Date: Mon, 30 Nov 2009 11:01:03 +1030 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: freebsd-stable@freebsd.org Cc: Pete French <petefrench@ticketswitch.com> Subject: Re: how to get the UFSID of a mounted filesystem ? Message-ID: <200911301101.05002.doconnor@gsoft.com.au> In-Reply-To: <E1NEtq7-000Miv-AC@dilbert.ticketswitch.com> References: <E1NEtq7-000Miv-AC@dilbert.ticketswitch.com>
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--nextPart1995073.iMKMxeipkr Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Mon, 30 Nov 2009, Pete French wrote: > I observer that when I mount a UFS filesystem using the device > name then the entry vanishes from /dev/ufsid, and glabel list no > longer shows the device. Which begs the question, how do I find > out the ufsid of a mountde filesystem (e.g. '/' so that I can change > it's fstab entry for the next reboot?) > > Am slightly embarassed to have to ask for help! Am sure this was > easy and in dmesg last time I did this... You can run dumpfs, eg line=3D`dumpfs 2> /dev/null $1 | head | grep superblock\ location` eval `echo $line | sed -nEe 's/superblock location.*id.*\[ (.*) (.*)\ ]/pri= ntf %0x $((0x\1 << 32 | 0x\2))/p'` I use this in a script to determine the ID so I can modify fstab after the install has finished. =2D-=20 Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --nextPart1995073.iMKMxeipkr Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.12 (FreeBSD) iD8DBQBLExJI5ZPcIHs/zowRAueSAJ4phAyi3jU5wlJxOoeZEcA4HdqLPQCfeOx0 lvrCCSPz+Zyt/oBmGSYJLLg= =r7pl -----END PGP SIGNATURE----- --nextPart1995073.iMKMxeipkr--
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