Possibility of missing 2GB of internal storage space after failed installation attempt of magic_overlayfs module

[rvf16g]

Hello

Thank you for working on this project and providing us means to gain better control of our devices.

I have the following system:
Samsung Galaxy A54 5G
Android 14
Samsung firmware A546BXXU7BXD8 2024-04-15
Magisk 27.0
rooted

Installed magic_overlayfs 3.2.2 module via magisk with the following error:
! Setup ext4 image failed, abort
! Installation failed

Prior to rebooting I disabled the module with the slider and uninstalled it.
Rebooted device with no visible problem.
The /data/adb/overlay file is gone but I think I am missing the 2GB of the ext4 partition.
Is this possible? If so how can I debug this?

Thank you
Regards

[rvf16g]

This was obviously in my imagination.

As seen in magisk-overlayfs-release.zip/customize.sh, if the module fails to install it automatically removes the overlay ext4 file system file /data/adb/overlay (2GB).

In regards to the module installation error, following a thread on XDA forums, I removed the ext4 fs test:

1. backed up my system in case of boot loop
2. unzipped magisk-overlayfs-release.zip
3. edited customize.sh and disabled the test by removing the 2 instances of the following string:
   || ! test_mount_image
4. re-zipped the module tree
5. installed module without any error
6. enabled persistent rw in file /data/adb/modules(_update)/magisk_overlayfs/mode.sh
   export OVERLAY_MODE=1
7. rebooted and I had rw access to the system

Removing the execution of the test function is obviously not a good idea and we need to debug this.