[Q] 32 bit system for compiling kernel? - Nexus S Q&A, Help & Troubleshooting

Can anyone confirm if it is possible to compile ICS kernels using 32-bit Linux? I am currently on 32-bit 10.04 Ubuntu LTS, and do not have access to a 64-bit system. I think I read somewhere that 64 bit is required for ROM building, but I haven't been able to find any related information for kernels (which are apparently simpler/easy to build).
Any information would be appreciated.

I think 64 bit is a necessity
For kernel benchmarks and more, see here: http://goo.gl/mpeHI

Well I was able to successfully compile my zImage and wireless module without errors. When I flash my update.zip though, it gets stuck on the Google splash screen. But I think that's a separate problem..

Related

Linux on TF300?

Hi Guys,
I am looking for linux working on TF300T, is there anyone who has anything working? I am planning to start with linux for TF300T, I want to know if anyone has tsarted, how do I collaborate and not reinvent the wheel. I have questions regarding what bootloader to use, lilo / grub / u-boot as Nvidia has a ubuntu distribution for its chip, which uses U-boot. Lot of questions can any dev please reply, so I can think of a place to start.
Thanks
Sent from my ASUS Transformer Pad TF300T using xda premium
So far I'm quite satisfied with my android linux device ( with some chroot debian thrown in for good measure).
I'm wondering about this as well. I've got some experience with linux (servers) but not a clue how the android boot structure works.
I have found this though: http://eeepadhacks.net/transformer-hacks/how-to-install-native-ubuntu-on-eeepad-transformer/
Not to spam, but does anybody have *NIX running on the TF300? I'm very interested since Android is based on the Linux kernel, so I would think that there is some form of *NIX running on this device, since I'm hoping that there is so I could actually use this as a "laptop" for my school work.
I am fairly sure that Android is Linux. However what people are missing is the GNU environment (and tools) that the majority of the Linux distributions have. You can see that Android/Linux is vastly different from GNU/Linux.
Thus, I think the question becomes something like "Is there anyone who has GNU/Linux working on the TF300T?"
There are two methods I know of to get GNU/Linux running on Android: Chroot and Dual boot.
* The chroot method runs the linux services and programs inside Android, but is available for basically most devices.
* The dual boot method works (mostly) with the original transformer (as Citruspers has mentioned)
I myself don't have a tablet yet, but I have been looking to get a TF300T (if I don't buy a TF700T - but that is for another discussion) on the basis I can dual boot Android with a GNU distribution.
Linux = kernel. Android runs a Linux kernel. Android IS Linux.
The two biggest differences between Android and "ordinary" Linux distributions are libc (called bionic in Android) and the lack of a real X server on Android (there is a Java version at https://code.google.com/p/android-xserver/ , but it's wayyyy too slow to get anything done (it's still awesome, though). It needs to be implemented in a lower level language).
/dev/void said:
Linux = kernel. Android runs a Linux kernel. Android IS Linux.
The two biggest differences between Android and "ordinary" Linux distributions are libc (called bionic in Android) and the lack of a real X server on Android (there is a Java version at https://code.google.com/p/android-xserver/ , but it's wayyyy too slow to get anything done (it's still awesome, though). It needs to be implemented in a lower level language).
Click to expand...
Click to collapse
Any chance Wayland will work any better with Android than X? I wouldn't mine tossing a *box or even WindowMaker on my tablet (assuming they play nicely with Wayland).
Edit: Yes, I realize that Wayland barely works with GNU/Linux as it is, and it probably won't be usable even on the desktop until I'm upgrading to a new tablet. I'm not expecting it anytime soon.
Extracted from http://androidroot.mobi/2012/06/17/ubuntu-on-the-transformer-prime-preview/ regarding Ubuntu on Prime 201...
It has been a while since the last post about ubuntu on the Transformer Prime. This post is going to explain a few of the new changes, and show a video preview of the system in action.
There have been a few changes since the last update:
3.1.10 Kernel -- Asus don’t update the kernel while remaining on the same android major release, so they won’t update the kernel until at least Jellybean, but we have worked really hard to bring us up to the latest kernel. This has given us the ability to use the latest Tegra ULP GeForce binary from nvidia and maintain acceleration with the latest releases.
Linux as a bootloader -- With some work to the process we have managed to get kexecboot working to give us a boot menu that will boot not only multiple kernels from eMMC, but also to allow booting from USB, SD, and MicroSD. At this point in time the guest kernel also requires two patches, one for speed (it is really slow to boot without this patch, 30sec-5minutes) and the second to copy ATAGS, this second patch is important so that the new initrd and command line get used.
