As stated in the title, my question is if there is any way to install the F-Droid Privileged Extension as a system app to a standard /e/ OS installation without any third-party modifications (e.g. TWRP, Magisk, etc.) – and if so, how to do it. So far, I haven’t figured out a way that works.
I tried booting into recovery mode and selecting “Apply update → Apply from ADB” and installing the F-Droid OTA .zip using
adb sideload, which does copy the files to
/dev/block/by-name/system_b. However, when I reboot normally after that and look at the file system, none of the previously copied files show up in
/system/app/. Back in recovery mode, they’re still there, but in “normal” mode,
/system/ remains unchanged. Is there some way to make this work or is it required to install something like TWRP?
(My device is a Fairphone 3, if that matters.)