[BETA][2017.10.01] SuperSU v2.82 SR5

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We7dy

Member
Mar 5, 2018
25
2
Hello,

I'm on Android Oreo 8.0, on the latest version of OxygenOS and when I try to flash SuperSu with the latest version of TWRP, when I restart, I get stuck on the OnePlus logo. Is SuperSu compatible with Oreo?
 

Ch3vr0n

Senior Member
May 6, 2009
1,693
668
41
Works fine on my N6p running 8.1 so yes, it's most likely something with the way the oxygen ROM acts

Sent from my Nexus 6P with Tapatalk
 
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Dr_Mask

Member
Sep 27, 2007
14
0
please help

my phone (Note 3 Neo duos)rooted with cf root and i have TWRP recovery ,

when i opened super user app it says (The Superuser binary (su) must be updated)
i clicked yes , it requested to reeboot and asked if i am TWRP or CWM or normal ,i choose TRWP ,then it rebooted in TWRP and update occurs

but phone keeps open in TWRP even when i press on power button only .

how to solve please ??
thanks
 

ashyx

Inactive Recognized Contributor
Oct 14, 2012
15,055
9,944
please help

my phone (Note 3 Neo duos)rooted with cf root and i have TWRP recovery ,

when i opened super user app it says (The Superuser binary (su) must be updated)
i clicked yes , it requested to reeboot and asked if i am TWRP or CWM or normal ,i choose TRWP ,then it rebooted in TWRP and update occurs

but phone keeps open in TWRP even when i press on power button only .

how to solve please ??
thanks
Reflash TWRP. Next time choose Normal only and do not use any utilities to reboot your device to recovery.
 

ktmom

Retired Forum Moderator
Apr 22, 2015
5,176
3,387
Deep Space Station K7
@Dr_Mask, it sounds like you have an older version of TWRP recovery that it's attempting to help this along. If your TWRP hasn't been updated since MM came out, it may be adding to your troubles.

If you flash SuperSu 2.82 SR5 in TWRP it should update the binary. Make sure to deny any pop-up from TWRP offering to do root updates/installs.



"Good judgment comes from experience, and a lot of that comes from bad judgment." - Will Rogers
 

vponomarev

Senior Member
Feb 27, 2008
210
67
Samsung Galaxy S9+
I have Galaxy S9+ (G965F) with latest TWRP 3.2.1.1. Flashed patched stock kernel that disables dm-verity, then flashed SuperSU 2.82 SR5.
At first it worked, but then, perhaps, after reboot when I start the app it just gets stuck on black screen.
If I clear app's data/cache, I see the initial green screen, but same back screen after pressing "Start" button.
Occasionally, once in a blue moon, I can open the app, but that's only until the next reboot.
I tried to see if there is anything obvious I can see in logcat (just ran "adb logcat"), but didn't notice anything interesting.
I then tried 'adb logcat "eu.chainfire.supersu:V" "*:S"', but didn't get anything.
Sorry for very little info, but not sure where else to look. Any suggestions? Thanks!
 
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ashyx

Inactive Recognized Contributor
Oct 14, 2012
15,055
9,944
I have Galaxy S9+ (G965F) with latest TWRP 3.2.1.1. Flashed patched stock kernel that disables dm-verity, then flashed SuperSU 2.82 SR5.
At first it worked, but then, perhaps, after reboot when I start the app it just gets stuck on black screen.
If I clear app's data/cache, I see the initial green screen, but same back screen after pressing "Start" button.
Occasionally, once in a blue moon, I can open the app, but that's only until the next reboot.
I tried to see if there is anything obvious I can see in logcat (just ran "adb logcat"), but didn't notice anything interesting.
I then tried 'adb logcat "eu.chainfire.supersu:V" "*:S"', but didn't get anything.
Sorry for very little info, but not sure where else to look. Any suggestions? Thanks!
Maybe the kernel isn't compatible with your current firmware or you are hitting encryption issues.
You'd be better off flashing the stock firmware then flashing the dm-verity/encryption patch to patch the stock boot image.
Be aware you will need to Format the data partition.
 

zongojim

Member
Oct 29, 2012
26
2
Dears,
I try to use SuperSU v2.82 SR5 on a Pixel (sailfish) with Android P Preview factory image.
Unfortunatly I have the message:
- Patching sepolicy
--- Failure, aborting

In attachment the recovery.log file.

