Need help with mounting system - Honor 8 Questions & Answers

Hello
I have honor 8,android 7.0 and emui 5.0, I have twrp installed and rooted, but when I go twrp and check box system(to mount it), the I reboot and go back to twrp and look at mount and on system it automatically unchecks box, help please, I cant use some root apps becuase of that, THANKS

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Can't enter TWRP screen

Hello All.
I have TWRP installed on my Nexus 5 D820 device.
But averytime I try to boot into the recovery mode, I am getting the stock android recovery instead.
My device is rooted of course, my android version is 6.0.1.
How can I go to the TWRP screen?
Thank you!
Did you enable the System read only option?
System read only option: Devices that ship with 5.0 and higher as their initial OS are using block level OTA updates. With this style of OTA update, the update script checks to see if the system partition has ever been mounted read/write. Further, the script also usually runs an SHA sum of the entire system partition to detect if any changes have been made. If any changes have been made, the OTA update will refuse to install. Since not all OEMs and devices have factory images available, we have created a new feature in TWRP that detects if the system partition has ever been mounted read/write. If not, you will be prompted asking if you want TWRP to mount system as read/write. If you choose not to allow TWRP to mount as read/write, TWRP won’t prompt to install SuperSU and TWRP won’t try to patch the stock ROM to prevent TWRP from being replaced by stock recovery. The goal of this option is to hopefully allow the user to make a raw system image backup that they can use to get back to a state where they can take OTA updates again.
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Primokorn said:
Did you enable the System read only option?
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Click to collapse
Thank you Primokorn.
No, I didn't enable this setting. I rooted my phone using NRT toolkit, which performed the root quite automatically.
Can I do it now somehow?
Remove .twrps (hidden) file into /sdcard/TWRP then install TWRP again (using fastboot would be better)
You should see this warning message at first boot. Swipe to allow modifications.
Primokorn said:
Remove .twrps (hidden) file into /sdcard/TWRP then install TWRP again (using fastboot would be better)
You should see this warning message at first boot. Swipe to allow modifications.
Click to expand...
Click to collapse
Well, I have managed to enter the TWRP screen using the fabulous Nexus Toolkit application.
It is a workaround - but at least it worked. I really asked me if to enable read only mode.

Damn guys, please help me [huawei crr-l09]

So, lets start.
I have the mentioned Huawei Mate S, i flashed the TWRP bootloader and just wanted to root my device..
that have i done untill now:
- found a page (cant post the link cause i am new here) to root [search: "huawei-mate-s-root-twrp-recovery-v2-8-7-0/" in google and take the first page to get there (theandroidsoul .com) ]
- downloaded everything mentioned (TWRPand i got the SuperSU-File)
- first i loaded into bootloader, then made a backup of my system.
- then i installed the System again with the SuperSU.zip File
- i tried to boot the system, but it was stuck for 8 hours in the Huawei System Boot Page while i slept
- then i rebooted into the recoverymode of TWRP and restored the system again from the backup, but this time without installing the SuperSU. I could reboot but my phone wasnt rooted, so i tried again:
- this time i just installed the zip-file using the twrp-recoverymode
- didnt work
- and then i think i made a mistake, i tried to do a factory reset but after like 15 minutes i thought it would be stuck and i rebooted
- after the reboot no matter what i did there was always that problem: "E: unable to mount "/cache" "
- i tried a a couple different things and now i am at this point:
-> my android system isnt booting so its stuck in the bootpage
-> i dont have the backup (dont know where it went) anymore so i cant restore with that
-> i cant wipe the /cache cause everytime it says: "E: unable to mount "/cache" "
WHAT CAN I DO? maybe flash a custom rom?
PLEASE HELP, THANK YOU! <3
ccas
edit: phone is listed in pc so i can transfer any files, but its empty, there is only one file called "TWRP"
Flashing a custom ROM may fix it.
If not, I'd try to flash the original firmware. Huawei must have some software available that allows you to do it.

