I've been trying to setup Ubuntu server (current attempt with 18.04.3) to receive LUKS passphrase from dropbear, I was mostly successful, but then I tried a few things to get the passphrase from dropbear to unlock also the other LUKS drives that have the same passphrase, long story short, everything went to hell and now when I boot, dropbear ssh client fails with
lastlog_perform_login: Couldn't stat /var/log/lastlog: No such file or directory
lastlog_openseek: /var/log/lastlog is not a file or directory!
sed: /conf/conf.d/cryptroot: No such file or directory
on the host, I get dropped into a busybox shell which doesn't have cryptsetup installed
Things I've tried:
I booted into the installer image in live mode, manually mounted and unlock root partition, then chrooted into it, trying to modify stuff in /etc/initramfs-tools/ and rerunning update-initramfs -u, when doing this I get a line that the /etc/crypttab line that contains the UUID of the root partition is invalid, but is not clear what is the problem, as I haven't changed anything in /etc/crypttab
I've rebooted several times, but no success
I also tried uninstalling cryptsetup and initramfs-tools and reinstalling into the chroot, but doesn't fix anything
I want to setup this again, but not sure how to do this properly from the chrooted environment, what can I try now?