Ubuntu 12.04 LTS -- The last image was 11.10 which is a little less stable. 12.04 has a new gpower applet which can read the battery levels. 12.04 also includes the mtrack driver allowing the trackpad to work. The biggest change with the new image is the use of armhf over armel.
LVM -- Turning mmcblk0p8 (/data under android) to an lvm volume group has allowed both android and ubuntu to coexist on the eMMC without needing nvflash for reformatting. This however does require a modification to the android initrd to reflect the change and for the lvm binary to be included so it can mount /data. Ubuntu natively supports booting from logical volumes.
Click to expand...
Click to collapse
I know, I know this is TF300 forum, but it seems the TF300 is more similar to the TF201 than the primitive TF101
EndlessDissent said:
Any chance Wayland will work any better with Android than X? I wouldn't mine tossing a *box or even WindowMaker on my tablet (assuming they play nicely with Wayland).
Edit: Yes, I realize that Wayland barely works with GNU/Linux as it is, and it probably won't be usable even on the desktop until I'm upgrading to a new tablet. I'm not expecting it anytime soon.
Click to expand...
Click to collapse
Good call. While we're on the desktop managers, how about KDE's entry in the mobile device space? Aren't they supposed to have a native linux tablet going to retail soon?
My chroot runs smooth but native would be fun! Hope someone get's this working.
I hope once the guys at androidroot.mobi release the installer package for Ubuntu for the Prime, it works on TF300.
I'm looking for the ubuntu on my tf300t too.
Its strange, I know Ubuntu showed off dual booting kernel for android devices like 6 months ago. You basically docked your phone and it became a full Linux desktop with unity. But haven't heard anything since, only a page on Ubuntu's site for hardware manufacturers.
http://www.ubuntu.com/devices/android
(Sorry to revive this old-ish thread, but I didn't think it was any better to start a new one and clutter up the forum)
It seems that no one gave an honest shot into loading linux NATIVELY (not via the "linux on android" project). The original poster mentioned being interested into giving it a shot -- so how things are going on your end aditya?
I am by no means an Android rom developer, hacker, or even linux hacker, but I started my first steps into it, I thought of getting things done by this method:
Instead of wiping the whole recovery partition like the guy on the TF100 did, i'd use a somewhat altered version of a recovery where I launch a recovery-like menu where the user can continue to the "real" recovery, or boot linux
(Basically, I got myself a version of the /sbin/recovery, which has its menus altered to only show "linux" or "recovery". Selecting recovery launches the real /sbin/recovery)
If the user choose to boot linux (which could be automatically selected after a timeout), that's where kexec steps in and boots the right kernel and linux pre-baked image files
I got all that covered (my pre-recovery menu is 90% working, custom kexec'd kernel w/kexec binaries packed into my recovery), but i forgot a small detail: There is no way I could load a full 1Gb Ubuntu image into memory, (in other words, what does happen to the old mount points managed by the first kernel when I load the second kernel via kexec? Gets broken, right?) So I came into realization I would need an initial ramdisk to mount my mmc so I could finally load/mount my main 1 Gb image file.
Honestly, for somebody not into hacking, I am under the impression this is getting out of hand. This could work, but I heard we could have nvflash fully working (read: re-paritioning coming our way, just like for the TF100 where there's linux natively on its own partition).
Is there anybody else trying to do such things like I do? I might also need a reality check on what i'm doing-- altough it seems the right way to me now
Linux and GNU
It's true, Linux is the OS kernel, but with the word Linux you can also mean the GNU/Linux environment with the kernel and all the applications running on top ("The gimp" or "Libre Office" for example).
Should be nice to have a GNU/Linux system running on a tablet device; I read that Canonical (Ubuntu) is working on a project for multi-core devices but I don't know about the development stage.
/dev/void said:
Linux = kernel. Android runs a Linux kernel. Android IS Linux.
The two biggest differences between Android and "ordinary" Linux distributions are libc (called bionic in Android) and the lack of a real X server on Android (there is a Java version at .... , but it's wayyyy too slow to get anything done (it's still awesome, though). It needs to be implemented in a lower level language).
Click to expand...
