[CentOS] Calling All FS Fanatics

Wed Oct 4 04:37:15 UTC 2006
Les Mikesell <lesmikesell at gmail.com>

On Tue, 2006-10-03 at 22:56, Feizhou wrote:
> >>>
> >>>>> I Imagine he holds the 'Y' key down, too, or has a patch to do it for
> >>>>> him..
> >>>> nah, fsck -y
> >>> No.  That still bails you out and asks you to run it without -a or -y.
> >>>
> >>> You can, however, put a matchstick between the 'Y' and the 'T' in such a
> >>> way that you can fix dinner while it's running. ;-)
> >> I just ran 'fsck -fvy' with no complaints.
> > 
> > That works if there is not much damage.  If the machine was
> > busy when it crashed there's a fair chance that it will
> > refuse to run with the -y, which is no fun when you really
> > need the machine to restart itself when power is restored.
> > 
> 
> How serious a level of damage before it refuses -y?

Just guessing, but probably anytime 2 or more concurrent writes
had allocated space but not completed the updates.

> I cannot remember any time that I have not been able to do -y and there 
> have been times when I saw a huge amount of errors being automatically 
> fixed.

With ext2 my odds were at least one out of 10 that a busy
machine wouldn't come back up automatically after a power
glitch.   Ext3 is much better because it normally just
uses the journal to recover.

-- 
  Les Mikesell
   lesmikesell at gmail.com