Lollipop kernel: this post Moto G 4G peregrine only
Mog shot
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Stock ROM (UK ONLY!)
Tesco GB 4.4.4 ROM mirror here May be useful to UK users who want to flash back and re-download the OTAs
Stock 5.1 Kernel zip
Thank user J0kker then download in the post below his
Final KitKat zip: this post
Source code: https://github.com/bedalus/moggy/
Toolchain: http://forum.xda-developers.com/showthread.php?t=2098133 4.9.3 a7 optimised version
Holy smoke.... it's bedalus!:highfive:
@hekomat Please do not swear on XDA.
From you friendly moderator, @Toledo_JAB
bout 2 sound like an jerk...but...can you build one for the falcon too?
thanks sooo much
Sorry for asking but what are the actual changes from the stock kernel?
CJMom said:
what are the actual changes from the stock kernel?
Click to expand...
Click to collapse
So far the only changes are using an up-to-date linaro toolchain, removal of some debug logging, and switching the IO scheduler to cfq.
I saw there was no option for peregrine users so I thought I'd make one. At the moment the repo is very clean. It would make a good jumping off point if any other devs want to fork it and add fun stuff. I personally prefer to keep it simple.
OldYellowBricks said:
can you build one for the falcon too?
Click to expand...
Click to collapse
There's already a few kernels for falcon. What is it you're hoping I'll offer?
bedalus said:
There's already a few kernels for falcon. What is it you're hoping I'll offer?
Click to expand...
Click to collapse
To have a stock kernel built with latest linaro? Currently trying to do it myself for falcon, but I've just encountered the Motorola module whitelisting (WTF?). Never seen that before on other devices...
knizmi said:
To have a stock kernel built with latest linaro? Currently trying to do it myself for falcon, but I've just encountered the Motorola module whitelisting (WTF?). Never seen that before on other devices...
Click to expand...
Click to collapse
I'll happily talk you through it. How far are you through?
Oh, and you probably forgot to strip your wlan.ko, it has well over 30 MB I am surprised it even loads on peregrine.
---------- Post added at 10:11 PM ---------- Previous post was at 10:06 PM ----------
bedalus said:
I'll happily talk you through it. How far are you through?
Click to expand...
Click to collapse
Everything is allright - the kernel boots and everything works fine, the only problem was that I couldn't get wlan.ko to load. I didn't know about the whitelist thing, though. You can imagine my face when I looked at dmesg.
I should have some more time in an hour or so, if don't get it running by morning, I will PM you. Thanks for the offer.
OK, I've done it by adding
Code:
chmod 0666 module_hashes
echo ee04251847ff70190bfec61b19802c19afe29a16 >> module_hashes
chmod 0400 module_hashes
to your repack-ramdisk.sh. Seems a little dirty, but works
The other modules will have the same problem I believe. Unless I want to add their SHA hashes the same way, what is the correct way to bypass/update that whitelist? You don't mess with that file anywhere in your build or install scripts. Gonna try deleting it, but you don't do that either...
knizmi said:
OK, I've done it by adding
Code:
chmod 0666 module_hashes
echo ee04251847ff70190bfec61b19802c19afe29a16 >> module_hashes
chmod 0400 module_hashes
to your repack-ramdisk.sh. Seems a little dirty, but works
The other modules will have the same problem I believe. Unless I want to add their SHA hashes the same way, what is the correct way to bypass/update that whitelist? You don't mess with that file anywhere in your build or install scripts. Gonna try deleting it, but you don't do that either...
Click to expand...
Click to collapse
I've seen your new falcon thread congratulations on making it work. Thanks for the credit.
To circumvent the whitelist, you need to disable it in the kernel config: see here
You're right about the module stripping. I tried doing it in the build script, but it was the wrong approach. This commit works. Thanks for reminding me! I've updated the download link. The zip is now less than 8MB, much better.
Love to see new stuff in our beloved 4G.
Downloading and testing it right now. Thank you.
I want to try this too.
I just need to flash it from recovery?
deleting caches is needed?
If I want to go back to stock kernel just flash boot.img from my stock firmware using mfastboot?
Thanks!
CJMom said:
I just need to flash it from recovery?
deleting caches is needed?
If I want to go back to stock kernel just flash boot.img from my stock firmware using mfastboot?
Click to expand...
Click to collapse
Yep, the zip is flashable in CWM or TWRP. Deleting caches is not needed.
To return to stock, like you say...
Code:
mfastboot flash boot boot.img
But the stock boot.img does not contain copies the kernel modules. If you intend to go back to stock, you'll need to back up the entire folder /system/lib/modules from a stock install before flashing my kernel.
