I would use a live cd to check that one. you may have a severe enough 
file corruption that using even single user mode might encounter 
problems. after you check and certify the system disc has no problems, I 
would start testing the networking hardware using the same disc. if it 
runs into problems, you may have to replace hardware (if a surge made it 
through the protector, then its likely your supply is flaky and the MB 
may have also taken the hit ).

I have had to deal with this scenario more often than once. When a Power 
strip surge protector finally buys it, it tends to leave your system 
exposed for a brief period of time during the surge that blew to the 
protector. This can have unanticipated effects on your hardware.

anyway, I hope its nothing more serious that an easily corrected filesystem.



On 7/26/10 11:38 AM, Bryan O'Neal wrote:
> So I run a fedora based server in my house. Recently I had the local
> surge suppressor tip out and drop all my boxes. The server had wired
> problems ever since. I can not log into a local X session (it hangs
> trying to load a desktop) and I can not read files from the samba
> server (I can see the files but not access them). I can login over ssh
> and all the files are there.  So I was thinking I would just run a
> quick fsck and see what turned up before doing a tar and export of the
> files and a wipe and rebuild of the server.
> However this is where I ran into trouble. i can get into single user
> mode no problem but I can not unmount the main partition? umount
> /de/VolGroup00/LogVol100 -f just returns - I am way to busy. But the
> only things I can see running are disk and council related related
> processes. lsof returns the stranded stuff /, /sbin/, /dev/counsole/,
> proc[#]/exe/, etc.
>
> But I do see lib64/ld-2.9.so, /lib64/libc-2.9.so,
> /usr/lib64/libplybootsplash.so.2.0.0,  and
> /usr/lib64/libpng12.s0.0.37.0 as well - not sure why those files are
> open in single user mode - but in any case I can not umount the volume
> with -f so I can fschk.ext3 it Suggestions?
>
> And yes the drive is encrypted using the red hat / fedora standard
> encryption. This is why I used fedora at the time and not cent OS for
> this server, it made drive encryption very easy and reliable.
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