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[System App Help] Apps in priv-app not showing in Android System

For clarity sake here is what im trying to do.
take camera folder that has camera.apk in it with camera.odex in the arm64 folder and move it into my system/priv-app/ that should hypothetically install it as a system app after a reboot.
Im doing this on a nexus 6p with android N preview 2 and the only file explorer that mounts the system as R/W is FX File Explorer (While in booted system; i have full control via TWRP though)
I do reboot because i know 5.x+ requires reboots between system changes.
I have done this via FX and is stays there even after reboots. Ive done this via TWRP and stays after reboot.
my issue is that after a reboot, the camera app does not show in the system. Its not is the app list in settings and i cant find any instance of the android system recognizing it.
I have this issue no matter what the app is unless i install the app as a non-system app first then manually create its folder system in system/priv-app/ and copy the apk to its newly created folder then uninstall the non-system app version and reboot. But i cannont do that with every app. Some have to be system apps from the beginning or they refuse to install (as expected)
Any help on this will be hugely appreciated!

Any ideas guys?

Same problem on my Nexus 5 with Nougat rom. I hope someone can help.

User App To System App in Marshmallow

Hi, I cannot convert an User App into a System App in Marshmallow.
Moving the Folder of the App from Data/App to System/Priv-App OR System/App does't work.
So I would know if there is a solution?
I tried also Link2SD function to Convert the APP into a System One but nothing.
It just dissapear like with moving the folder.
Permissions are set-up correctly.
Thanks.
Sent from my SM-G900F using XDA-Developers mobile app

Mount /system to RW

Well system must be in R/W to move the stuff. So can provide me a real help someone?
Sent from my SM-G900F using XDA-Developers mobile app

Jv1391 said:
Well system must be in R/W to move the stuff. So can provide me a real help someone?
Click to expand...
Click to collapse
Use this app to mount /system:
https://play.google.com/store/apps/details?id=com.blogspot.superthomaslab.mountsystemrorw
Use this root explorer:
https://play.google.com/store/apps/details?id=com.jrummy.root.browserfree
It's recommended to have busybox installed.
Or use TWRP:
Boot to recovery->go to mount->check /system and reboot

It doesn't work. I think is a limitation of Marshmallow Permissions.
The only way I found is using Lucky Patcher and selecting the option "Rebuild and install" to Install the file .APK as System from the beginning. Otherwise it doesn't work. Anyway thanks.
Sent from my SM-G900F using XDA-Developers mobile app

I had the same problem today.
I think I found solution !
I think you flashed wrong supersu version.
Try to flash this through twrp:
https://download.chainfire.eu/924/SuperSU/BETA-SuperSU-v2.68-20160228150503.zip
After that go to es explorer enable root explorer. Next, click on root explorer and choose mount r/w check r/w on /system

Jv1391 said:
Hi, I cannot convert an User App into a System App in Marshmallow.
Moving the Folder of the App from Data/App to System/Priv-App OR System/App does't work.
So I would know if there is a solution?
I tried also Link2SD function to Convert the APP into a System One but nothing.
It just dissapear like with moving the folder.
Permissions are set-up correctly.
Thanks.
Click to expand...
Click to collapse
Hi I have the solution-install a user app(don't move to SD) ,in es file manager mount system to rw ,copy whole folder of that user app from /data/app to /system/priv app ,now set permissions to folder similar to that of other folders present there ,now inside the folder set permissions to apk as rwrr (don't touch other folders present there). ,mount system ro ,now uninstall that user app from launcher and finally REEBOOOOT!!!! DONE

Can't install any app as a system app.

Hello
I own a Mi A1 smartphone currently running on Nougat 7.1.2. It is rooted. I am unable to install any app (for example:- Fake GPS) as a system app.
I have tried many methods. Using ES Explorer, Root Explorer, Link2SD, flashing app zip from TWRP recovery and lukcy patcher. But none of them are working. (Although ES Explorer did the job with some manual settings but the app didn't work as it was supposed to)
I am getting the following errors.
Link2SD - FAILURE - mount: 'rootfs';>'/': No such device
Lucky Patcher - Error: there is not enough space within the system partition to move the application (although I have 126 MB free)
TWRP - installs successfully but app never shows.
Please help me

could not remount /system

Guys, i am on stock os, 7.0 , recently flashed magisk for systemless root and when i tried to use app mover to move some apps to system, i get error as could not remount/system. Tried supersu root as well but same result, im a newbie here. please help Used both Vegito and Ex kernel too. but i get the error everytime. But root checker shows i have root.

You could try the Magisk module named "App Systemizer". It can convert user apps to system apps, but systemlessly.

thorin0815 said:
You could try the Magisk module named "App Systemizer". It can convert user apps to system apps, but systemlessly.
Click to expand...
Click to collapse
Thanks, Is there a way to edit system files , like modifying host file ? It seems i have been using system root all these days. Is it still available ?

Moving app to /system not working

Hi.
I am new to this rooting and stuff. I got my pixel 4 rooted with magisk manager. (To activate motion sense). But now i am trying to convert user app to system app And it doesn't work. I have tried link2sd,system app mover even use fx file explorer to paste the app in /system/app. It just doesn't work.
Also tried with magisk module systemizer, the app get transferred to system but that app only crashes.
What to do? Am i doing something wrong?

spitfire700 said:
Hi.
I am new to this rooting and stuff. I got my pixel 4 rooted with magisk manager. (To activate motion sense). But now i am trying to convert user app to system app And it doesn't work. I have tried link2sd,system app mover even use fx file explorer to paste the app in /system/app. It just doesn't work.
Also tried with magisk module systemizer, the app get transferred to system but that app only crashes.
What to do? Am i doing something wrong?
Click to expand...
Click to collapse
I can't say anything about the mentioned magisk module because i don't use it.
But i think your system is ready-only as it is by many other phone nowadays and that is probably the problem. For example i can't modify system on my pixel 4 xl because it is mount as read-only (and i have installed Magisk, too)
That's the main reason why Magisk is the root tool nowadays: it works systemless so it doesn't need to touch the system partition.
I know some apps could mount the system as read-write in the past and i think adb could do this too theoretically.
But i can't give you detailed steps because i didn't need to mount my system as read-write in the past.