Date: Mon, 10 Apr 2006 15:43:50 -0400 From: Michael Proto <mike@jellydonut.org> To: "H. Wade Minter" <minter@lunenburg.org> Cc: freebsd-stable@freebsd.org Subject: Re: Odd "phantom MFS mountpoint" issue Message-ID: <443AB576.9050903@jellydonut.org>
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H. Wade Minter wrote: > I've got a 5.4-RELEASE-p9 system that I was doing some memory filesystem > testing on. I'm seeing something odd, though - a small MFS partition > mounted over top of /tmp that I can't get rid of. > > Here's the system now: > > [minter@carlton mrvoice]$ mount > /dev/ad0s1a on / (ufs, local, soft-updates) > devfs on /dev (devfs, local) > /dev/ad0s1d on /tmp (ufs, local, soft-updates) > /dev/ad0s1f on /usr/www (ufs, local, soft-updates) > /dev/ad0s1e on /var (ufs, local, soft-updates) > /dev/md0 on /tmp (ufs, local) > > There's no md0 line in /etc/fstab: > > [minter@carlton mrvoice]$ cat /etc/fstab > # Device Mountpoint FStype Options Dump > Pass# > /dev/ad0s1b none swap sw 0 0 > /dev/ad0s1a / ufs rw 1 1 > /dev/ad0s1d /tmp ufs rw 2 2 > /dev/ad0s1f /usr/www ufs rw 2 > 2 > /dev/ad0s1e /var ufs rw 2 2 > /dev/acd0 /cdrom cd9660 ro,noauto 0 0 > > I can see the md0 device with mdconfig: > > [root@carlton ~]# mdconfig -l > md0 > > I can stop all activity on /tmp, unmount it, and do mdconfig -d -u 0 to > delete the resources. However, when I reboot the system, the mountpoint > is back. I can't tell where the system is getting that from. > > How should I remove this mfs mountpoint permanently to get the disk-based > /tmp back? > > --Wade Do you have tmpmfs defined in /etc/rc.conf? If tmpfs is enabled there it will create a /tmp mfs as you are indicating. -Proto
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