Hi, I am trying to back up my user data before giving Android 7 a try, but currently stuck on OpenOS 18.04.3 because TWRP is giving me an error when I try to backup data.
The list of partitions shows Data as 0MB in size. Selecting only it and swiping to backup leaves multiple errors on the console mostly saying:
Failed to mount ‘/data’ (Invalid argument)
and one saying:
Failed to mount storage
amongst other lines before it tries to start the backup, then aborts and cleans the backup folder.
What can I do to get this to backup correctly, or am I doomed to risk losing data with an ‘upgrade’?
P.S. is the flashlight reboot workaround nonsense still a thing or fixed yet?
This is the version which is bundled with your version of Fairphone Open OS.
Fairphone’s own TWRP versions bundled with Fairphone’s OSes don’t support encryption up until now (even the TWRP 3.1.1-0 bundled with Android 7 currently doesn’t).
~ # ←[6ntwrp backup SDBOM
Setting backup options:
Compression is on
Digest Generation is off
Updating partition details...
Failed to mount '/data' (Invalid argument)
* Total number of partitions to back up: 3
* Total size of all data: 575MB
* Available space: 8009MB
* Backup Folder: /external_sd/TWRP/BACKUPS/faa9f6a5/1970-01-02--08-41-28
Can not create '/external_sd/TWRP/BACKUPS/faa9f6a5/1970-01-02--08-41-28' folder (Read-only file system).
Failed to make backup folder.
Done processing script file