Rooted Z2, Unable to mount /system RW - Xperia Z2 Q&A, Help & Troubleshooting

I have a weird problem that I can't figure out....
I installed the rooted 5.1.1 from this thread, http://forum.xda-developers.com/xpe...3-23-4-0-546-completeguide-t3171219?nocache=1, to a rooted Z2.
Root checker shows as rooted...SuperSU and Busybox up to date, can get to # in terminal emulator. I have tried ES File Explorer, Root Explorer and Terminal emulator, and all fail. The only error message I get is from Terminal emulator which is mount: Operation not permitted.
Any ideas what might be wrong?
Thanks!

Sony ric protection is probably still running on your phone... easiest way to defeat it is to install nut's dual recovery, it disables ric on boot and works on locked bootloader:
http://forum.xda-developers.com/showthread.php?t=2261606
There is also a zip you can flash that only disables ric if you have your bootloader unlocked and a recovery in the kernel...can't remember the thread search if you need it.
Edit: SElinux might also make your system read only, if you face this problem either set nut's dual recovery .prop file to keep byeselinux always running, or install selinux mode changer app and disable it when you need.

You Sir, are a GOD to me!!!!
I already had dual recovery installed, but I updated it and problem solved!
Thank you so much for your very able assistance!

@nhpilot43 no problem, just remember something important too, don't install / update busybox from the playstore as it will break nut's dual recovery and everything that comes with it. xzdr has integrated busybox too, you don't need anything else

Will do and good to know!