Click to collapse
Trying to make this work too.
I have a basic changeroot with gentoo and compiled a kernel and initrd. I wanted to try it out using fastboot (fastboot -i 0x0b05 -c real_root=/dev/sdb1 boot kernel-genkernel-arm-3.3.8-gentoo initramfs-genkernel-arm-3.3.8-gentoo) but it doesn't even try to load the kernel. I get an error 0x120000 on the screen of the TF300. I googled a bit and found out that the TF201 has the same problem, you have to flash a boot image.
How can I make a boot image using the gentoo files? I looked into abootimg but it seems it won't work. At least it won't split up the original images, so I fear it uses another format. Has anybody tried mkbootimg?
AEblefisk said:
I have a basic changeroot with gentoo and compiled a kernel and initrd. I wanted to try it out using fastboot (fastboot -i 0x0b05 -c real_root=/dev/sdb1 boot kernel-genkernel-arm-3.3.8-gentoo initramfs-genkernel-arm-3.3.8-gentoo) but it doesn't even try to load the kernel. I get an error 0x120000 on the screen of the TF300. I googled a bit and found out that the TF201 has the same problem, you have to flash a boot image.
Click to expand...
Click to collapse
I only know a part of the story here, but here's my findings so far. I never got "fastboot boot" to work on my TF300, always giving me that 0x120000 error. I am under the impression (I MAY BE WRONG) that "fastboot boot" requires a more devloper friendly device (think HTC G1, GNex, anything Google branded).
That being said, I am curious why you wrote "real_root=/dev/sdb1" as your kernel parameters
AEblefisk said:
How can I make a boot image using the gentoo files? I looked into abootimg but it seems it won't work. At least it won't split up the original images, so I fear it uses another format. Has anybody tried mkbootimg?
Click to expand...
Click to collapse
Personally I was able to look at how a recovery image was used and flashed onto a TF300. Without going into the details, I looked at how xplodwild's recovery was being made, and hacked around that recovery to use my own (basically trivial modifications from his).
To flash my image files, I am using "fastboot flash recovery" with my own recovery, which is basicaly a mkbootimg based image file like you said (you were on the right track), but wrapped around in a BLOB file format (using blobpack / blobunpack, see this xda thread).
So to answer your question, the only way I found so far to boot my custom kernels and init rootdisks is to flash it onto the device outright.
BTW: if you were to look at a pre-baked img file, (or, if you had no idea whats the file contents like), you could load the file into a hex editor (I use 'hexer' on ubuntu/debian, thats a command-line one). If you see "SIGNED-BY-BLOB", thats a blob file (a nvidia tegra and/or asus file format). If you see something else (usually starting with "ANDROID.."), thats usually something you can either mount or unpack using linux natively (most probably with "mount -o loop file /mnt/mountpoint")
EDIT: Slightly off topic, but still for AEblefisk: if you compile your own kernel, i suggest turning on activating the framebuffer tux logo option. More importantly, you could as well try and activate the framebuffer console too, however apparently "fbcon is broken on 2.6.39.4", so says Rayman. But at least, you'd get a hint that your own kernel is loaded and running if you see 4 tuxes on screen (one per core)
Thanks for pointing me in the right direction.
Now I managed to make a blob with the gentoo kernel and ramdisk. It flashes sort of OK with fastboot, sending in 2 seconds, but the write time is 0.016s and it seems nothing is written. I boot into Android when I reboot. (I'm flashing to boot, not recovery). Maybe I'm missing some offset or blocksize parameters?
bilange said:
...
That being said, I am curious why you wrote "real_root=/dev/sdb1" as your kernel parameters
...
EDIT: Slightly off topic, but still for AEblefisk: if you compile your own kernel, i suggest turning on activating the framebuffer tux logo option. More importantly, you could as well try and activate the framebuffer console too, however apparently "fbcon is broken on 2.6.39.4", so says Rayman. But at least, you'd get a hint that your own kernel is loaded and running if you see 4 tuxes on screen (one per core)
Click to expand...
Click to collapse
The real_root is for the gentoo initrd to find the real root filesystem on microSD. I have no idea if it will turn out to be mmcblk1p1, sdb1 or something completely different. I'll probably have to correct that once my initrd boots.
Yes I'm definitely trying to make the framebuffer logos work. Seeing that lineup of 4 tuxes is a goal in itself
I'm using 3.3.8 in gentoo so I hope fbcon is fixed.
AEblefisk said:
Now I managed to make a blob with the gentoo kernel and ramdisk. It flashes sort of OK with fastboot, sending in 2 seconds, but the write time is 0.016s and it seems nothing is written. I boot into Android when I reboot. (I'm flashing to boot, not recovery). Maybe I'm missing some offset or blocksize parameters?
