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Re: clearing bogus journal
On Tue, Aug 18, 2009 at 09:44:36PM +0900, Izumi Tsutsui wrote:
> > Sure. My question was more about already -c4 filesystem, with an
> > active but corrupted journal. I think fsck should be able to detect and
> > bring the filesystem back in a mountable state.
> Does it happen on plain -c4 filesystem created by
> newfs(8)? (not converted by fsck_ffs -c4)
No, I didn't notice it
> "unrecognized wapbl type" problem could happen as noted PR kern/39924,
> and in that case we should fix kernel to allow mount such fs readonly.
> (fsck_ffs(8) can fix it)
How ? In my case fsck_ffs (from 5.0.1) didn't fix anything. This is
what motivated my email.
> If "unknown journal type" error could also happen after crash,
I can't see why severe filesystem corruption coudln't cause it.
> it's better to provide some tools to fix it, but I have a feeling
> that such feature should be enabled by some explicit option.
> (I'm not sure if we will add other journal types in future though)
My idea was to have fsck_ffs check for it and abort the boot (just as
other severe problems noted by fsck_ffs -p). It's better to abort the boot
than let it continue with the filesystems not mounted properly.
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
NetBSD: 26 ans d'experience feront toujours la difference
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