Cannot run fsck.. please help

[cyberbob]

I am getting the message given below whenever I am trying to run fsck in GUI mode. I am running FC6. what to do ? /dev/hdb3 is my "/" partition.

"[root@localhost ~]# fsck /dev/hdb3
fsck 1.39 (29-May-2006)
e2fsck 1.39 (29-May-2006)
/dev/hdb3 is mounted.

WARNING!!! Running e2fsck on a mounted filesystem may cause
SEVERE filesystem damage.

Do you really want to continue (y/n)?" -- Please help me as to what to do in this scenario..

NB: FC6 in installed in 3 Primary Partitions in the 80 GB HDD configured as Primary Slave [for ref please see my system config given below]:
Primary Partition 1 [200 MB]: /boot
Primary Partition 2 [19 GB]: /
Primary Partition 3 [1.5 MB]: swap
Extended partition: rest
-------------------------------------------------------------------------------------------------------

System Config:
Intel original D865GBF motherboard.
Intel Pentium 4 Processor @2.80 GHz [HT]
512 MB DDR RAM [Hynix - 256 MB in dual channel config]
Two 80 GB Seagate Barracuda HDDs:
1. IDE Channel 0 -> 80 GB HDD as Primary Master [PATA]
2. IDE Channel 0 -> 80 GB HDD as Primary Slave [PATA]
3. IDE Channel 1 -> Samsung 52x CD-ROM Drive [PATA]
4. IDE Channel 1 -> LG 52x CD-RW Drive [PATA]

[herrib]

The best way is to download a Live CD dedicated to recovery actions (for instance: http://www.sysresccd.org/Main_Page ) to boot, and to use tools as fsck.ext3, fsck, e2fsck (from e2fsprogs).

A fdisk -l with provides a clear description of the partitioning scheme.

Do not use the rescue CD for the system is mounted on /mnt/sysimage (partitions must stayed umounted for using e2fsprogs).

[Iron_Mike]

You really shouldn't run fsck on a mounted partition and there is a possibility of really borking it up. But if you boot to runlevel 1, then type unmount /dev/hdb3, then run fsck -f -p you'll be fine....

[w5set]

http://forum.fedoraforum.org/forum/s...light=autofsck

[cyberbob]

Thanks for the info..