Stock peregrine boot.img: http://d-h.st/yF6
bedalus said:
To circumvent the whitelist, you need to disable it in the kernel config: see here
Click to expand...
Click to collapse
Lol, how easy. Didn´t see that, thank you.
bedalus said:
To return to stock, like you say...
Code:
mfastboot flash boot boot.img
Actually, I'm not sure if the stock boot.img copies the kernel modules or not. If you intend to go back to stock, it would be a good idea to back up the entire folder /system/lib/modules from a stock install before flashing my kernel.
Stock peregrine boot.img: http://d-h.st/yF6
Click to expand...
Click to collapse
To return to stock you need both boot.img and modules. Flashing boot.img only will disable your wifi.
Flashed it and everything is OK.
Waiting for future updates and features
Hey bedalus,
Are you planning to make a CM11 version?
beeeto said:
Hey bedalus,
Are you planning to make a CM11 version?
Click to expand...
Click to collapse
No, at this time I'm planning to build what I need and share. I'm fairly sure I'll be sticking with stock 4.4.4
testing version 3: http://d-h.st/1Sn
- Got the download to just over 5MB by switching to XZ compression
- f2fs cherry-picks from torvalds git up to kernel v3.18
I consider f2fs the newest piece of the kernel, and the filesystem is always a bottleneck for system performance, being slow compared to everything else. It makes sense to apply as many improvements in this regard as possible.
The cherry-picks may have affected stability. It's always hard to tell with such a huge amount of code revision. I've seen one new bug where if there is an unexpected shutdown, this causes a kernel oops on the subsequent reboot right after the filesystem recovery. Then the following reboot works normally. No damage the to filesystem, just a null pointer dereference.
Related
First ROM for LTE SCH-I905 Galaxy Tab 10.1
Beta 6
Features
Based on HMJ37 EH04
Includes Pershoot's OC Kernel 9/30
Fully Deodexed (ready for themeing)
Always Fully Zipaligned (script that runs at boot)
Rooted/su/busybox installed
V6 SuperCharger Adapted Script (Thanks zeppelinrox)
Honeycomb boot animation
Fixes
Auto rotate is broken
Known Issue(s)
none
Download
MD5 - dd583782dcdfd6f4c57c7da03321bbc0
Install
Simply download and flash with Clockwork Recovery
Know that the first boot takes a while
--Assumes that you have already install Clockwork Recovery--
--Assumes that you have already upgraded to EH04, this will not work with EG01--
Credits
pershoot
zeppelinrox
darky
Source
https://liquidspeed.googlecode.com/svn/ROM/trunk/
Screen shots please
Ooooh and First!!!!
Sent from my Photon Blaster.
moonzbabysh said:
Screen shots please
Ooooh and First!!!!
Sent from my Photon Blaster.
Click to expand...
Click to collapse
I have not changed the UI yet, so far just speed improvements and the capability to theme...so no need to screenshots. I am looking for a logo/theme...
Installed the ROM. Thanks for your work! So far it seems to work well. However i'm having an issue with the Cisco AnyConnect vpn client for rooted devices. I attached a picture of the error message. Based on the error message it looks as though the kernel was not compiled with a tun/tap driver. Can you verify and resolve?
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Sent from my SCH-I905 using XDA App
Exciting, thanks for the support for the LTE tab!
Touchwiz UI
I've been messing around with ROM's all weekend and was finally able to get the wifi rom with touchwiz to install on the Verizon Tab. I backed up with CWM and used the stock bootloader and it worked now we beed someone to include phone functionality and add the LTE stuff. Come on guys lets get going on this. Also I can report that everything runs great using the touchwiz rom, and i like it so much that at the moment ad for majority of the weekend I've had it on this rom even with its shortcomings - its amazing.
jobless said:
Installed the ROM. Thanks for your work! So far it seems to work well. However i'm having an issue with the Cisco AnyConnect vpn client for rooted devices. I attached a picture of the error message. Based on the error message it looks as though the kernel was not compiled with a tun/tap driver. Can you verify and resolve?
Sent from my SCH-I905 using XDA App
Click to expand...
Click to collapse
This ROM includes Pershoot 's kernel. Please head over to his thread and follow the instructions located there. He has a libs zip you can download that includes the tun module.
Thx. Battery is about to die. I will check it when I get home tonight and post results. Thx for the quick reponse.
