Crash after Update - how to use old SSD with new System

Hi there

I (once again) had problems after updating pi-hole via the umbrel-gui.
Update does not complete or umbrel does not restart correctly. Last time I could rescue it, now not, because I wanted to use my backup-image but noticed too late it was also corrupted (don’t know why).
So now I flashed the SD and installed umbrel again (based on ubuntu 22.04; raspi 4B 8G).
But my 2TB SSD with bitcoin-chaindata and other data (pi-hole, rotki, some more) is not recognised by umbrel.
How can I use the SSD and integrate the old filesystem in umbrel?

thx for any help