Subject: bin/24533: mount -u fails for mfs filesystems
To: None <>
From: None <>
List: netbsd-bugs
Date: 02/23/2004 03:18:27
>Number:         24533
>Category:       bin
>Synopsis:       mount -u fails for mfs filesystems
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Feb 23 03:19:00 UTC 2004
>Originator:     Valeriy E. Ushakov
>Release:        -current as of 2004-02-23
NetBSD nada 1.6ZK NetBSD 1.6ZK (NADA) #1: Mon Feb 23 04:59:31 MSK 2004  uwe@sampo:/export/netbsd/cvs/src/sys/arch/hpcsh/compile/NADA hpcsh
$ mount_mfs -o ro -s 4m swap /mnt
$ mount -v -o rw -u /mnt
exec: mount_mfs -o update mfs:597 /mnt
mount_mfs: Unable to determine file system size

From a quick look the proble is that in sbin/newfs/newfs.c
the fssize variable is unitialized.

I encountered this while testing hpcsh miniroot,
so I guess all miniroot installs are potentially broken by this bug.

See description.