Sent from my SCH-I905 using XDA App
Same Issue
i had the same issue using anyconnect, morkli helped me, here is the thread, found the tun.ko in the lib file:
http://forum.xda-developers.com/showthread.php?t=1275901
can someone post an md5 of this zip? I flashed it and it won't boot, tried it a few times. restored my backup in cwm and all is well.
livedeht said:
can someone post an md5 of this zip? I flashed it and it won't boot, tried it a few times. restored my backup in cwm and all is well.
Click to expand...
Click to collapse
I noticed that some updates included the boot rom, you might want to try an advanced recovery with nandroid after installing the update to restore the stock boot. I got further with the stock boot and custom rom.
roggrat said:
I noticed that some updates included the boot rom, you might want to try an advanced recovery with nandroid after installing the update to restore the stock boot. I got further with the stock boot and custom rom.
Click to expand...
Click to collapse
Are able to successfully flash Pershoots 's kernel? Without the boot.img you are not getting all the speed enhancements...
anyone have a nandriod backup of the OTA update EH04 they can send me? I want to include it in Liquidspeed...
I wound up getting it to work after i flashed it by simply wiping. It booted fine after that.
Thanks =D
Running great!
Just flashed it and getting it set up now, so far it's looking good
Question--Is there no boot image/animation? I was a bit confused (and concerned) that there was no image after the Samung splash screen--just blank. I thought it might have been a bad flash but decided to let it sit...sure enough Android eventually finished the initial boot.
jfl0wers said:
anyone have a nandriod backup of the OTA update EH04 they can send me? I want to include it in Liquidspeed...
Click to expand...
Click to collapse
Yea, I have a nandroid of the EH04 with pershoot's kernel. Is that good? If you want it, I'll just delete the data.img and send you the system, cache, boot, and recovery.img's. Unless all you want is the system.img?
jfl0wers said:
This ROM includes Pershoot 's kernel. Please head over to his thread and follow the instructions located there. He has a libs zip you can download that includes the tun module.
Click to expand...
Click to collapse
A no go. However I might be doing something wrong. I couldn't locate instructions on Pershoot's kernel thread. However I found the lib-2636.4.tar.gz download. I extracted the tun.ko file from /lib/modules/2.6.36.4-cyanogenmod+/kernel/drivers/net. I copied the extracted file to /data/local/modules/. Using terminal emulator i typed
su
insmod /data/local/modules/tun.ko
The command took. I launched the Cisco AnyConnect client and attempted to connect. I typed in my credentials and they app began to connect. The app would then FC and reboot the tablet or error and display cannot connect. The tablet would then run incredibly slow requiring a restart. Once booted the tablet ran normally and the tun driver did not load.
Any ideas?
jobless said:
A no go. However I might be doing something wrong. I couldn't locate instructions on Pershoot's kernel thread. However I found the lib-2636.4.tar.gz download. I extracted the tun.ko file from /lib/modules/2.6.36.4-cyanogenmod+/kernel/drivers/net. I copied the extracted file to /data/local/modules/. Using terminal emulator i typed
su
insmod /data/local/modules/tun.ko
The command took. I launched the Cisco AnyConnect client and attempted to connect. I typed in my credentials and they app began to connect. The app would then FC and reboot the tablet or error and display cannot connect. The tablet would then run incredibly slow requiring a restart. Once booted the tablet ran normally and the tun driver did not load.
Any ideas?
Click to expand...
Click to collapse
I tried and got the same result. I have not gotten around to following these instructions yet:
http://forum.xda-developers.com/showthread.php?t=1185370
or
http://forum.xda-developers.com/showthread.php?t=1262315
jfl0wers said:
anyone have a nandriod backup of the OTA update EH04 they can send me? I want to include it in Liquidspeed...
Click to expand...
Click to collapse
Just in case you still need it: http://www.multiupload.com/YNP78LEL9N This is unrooted stock EH04.
kidserious said:
Yea, I have a nandroid of the EH04 with pershoot's kernel. Is that good? If you want it, I'll just delete the data.img and send you the system, cache, boot, and recovery.img's. Unless all you want is the system.img?
Click to expand...
Click to collapse
Thanks, a system.img would be great!
