I did some mistake of fiddling with an old VirtualBox installation, trying to build kernel modules. I got rid of dkms. Still, I have the strange problem that the two latest kernel I have results in emergency mode, while the third one boots succesfully.
yield emergency mode, while
Upon advice I saved the journal file, see https://pastebin.com/SB1JzBcS
Someone spot a failing
/dev/sdb1 but when I booted properly, fsck found it right.
What can cause this error?