Determining a File System's Type

You can determine a file system's type by using one of the following:

• The FS type field in the virtual file system table (the /etc/vfstab file)

• The /etc/default/fs file for local file systems

• The /etc/dfs/fstypes file for NFS file systems

How to Determine a File System's Type

These commands work whether or not the file system is mounted.

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 14-1 Determining a File System's Type

The following example uses the fstyp command to determine the file system type.

# fstyp /dev/rdsk/c0t0d0s0
zfs

The following example uses the /etc/vfstab file to determine the file system type for the /legacy file system.

$ grep /legacy /etc/vfstab
/dev/dsk/c0t3d0s6   /dev/rdsk/c0t3d0s6  /legacy ufs   2       yes    -