mysql problem

My server crashed a few days a go and it did not accept the root password i did single mode and reset password and then i could loging as root but network did not worked.
now when ever i run an application i am receiving ls -la /var/lib/
Segmentation fault.
Add/remove software is not working and give me "Unable to tetrieve softwrare information"
MySQL server is not working and i am receiving this error.
when i try to restart mysql i am receiving this error:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111)

any help apprecaited.

 

Seems as if there's something wrong with /var/lib/. What are the outputs of

Code:

mount

and

Code:

df -h

? What's in /etc/fstab?

 

Hi Falko,
here is the output for mount:
/dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/sda1 on /boot type ext3 (rw)
tmpfs on /dev/shm type tmpfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)


and the output for df -h:
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
71G 8.3G 59G 13% /
/dev/sda1 99M 28M 66M 30% /boot
tmpfs

the fstab has these lines:
/dev/VolGroup00/LogVol00 / ext3 defaults 1 1
LABEL=/boot /boot ext3 defaults 1 2
devpts /dev/pts devpts gid=5,mode=620 0 0
tmpfs /dev/shm tmpfs defaults 0 0
proc /proc proc defaults 0 0
sysfs /sys sysfs defaults 0 0
/dev/VolGroup00/LogVol01 swap swap defaults 0 0
/dev/sdb1 /mnt/cle vfat noauto,users,noexec,rw,uid=1000,gid=1000 0 0

By the way our websites are down too.

Thanks

 

I think you should run a filesystem check on / with fsck.ext3. You probably have to boot into a rescue system to do so.

 

Hi Falko,
would you please explain a bit more what command should i run? and how can i boot into a rescue system?

Thanks

 

This should give you the idea: http://www.howtoforge.com/how-to-reset-a-forgotten-root-password-with-knoppix