One Kernal crash in Oracle enterprise LinuxBy W.ZH, Mar 31 2009
Because of a power failer, there is a kernal crash for my Oracle enterprise linux., the system will force boot up in the readonly mode. can not do anything…..
in fact bootup prompt gives a lot error and that
/dev/VolGroup00/LogVol00 need do the manual fsck.
if system auto bootup to the repair model, then can just directly run
e2fsck -y /dev/VolGroup00/LogVol00
After that , system can run..(but with some startX script and files lost.) Not perfect, but runs.
if not boot up in single mode, then you may need to do sth like this:
(a) Take down system to single user mode and unmout system
Following are steps :
=> Use init (process control initialization ) command to change runlevel 1 (singe user mode)
=> Use umount command to unmount /home file system
=> Run fsck using fsck command
Let us say you would like to run fsck on /home (/dev/sda3):
# init 1
# umount /home
# umount /dev/sda
# fsck /homeOR
# fsck /dev/sda3OR
# e2fsck -y /dev/sda3
The -F option force fsck on reboot, login as root and type the following command to reboot and run fsck:
# shutdown -rF now
If you have to do manual fsck, in fact this command can not help you too much.