Odd "phantom MFS mountpoint" issue
H. Wade Minter
minter at lunenburg.org
Mon Apr 10 19:37:05 UTC 2006
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 at 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 at 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 at 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
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