System remount?

[blackknightavalon]

Has anyone been able to remount /system as rw? FX File Explorer says it's successful but then switches automatically back to read only

 

[ichimei]

I'm also trying to remount /system as rw. It seems that the patched Magisk boot file provided in this post preserves dm-verity, which disallows system partition modifications and makes it unable to remount as rw. The mount command will complain that '/dev/block/dm-8' is read-only.

Having tried repatch the boot image with unchecked 'preserve AVB 2.0/dm-verity' in the Magisk app, but resulted in a crash during boot (QUALCOMM CrashDump Mode). Can succesfully boot with that option checked. It would be fine if dm-verity can be disabled in other ways.

 

[Josh McGrath]

I'm also trying to remount /system as rw. It seems that the patched Magisk boot file provided in this post preserves dm-verity, which disallows system partition modifications and makes it unable to remount as rw. The mount command will complain that '/dev/block/dm-8' is read-only.

Having tried repatch the boot image with unchecked 'preserve AVB 2.0/dm-verity' in the Magisk app, but resulted in a crash during boot (QUALCOMM CrashDump Mode). Can succesfully boot with that option checked. It would be fine if dm-verity can be disabled in other ways.

Have you tried fastboot?

fastboot oem disable_dm_verity

If it causes problems, replace disable with enable to get back to current state, but it shouldn't

I don't like to disable dm verity for performance concerns, but for now it would be okay until a new root method comes out

 

[blackknightavalon]

Have you tried fastboot?

fastboot oem disable_dm_verity

If it causes problems, replace disable with enable to get back to current state, but it shouldn't

I don't like to disable dm verity for performance concerns, but for now it would be okay until a new root method comes out

FAILED (remote: 'unknown command')
Finished. Total time: 0.004s

It was worth a shot

 

[Josh McGrath]

It was worth a shot

Are you able to flash with TWRP by any chance?

 

[blackknightavalon]

Are you able to flash with TWRP by any chance?

TWRP doesn't mount /system at the moment on anyone's devices

 

[WillSmith89]

Correct me if I'm wrong,but devices released with Android 10 out if the box will not allow making changes to the system( i.e it will remain read-only only)

 

[blackknightavalon]

Correct me if I'm wrong,but devices released with Android 10 out if the box will not allow making changes to the system( i.e it will remain read-only only)

That's what I'm working on. I tried a workaround but got this

mount -o rw,remount /
'/dev/block/dm-8' is read-only

I'm trying other things as I think of them, and I have a few ideas

 

[Josh McGrath]

That's what I'm working on. I tried a workaround but got this

I'm trying other things as I think of them, and I have a few ideas

Do you know if stock Oneplus recovery will flash unsigned zips?

 

[blackknightavalon]

Not sure. Got one I can flash via Fastboot?

 

[Josh McGrath]

Not sure. Got one I can flash via Fastboot?

Maybe, let me go through my old files cause I think I have dmverity disabler for stock recovery zip

 

[blackknightavalon]

Okay, I'm getting closer. Typing in

mount -o rw,remount /system

as usual gives me the "not in /proc/mounts" thing, but typing in

mount -o rw,remount /product

gives me the "/product is read only" error.

What we need is a kernel that'll let us mount /product in order for us to REALLY start playing with this device
------------------------------------------------------------------------------------
Okay, here's the Terminal results of my latest attempts. Maybe someone can have better luck than me

OnePlus7T:/ $ su
OnePlus7T:/ # mount -o rw,remount /sbin/.magisk/block/system_root
'/sbin/.magisk/block/system_root' is read-only
OnePlus7T:/ # mount -o rw,remount /dev/block/dm-11
'/dev/block/dm-11' is read-only
OnePlus7T:/ # mount -o rw,remount /dev/block/dm-9
'/dev/block/dm-9' is read-only
OnePlus7T:/ # mount -o rw,remount /dev/block/dm-8
'/dev/block/dm-8' is read-only
OnePlus7T:/ # mount -o rw,remount /dev/block/dm-8 /system
mount: '/system' not in /proc/mounts
1|OnePlus7T:/ # mount -o rw,remount /dev/block/dm-8 /system/product
mount: '/system/product' not in /proc/mounts
1|OnePlus7T:/ # mount -o rw,remount /product
'/dev/block/dm-9' is read-only
OnePlus7T:/ # mount -o rw,remount /super
mount: '/super' not in /proc/mounts
1|OnePlus7T:/ # mount -o rw,remount /product
'/dev/block/dm-9' is read-only
OnePlus7T:/ # ls -l /dev/block/by-name/super
lrwxrwxrwx 1 root root 16 1970-01-12 02:43 /dev/block/by-name/super -> /dev/block/sda15
OnePlus7T:/ # mount -o rw,remount /dev/block/sda15
mount: '/dev/block/sda15' not in /proc/mounts
1|OnePlus7T:/ # mount -o rw,remount /dev/block/by-name/super
mount: '/dev/block/by-name/super' not in /proc/mounts
1|OnePlus7T:/ # mount -o rw,remount /init
mount: '/init' not in /proc/mounts
1|OnePlus7T:/ # mount -o rw,remount /system/etc/init
'/sbin/.magisk/block/system_root' is read-only
OnePlus7T:/ #

 

[blackknightavalon]

Okay, I have an idea but I'll have to wait for the next official build to test it

 

[bomblader]

Any news on this? Really want to uninstall Google Pay and install an older version of it.

 

[Josh McGrath]

Okay, I have an idea but I'll have to wait for the next official build to test it

I'm not much help but wanted to throw some ideas out thee. have you also tried changing read/write via fastboot or terminal emulator with (I think) chmod 777?

 

[blackknightavalon]

I'm not much help but wanted to throw some ideas out thee. have you also tried changing read/write via fastboot or terminal emulator with (I think) chmod 777?

Tried it through Terminal commands via Terminal Emulator AND ADB. Haven't tried it through fastboot. I'm downloading the OTA now (been in Florida on vacation, leaving back for NYC this afternoon)

 

[thanasis12.]

I tried to change font, but I cant remount system. any idea? ( the mogule font_changer has remove of programmer, my device is root without twrp.

 

[EugenStanis]

You cant mount system as r/w because android 10 is read only