What’s Currently Mounted?

While performing routine work, inevitably you’ll need to check which disks are currently mounted and which are not. To see a list of all mounted filesystems and their mount options, run mount(8) without any options:

$ mount
/dev/wd0a on / type ffs (local)
/dev/wd0k on /home type ffs (local, nodev, nosuid)
/dev/wd0d on /tmp type ffs (local, nodev, nosuid)
/dev/wd0f on /usr type ffs (local, nodev)
/dev/wd0g on /usr/X11R6 type ffs (local, nodev)
/dev/wd0h on /usr/local type ffs (local, nodev)
/dev/wd0j on /usr/obj type ffs (local, nodev, nosuid)
/dev/wd0i on /usr/src type ffs (local, nodev, nosuid)
/dev/wd0e on /var type ffs (local, nodev, nosuid)

Both FFS and FFS2 partitions show up as type ffs. The word local means that the partition is on a physical drive attached to this machine. We covered the various mount options (nodev, nosuid, and so on) earlier in this chapter.

Note that mount displays the device node mounted at each partition, not the DUID. If you want to see the DUID of a disk, check the disklabel.