Related

Archos 50c Neon: Rooted with KingRoot, replaced, but unable to use SuperSU

Hello Archos community,
I have bought the new Archos 50c Neon in early July, because of its nice price-performance ratio and the fact that it runs Android 4.4.2.
I have been able to successfully root it using Chinese "KingRoot", but am looking for an alternative SuperUser app. I already own a license of SuperSU Pro (which I am using for my tablet), but it turns out that the current versions of SuperSU (both 2.46 and 2.49) currently cause a crash when calling "su" from adb - seemingly because the Dalvik VM is unable to instantiate class "android.os.Environment" from SuperSU code when SuperSU wants to display its UI dialog that asks for permission. For the detailed issue description, please see here:
My thread in XDA SuperSU forum: Crash when trying to run su
Unfortunately, Chainfire (the author of SuperSU) from his signature is "away for most of the summer", and I will wait until he's back and then point him to this issue one more time.
In the meantime, I have created a script to successfully remove all remains/remnants of KingRoot (after successful rooting with it) and replace it by Koushik Dutta's OpenSource Superuser package:
https://play.google.com/store/apps/details?id=com.koushikdutta.superuser
http://www.koushikdutta.com/post/superuser
I have attached a ZIP file to this post that includes everything needed to do so - here are the instructions:
Please note that I do not take any responsibilities in case you brick your device, and also note that you void your warranty for the phone when rooting (these should be clear anyway)!
Reset your Neon 50c to factory settings (optional, might be needed in case you run into issues otherwise when removing KingRoot)
Unzip the attached ZIP and copy its contents to the root of the internal SD storage on your 50c Neon (directory /sdcard)
Use the included kingroot_4.0.0.apk to root your phone (allowing to install apks from untrusted sources)
Then, from your PC, open an "adb shell" to your device (you need to activate developer mode and USB debugging in order to do so)
From this adb shell, execute "su" and allow this root access through the KingRoot dialog on your phone. You now have a root shell on your phone.
Open a second adb root shell in the same way to not become stuck in case something goes wrong with the first one
In the first adb root shell, cd to /sdcard and execute my script in the following way:
Code:
cd /sdcard
sh -x ./kingroot_2_koush_su.sh ./busybox ./superuser.zip
and while it is running, press enter three times when "ps | grep king" and "ps | grep k_" show whether there are still processes running on your device that are related to KingRoot. General rule here is: When there are processes still running for the first ("ps | grep king"), something went wrong and KingRoot uninstall will most probably fail, while the fact that only processes matching the second ("ps | grep k_") are found, is normal and will NOT stop the script from working successfully.
When the script has finished, your phone will do a "soft reboot" (from killing zygote). You should do another explicit "hard" reboot afterwards anyway before trying to use the newly installed Superuser package.
I have run this script myself on my device, and am pretty confident that after the script has run successfully, there are no remains/remnants of KingRoot left on my device. The Open Source Superuser app by Koushik Dutta runs without any issues.
Hope this helps - and am still looking for some help with why SuperSU crashes on the 50c Neon although it seemingly has been installed properly...
Best regards,
awl
Great work, thank you very much for sharing this. :good:
I have just successfully followed your instructions and they worked for my new Archos 50c Neon as well.
Just one remark concerning the Kingroot (as the app was confusing me with Chinese that I could not read): Make sure to turn your wifi on before you start Kingroot, otherwise the app won't do anything.
And now my questions:
Do you by any chance know if there is a custom recovery available for the Archos 50c Neon? I haven't found any.
Have you written a debloater script which uninstalls all uninstallable apps?
do you have a custom recovery for this phone as I cannot get the su to up date without it restarting into recovery for the clockwork mod superuser. I have got root but only if i set supersu to grant rather than prompt but this isn't a very secure way as you said the su binary is there but the system isn't allowing the prompt.
Da5t3rati0n said:
do you have a custom recovery for this phone as I cannot get the su to up date without it restarting into recovery for the clockwork mod superuser.
Click to expand...
Click to collapse
AFAIK there is no custom recovery for this phone. I don't own it any more, it had too many weak points, such as most promintently speech quality/microphone and frequent hangups or no sound for one party during 3G telephony.
Sorry & best regards,
awl
awl14 said:
AFAIK there is no custom recovery for this phone. I don't own it any more, it had too many weak points, such as most promintently speech quality/microphone and frequent hangups or no sound for one party during 3G telephony.
Sorry & best regards,
awl
Click to expand...
Click to collapse
Yes first thing I noticed about this phone was the call quality haven't had any dropped calls though also the touch screen is awful only 2 touch. Reasonable hardware though CPU is a spreadtrum 1.2ghz a7 quad core so runs cooler and more energy effient than the a9 with a mali400 mp2 twin core GPU runs Asphalt8 on decent settings and good frame. But sadly let by the touch screen as for SuperSU it roots the phone and if set to grant, root programs run so the problem is with the prompt not being allowed to show. I'm thinking this is more Google security than anything.
Sent from my Bush 5" Android using XDA-Developers mobile app

No R/W on Stock Rooted 5.1.1 (Unlocked Bootloader)

As the title says, I have no write access in device root. I am running stock 5.1.1. SuperSu installed and working.
Would sure appreciate some help. Being half-rooted is not acceptable.
Thanks in advance
Problem is fixed. Bad BusyBox install it seems.
Hi, i have the same problem.
For example, im not able to make the tablet adfree with the rom-toolbox.
The romtoolbox errormessage is "can not remount read/write"
Use NextApp SDfix
The romtoolbox still reports "faild mount read/write"
The Micro-SD-Card is writeable.
(sorry for my english)
SeLinux is set as enforced. You need to set it to permissive. Google up tools and means for doing that. I often use paragon ntfs.
Tanks a lot!
I didnt found a tool, but i can Set it temporarly with a terminal emulator:
Su
Setenforce 0

Root... but not root?

Hi everyone. I have a tablet from a famous argentinian whose devices quality is not the best (Noblex). This tablet has an Intel redhookbay SoC (x86). I tried to root it with Framaroot with no success. I also tried with apps like Kingo Root and Kingroot (disgusting, but I had to try them to see if they worked). Nothing worked. So I looked for a custom recovery and I found this thread which helps redhookbay users having a temp recovery like "above" the fastboot menu. In my case, CWM didn't work because power button selected the recovery item, but also fastboot menu item, so it always rebooted. TWRP didn't work either because touchscreen doesn't seem to work when I choose it. So and idea came to my mind: I could make an OpenRecoveryScript to make a backup and flash SuperSU.
I used adb shell to see if I could write a file in cache partition without being root. Of course, it didn't work, but then I typed "su" because it came to my mind, and boom! I was root, and even without any prompt that asked me if I wanted to grant root access for adb. So I thought "great! I'll remount partitions as rw and update the binaries to SuperSU ones". But, I had a little problem called Operation not permitted. Yup, I couldn't remount because I'm not allowed.
So, what can I do in order to root this thing? I read something about adbd Insecure, but I don't have any app that manages root to use this.
I don't know what to do, please help me.
Thanks in advance.

