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Date:      Mon, 29 May 2006 22:01:00 +0400 (MSD)
From:      Maxim Konovalov <maxim@macomnet.ru>
To:        Craig Rodrigues <rodrigc@FreeBSD.org>
Cc:        cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/ufs/ffs ffs_vfsops.c
Message-ID:  <20060529215827.D78736@mp2.macomnet.net>
In-Reply-To: <20060529193947.M63890@mp2.macomnet.net>
References:  <200605261244.k4QCiCsl057619@repoman.freebsd.org> <20060529193947.M63890@mp2.macomnet.net>

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On Mon, 29 May 2006, 19:47+0400, Maxim Konovalov wrote:

> Hi Craig,
>
> Reply to a random commit.
>
> On Fri, 26 May 2006, 12:44-0000, Craig Rodrigues wrote:
>
> > rodrigc     2006-05-26 12:44:12 UTC
> >
> >   FreeBSD src repository
> >
> >   Modified files:
> >     sys/ufs/ffs          ffs_vfsops.c
> >   Log:
> >   Remove "update" from ffs_opts.  It has been moved to global_opts
> >   in vfs_mount.c.
>
> It seems after recent changes our mount code behaves in very strange
> way:
>
> [root@sonnie ~]# grep vol0 /etc/exports
> /vol0 -ro
> [root@sonnie ~]# mount | grep vol0
> /dev/ad0s2d on /vol0 (ufs, NFS exported, local, soft-updates)
> [root@sonnie ~]# mount -u -o ro /vol0
> mount: /dev/ad0s2d: Operation not permitted
> [root@sonnie ~]# mount -u -r /vol0
> mount: /dev/ad0s2d: Operation not permitted
> [root@sonnie ~]# sed -i.bak 's@/vol0@#/vol0@' /etc/exports && killall
> -HUP mountd
> [root@sonnie ~]# mount | grep vol0
> /dev/ad0s2d on /vol0 (ufs, local, soft-updates)
> [root@sonnie ~]# mount -u -o ro /vol0
> mount: /dev/ad0s2d: No such file or directory
> [root@sonnie ~]# mount -u -r /vol0
> mount: /dev/ad0s2d: No such file or directory

More stranges (different system with the same src):

[root@fujic ~]# mount | grep vol0
/dev/ad0s2d on /vol0 (ufs, local, soft-updates)
[root@fujic ~]# mount -u -o ro /vol0
[root@fujic ~]# mount | grep vol0
/dev/ad0s2d on /vol0 (ufs, local, soft-updates)
[root@fujic ~]# mount -u -r /vol0
[root@fujic ~]# mount | grep vol0
/dev/ad0s2d on /vol0 (ufs, local, read-only, soft-updates)
[root@fujic ~]# mount -u -o rw /vol0
[root@fujic ~]# mount | grep vol0
/dev/ad0s2d on /vol0 (ufs, local, soft-updates)

So "mount -u -o ro" doesn't work but "mount -u -o rw" does.

-- 
Maxim Konovalov



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