Dilemma: Magisk and Xposed boot loop

Dear all,
I'm in quite a dilemma. I have an FRD-L09 with the following environment:
Oreo Firmware (FRD-L09C432B521)
Unlocked FRD and Bootloader
TWRP 3.2.1 from 7to.cn (the one which can mount /system writable) (this one: https://forum.xda-developers.com/ho...p-ish-twrp-3-2-1-honor-9-running-gsi-t3818442)
I did not go the "Fix DataEncryption" way because, to me, it's pretty convenient that nobody is able to access /data even with TWRP, so if the phone gets stolen, my data is protected
I installed Magisk 17.1 and Magisk Manager which worked perfectly fine.
Then I downloaded and installed the corresponding Xposed Module for Magisk (apparently system-less, so Xposed-Uninstaller.zip doesn't work). This resulted in a boot loop.
I'm not able to suppress Xposed loading with the usual "press a device button many times in a row".
If I uninstall Magisk (i.e. flash stock recovery.img extracted from update.app), the system boots up normally, so it's Magisk+Xposed that causes the boot loop
BUT: Now I'm unable to remove the Xposed module from /data/magisk.img because 1. of course I can't access /data from a booted system without root and 2. I can't access /data from TWRP because I want to leave it protected.
Also, the "Fix DataEncryption" option apparently wipes the /data partition which I'd really like to avoid.
With other TWRP releases, I cannot access /data even after entering my lockscreen PIN or the "default_password" as decryption password, so I'm pretty certain that the encryption key is derived by other means - I think I remember reading that it's stored somewhere in hardware, which is also why, for Custom ROMs, encryption on Honor 8 is always an issue.
So does anyone have any clue how I can either access /data from TWRP while keeping it encrypted, or delete magisk.img via any other way?
I'll be happy about any hint!
EdRoxter said:
Dear all,
I'm in quite a dilemma. I have an FRD-L09 with the following environment:
Oreo Firmware (FRD-L09C432B521)
Unlocked FRD and Bootloader
TWRP 3.2.1 from 7to.cn (the one which can mount /system writable) (this one: https://forum.xda-developers.com/ho...-ish-twrp-3-2-1-honor-9-running-gsi-t3818442)
I did not go the "Fix DataEncryption" way because, to me, it's pretty convenient that nobody is able to access /data even with TWRP, so if the phone gets stolen, my data is protected
I installed Magisk 17.1 and Magisk Manager which worked perfectly fine.
Then I downloaded and installed the corresponding Xposed Module for Magisk (apparently system-less, so Xposed-Uninstaller.zip doesn't work). This resulted in a boot loop.
I'm not able to suppress Xposed loading with the usual "press a device button many times in a row".
If I uninstall Magisk (i.e. flash stock recovery.img extracted from update.app), the system boots up normally, so it's Magisk+Xposed that causes the boot loop
BUT: Now I'm unable to remove the Xposed module from /data/magisk.img because 1. of course I can't access /data from a booted system without root and 2. I can't access /data from TWRP because I want to leave it protected.
Also, the "Fix DataEncryption" option apparently wipes the /data partition which I'd really like to avoid.
With other TWRP releases, I cannot access /data even after entering my lockscreen PIN or the "default_password" as decryption password, so I'm pretty certain that the encryption key is derived by other means - I think I remember reading that it's stored somewhere in hardware, which is also why, for Custom ROMs, encryption on Honor 8 is always an issue.
So does anyone have any clue how I can either access /data from TWRP while keeping it encrypted, or delete magisk.img via any other way?
I'll be happy about any hint!
Click to expand...
Click to collapse
Re-install EMUI 8 with eRecovery.
ThePS4Gamer said:
Re-install EMUI 8 with eRecovery.
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Click to collapse
Yeah, I really hoped I could do something without wiping my /data partition, but I guess I'll have to back up my data and do a factory reset and start over...
PS: eRecovery only offers EMUI 5 on the Honor 8 - EMUI 8 is only installable via HiSuite.
EdRoxter said:
Yeah, I really hoped I could do something without wiping my /data partition, but I guess I'll have to back up my data and do a factory reset and start over...
PS: eRecovery only offers EMUI 5 on the Honor 8 - EMUI 8 is only installable via HiSuite.
Click to expand...
Click to collapse
Solution is simple.
Requirement:
TWRP(which Twrp? honor view 10's. Research how to install)
Solution:
-install magisk pached boot img to ramdisk and twrp to recovery_ramdisk
-boot in Twrp
-then navigate to Advance->Terminal
-write below command:
touch /cache/.disable_magisk && chmod 0777 /cache/.disable_magisk && sync && reboot
Behind the scene: It will enable magisk core only mode, then uninstall malfunctioning modules from magisk manager and disable core only mode, reboot and mtv enjoy
spica1234 said:
touch /cache/.disable_magisk && chmod 0777 /cache/.disable_magisk && sync && reboot
Behind the scene: It will enable magisk core only mode, then uninstall malfunctioning modules from magisk manager and disable core only mode, reboot and mtv enjoy
Click to expand...
Click to collapse
Thank you so much! This was exactly was I was looking for, but googling for "disable Magisk boot" and the like didn't bring up any results other than a bunch of tutorials on how to remove Magisk modules from TWRP with uninmod, which obviously didn't work for me because I couldn't mount /data from TWRP.