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SOURCE
**Snapdragon™ is a registered trademark owned by Qualcomm Technologies Inc.
**Synapse™ is a registered trademark owned by @Andreilux
**(v1)Xcelerate Logo™ is created by @fareed_extreme
**(v2)Xcelerate Logo™ is created by @Sharan Narayan
XDA:DevDB Information
Xcelerate™ Custom Kernel, Kernel for the YU Yureka
Contributors
kairi_zeroblade, DooMLoRD, RohanAJoshi
Kernel Special Features:
Version Information
Status: Stable
Current Stable Version: Production build 4
Stable Release Date: 2015-04-11
Created 2015-02-16
Last Updated 2015-04-11
Reserved
Short Credit list:
DooMLoRD for assisting in the compilation
Rohan Joshi, Prithvi Raju and Raj Gopi for testing
Cyanogen
ARM
Short Feature list:
Basic Governors(I won't add Ripoffs)
Built using my own GCC 4.9.x Toolchain(with fixes specifically Aimed at Cortex A53 erratas) built across the standards of Google's own Toolchain..
Simple and no fancy stuff..(more does not guarantee it's better)
Uses a simple free and user friendly application called Synapse by @AndreiLux for configuration purposes(slightly adding more functionality)
A few Notes:
Be advised that this kernel is best used "As is" i do want to prohibit the use of scripts that they say "enhances performance and battery" just use the kernel as it is..everything is managed automatically by the kernel and rest assured continuous innovations are en-route.
**Camera might be broke on OLDER CM11 and UNOFFICIAL BUILDS since this is built using the latest source from Cyanogen use this FIX
Compatibility list:
According to testers/users feedback the Kernel works on the FOLLOWING ROMS(tested)
CyanogenMod 11(Stable)
The list will grow as soon as Testers/Users can provide means and ways to make this compatible with everything..
Downloads
Grab latest Production builds here
Nice work mate :good:
BTW could have been much better if u could just left cm commits on git
so would have been easier for other devs to track earlier parent commit changes Rather than using : initial dump of Yureka source from CM snapshot 2-13-2015
Anyways no problems .....
Proud to be tester of this kernel..
working amazingly..
charging speed is double than before now..
also smoothness is awesome, thanks bro..
in call battery drain is dramatically reduced from 12% / hr to 6% / h..
will seek for further features..
does it shutdown cores when low usage ???
Not a fan of Custom Kernels, but...
but, yeah, but for the first time 'll be trying this (don't know why but I have this voice inside of me that's compelling me to try this out), hope everything goes well, will edit to share my experiences once I've used it for a couple of days, till then, thanks for this and appreciations for your efforts.
more governors please?
Thanks a lot! I had been waiting for this kind of a custom kernel!
hey, could you add smartassv2 governor to the kernel?
*downloading the kernel as i type*
Cheers!
:good: :good:
camera not working!!!!!!!!!!!!!!!!
sauravdante said:
camera not working!!!!!!!!!!!!!!!!
Click to expand...
Click to collapse
Flash the updated kernel I have posted, it includes the libs, then flash xcelerate kernel, camera should work.
Op can add those libs.
No UCI support detected !
Damn ! OP enlighten me on this error when I try to open Synapse.
I'm rooted, I have the stock room that came with the cell, the ago had superuser permissions, but still I'm not able to get that app to work. Did a normal flash, booted into recovery, selected the zip that I downloaded and record again.
Googled for the error, found a post in which a guy having Xiaomi had the exact same problem, there you our someone suggested to flash normally, so that's kinda what I did, what m I missing ??
hkm93 said:
Damn ! OP enlighten me on this error when I try to open Synapse.
I'm rooted, I have the stock room that came with the cell, the ago had superuser permissions, but still I'm not able to get that app to work. Did a normal flash, booted into recovery, selected the zip that I downloaded and record again.
Googled for the error, found a post in which a guy having Xiaomi had the exact same problem, there you our someone suggested to flash normally, so that's kinda what I did, what m I missing ??
Click to expand...
Click to collapse
I am getting this. [emoji20]
hkm93 said:
Damn ! OP enlighten me on this error when I try to open Synapse.
I'm rooted, I have the stock room that came with the cell, the ago had superuser permissions, but still I'm not able to get that app to work. Did a normal flash, booted into recovery, selected the zip that I downloaded and record again.
Googled for the error, found a post in which a guy having Xiaomi had the exact same problem, there you our someone suggested to flash normally, so that's kinda what I did, what m I missing ??
Click to expand...
Click to collapse
Sudeep Duhoon said:
I am getting this. [emoji20]
Click to expand...
Click to collapse
Support for synapse is probably coming in the next builds..as I'm not familiar with the sysfs for the YU yet..I'm building this blind and with @RohanAJoshi only doing the tests for me.. rest assured its stable, fast and battery friendly..
