[PATCH 2/2] mount: -T OTHERTAB support

[Isaac Dunham]

On Wed, Mar 11, 2015 at 08:07:02PM +0100, Denys Vlasenko wrote:
> On Wed, Mar 11, 2015 at 7:14 PM, Isaac Dunham <ibid.ag at gmail.com> wrote:
> > On Wed, Mar 11, 2015 at 04:11:27PM +0100, Denys Vlasenko wrote:
> >> Applied, thanks!
> >
> > Ok, I have two questions (one about the chanes to the patch, one general C)
> >
> > First, why did the documentation for -w get turned off?
> 
> Because -w is a default.
> 
> When user types "mount --help"?
> 
> When he needs to use an option, but forgot which letter it is.
> 
> But user would never want to use -w. It's the default.

OK, thanks for the explanation (and thanks to Laurent for answering
the other question).

Now, should support for -T should be folded into fstab support
(so if you can parse fstab, -T works)?

Also, I'm thinking about adding "mount -m"; this is an extension over
util-linux mount, which would create the mountpoint if it doesn't
exist.
I've asked on the util-linux list about whether that option is spoken
for, and if there's any interest in seeing it in util-linux.

I'd been thinking about using -d or -p at first, but I see that FreeBSD
already uses -d for what we call -f (dry-run/fake), and -p to dump
the current mount status in the form it would be included in fstab;
with util-linux this is done via
 findmnt -l -o SOURCE,TARGET,FSTYPE,OPTIONS

Of course, FreeBSD mount could be argued to be hopelessly incompatible:
freebsd		util-linux
-d		-f	(dryrun/fake)
-f		(none: force remount,ro)
-F		-T
(none)		-i 	(use internal)
-L		(none: mount only "late" filesystems)
-l		(none: mount "late" filesystems)
(none)		-L	(mount by label)
(none)		-l 	(show labels)
-p		(none: use findmnt)
-u		-o remount,...


I note that the option x-mount.mkdir is equivalent to the option I've
been contemplating, and might be more useful...

Thanks,
Isaac Dunham