Re: mdmfs -P

On Sun, 16 Apr 2006 16:55:54 +0200
"Wojciech A. Koszek" <wkoszek_at_freebsd.org> wrote:

> On Thu, Apr 06, 2006 at 07:54:24AM +0000, Dima Dorfman wrote:
> > Leo R. Lundgren <leo_at_finalresort.org> wrote:
> > > Is there any way we could get the somewhat new -P option of mdmfs 
> > > (http://www.freebsd.org/cgi/cvsweb.cgi/src/sbin/mdmfs/mdmfs.c.diff?r1=1.25&r2=1.26) 
> > > to be put into -stable as well?
> > 
> > Have you tried using this feature on -CURRENT? When I committed it,
> > the original submitter (Wojciech, CC'd) said that my change didn't
> > work for him because it is disabled in compat mode (when mdmfs is
> > called as mount_mfs). I agree that this is a problem since the name
> > "mount_md" no longer works, although I didn't realize that at the
> > time.
> > 
> > Since it seems that a lot of people are asking for this, a reasonable
> > interim solution is to allow just this option in compat mode, although
> > figuring out what to do about the other non-compat-only options would
> > be a better long term solution. Wojciech, would a change that removes
> > the compat mode test for this option be acceptable for you too?
> 
> Yes, this is what I actually proposed earlier. You may ask others, but for
> me personally compat mode is not needed any more.
> 
> Sorry for late response and thanks.

I am new to the list and not fully following to this thread of discussion.
I believe that the "mount_md" is the one in /etc/rc.subr as I don't see
any other mount_md.  I started md-device a lot in these days.

Given that, I have suggestions:

1. Make mount_md in /etc/rc.subr obsolete.
2. Rename "mdmfs" to "mount_md".
3. Make another option that enables "newfs"
4. Make "mount_md" NOT to "newfs" and "mount_mfs" to DO "newfs" by default.
5. Don't forget about my patch. :p
5.1 http://docs.freebsd.org/cgi/getmsg.cgi?fetch=564035+0+archive/2006/freebsd-current/20060416.freebsd-current

The reasones for the above suggestions are:
1. Because we will create another one.
2. Because we can put it in fstab and "mount" can call it.
"mdmfs" is simply a wrapper to "mdconifg," "newfs," and "mount"
so that I don't see it attractive.  I'd say too many options to
think about and pass to a single program.  On ther other hand, if it
is called "mount_md", it is diffrent.
2. I don't think "mount_mdfs" is appropreate because it is not a
filesystem.
3. Because I want to do #4.
4. "mount_mfs" historically did "newfs" and as a matter of fact, it is
not functional unless done.  However, none of mount_* calls do "newfs."
Therefore, "mount_md" better not to do "newfs" when invoked.
5. This patch helps to mount uzip or partitions in md-devices.

Regards,
Hiro