ROOT BlackPhone 2 (BP2) with Sudo SU

Hello community,
I'm new in the forum, It's 2 days I'm fighting with this problem: I want to root my BlackPhone 2 using TWRP and SuperSU (I think that this is the only method that works with BP2, since KingoRoot and others are patched for security)
I flashed the recovery TWRP, then I tried the following SuperSU versions:
SR3-SuperSU-v2.79-2017...zip
BETA-SuperSU-v2.74-2.zip
SuperSU-v2.79-2016...zip
UPDATE-SuperSU-v2.79-2016...zip
None of them works, in TWRP all goes OK, no errors and no warnings, but then when I open SuperSU apk it says "There is no SU binary installed... ...If you just upgraded to Android 5.0".
This is really crazy because I'm running on Android 6.0.1 (Silent OS 3.0.7) and using Total Commander I can see /su directory.
Using a root checker app it says that my device is not rooted, but the SU binary is present and also the busybox one.
The Silent Circle's Security Center in their "Privacy Meter" app warns me "Security alert, active root access detected! ...."
For install TWRP I had to switch these things on in Developer Options: "OEM unlocking", "USB debugging", then I enabled installs from unknown sources by ADB and SD card.
Any help will be great, Thanks guys
EDIT: sorry for the Thread title, I can't modify it, it should be SuperSU not sudo su (too much linux)
But did you try sudo su? Install a terminal emulator and cd to the xbin directory. FYI, the SU directory is there by default afaik.
RAZERZDAHACKER said:
But did you try sudo su? Install a terminal emulator and cd to the xbin directory. FYI, the SU directory is there by default afaik.
Click to expand...
Click to collapse
Oh I didn't knew that the /su dir was there by default sorry. I downloaded the terminal emulator and "sudo" is not a valid command, when I type "su" it says nothing, and "which su" tells "/su/bin/su", but it does nothing apparently.
If it's not rooted at all how can Silent OS say "root access active detected"?
I just installed SuperSU zip via TWRP, there are other things to do in order to maintain root privileges?
PS: another RootChecker app detects that busybox is installed in /system/xbin/busybox with version 1.13.3, I don't know how that happened, busybox is installed by SuperSU?
Unfortunately they are in the same situation. But I admit that I did not install the TWRP permanently due to a possible bootloop phone. Has anyone found a solution to the root?
i have same problem i want unlock bootloader .............need help plz!!!
Koskha said:
Oh I didn't knew that the /su dir was there by default sorry. I downloaded the terminal emulator and "sudo" is not a valid command, when I type "su" it says nothing, and "which su" tells "/su/bin/su", but it does nothing apparently.
If it's not rooted at all how can Silent OS say "root access active detected"?
I just installed SuperSU zip via TWRP, there are other things to do in order to maintain root privileges?
PS: another RootChecker app detects that busybox is installed in /system/xbin/busybox with version 1.13.3, I don't know how that happened, busybox is installed by SuperSU?
Click to expand...
Click to collapse
After you flashed the su zip, did you get the superuser app?
Blackphone 2 bootloader
RAZERZDAHACKER said:
After you flashed the su zip, did you get the superuser app
phone not flash with any file.....devices lock ....need to bootloader unlock.
Click to expand...
Click to collapse
A litle guide to increase bp2 performance
https://forum.xda-developers.com/an...e-make-bp2-t3735815/post75218344#post75218344