Click to expand...
Click to collapse
I never touched boot so far to tinker around Linux booting, for the simple reason we never use the recovery partition except to flash/nandroid backup (which I rarely do), plus it gave me with Android booting if I dont press the volume button on startup. As far as development went, I think this was a win/win situation, although lilstevie (the guy who did make Ubuntu boot natively on his TF101/200) told me to "never touch recovery, flash boot instead", he was most probably talking about deploying our custom OSes to the world to use.
Now i'm kinda lost as to why the regular Android boot is being shown up. Having 0 experience with the boot partition (which i thought was similar to recovery), i can't really help you. Maybe you should get on freenode into the #asus-transformer and ask around (Don't let the numbers of nicknames scare you, this is a low activity channel, but the most knowledgables people are hanging in there. Just be sure to do your homework (aka Google etc) before asking, you should be fine )
As a sidenote, you should probably use some (most?) of the kernel parameters used in /proc/cmdline from a live Android OS. Most specifically the "tegraboot=sdmmc gpt gpt_sector=..." part. This makes sure your kernel reads the partition table at the right (unusual) location instead of reading where ever it was on a regular system (the first 512 bytes of the drive? don't quote me on this). I suppose this doesn't prevent the kernel from booting, but it will make the SSD partitions visible from your OS.
AEblefisk said:
The real_root is for the gentoo initrd to find the real root filesystem on microSD. I have no idea if it will turn out to be mmcblk1p1, sdb1 or something completely different. I'll probably have to correct that once my initrd boots.
Yes I'm definitely trying to make the framebuffer logos work. Seeing that lineup of 4 tuxes is a goal in itself
I'm using 3.3.8 in gentoo so I hope fbcon is fixed.
Click to expand...
Click to collapse
Would that be a 'vanilla' 3.3.8? I'm asking because, in case you don't know, I think you can't have much success using the regular kernel from kernel.org, and hope it will detect all the devices (specifically touch, sensors, wifi, gps(?), etc). It will maybe boot (your guess is as good as mine), but it will surely lack a few things here and there. That's why there are a ton of devices specific github kernel code base here and there: it's basically a 'stock' kernel source code, with the constructor's additions to make their various devices work, with community enhancements on top of all that. I may be wrong on the following (if there are any veterans reading this, feel free to call me a noob and point me to the right direction), but if you try to compile ASUS' kernel source code for the TF300, funnily enough everything compiles silently UNTIL it gets to the Tegra parts where it gets noisy with over 9000 warnings all along (but it compiles). That led me to believe that 1) NVidia or ASUS are lousy coders and 2) They added (most likely) OR modified a bunch of code to the stock kernel tree to make it 100% functioning on their devices.
All that wall of text only to say that I assume that the broken fbcon issue is most probably due to either ASUS/NVidia additions to the kernel code, or a bug from the 'stock' kernel code, and i'm assuming it was fixed in later versions (which lacks device's constructor modifications then again).
--
Offtopic: it seems ASUS has released the kernel source code for TF300 for their JB update! Compile all the things!! (And hope fbcon as been fixed so I can see something out of the screen)
I'll definitely do my homework now I'm worried I may have flashed some other place than boot, since Android is still booting, so now checking all corners of the tablet is on top of the agenda.
I know some things may not work with a vanilla kernel, but I was hoping enough would work for it to boot. Then I could worry about the rest afterwards. Maybe using the JB kernel source will be easier, but I don't know how much has been changed in android which is used in linux. I suspect Google has worked more on modifying linux for android use than ASUS has worked to make their hardware run in android. Another option is to work on what Nvidia has published.
Now I'm getting more experienced. I hope I get some real progress before I brick it
It turned out I wasn't writing anything to flash. It seems the first blob(un)packing tools mentioned in http://forum.xda-developers.com/showthread.php?t=1697227 aren't working (for me on my tab anyway). But when I tried the BlobTools2 with the blobpack -s option my resulting linux blob was written to flash (using fastboot -i 0x0b05 flash boot boot.img).
Unfortunately my gentoo linux kernel wasn't any good. I never got past the first Asus logo and on top of that CWM recovery couldn't restore Android. CWM went through the motions but nothing booted. I had to flash the stock blob, then I got my Android back.

