Subject: 1.3_BETA upgrade: fsck/mount problem
To: None <port-i386@NetBSD.ORG>
From: Andreas Wrede <email@example.com>
Date: 12/18/1997 11:24:39
I am trying to upgrade a 1.3_ALPHA system to the BETA snapshot of Dec 16.
The upgrade script fails when 'chroot /mnt fsck -f -p' finds errors
/dev/wd0a: INCORRECT BLOCK COUNT I=3984 (2128 should be 208) (CORRECTED)
/dev/wd0a: FREE BLK COUNT(S) WRONG IN SUPERBLK (SALVAGED)
/dev/wd0a: BLK(S) MISSING IN BIT MAPS (SALVAGED)
/dev/wd0a: SUMMARY INFORMATION BAD (SALVAGED)
and segfaults when checking the root partition. I can avoid the problem by
adding a 'sync' command to the upgrade script after it copies the new fsck
to /mnt/sbin, right before remounting / ro.
When running the same sequence of commands 'upgrade' runs by hand the
problem does not occur - looks like the typing time is enough to flush all dirty
blocks to disk before root is re-mounted ro.
Is the a generic problem, ie should mount sync the fs before re-mounting it
Andreas Wrede Planix, Inc.
firstname.lastname@example.org Networking, System Administration, Consulting
http://www.planix.com Toronto, Ontario, Canada