Repair defect SD-Card partition (or: how to move files from a broken SD installation to new SSD installation)

Installation
1

Hi, my HA installation on SD broke due to a powerloss of my Raspberry Pi 4. The RPI boots but cannot start Docker daemon and on a attached monitor tells about
“(mmcblk0p8): write access unavailable, cannot proceed (try mounting with noload)”

I can access the SD card and also the partition /dev/mmcblk0p8 (and maybe others) where i found the data which is usally mounted unter /mnt/data/supervisor where i think most of my setup is contained. But i need some idea of how to move all my configs to a fresh installed HA on SSD (yes, i decded to switch to SSD as i don’t trust SDCard anymore…)

I have several integrations added, like ESP and Z2M, which i hopefully don’t loose.

Any suggestions?

2

The simplest way is to restore onto the new SSD from a backup - have you got a recent one?

3

I managed to clone the SD card onto a new one and this at least made it boot again! Yes, doing a backup now, create a new HA on SSD and restore the backup would be my plan now.

BUT - my Zigbee nodes are all “offline” now, expect of one TRV and i don’t know why?