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Date:      Wed, 4 Jan 2006 22:20:36 -0500 (EST)
From:      user <user@dhp.com>
To:        freebsd-questions@freebsd.org
Subject:   how can I find out which md device I just used ? (mdconfig)
Message-ID:  <Pine.LNX.4.21.0601042216560.8684-100000@shell.dhp.com>

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mdconfig will use the next available md device, as long as you do not
specify a particular device on the command line with the -u switch.

Which is great.

However, in a script, the very next thing I want to do is mount that
mdconfig'd vnode filesystem.  But I do not know which md device mdconfig
just used.

I do not see any way in the mdconfig man page to get mdconfig to output
what device it is using when it is invoked ...

So ... assuming I am running mdconfig, followed by mount, in a shell
script ... and I do not specify a device becuase i do not know what
devices are available (beacuse I am running it automated) ... how can I
find out (any suggestions appreciated) what md device just got used so I
can mount it ?

I consiudered running `mdconfig -l` before and after the mdconfig, and
choosing the one that shows up as new, but that is not elegant and is
vulnerable to a race condition.

THanks.




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