Zebra TC56 Android 6 Marshmallow superSU

Hi,
I need to root a Zebra TC56 to install some other apps that require rooted Android. There is very little information in the way of rooting the Zebra TC56. I 'm pretty set on using Chainfire's superSU, but I cannot find any information on whether it will work on this hardware. Does anyone know if the superSU works on this device with Android 6? If not, is there another Root Tool that will work.
Any advice appreciated.
THANK YOU!
VK
1. Install BusyBox applet-suite what contains the SU-binary
2. Install latest SuperSU APK
jwoegerbauer said:
1. Install BusyBox applet-suite what contains the SU-binary
2. Install latest SuperSU APK
Click to expand...
Click to collapse
BusyBox installed fine.
SuperSU will not install all the way. When I select to root, it says root not detected and then, "How to Root", which launches my browser to a site that no longer exists.
Now what?
Thank You!
edit: Still stuck at this point. I read about TWRP, KingoRoot and some other random apps. I cannot brick this touch computer; it is $1600; that would be a very expensive brick. :crying:
So, I have no idea if I am right, but maybe I need to open the terminal emulator and "su" install the SuperSU apk. But I have no idea and I don't want to experiment. Hopefully, someone can help me.
@vidarr_kerr
Don't confuse things:
SU is the super user who unrestrictedly can perform any operation on Android OS. As soon as SU got installed Android is rooted! Again: BusyBox you successfully installed contains the su applet.
SuperSU is merely a root-manager app: it maintains a database where is stored what app can act as super user. SuperSU app doesn't grant super user rights.
BTW:
TWRP has nothing to do with rooting device's Android, as this is also true with Magisk.
The device is still not rooted after the "BusyBox Installer (No Root)", from your link, was installed.
I installed BusyBox, I followed the directions to then copy a command, then open a terminal, paste the command in and hit enter, then nothing happened. SuperSU was not installed with it.
So, as you told me, I then installed the latest SuperSU APK from your link. It says it installed, but when I run it, it says root not detected and then has a link named, "How to Root", which launches my browser to a site that no longer exists.
I followed what you said. Where did I go wrong?
Thank You!
You didn't get it. Sorry to say this.
jwoegerbauer said:
You didn't get it. Sorry to say this.
Click to expand...
Click to collapse
Didn't get what?
I installed the BusyBox you gave me the link to.
I semi-installed the SuperSU you gave me the link to.
SuperSU did not fully install, because the Android is NOT rooted..
BusyBox had no SuperSU as part of it --the file you said to use even says "BusyBox Installer (No Root)".
(That should have tipped me off right away you had no clue, but I thought maybe you knew something.
So, you gave me the links for both of those files and it doesn't work.
I don't think you have any idea what you are doing; and shouldn't be explaining things you do not understand.
The "no root" BusyBox, does not include SuperSU.
If it did, why did you give me the link for the separate SuperSU file?
All the "no root" BB did was install a terminal emulator (with no su abilities).
The SuperSU didn't install, because the Android is NOT rooted.
If the Android WAS rooted, SuperSU would run and allow me to grant su privilges to the apps that require it to work.
You basically just wasted my time.
I would have just said "thank you" and moved on, but you are rude.
You don't know what you are talking about either.
Hopefully, this will help others, to not do what you say to do.
vidarr_kerr said:
Didn't get what?
I installed the BusyBox you gave me the link to.
I semi-installed the SuperSU you gave me the link to.
SuperSU did not fully install, because the Android is NOT rooted..
BusyBox had no SuperSU as part of it --the file you said to use even says "BusyBox Installer (No Root)".
Click to expand...
Click to collapse
You're right: BusyBox (No Root) doesn't come with SU-binary. Wasn't aware of this. I misinterpreted APK's title. Pitty.
ERRARE HUMANUM EST ( To err is human ).
Installing BusyBox containing SU-binary requires your device's bootloader got unlocked before, because Android's /system partition gets modified. Hence manage to unlock device's bootloader as 1st thing of all things. Good luck.
DL BusyBox latest: https://github.com/meefik/busybox/releases/download/1.31.1/busybox-1.31.1-46.apk
My last 2 cents here: SuperSU and SU binary are totally different things.

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