EDIT:
I'm still looking for testers if someone is interested in hitting up to the task well you can find me on Hangouts via [email protected]
I am in pac man rom can i use this kernal?
proximity issue
Facing proximity issue after flashing this kernel.... Hope so this ll get fixed in upcoming builds nice work indeed
---------- Post added at 04:59 AM ---------- Previous post was at 04:55 AM ----------
Camera not working after flashing latest build
Been using for more than half a day. So far so good. thanks @kairi_zeroblade :good:
Testing your kernel on dumtara CM11 build.
Any possibilities of some custom governors that implement core hot plugging functionality ??
Error
satitrip said:
Click to expand...
Click to collapse
Dude, its already posted in the thread, Read first. Correct your image size, it covers my screen, seriously.
cm11 dumtara
I'm on cm 11 by dumtara. can I flash this kernel?
kairi_zeroblade said:
I'm still looking for testers if someone is interested in hitting up to the task well you can find me on Hangouts via [email protected]
Click to expand...
Click to collapse
I saw ur post regarding that, but I may not have mentioned this but I'm not so good in technical side of android. Being a java developer I never bothered about them but for the past few days I'm actually inclined towards learning android development too, say just as an additional hobby, and to my surprise it's Java too.
Now that I have already flashed the kernel, I can be of some use for sure, but conditions apply. I am not available all ( I can update you on a daily basis in between 10-11 pm IST, and on weekends if that's ok with you) the time and someone will have to guide me or provide info on what I'm supposed to do, coz I have no idea what needs to be done while testing a kernel.
Sudeep Duhoon said:
Flash the updated kernel I have posted, it includes the libs, then flash xcelerate kernel, camera should work.
Op can add those libs.
Click to expand...
Click to collapse
Thanks.. But which kernel should should I flash first and which one next.. Can you give download links pls.
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Code:
*** Disclamer
Please behave responsibly and avoid thermonuclear war. I am
not responsible for any bricked devices, etc.
Introduction
This is Zest Kernel. It's an optimized kernel for our device which includes a few nifty features. Built, on every security update, you'll have the best of the best. Features will be listed below and shared, to the most of my ability, across all my supported devices. This isn't just my kernel it's yours too - request any features you like and I'll try to add them in. However, I'm also busy with studies so please don't ask for dumb stuff.
THIS DEVICE IS CURRENTLY A TESTING KERNEL AND MAY NOT WORK. BACKUP YOUR BOOT.IMG BEFOREHAND.
Click to expand...
Click to collapse
Features
Built on UBERnaro toolchain
High tickrate to avoid jitter
Lib optimisations
F2FS support
Click to expand...
Click to collapse
Installation instructions
* Flash via TWRP, or Franco Kernel Manager (needs testing for this device)
* Enjoy!
Click to expand...
Click to collapse
Download
Latest is available at ftp://ftp.lasterhub.me.
Click to expand...
Click to collapse
FAQ
Tag me in XDA's Amazon.. oh wait. There's no group (yet?). Just PM me for now.
Click to expand...
Click to collapse
Special Thanks To
Code:
* MTK for being retarded
XDA:DevDB Information
Zest Kernel Projecc, Kernel for the Amazon Fire
Contributors
LazerL0rd, ggow, k4y0z
Source Code: https://gitlab.com/ZKP/ford
Kernel Special Features:
Version Information
Status: Testing
Created 2019-05-28
Last Updated 2019-05-29
LazerL0rd said:
Last Updated 2019-05-28
Click to expand...
Click to collapse
Nice.
May I ask for a little safety step to be added. Someone here is gonna not read and try to flash this on 'Austin'
And your anykernel.sh has device check set at NO. (do.devicecheck=0). Maybe better to make it (do.devicecheck=1)
Hi, On top of latest lineage rom, it gave me bootloop. Reflashing stock boot image fixed. Is it me or it's still under development?
newinnov said:
Hi, On top of latest lineage rom, it gave me bootloop. Reflashing stock boot image fixed. Is it me or it's still under development?
Click to expand...
Click to collapse
Austin or ford?
Rortiz2 said:
Austin or ford?
Click to expand...
Click to collapse
Ford 2015 it is
mrmazak said:
Nice.
May I ask for a little safety step to be added. Someone here is gonna not read and try to flash this on 'Austin'
And your anykernel.sh has device check set at NO. (do.devicecheck=0). Maybe better to make it (do.devicecheck=1)
Click to expand...
Click to collapse
Ah, yes. Weirdly some TWRPs react funnily to this command so on-release I always leave it off. Seems there's only one TWRP here tho. Thanks, will do :highfive:.
newinnov said:
Hi, On top of latest lineage rom, it gave me bootloop. Reflashing stock boot image fixed. Is it me or it's still under development?
Click to expand...