[SCRIPT][UBUNTU][ROM-BUILDING] Build Environment Setuper :P

This is a script that should last a while when it comes to compatibility. It helps guide you through setting up a build environment to build an AOSP rom from source. I'll create a few more that help for compiling from some other ROM repos (think PA, CM, AOKP, that kind of thing) but for now this is what I've got. I'm working on a second that can set up the source for compiling, choose a device to compile for (and hopefully be able to download stuff like prebuilts and other stuff as well and downloading proprietary blobs) actual devices, compile them, copy the zip to an out folder, and in some cases even directly sideload it. Enjoy!
Oh yeah, you need Ubuntu/derivative other than mint 14.04 or later (64 bit version ONLY) and over 60gb of free space.
This guide currently downloads source for android 5.0.
Has anyone tried this? Did it help?

ext2/3/4 filesystem create/fix tools (e2fstools pkg) static build for arm64 devices

e2fstools package, statically built for arm64 devices from Google's googlecode.com Oreo branch
NOTE: These will support ANY version of android's filesystems that use ext2 or ext3 or ext4. I built them from oreo branch as that one was the closest to compiling without any editing of the Makefiles. Don't let the name throw you off
I needed to run a modern fsck on a rooted device I have that I have been doing some hacking on.
The filesystem was in bad shape and the on-device e2fsck absolutely refused to check it while it was even mounted, even with the force option. Out of part desperation part determination I decided I would just build one myself. So I went and dug up the sources from googlecode.com, transfered them to my linux workstation, and after much fighting with gcc for cross compilation, finding a place in the google git repo where they actually build (hence going with orero), and having to tweak the c code even in a few places (mostly fixing includes and whatnot, no actual coding on my part), I succeeded.
As it says in the title, these are all the e2fstools binaries built from Google's googlecode.com source tree in their Oreo release branch. They are also compiled statically (no libraries are needed for them to function) so they should work absolutely fine on any device that has a 64bit arm (aarch64) processor. I have tested a handfull of them and they work perfectly fine on my Samsung Galaxy s8. In fact I used the fsck.ext4 binary to repair my system partition which it did perfectly.
https://www.dropbox.com/s/owb76hohnjzjdwe/e2fstools-oreo-aarch64-static.tar.gz?dl=0
Hope they come in as handy to someone else as they did me.
List of files follows:
Code:
[email protected]:~> tar tzf e2fstools-oreo-aarch64-static.tar.gz
e2fsbin/
e2fsbin/e2undo
e2fsbin/e2image
e2fsbin/badblocks
e2fsbin/mkfs.ext3
e2fsbin/fsck.ext4dev
e2fsbin/e2initrd_helper
e2fsbin/fsck.ext3
e2fsbin/e4crypt
e2fsbin/e4defrag
e2fsbin/mke2fs
e2fsbin/e2fsck
e2fsbin/fsck.ext4
e2fsbin/filefrag
e2fsbin/tune2fs
e2fsbin/e2freefrag
e2fsbin/uuidd
e2fsbin/e2label
e2fsbin/mkfs.ext2
e2fsbin/blkid
e2fsbin/logsave
e2fsbin/lsattr
e2fsbin/uuidgen
e2fsbin/findfs
e2fsbin/mklost+found
e2fsbin/dumpe2fs
e2fsbin/mkfs.ext4
e2fsbin/debugfs
e2fsbin/fsck.ext2
e2fsbin/mkfs.ext4dev
e2fsbin/resize2fs
e2fsbin/chattr
e2fsbin/fsck
PS: Now that I have a working arm64 cross compilation system setup, if anyone else desperately needs a working static binary for anything relatively simple to build (as in not 50 million dependencies for me to track down and install) and can send me or link me the sources for it and its dependencies, I would be happy to oblige.
Unfortunately, my device is armv7
buengeut said:
Unfortunately, my device is armv7
Click to expand...
Click to collapse
