19.1.5 File System Mounting, SunOS 5.X

19.1.5.1 The mount table, /etc/vfstab

SunOS 5.X specifies it's mount table in /etc/vfstab, not /etc/fstab. The format has been changed a bit also. The fields in this table are:

device-to-mount the block special device for a local file system, or the server:/dir designation for a remote one
device-to-fsck the raw special device to be used by fsck
mount-point the mount point for the file system
FS-type file system type, e.g. ufs, nfs, rfs, swapfs, tmpfs, proc
fsck-pass specifies whether the file systems are checked sequentially or in parallel
mount-at-boot specify if the file system should be automatically mounted at boot
mount-options the list of comma-separated options used by mount (no spaces)

A vfstab file might look something like the following. Each field must contain an entry, so where no option is called for a hyphen (-) is used.

#device device mount FS fsck mount mount

#to mount to fsck point type pass at boot options

/proc - /proc proc - no -

fd - /dev/fd fd - no -

swap - /tmp tmpfs - yes -

/dev/dsk/c0t3d0s0 /dev/rdsk/c0t3d0s0 / ufs 1 no -

/dev/dsk/c0t3d0s6 /dev/rdsk/c0t3d0s6 /usr ufs 2 no -

/dev/dsk/c0t3d0s5 /dev/rdsk/c0t3d0s5 /opt ufs 3 yes -

/dev/dsk/c0t3d0s1 - - swap - no -

/acs/nyssa/0/swapfile - - swap - no -

/dev/dsk/c0t6d0s0 - /cdrom ufs - no ro

tardis:/home/tardis - /home/tardis nfs - yes hard,intr,bg

The fsck pass value specifies whether or not the file system is checked. If this field contains a value of 1 or greater the file system is checked. Non ufs type file systems with a zero fsck pass value are checked. For ufs file systems if this value is zero (0) or hyphen (-) the file system is not checked. For values greater than 1 the files systems are checked in parallel if the preen option (-o p) is used with fsck (this is the default for ufs file systems in /sbin/rcS).

The list of mounted file systems is kept in the /etc/mnttab file.

Unix System Administration - 8 AUG 1996

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