Need custom recovery for Mobiistar C1 shine 4g mt 6739 device

Need custom recovery for Mobiistar C1 shine 4g mt 6739 device as m stuck need it urgently and want install android 10 gsi image my device has arm32 a only architecture some suggest me some good and lite gsi images please firstly I need custom recovery twrp please someone help.
It would be hard to support a 2018 device I guess.
[CLOSED] I Will build TWRP for your device!
I wanna build twrp for your device! Pls give info about your device! if possible give stock firmware!
forum.xda-developers.com
i can upload recovery.img file for if you want
its Mobiistar C1 shine (MT6739) arm 32bit a only supported device running on 8.1 i was some how able to root it but unable to install custom recovery if u can please build one for this device i will upload stock recovery.img in few minutes presently its bricked but i will recovery it because i have stock firmware and flashing tool of it....so dont worry just please build a custom recovery like twrp for this device asap if possible
Again: You request a TWRP build for your device going to this thread
[CLOSED] I Will build TWRP for your device!
I wanna build twrp for your device! Pls give info about your device! if possible give stock firmware!
forum.xda-developers.com
any custom recovery bro sorry for that (twrp)
my phone back running again i have flashed it with stock firmware recovery images i have attached earlier and so does phone details screenshot now present situation is 8.1 not rooted stock recovery and firmware so i hope if anyone can help i will be glad
installed latest magisk apk and .zip also by patching boot.img file and flashing that with sp tool to install magisk and got root privilege's
all now i want is proper running and fully functional custom recovery to install custom roms and mods
copvaibhav said:
its Mobiistar C1 shine (MT6739) arm 32bit a only supported device running on 8.1 i was some how able to root it but unable to install custom recovery if u can please build one for this device i will upload stock recovery.img in few minutes presently its bricked but i will recovery it because i have stock firmware and flashing tool of it....so dont worry just please build a custom recovery like twrp for this device asap if possible
Click to expand...
Click to collapse
I am not responsible for any wrongdoing by you. Always have ROM stock files. Any error, install stock recovery again.
First you need to unlock the bootloader if necessary! Unzip file attached and look 2 files.
Then, the installation plan:
0) Flash the TWRP with SPFT or fastboot;
1) Enter TWRP IMMEDIATELY without starting in the system, otherwise TWRP can revert to the stock;
2) When asked to enter the password, select Cancel;
3) Load the file with Magisk (look for any magisk19.zip for TWRP and the decryption file for EXTERNAL memory;
4) Flash Magisk immediately and then install the file data_decrypt_Mobiistar_C1_Shine.zip immediately;
5) Make FORMAT DATA - bottom left button - Type: YES. Go back to the TWRP menu;
6) Make Wipe: data, cache, dalvik (reset to factory settings! Save your data!);
7) Reboot to TWRP (password must not ask);
8) Restart on the system, root is received.
thanks bro for making recovery.img when installing magisk 19.zip its giving error on last step failed to mount /vendor/persist (invalid argument). done
after that i tried to install your data decrypt .zip after one reboot to recovery because i have tried before without reboot recovery once so this time rebooted and installed your data.zip file and again on the last step same error as magisk failed to mount /vendor/persist (invalid argument). done
after that i tried to format by typing yes but again same error failed to mount /vendor/persist (invalid argument).done
just to inform you i have formatted phone from inside by turning it on factory reset but nothing happened....and internal space is not mounting i some how managed to install these things via OTG USB but same error again and again. i am attaching screenshot also which i captured from other phone of mine.
kindly help asap
copvaibhav said:
thanks bro for making recovery.img when installing magisk 19.zip its giving error on last step failed to mount /vendor/persist (invalid argument). done
after that i tried to install your data decrypt .zip after one reboot to recovery because i have tried before without reboot recovery once so this time rebooted and installed your data.zip file and again on the last step same error as magisk failed to mount /vendor/persist (invalid argument). done
after that i tried to format by typing yes but again same error failed to mount /vendor/persist (invalid argument).done
just to inform you i have formatted phone from inside by turning it on factory reset but nothing happened....and internal space is not mounting i some how managed to install these things via OTG USB but same error again and again. i am attaching screenshot also which i captured from other phone of mine.
kindly help asap
Click to expand...
Click to collapse
This is Ok. I made TWRP fast and not remember if the stock partitions has \vendor\persist. So if has that's message is normal. Therefore messages about \vendor\nvdata;nvram;nvcfg is normal too. Very pacth zip files can delete that and the device cannot have IMEI.
First: Is good know the file TWRP worked;
- - You can't install any zip without FORMAT DATA first because FORMAT DATA process can view internal storage. If you don't FORMAT DATA maybe the zip file going wrong with MicroSD & OTG.
In this moment you understand: not use external storage! Put zip in the internal storage an try again.
About MTP: Has anything wrong wiht A8.1 & TWRP. Most devices with A8.1 and TWRP do not have access to MTP. I don't know what happens because I don't know why TeamWin was unable to resolve this.
Now you need put zip with adb command (search how to do) or use sileload on the TWRP.