Click to collapse
The kernel seems to be pretty much correct, it's the flashing procedure that I'm uncertain of. It's the same base kernel @ggow uses with some building fixes and my additions. But yes, this is a development kernel until anyone can actually get it working with the patch.
LazerL0rd said:
The kernel seems to be pretty much correct, it's the flashing procedure that I'm uncertain of. It's the same base kernel @ggow uses with some building fixes and my additions. But yes, this is a development kernel until anyone can actually get it working with the patch.
Click to expand...
Click to collapse
I had a stock built kernel from unmodified Amazon source, and installed it with anykernel, before I discontinued the project. @ggow showed me up. Way up, by making his kernel free from that Amazon log feature.
Anyway anykernel flashes this device with the exploit no problem.
Think I had used anykernel 2 though. You have used 3.
I will look again, and see if I see any difference in the scripts.
EDIT:
I just tried to flash with the anykernel2 script i had used before. And result was bootlooping on the Amazon logo.
mrmazak said:
I had a stock built kernel from unmodified Amazon source, and installed it with anykernel, before I discontinued the project. @ggow showed me up. Way up, by making his kernel free from that Amazon log feature.
Anyway anykernel flashes this device with the exploit no problem.
Think I had used anykernel 2 though. You have used 3.
I will look again, and see if I see any difference in the scripts.
EDIT:
I just tried to flash with the anykernel2 script i had used before. And result was bootlooping on the Amazon logo.
Click to expand...
Click to collapse
I tried both AK2 and AK3 with osm0sis seeing no issues in my AK configuration, so it’s not that.
Yah, I think something was changed and some sort of check was added in. I think I tried dm-verity disabling too but I may be wrong. My kernel is available at https://lasterhub.me/zk.html for anyone to try though ( click menu then BETA before selecting as no release version was released yet ).
I can't get the link to work? This ded?
beynolds.rurt said:
I can't get the link to work? This ded?
Click to expand...
Click to collapse
Yes. This is dead. OP never followed up after he was told this did not work as claimed.
mrmazak said:
Yes. This is dead. OP never followed up after he was told this did not work as claimed.
Click to expand...
Click to collapse
Knew it was too good to be true
Hello, I am trying to build and run a custom kernel on S21 Ultra Exynos (SM-G998B). Reason: support permissive SELinux policy.
I am running AUF6 firmware, downloaded AUF6 kernel source from Samsung, followed the included build instructions and with unmodified sources, ran included `build_kernel.sh `, and created a boot.img using AIK, and flashed the resulting .img file via TWRP.
Rebooting into system, the phone is stuck on displaying the boot logo. Reading /proc/last_kmsg through TWRP, logging stops right after 'Starting kernel...' message. At this point I am not sure what else I can do to resolve this. Please help.
P.S. my compiled Image size is 26M, while stock is 28M.
The tutorial I followed: https://pucarasec.wordpress.com/2020/06/16/debugging-the-samsung-android-kernel-part-2/
Another post with trying to build S21 kernel, with outcome, similar to mine: https://groups.google.com/g/android-platform/c/ljRkDbBE0lE/m/mr4MM0WGCAAJ
mzakharocsc said:
Hello, I am trying to build and run a custom kernel on S21 Ultra Exynos (SM-G998B). Reason: support permissive SELinux policy.
I am running AUF6 firmware, downloaded AUF6 kernel source from Samsung, followed the included build instructions and with unmodified sources, ran included `build_kernel.sh `, and created a boot.img using AIK, and flashed the resulting .img file via TWRP.
Rebooting into system, the phone is stuck on displaying the boot logo. Reading /proc/last_kmsg through TWRP, logging stops right after 'Starting kernel...' message. At this point I am not sure what else I can do to resolve this. Please help.
P.S. my compiled Image size is 26M, while stock is 28M.
The tutorial I followed: https://pucarasec.wordpress.com/2020/06/16/debugging-the-samsung-android-kernel-part-2/
Another post with trying to build S21 kernel, with outcome, similar to mine: https://groups.google.com/g/android-platform/c/ljRkDbBE0lE/m/mr4MM0WGCAAJ
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I'm sure you know this already, but there's a magisk module that does that already.
If I was to build a kernel I would try and definitely build something that has smoother performance or slightly better battery life.
Keep up the efforts. It is a shame there are no custom kernels for the phone...
Burt Squirtz said:
I'm sure you know this already, but there's a magisk module that does that already.
