1. Boot server/VM in BIOS mode and change Boot Mode to CD
2. Boot server/VM from Linux CD
3. Hit F5 to enter Rescue Mode.
4. Type: Linux Rescue (at prompt)
5. When asked to mount the filesystem to /mnt/sysimage – choose SKIP.
6. At root prompt #: type fdisk -l to display partitions.
Usually /dev/sda1 is boot, /dev/sda2 is swap, and /dev/sda3 is / (verify)
7. To fsck /, type:
e2fsck -f /dev/sda3
This will scan and repair any filesystem errors.
8. Unmount boot CD.
9. Type: “reboot” at system prompt.
10. System should boot normally.