You can determine a file system's type by using one of the following:
$ grep mount-point fs-table
Specifies the mount point name of the file system for which you want to know the file system type. For example, the /var directory.
Specifies the absolute path to the file system table in which to search for the file system's type. If the file system is mounted, fs-table should be /etc/mnttab. If the file system isn't mounted, fs-table should be /etc/vfstab.
Information for the mount point is displayed.
Note - If you have the raw device name of a disk slice, you can use the fstyp command to determine a file system's type (if the disk slice contains a file system). For more information, see fstyp(1M).
Example 16-1 Determining a File System's Type
The following example uses the /etc/vfstab file to determine the file system type for the /export file system.
$ grep /export /etc/vfstab /dev/dsk/c0t3d0s6 /dev/rdsk/c0t3d0s6 /export ufs 2 yes - $
The following example uses the /etc/mnttab file to determine the file system type of the currently mounted diskette.
$ grep /floppy /etc/mnttab /vol/dev/diskette0/unnamed_floppy /floppy/unnamed_floppy pcfs rw, nohidden,nofoldcase,dev=16c0009 89103376 $
The following example uses the fstyp command to determine the file system type.
# fstyp /dev/rdsk/c0t0d0s0 zfs