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If you are talking about this: https://github.com/evdenis/selinux_permissive , then having tried it it did not work. On their own XDA thread, they state 'The module will not work if your kernel compiled with always enforcing config, e.g., stock samsung kernels. It's not possible to enable permissive mode on such kernels'. Unless I am missing something here?
Ok. I managed to install a custom kernel. There is already one in development here: https://github.com/mohammad92/android_kernel_samsung_exynos2100
Here are the steps I took.
1. Downgraded firmware to 3AUDA.
2. I ran 'build_menu' script from the repository, and selected p3s target. Here, I ran into build errors, so I commented out 'export LLVM=1' from 'build_menu' script, and this produced a kernel image. While that matched original instructions from samsung kernel release, the result did not boot (same hang as before), so I put LLVM=1 back, and resolved build issues by installing clang on my host system. It seems like LLVM=1 is the trick here, as I now have a working custom kernel, and it is 'permissive'. Perfect. Attached is the zip file to be installed with TWRP.
mzakharocsc said:
Ok. I managed to install a custom kernel. There is already one in development here: https://github.com/mohammad92/android_kernel_samsung_exynos2100
Here are the steps I took.
1. Downgraded firmware to 3AUDA.
2. I ran 'build_menu' script from the repository, and selected p3s target. Here, I ran into build errors, so I commented out 'export LLVM=1' from 'build_menu' script, and this produced a kernel image. While that matched original instructions from samsung kernel release, the result did not boot (same hang as before), so I put LLVM=1 back, and resolved build issues by installing clang on my host system. It seems like LLVM=1 is the trick here, as I now have a working custom kernel, and it is 'permissive'. Perfect. Attached is the zip file to be installed with TWRP.
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commenting that line will brake your image, we need llvm to make bootable kernel.
afaneh92 said:
commenting that line will brake your image, we need llvm to make bootable kernel.
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Makes sense, however, this 'export LLVM=1' line is not present in the samsung's official build instructions that come with the kernel zip. Nor have I found any mention of this flag on any of the kernel building tutorials online and on this forum. Maybe I missed something, but this looks non-obvious for someone new to this.
mzakharocsc said:
Makes sense, however, this 'export LLVM=1' line is not present in the samsung's official build instructions that come with the kernel zip. Nor have I found any mention of this flag on any of the kernel building tutorials online and on this forum. Maybe I missed something, but this looks non-obvious for someone new to this.
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By reading Makefile you can find it there.
afaneh92 said:
By reading Makefile you can find it there.
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Yeah, I read the makefile. LLVM flag is supported there, but unset/unused by default, resulting in corrupt images. and you have to somehow know that you need to set it externally.
If someone build a good custom kernel wich improves battery and performance i will donate 100 usd
I want custom kernels too.
Would it be possible to make a bounty?
I'm interested in battery, hackability, booting time, stability and performance.
songoku1 said:
If someone build a good custom kernel wich improves battery and performance i will donate 100 usd
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Are there some official XDA bounty program for this stuff?
timofonic said:
Are there some official XDA bounty program for this stuff?
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Sadly no on my oneplus i use arter kernel and i absolutely lovibg it. Sadly for my s21u there isnt one :/
What's more important now is to stress samsung's opensource service to release the AUG4 kernel source
DaReDeViL said:
What's more important now is to stress samsung's opensource service to release the AUG4 kernel source
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Already requested it.
interested in a custom kernel also, it's already a very good device but battery life needs to be better
afaneh92 said:
Already requested it.
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Got it
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DaReDeViL said:
Got it
View attachment 5368845
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I will rebase my kernel soon
Ok
DaReDeViL said:
Got it
View attachment 5368845
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Hope we will see a custom kernel soon
Any news?
It's simple. I threw together this kernel out of necessity for micro lag fixes and better battery life.
Please expect only necessary updates.
If you have an issue, please provide a detailed report and please provide a logcat
Enjoy.
V-1.0.9 Zip download link = https://www.androidfilehost.com/?fid=4279422670115732041
V-1.0.9 Boot Image download link = https://www.androidfilehost.com/?fid=4279422670115732040
##################################
OP9R BUILD/ZIP only
OP9R-V-1.0.9-ZIP = https://androidfilehost.com/?fid=4279422670115732053
the boot.img is not pre-rooted. Please use the zip to remain rooted.
Kernel Source = https://github.com/APOPHIS9283/Singularity_Kernel
apophis9283 said:
It's simple. I threw together this kernel out of necessity for micro lag fixes and better battery life.
If you use Evolution-X this will break Fsync toggle as I opted for Dynamic Fsync instead. Past that you tell me.
Please do not expect a ton of updates.
If you have an issue, logcat or GTFO.
