On 2021-12-29, Rainer Dorsch wrote: > Am Montag, 27. Dezember 2021, 18:22:43 CET schrieb Vagrant Cascadian: >> If you can insert the microSD into another Debian machine, you can get >> the UUID by looking in /dev/disk/by-uuid/ to find the matching device >> or: >> >> lsblk --fs /dev/DEVICE >> >> It might be possible to discover from u-boot as well, but I forget off >> the top of my head. > > There is > > => part uuid mmc 1:2 > 8ad3fb70-02 > => part uuid mmc 1:3 > 8ad3fb70-03 > => > > but "root=UUID=8ad3fb70-03" is not working for mounting the rootfs. > > In the bullseye installation, there is also a variable defined finduuid > > finduuid=part uuid mmc 0:1 uuid > > which is even called by bootcmd, but I am not sure if that is doing anything > useful. That *may* be a partition UUID, rather than a filesystem UUID... initramfs-tools 0.121 and newer supports using root=PARTUUID=... You can see the available partition uuids on linux in /dev/disk/by-partuuid/ live well, vagrant
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