How to check Badblock in linux machine/Server

Bad Sector  on hard disk cannot be used, Damage kind of physical damage.

Two way to find Bad sector. GUI & Command

In Fedora , you can find option under

Application > Accessories > Disk Utility.

Here you can see complete status of HDD.


Through Command line.

[root@ramank ~]# badblocks -v /dev/sda2

Checking blocks 0 to 511999

Checking for bad blocks (read-only test): done                               

Pass completed, 0 bad blocks found.


If you found any badblock, mark these bad sector as unusable.

Steps for that.

#badblocks /dev/sda2 > /tmp/badsector

After

#cd /tmp/

#fsck -1 badsector /dev/sda2


 1    - Filesystem errors corrected


Enjoy...