mount -a doesn't obey "ro" in /etc/fstab


Hello!

In order to test the new shiny msk driver, I've installed 6.2-PREPELEASE and then upgraded it to the CURRENT as of date=2006.09.26.00.00.00 (to overcome recent libalias breakage, and also to make sure that msk.HEAD.diff will apply cleanly). I've noticed the something very new (and annoying) after the upgrade: all filesystems listed in /etc/fstab with "ro" are still mounted as R/W. Here is my /etc/fstab:

# Device Mountpoint FStype Options Dump Pass#
/dev/ad0s3b none swap sw 0 0
/dev/ad0s4a / ufs rw,sync 0 1
/dev/ad0s4e /usr ufs rw 0 2
/dev/ad0s3a /mnt3 ufs ro 0 0
/dev/ad0s3d /mnt3/usr ufs ro 0 0

and here is 'mount' output:

$ mount
/dev/ad0s4a on / (ufs, local, synchronous)
devfs on /dev (devfs, local)
/dev/ad0s4e on /usr (ufs, local, soft-updates)
/dev/ad0s3a on /mnt3 (ufs, local)
/dev/ad0s3d on /mnt3/usr (ufs, local, soft-updates)

I also can write under /mnt3, so 'mount' correctly shows FS status. mount
_does_ obey 'mount -ur /mnt3', it just ignores "ro" in /etc/fstab. Booting
into the single-user mode and making 'mount -a' has the same effect.
Is this breakage well-known, or something new?

Sincerely, Dmitry
--
Atlantis ISP, System Administrator
e-mail: dmitry@xxxxxxxxxxxxxx
nic-hdl: LYNX-RIPE
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