PS: the picture attached by you show about decrypt. In the first moment you need acept modifications and password you press CANCEL.
lopestom said:
This is Ok. I made TWRP fast and not remember if the stock partitions has \vendor\persist. So if has that's message is normal. Therefore messages about \vendor\nvdata;nvram;nvcfg is normal too. Very pacth zip files can delete that and the device cannot have IMEI.
First: Is good know the file TWRP worked;
- - You can't install any zip without FORMAT DATA first because FORMAT DATA process can view internal storage. If you don't FORMAT DATA maybe the zip file going wrong with MicroSD & OTG.
In this moment you understand: not use external storage! Put zip in the internal storage an try again.
About MTP: Has anything wrong wiht A8.1 & TWRP. Most devices with A8.1 and TWRP do not have access to MTP. I don't know what happens because I don't know why TeamWin was unable to resolve this.
Now you need put zip with adb command (search how to do) or use sileload on the TWRP.
PS: the picture attached by you show about decrypt. In the first moment you need acept modifications and password you press CANCEL.
Click to expand...
Click to collapse
sideload is not starting forgot to mention it i have tried that also booted phone normal put the file in internal but in recovery cant have access to internal storage and yes i have press cancel first and that accepted modification but nothing happened no internal storage access only some how otg thats it i dont know what to do
copvaibhav said:
sideload is not starting forgot to mention it i have tried that also booted phone normal put the file in internal but in recovery cant have access to internal storage and yes i have press cancel first and that accepted modification but nothing happened no internal storage access only some how otg thats it i dont know what to do
Click to expand...
Click to collapse
Okay. Wait my free time and I'll create other TWRP for your device.
Reflash stock recovery if you want & test other file soon.
Update
\|/ Lucky file attached today. So install and test. You can install zip that I put before or Donwload acoording your device cpu has. Read instructions about that again.
Reference Download: https://forum.xda-developers.com/t/...ncrypt-disk-quota-disabler-11-2-2020.3817389/
thanks bro i dont know how it worked but it worked again i have to use otg but this time it worked by downloading different force disabler.zip after that i have formatted the data by typing yes it worked then again i flashed your disabler and new recovery image and phone booted magisk installed phone rooted.....thanks a ton i dont know how to say thanks you but thank you all .
can please suggest me as my mt 6739 is 32arm a only device some light gsi for my device actually i want custom mods in gsi so if u can suggest me which also supports my device i will be very thankful
copvaibhav said:
thanks bro i dont know how it worked but it worked again i have to use otg but this time it worked by downloading different force disabler.zip after that i have formatted the data by typing yes it worked then again i flashed your disabler and new recovery image and phone booted magisk installed phone rooted.....thanks a ton i dont know how to say thanks you but thank you all .
can please suggest me as my mt 6739 is 32arm a only device some light gsi for my device actually i want custom mods in gsi so if u can suggest me which also supports my device i will be very thankful
Click to expand...
Click to collapse
Look correct app to know about your device: Treble Info
You need try install AOSP 8 & 9: https://github.com/phhusson/treble_experimentations/releases
Look "bugs"; try solving; keep your time with experiments.....
After you can try LOS, RRMix, Havoc, etc.....
About this thread/ask help about Custom Recovery so Solved. @jerryhou85
Good Lucky!
system-arm-aonly-vanilla-nosu.img.xz
system-arm32_binder64-aonly-vanilla-nosu.img.xz
bro which file shpuld i download as i told you mine is 32bit arm a only (what is arm first link and arm32binder64 aonly difference) kindly tell.
just to clarify i have download both removed.xy from ext. and flashed from recovery system image but phone goes into fastboot after reboot and when rebooting in recovery at the top it shows no os installed.
lopestom said:
Okay. Wait my free time and I'll create other TWRP for your device.
Reflash stock recovery if you want & test other file soon.
Update
\|/ Lucky file attached today. So install and test. You can install zip that I put before or Donwload acoording your device cpu has. Read instructions about that again.
Reference Download: https://forum.xda-developers.com/t/...ncrypt-disk-quota-disabler-11-2-2020.3817389/
Click to expand...
Click to collapse
Sir it's stuck on password screen touch not working please fix it, I will always be grateful to you.
Honey2012 said:
Sir it's stuck on password screen
Click to expand...
Click to collapse
The first start need choose the CANCEL. I think you not know about TWRP (unofficial) and the process with device/TWRP without encryption/decryption process.
If you want that so send me some device to develop/have the possibility of getting that option.
Honey2012 said:
touch not working please fix it, I will always be grateful to you.
Click to expand...
Click to collapse
As you read, I not have your device in my hands!
Many 32bits and few 64bits devices have problem with touch screen from kernel. That's not my error! It's from device company.
I not know about touch screen work or not since copvaibhav not write about. But I won't fix this. There is also the possibility to use OTG and plug in a USB Mouse to use in TWRP.
There are solutions to fix the touch screen but I don't have the device and I don't have time to do it. Search and you will know. So solve it yourself and thank your self for it.
Ask copvaibhav for more process and using TWRP.

