Originally posted by purej
Thanks for your reply, rylan76
The server was very slow. I tried "init 6" to restart it but it didn't work.
Then I switched off the power and started it again.
I can boot the server with a rescue disk, so I think the harddisk is fine.
Are there any methods, instead of formatting and reinstalling?
That switchoff probably was the thing that crippled it - what filing system were you using? If it was ext2 you are out of luck - with older RedHat versions I more than once ended up with an inconsistent filing system after a "hard" shutdown - which neccessitated a complete reformat and reinstall. It is much better to use a journalling filesystem like ext3. If you were, in fact, using ext3 already, you're just out of luck.
As for fixing the problem, you might try to run
after the rescue disk has booted up and see if you can somehow fix something - no idea how, or where though. Usually it is just better and less effort to just reformat and reinstall. We used to get errors of this type in SCO unix at work as well, and there was -no way- to fix them once they began. It probably requires a Linux systems programmer or somebody who knows the particular filing system from the inside out.
Hope you've got some backups!
Seriously, the only course of action I could advise is to reformat, reinstall, and recover from backups. It will be quicker and waste less time than trying to reconstruct the disk by hand, which is well-nigh impossible IMHO.