Date: Wed, 4 Jan 2006 19:59:46 -0500 (EST) From: user <user@dhp.com> To: freebsd-questions@freebsd.org Subject: how can I determine the lowest not-in-use md device (for use with mdconfig) ? Message-ID: <Pine.LNX.4.21.0601041952510.8684-100000@shell.dhp.com>
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The command: mdconfig -l will tell me what md devices are in use currently on the system. I have a situation where I want to automatically mount a vnode filesystem with an md device ... and I won't know ahead of time which devices are in use ... So ... can anyone think of an elegant way to find the lowest available md device ? Basically, I want to know how to take thie output: # mdconfig -l md4 md0 # and find which md?, that is not in that list, is the lowest ... I don't even have a very good guess as to how to do this ... I am working this into a /bin/sh shell script. thanks.
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