urgent! proxmox fails to boot

hi

i did a 1.9 to 2.0 in place upgrade yesterday and everything was fine. shut down server and booted this morning with a grub error 15. boot from proxmox cd and boot using pveboot command. system starts and then fails at fsck error code 8
and asks me to run e2fsck -b 8193 and says a superblock is corrupt. i also get error when i try to mount /dev/pve/root modprobe: fatal: could not load /lib/modules/2.6.32-16-pve/modules.dep.

please help?:(