Thanks i nadvance for your help !
 

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Dears,
I try to use SuperSU v2.82 SR5 on a Pixel (sailfish) with Android P Preview factory image...
I don't have this device but, I did a quick search within your device dedicated area on the forum and I had located the following thread post that reflects the same issue that your having with a solution that member had found which may be helpful for you as well.

https://xdaforums.com/showthread.php?p=74751877

If you have any issues, questions or concerns regarding that, try posting the question to that member within that thread. He, or someone else, may be able to provide some additional member guidance to help you out.

Good Luck!


~~~~~~~~~~~~~~~
I DO NOT provide support via PM unless asked/requested by myself. PLEASE keep it in the threads where everyone can share.
 
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Alxoom33

Senior Member
May 18, 2011
5,184
1,857
New York
www.sack-ip.com
Google Pixel Tablet
Dears,
I try to use SuperSU v2.82 SR5 on a Pixel (sailfish) with Android P Preview factory image.
Unfortunatly I have the message:
- Patching sepolicy
--- Failure, aborting

In attachment the recovery.log file.

Thanks i nadvance for your help !
Use Magisk! SuperSU doesn't work on Pixel 2 and 2XL.

Sent from my Pixel 2 XL using Tapatalk
 

Ch3vr0n

Senior Member
May 6, 2009
1,693
668
41
Well I do, in a way. The N6p WAS the flagship model at the time ;)

Sent from my Nexus 6P with Tapatalk
 

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  • 2533
    This thread is for SuperSU releases that are still in testing, and are not yet available through the Play store. The main thread for stable SuperSU releases is located here: https://xdaforums.com/apps/supersu/stable-2016-09-01supersu-v2-78-release-t3452703. The changelogs are in the old release thread.

    Please keep track of the version numbers in the thread titles, as the latest test release may not always be newer than the latest stable release.

    The latest test release is:
    SR5-SuperSU-v2.82-SR5-20171001224502.zip
    RELEASE NOTES
    That is a recovery flashable ZIP (I recommend FlashFire or TWRP). If you want to install via APK, it is also present inside the ZIP, in the common folder.
    617
    unSU Script zip -- Unroot with ease!

    Originally this was a little zip to help with uninstalling the old system-modifying version of SuperSU. It properly restores all the original files the SuperSU installer backed up (so, file-based OTA friendly!) and removes any files added by the installer/app. I figured other people might find it handy as well so it's attached below. Be aware, if you flashed SuperSU twice mistakenly, the SuperSU installer wasn't written to recognize that and so you've lost your originals; a system.img flash WILL be necessary in your case.

    Due to popular demand by the custom ROM community using this to unroot and pass SafetyNet checks/use Android Pay, etc., the script has been expanded to unroot Koush's SuperUser, ROM su binaries, as well as SuperSU Systemless (su.img and BINDSBIN), phh's Superuser (which is also systemless), and now Magisk and LineageOS addonsu.

    Note: To completely remove all traces of the systemless roots, you still need to flash a different, unrooted boot.img, likely the default one that came with the ROM. You can extract it from the ROM zip (or a /data/stock*.gz backup from your root solution before flashing unSU) and flash it using TWRP's awesome "Flash Image" functionality, or, "dirty flashing" the ROM zip should also work.

    My development work on my many projects comes out of my free time, so if you enjoy this project or anything else I've done on xda, please consider sponsoring my ongoing work using my GitHub Sponsors profile. For a one-time donation you can hit the donate link from my profile. Thank you for your support!

    P.S. If you found this handy then please check out my Odds and Ends thread for more flashable goodness. :D

    Previous download counts: 58944; 158506; 59850; 226692
    578
    f2fs with Android story is always complicated.

    So why is SuperSU broken with many custom ROMs:
    systemless SuperSU saves a raw ext4 image in /data/su.img and mounts it as a loopback device and to various locations upon boot.
    The problem with f2fs, is that most kernels included in custom ROMs have issues with managing loopback devices.
    This is not SuperSU issue, rather, kernel developers has to incorporate the necessary fix for f2fs.

    This “fix” is rather dumb :
    https://git.kernel.org/cgit/linux/k...y&id=0d5ed69805ee57d7b416c4a6b47c3b67284db105