There is no Telegram link.
Enjoy.
Zip download link = https://www.androidfilehost.com/?fid=4279422670115706910
Boot Image download link = Coming soon.
Kernel Source = https://github.com/APOPHIS9283/Krieg_Kernel/commits/13
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Been using this for a while and very happy with performance..
Works smooth like a criminal
Thanks for release.
Running on OOS 13.
I missed custom I/O schedules & TCP algorithms.
Great to see that you had set Zram compression to zstd algorithm.
Cannot wait to see your next release !
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Ty dev for the kernel. Kernel is fine overall but scrolling performance could be a bit better.
Which device is your evo_defconfig for ?
I'm new to kernel building, just wondering .
hightech316 said:
Which device is your evo_defconfig for ?
I'm new to kernel building, just wondering .
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This was actually an idea I had using EvoX for OP8T.
efx7n said:
View attachment 5798177Ty dev for the kernel. Kernel is fine overall but scrolling performance could be a bit better.
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Thats probably because I use 300HZ timer interrupt frequency which I have no issue bumping to 1000HZ which Ill drop tomorrow for you all, along with a few minor changes.
I have updated the kernel. Addressing issue brought forth in the comments.
My camera doesn't seem to work . Everything else is doing great!
OOS Cam and Open Cam .
Running latest OOS13 stock .
Attached log.
hightech316 said:
My camera doesn't seem to work . Everything else is doing great!
OOS Cam and Open Cam .
Running latest OOS13 stock .
Attached log.
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I missed that you were running stock. I probably should've mentioned that. This was only meant for custom ROMs. I am truly sorry I overlooked saying that.
Can u please try to add support for 9r. Coz both 8t and 9r are the same. Just some minor changes ig.
apophis9283 said:
I missed that you were running stock. I probably should've mentioned that. This was only meant for custom ROMs. I am truly sorry I overlooked saying that.
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No worries .
OnePlus released their OOS13 kernel .
GitHub - OnePlusOSS/android_kernel_oneplus_sm8250 at oneplus/sm8250_t_13.0.0_op8
Contribute to OnePlusOSS/android_kernel_oneplus_sm8250 development by creating an account on GitHub.
github.com
How big of a pain would it be to take the blobs ( if that is even what is needed ? ) From that release onto yours ?
Or are they completely different and non compatible since one being AOSP and other OOS?
projektx said:
Can u please try to add support for 9r. Coz both 8t and 9r are the same. Just some minor changes ig.
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This was based off EvoX's kernel. If they use it for the 9r as well it should work, but if it doesn't. Sure when I get time, I'll peek at it. The zip probably would fail but the boot.img would be fine. Just have a backup to flash if it fails.
Always nice when you pop in and bless us with some butter. Running great and thanks for your work as always
Does it work on OnePlus 8 Verizon (IN2019)? I am on Kaleidoscope Rom (Android 12).
Zombify01 said:
Does it work on OnePlus 8 Verizon (IN2019)? I am on Kaleidoscope Rom (Android 12).
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Yes, I ran it on the IN2017 T-Mobile OnePlus 8 and it worked.
Unfortunately, I got rid of it because, as mentioned in the thread, FSync was replaced with Dynamic FSync. This prevents you from losing data if the screen is off, but not when it's on.
hammerhaigh said:
Yes, I ran it on the IN2017 T-Mobile OnePlus 8 and it worked.
Unfortunately, I got rid of it because, as mentioned in the thread, FSync was replaced with Dynamic FSync. This prevents you from losing data if the screen is off, but not when it's on.
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EDIT: use the boot.img and not the zip, the zip enables dynamic fsync
Fsync is enabled always, it only syncs while screen off if you enable it. Dont touch dynamic fsync and it remains as fsync on as always.
Im also testing a twrp build I made for oos13 firmware a13, all partitions should mount. EROFS. I dont keep up with everyones work, I dont think theres a recovery yet that has that possibility but I could be wrong.
Must be on op8t f15 firmware with a rom that uses erofs. You should be able to mount all partitions. If you want to test, you can get with me on telegram. I am only using TG due to the nature of this.
Testing twrp
t.me
Also heres v-1.2 of the kernel boot.img only not pre-patched
apophis9283 said:
Must be on op8t f15 firmware with a rom that uses erofs. You should be able to mount all partitions. If you want to test, you can get with me on telegram. I am only using TG due to the nature of this.
Testing twrp
t.me
Also heres v-1.2 of the kernel boot.img only not pre-patched
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Only OOS atm? Pretty sure the evoX filesystem isn't erofs.