I forget, is that 32bit? If so i could fairly easily build new ones that are 32bit. Did you try them and they didnt work? If its 64bit they may work anyway, as these dont use any fancy instructions, and i did not build them even with -O1. I thought the main differences between the different "v"s of the same arch (32v64) was in libc and friends, of which these dont use as they are completely static so libc is built in.
I was even thinking of making this a flashable zip, but i hadnt bothered as no one replied to my initial post so i didnt think anyone cared ?️
partcyborg said:
I forget, is that 32bit? If so i could fairly easily build new ones that are 32bit. Did you try them and they didnt work? If its 64bit they may work anyway, as these dont use any fancy instructions, and i did not build them even with -O1. I thought the main differences between the different "v"s of the same arch (32v64) was in libc and friends, of which these dont use as they are completely static so libc is built in.
I was even thinking of making this a flashable zip, but i hadnt bothered as no one replied to my initial post so i didnt think anyone cared ?️
Click to expand...
Click to collapse
ARMv7 is ARM 32bit, 64bit program will not work on a 32bit system.
Can you build e2fstools for ARMv7.
Sadly your link is down.
would you care to reupload?
LNQ said:
Sadly your link is down.
would you care to reupload?
Click to expand...
Click to collapse
Sure. I'll even make it flashable this time ?
Thanks alot, good sir!
Legend! I'd been dealing with not being able to repair my /data errors for the past few days since my Oreo update. The current TWRP (3.2.3.4) still has an ancient e2fsck that doesn't support the ext4 quota option that LG formats their Oreo data partition with. The updated version in /system/bin works while the OS is running which is why I knew I had errors, but I couldn't get it to run in TWRP to fix them because of the incompatible library files.
I was all set to reinstall my Android SDK and compile another version with inbuilt libraries when I decided to do one last search and found this thread where you'd already done it. So thanks for saving me a few hours of downloading/installing/remembering how to compile for Android all over again
I guess I can also vouch for it working on an LG V20. I don't know if it's just LG's version of Oreo that needs the later e2fsck or others too, but anyone who can't repair errors on their ext4 partitions in TWRP due to needing a newer e2fsck version should be able to use this version. I just copied the file fsck.ext4dev to /cache and ran it from there on my data partition.
Your link is dropbox banned...
Any chance you could attach the zip here...?
quotient said:
Your link is dropbox banned...
Any chance you could attach the zip here...?
Click to expand...
Click to collapse
Seconded!
@partcyborg
Any chance you could put this file somewhere else? The above link is banned.
Thanks!
Hi,
I have a Oneplus 3 that after 3 years of use became sluggish as hell at file system access.
After reading thus document https://www.usenix.org/system/files/conference/hotstorage16/hotstorage16_ji.pdf
I would give a try to your e2fstools build.
Can you repost a link to download?
Thanks in advance
partcyborg said:
I forget, is that 32bit? If so i could fairly easily build new ones that are 32bit. Did you try them and they didnt work? If its 64bit they may work anyway, as these dont use any fancy instructions, and i did not build them even with -O1. I thought the main differences between the different "v"s of the same arch (32v64) was in libc and friends, of which these dont use as they are completely static so libc is built in.
I was even thinking of making this a flashable zip, but i hadnt bothered as no one replied to my initial post so i didnt think anyone cared ?️
