How to bypass bad block on Hard drive

matrim · 01-20-2005, 11:19 AM

I've some bad blocks, that redhat stops and does a force check to fix/ignore upon boot up. Is there a way to bypass at boot, remove, or repair the bad blocks?

twantrd · 01-20-2005, 02:58 PM

An option for e2fsck is to mark the bad blocks and flag them so that data will not be saved onto it. 'man e2fsck' to look at the different arguments you can pass.

-twantrd

matrim · 01-20-2005, 03:17 PM

Thanks,
After looking at man for e2fsck, I couldn't find anything that flagged the bad superblock so that data would not be saved to it. Only thing close was the -l option to write the bad block to a badblock file, but I have no idea what the file is called. I tried making one using the command e2fsck -pv -L badblocks /dev/hdc , but it just keeps saying Bad magic number in super-block, while trying to open /dev/hdc. It can't read the block or something.

twantrd · 01-20-2005, 04:42 PM

My 'man e2fsck' shows:

-c
This option causes e2fsck to run the badblocks(8) program to find any blocks which are bad on the filesystem, and then marks them as bad by adding them to the bad block inode. If this option is specified twice, then the bad block scan will be done using a non-destructive read-write test.

Therefore, run e2fsck -c /dev/hdc

-twantrd