Well, I never had a desire to go back to Android.
I would like to keep the Android around for dual booting. Just in case and for things like bank TAN generator apps ... while trying to keep the beast in check with firewall, Shelter etc.
Maybe even focus on understanding how to get the dual booting first and then keep UT as the secondary OS on a SD card?
So I did not cared for a backup at all.
With regard to backups I am more conservative, thinking it can never hurt to have one at hand.
I don´t have much knowledge about porting but I think there must be a LineageOS for GS as per my incompetence it is the source for ports.
I thought the ports are based on stock Android or AOSP?
Could not find a LOS for GS290 at their official site or elsewhere.
And there are many ports with status WIP these days for GS290
Could you please help me with a link or two? My search engine did not show me any.
one from postmarketOS
Could not find it there (https://wiki.postmarketos.org/wiki/Devices) ....
and /e/ as well.
...nor any GS290 on https://doc.e.foundation/devices/.
Any hint where you have seen these would be appreciated.
Or are you referring to the build for the Volla phone, since this has the same hardware as the GS290? Found mention of that for pmOS ... might be interesting as a tertiary multi-boot, as it gets a lot of work now due to the Pinephone.
Nope, never used TWRP.
Having that would solve my backup issue. Don't know if I want to try doing a dd.
Like I said, maybe I made factory reset, but I think this was just for the wolf.
If impatience wins I might yet follow in your steps ...
Thanks again and have a nice evening.