Click to expand...
Click to collapse
Late to this thread, great work!
I have the exact same problem.
Could you please post flashable zip and/or instructions how to load this into android?
Thank you
I found a binary on website, tested on Nexus 5 (ARMv7L 32bits)
GitHub - FerryAr/e2fsprogs-arm: Static build of e2fsprogs for Android Magisk Module
Static build of e2fsprogs for Android Magisk Module - GitHub - FerryAr/e2fsprogs-arm: Static build of e2fsprogs for Android Magisk Module
github.com
partcyborg said:
e2fstools package, statically built for arm64 devices from Google's googlecode.com Oreo branch
NOTE: These will support ANY version of android's filesystems that use ext2 or ext3 or ext4. I built them from oreo branch as that one was the closest to compiling without any editing of the Makefiles. Don't let the name throw you off
I needed to run a modern fsck on a rooted device I have that I have been doing some hacking on.
The filesystem was in bad shape and the on-device e2fsck absolutely refused to check it while it was even mounted, even with the force option. Out of part desperation part determination I decided I would just build one myself. So I went and dug up the sources from googlecode.com, transfered them to my linux workstation, and after much fighting with gcc for cross compilation, finding a place in the google git repo where they actually build (hence going with orero), and having to tweak the c code even in a few places (mostly fixing includes and whatnot, no actual coding on my part), I succeeded.
As it says in the title, these are all the e2fstools binaries built from Google's googlecode.com source tree in their Oreo release branch. They are also compiled statically (no libraries are needed for them to function) so they should work absolutely fine on any device that has a 64bit arm (aarch64) processor. I have tested a handfull of them and they work perfectly fine on my Samsung Galaxy s8. In fact I used the fsck.ext4 binary to repair my system partition which it did perfectly.
https://www.dropbox.com/s/owb76hohnjzjdwe/e2fstools-oreo-aarch64-static.tar.gz?dl=0
Hope they come in as handy to someone else as they did me.
List of files follows:
Code:
[email protected]:~> tar tzf e2fstools-oreo-aarch64-static.tar.gz
e2fsbin/
e2fsbin/e2undo
e2fsbin/e2image
e2fsbin/badblocks
e2fsbin/mkfs.ext3
e2fsbin/fsck.ext4dev
e2fsbin/e2initrd_helper
e2fsbin/fsck.ext3
e2fsbin/e4crypt
e2fsbin/e4defrag
e2fsbin/mke2fs
e2fsbin/e2fsck
e2fsbin/fsck.ext4
e2fsbin/filefrag
e2fsbin/tune2fs
e2fsbin/e2freefrag
e2fsbin/uuidd
e2fsbin/e2label
e2fsbin/mkfs.ext2
e2fsbin/blkid
e2fsbin/logsave
e2fsbin/lsattr
e2fsbin/uuidgen
e2fsbin/findfs
e2fsbin/mklost+found
e2fsbin/dumpe2fs
e2fsbin/mkfs.ext4
e2fsbin/debugfs
e2fsbin/fsck.ext2
e2fsbin/mkfs.ext4dev
e2fsbin/resize2fs
e2fsbin/chattr
e2fsbin/fsck
PS: Now that I have a working arm64 cross compilation system setup, if anyone else desperately needs a working static binary for anything relatively simple to build (as in not 50 million dependencies for me to track down and install) and can send me or link me the sources for it and its dependencies, I would be happy to oblige.
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Click to collapse
Hi nice compilation job! I know it's not always easy to compile these binaries from source...
Can you please reupload you archive here as attachment? Thanks!
lebigmac said:
Hi nice compilation job! I know it's not always easy to compile these binaries from source...
Can you please reupload you archive here as attachment? Thanks!
Click to expand...
Click to collapse
There's a Magisk module that does cross-compilation specifically, you should get it.
By the way, the link for that drop box is dead.

