Easiest way to corrupt ext3 file system (for testing)?

Question

I need to corrupt ext3 file system (for testing purposes) to some repairable state. How that can be done?

alvosu · Accepted Answer · 2011-02-01T13:22:15.867

2

'mkswap /dev/ext3_dev' or 'dd if=/dev/zerro of=/dev/ext3_dev bs=1024 skip=1000 count=300'

edited Feb 01 '11 at 13:22

answered Feb 01 '11 at 13:00

alvosu

score 0 · Answer 2 · answered Feb 01 '11 at 12:41

0

Well, create ext3 on lvm and shrink lvm, mkfs.ext3 without umounting, some lowlevel tool to delete inodes...

answered Feb 01 '11 at 12:41

Ency

score 0 · Answer 3 · answered Feb 01 '11 at 13:09

0

I'd write simple C-program for that doing a number of random seeks & destroy.

answered Feb 01 '11 at 13:09

poige

score 0 · Answer 4 · answered Feb 01 '11 at 14:31

0

How about just 'fsck' the filesystem while it is mounted, and you are writing some thing to it. This should work pretty consistently.

answered Feb 01 '11 at 14:31

slashdot

4 Answers4