I've been using Magisk consistently since version 23 across various devices, including Samsung stock ROM and LineageOS on Nexus/Pixel phones, without any major issues. However, I'm encountering a peculiar problem while trying to root my Pixel 9a.

Since a custom recovery isn't publicly available for the Pixel 9a yet, I opted for the 'init_boot.img' patching method. While this approach partially rooted my phone, I'm facing difficulties with accessing system files.

Specifically, apps requiring root access function correctly, but they are unable to write or delete files within these directories:

* /system/app/
* /system/priv-app/
* /product/app/

Root file managers indicate these locations are mounted as RW (read-write), yet the write operation remains blocked. Even using `adb shell su` fails to grant write permissions.

I've tested this on various ROMs, including Google's stock ROM, CalyxOS, and GrapheneOS, but the issue persists. I'm eagerly awaiting a LineageOS ROM release for the Pixel 9a, hoping it might offer a more straightforward solution.

Any insights or suggestions on resolving this system file access problem would be greatly appreciated.

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