Using an Arm-V8a Emulator / QEMU to boot full device firmware

I've come to ask if anyone could give me some more insight on using PC application to emulate the Arm 64-Bit Arch in a way that would allow it to boot a full android firmware package? Namely a Samsung Device, it would entail the pieces of an ODIN firmware package or a normal system dump from the device.
Now I've seen this done. But that usually involves building AOSP from source or using a factory nexus image. I understand I could achieve my goal if I wanted to use a stock AOSP rom, but it should still be achievable using one of Samsung's roms right? Especially since a lot of their devices include init files for goldfish.
But I'd really like to ask for some pointers from some people knowledgeable in the commands of the emulators.

Question attempt at learning how to compile TWRP for our device.

I am not an experienced dev, and only know enough to be dangerous. that said, i used twrpdtgen from https://github.com/twrpdtgen/twrpdtgen to generate what ought to be the berlna device tree with the necessary board files etc.
what do i have to do, specifically, to clone the twrp source via git/repo? can anybody here explain it like you realize i don't know what i am doing i'll figure git and repo out eventually, but this will go quicker if someone would enlighten me
which android version do i want to build twrp with? apparently 12.1 support isn't finished yet, so i should use 11 with aosp source?
note, for our deivce you need to use the script on upon boot.img as we've a/b format, grab from latest stock rom to gen yourself, or see attached. also, necessary to use WSL on windows with a linux distro, or a linux vm, python on windows will not work.
please feel free to use these if it furthers the cause of compiling twrp before i learn how to use git and repo and compile it.. hehe
I wanted to try my hand at this and start digging into git and repo. I got as far as getting all the files ready, setting up the tree where it needed to be, used ". build/envsetup.sh", then lunched with option 5, which is omni-berlna_eng, which is closest to the twrp minimal manifest build option.
After I lunch, the issue arrives with the fact that omni-berlna_eng uses a depreciated PRODUCT_STATIC_BOOT_CONTROL_HAL, whatever that means. So I tried using lunch option 2, which would be an aosp-arm64_eng, but that just gives me the error "#### failed to build some targets (1 seconds) ####".
As of now, I'm at a loss. I don't have the extra time to spend working on this to make it function, and I only get a few hours at a time to get a crack at it, but nothing seems to work.
Edit:
I should mention, this is my first attempt at anything android development. I got this phone as a secondary carry on and I've dirtyflashed Pixel Experience onto it using a method found for Moto G Power TONGA. Wanted to see if I could get TWRP running since dirty flashing killed my mms and calling services.

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