Server not booting anymore

["Roman Meier" <roman.meier@gismap.ch>]

Hi folks,

I rather seriously messed up my Debian Edu server this morning!

I booted the server using a Debian-liveCd and it seems this did some harm
to grub for reasons unknown since I didn't do any installation or changes
to the system I'm aware of.

Anyway the following shows now when I'm booting:

[...]
/dev/mapper/vg_system-root: clean, 111059/921344 files, 2855990/3050240
blocks
Gave up waiting for /usr file system device. Common problems:
- Boot args (cat /proc/cmdline)
- Check rootdelay= (did the system wait long enough?)
- Missing modules (cat /proc/modules: ls /dev)
ALERT! UUID=378.....b07 does not exist. Dropping to shell!

BusyBox v1.30.1 (Debian 1:1.30.1-4) buil-in shell (ash)
Enter 'help' for a list of built-in commands.

(initramfs) _

Any ideas how to fix this?

Kind regards,
Roman