'mount -u' stumper

[RW]

On Wed, 22 Jun 2011 06:45:27 -0500 (CDT)
Robert Bonomi wrote:

> 
> Environment is FreeBSD 7.2  i386
> 
> I have a Berkeley FFS filesystem that is mounted ro at boot time.
> 
> If I do a 'mount -u' to make it writable, it _is_ made writable, but
> "soft-updates' is also set.   Incidentally, does anybody know _where_
> the 'soft-updates' optioon is documented??  I've looked evereywhere I
> can think of, brute-force grepped wholee sections of
> the /usr/share/man directory tree, all without succeess.
> 
> If I use 'mount -u -r' to return it to the readonly state,
> 'soft-updates' is *still* set.
> 
> _HOW_ do I make'soft-updates' go away on a mounted filesystem ??


It's set because sysinstall uses  newfs -U by default for non-root
filesystems. You can turn it off with tunefs, although I don't see what
difference it makes if it's  mounted ro.