git repo.
I'm flashing with the simple:
Code:
fastboot flash system mysystem.img
The problem I'm having is, even with an unmodified tree from system.img, the image I created always get the device stuck at the boot Google logo screen. If I flash the original system.img, then it is fine, so I think my flashing part is working.
The command line I used to create the image is:
Code:
./mkuser.img.sh -s /path/to/loop_mounted_system/ mysystem.img ext4 system 880803840
which will run:
Code:
make_ext4fs -s -T -1 -l 880803840 -a system mysystem.img /path/to/loop_mounted_system/
Has anyone here actually managed to create a working system.img?
Any suggestions would be much appreciated, thanks!
UPDATE: Using ext2simg instead of mkuserimg.sh/make_ext4fs fixes the problem!
SOLVED: I was using the G980F boot.img instead of G985F image. THANKS everyone
The device won't reboot if I unpack and repack the boot.img on S20
Did someone else here succeed in flashing a new boot.img ? THANKS
Code:
[email protected]:~/GS20_kernel_build$ unpackbootimg -i boot.img
BOARD_KERNEL_CMDLINE androidboot.hardware=exynos990
BOARD_KERNEL_BASE 10000000
BOARD_PAGE_SIZE 2048
[email protected]:~/GS20_kernel_build$ mkbootimg --kernel boot.img-zImage --ramdisk boot.img-ramdisk.gz -o boot_repacked.img
[email protected]:~/GS20_kernel_build$ heimdall flash --BOOT ./boot_repacked.img
[...]
Downloading device's PIT file...
PIT file download successful.
Uploading BOOT
100%
BOOT upload successful
Ending session...
Rebooting device...
modem__ said:
The device won't reboot if I unpack and repack the boot.img on S20
Did someone else here succeed in flashing a new boot.img ? THANKS
Code:
[email protected]:~/GS20_kernel_build$ unpackbootimg -i boot.img
BOARD_KERNEL_CMDLINE androidboot.hardware=exynos990
BOARD_KERNEL_BASE 10000000
BOARD_PAGE_SIZE 2048
[email protected]:~/GS20_kernel_build$ mkbootimg --kernel boot.img-zImage --ramdisk boot.img-ramdisk.gz -o boot_repacked.img
[email protected]:~/GS20_kernel_build$ heimdall flash --BOOT ./boot_repacked.img
[...]
Downloading device's PIT file...
PIT file download successful.
Uploading BOOT
100%
BOOT upload successful
Ending session...
Rebooting device...
Click to expand...
Click to collapse
You need to make a tar file containing the img and flash it with odin. You need a Windows computer for that. Linux won't do sadly
If you don't feel like making a flashable zip file you can just use dd to install it from within TWRP (via terminal on console or ADB) if you have that installed:
dd if=boot_repacked.img of=/dev/block/by-name/boot
No Windows/Odin required.
sjevtic said:
If you don't feel like making a flashable zip file you can just use dd to install it from within TWRP (via terminal on console or ADB) if you have that installed:
dd if=boot_repacked.img of=/dev/block/by-name/boot
No Windows/Odin required.
Click to expand...
Click to collapse
dd always scares me lol.
You sure this works with S20? Even Fastboot fllashing doesn't work so I doubt this will
JanBoyGamer23 said:
dd always scares me lol.
You sure this works with S20? Even Fastboot fllashing doesn't work so I doubt this will
Click to expand...
Click to collapse
My phone wouldn't boot last night after I tried flashing my own boot image and this was how I put the previous one back. It booted right up.