prtvtoc(1M)
NAME
prtvtoc − print the VTOC of a block device
SYNOPSIS
/usr/sbin/prtvtoc [ −fhs ] [ −t vfstab ] [ −m mnttab ] device
AVAILABILITY
SUNWcsr
DESCRIPTION
The prtvtoc command allows the contents of the VTOC (volume table of contents) to be viewed. The command can be used only by the super-user.
The device name must be the file name of a raw device in the form of /dev/rdsk/c?d?s2 or /dev/rdsk/c?t?d?s2.
OPTIONS
−f Report on the disk free space, including the starting block address of the free space, number of blocks, and unused partitions.
−h Omit the headers from the normal output.
−s Omit all headers but the column header from the normal output.
−t vfstab
Use vfstab as the list of filesystem defaults, in place of /etc/vfstab.
−m mnttab
Use mnttab as the list of mounted filesystems, in place of /etc/mnttab.
EXAMPLES
The command line entry and system response shown below are for a 72-megabyte hard disk:
example# prtvtoc /dev/rdsk/c1d0s2
∗ /dev/rdsk/c1d0s2 (volume"<name>") partition map
∗
∗ Dimension:
∗ 512 bytes/sector
∗ 18 sectors/track
∗ 11 tracks/cylinder
∗ 198 sectors/cylinder
∗ 754 cylinders
∗ 754 accessible cylinders
∗
∗ Flags:
∗ 1: unmountable
∗ 10: read-only
∗
| ∗ | First | Sector | Last | |||
| ∗ Partition | Tag | Flags | Sector | Count | Sector | Mount Directory |
| 0 | 2 | 00 | 19040 | 23460 | 42499 | / |
| 1 | 3 | 01 | 100 | 18940 | 19039 | |
| 2 | 0 | 01 | 0 | 148896 | 148895 | |
| 6 | 4 | 00 | 29552 | 119344 | 148895 | /usr |
| 7 | 1 | 01 | 0 | 100 | 99 |
# Codes for TAG are:
| NAME | NUMBER |
| UNASSIGNED | 0 |
| BOOT | 1 |
| ROOT | 2 |
| SWAP | 3 |
| USR | 4 |
| BACKUP | 5 |
| STAND | 6 |
FLAG indicates how the partition is to be mounted.
| NAME | NUMBER |
| MOUNTABLE, READ AND WRITE | 00 |
| NOT MOUNTABLE | 01 |
| MOUNTABLE, READ ONLY | 10 |
SEE ALSO
devinfo(1M), format(1M), fmthard(1M)
WARNINGS
The mount command does not check the "not mountable" bit.
SunOS 5.1/SPARC — Last change: 14 Sep 1992