cant access system partition in twrp

hey i want to install a custom rom (gsi) so i hope some people can help me out
main info: i have a ulefone note 9p with mediatek 6762 (runs with mediatek 6765 android scatter) and android 10.
this twrp is a twrp 3.4.0. built for ulefone note 9p i downloaded from here:
unofficial twrp 3.4.0 Root Ulefone Note 9P - unofficial twrp
download unofficial twrp 3.3.1 root Ulefone Note 9P, user who own Ulefone Note 9P can root it by following the below instructions
unofficialtwrp.com
after going to the painful procedure of unlocking bootloader flashing stock and twrp modified rom + rooting the device
i stuck at the procedure to install a gsi image via twrp.
i already know that the device must be unrooted and i have already gained some experiences in flashing the rom
even after a few softbricks, so i will try installing this image with a stock rom and twrp after i received the help i need.
i use a sd card because twrp always disappears when i transfer a file via my phone and i land on stock recovery.
this problem solves when i root my phone via magisk. as i heard flashing gsi's dont work in a heavy modified state (like with magisk),
so a sd card solved this problem to run files on recovery mode without file transfer and rooting.
the problem i have is the following: i followed some instructions saying to wipe some data first in advanced wipe
- also the system partition which is not available. after that tried to install the image directly. as it finds the rom from my sd card i have to select the partition type to flash image
i only have boot recovery and super available but i need the system partition. i looked in the internet further (the painful process) and it gave me some hints going to mount.
there it finds the system partition but when i set a checkmark on it nothing changes, so this hint didn't helped me.
what should i do now? i'm stuck in some dead end and i don't know what to do it seems like this is the only way for me to get it work.
please help.
i think i found something. since my phone is rooted i also tried to delete system apps which also don't work. i tried many system app removers but it always give error. i think the problem lies in permissions that are not given to this phone. how can i get full access to \ system to gain full permission rights? i also have busybox installed btw
You've to mount the /system partition as RW in order to access this storage location.
Example code:
Code:
adb devices
adb shell "su -c 'mount -t auto -o rw,remount /system'"

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