    The f2fs head, Kim Jaegeuk forgot to add those pointer to post-4.10 versions of f2fs backports.
    (The stock OnePlus 3T’s kernel source code seems to already have this fix. This explains why OxygenOS didn’t have any issues with SuperSU.)
    So you have 2 choices :
    A. Cherry-pick that fix separately
    B. Merge f2fs version all the way up to 4.10(latest f2fs-stable.git is updated to 4.10)


    But there are more stories to be told, unfortunately.
    Both 2 methods introduce a new problem : breaks all previous f2fs versions to read the data.
    There is no on-disk-format change introduced by the new “fix”, but it turns out that older versions of f2fs has an issue which is exploited only when newer version of f2fs is used to write data.

    You need this additional fix, if you have no intention to update f2fs to the latest 4.10 version :
    https://git.kernel.org/cgit/linux/k...y&id=7a895023cc2c06c08a6cccb71e112255eb0837ee

    Without this fix, the kernel will panic upon reading any data.


    So we took care of the method A.
    However, there is still an issue with method B : deadlock.

    As noted in https://review.lineageos.org/#/c/95316/ , there are deadlocks present on the latest version of f2fs(from 4.8, iirc).
    It took about a month to bisect it, and I got the culprit commit :
    https://git.kernel.org/cgit/linux/k...y&id=de62dad6f502c67fd01b5c0b1f7f242836ce90d0

    I’m still yet to hear from the upstream developers, but I can confirm that reverting that commit fixes the deadlock.
    Our internal AOSPA builds are running on 4.10 f2fs with that commit reverted.


    TL;DR
    It’s not @Chainfire 's fault.
    You have to ask the kernel developer to fix the issue.
    2 methods for the kernel developers

    A. Incorporate only the necessary 2 fixes to fix loopback images :
    https://git.kernel.org/cgit/linux/k...y&id=0d5ed69805ee57d7b416c4a6b47c3b67284db105
    https://git.kernel.org/cgit/linux/k...y&id=7a895023cc2c06c08a6cccb71e112255eb0837ee

    B. If you want to upstream f2fs to the latest 4.10, revert this to avoid deadlock :
    https://git.kernel.org/cgit/linux/k...y&id=de62dad6f502c67fd01b5c0b1f7f242836ce90d0
    (A little credit would be appreciated, as it took me a frustrating month to bisect this)

    Thanks.
    348
    --- reserved ---
    189
    @ everyone

    This post is likely an important one going forward, it could be the answer to various issues people have on 6.0 related to /system.

    The conversation below pertains specifically to Nexus 6 @ 6.0.1, which has an almost full /system, but I'll bet the issue exists on all Nexus devices.

    Do you mean that there's even less space than on 6.0?
    Titanium Backup reports that there 15.6 MB free. Shouldn't this be enough for a very small mod such as an edit to build. prop?

    So after some further investigation, something pretty odd is going on.

    ext4 (the filesystem) has various types of reserved blocks.

    I suspect the tools on booted Android do not count one type of reserved block. Indeed, when you use "df" utility (both toolbox and toybox), it shows 15mb or so free. Using the same "df" utility in recovery (busybox) shows 0b free. It does show that not all blocks are in use, but the remainder is likely reserved.

    If you use a root shell on either booted Android or in recovery, trying to write contents to a new file in /system will fail. To make matters worse, file creation succeeds, but writing content does not, so you end up with a 0 byte file. You need to delete a few extra megabytes of files, before you are able to write even 1 byte to a new file!

    Many editing tools remove the old file and write a new file at the same spot rather than truly editing a file. I'm not sure if the latter has any chance of succeeding, but the former would definitely fail in this scenario.

    While the issue is understandable technically, it is likely to trip up a lot of tools, as the error is generated at the least expected moment.

    This issue is a magnet for file corruption and bootloops. Beware this issue when modifying anything on /system!

    DEVS Immediate hunch is that the difference is explained by usage of struct statfs's bfree vs bavail member.

    TL;DR Yes, even though TiBu and whatever other tool are showing you megabytes free, adding/modifying files is likely to give unexpected results on a (near-)full /system partition, and an unlucky edit can definitely prevent the device from booting! Can't give you exact numbers right now, but before modifying files or adding files to /system, I would recommend deleting files until you have at least 30-ish mb free.