PRTVTOC(8) — UNIX Programmer’s Manual
NAME
prtvtoc − print the VTOC of a block device
SYNOPSIS
/usr/etc/prtvtoc [ −s ] [ −h ] [ −T ] [ −t fstab ] [ −m mtab ] device
DESCRIPTION
prtvtoc allows the contents of the VTOC (volume table of contents) to be viewed by a user for reference or verification. In addition to printing the contents of the VTOC, the command lists any free areas on the disk (that is, those without a partition).
The device on which the VTOC is installed is specified as the unpartitioned version of the device, i.e, /dev/rzd0 or /dev/rsd1.
OPTIONS
−s Print only the partition table, with headings but without the comments. This option also inhibits the printing of all V_NOPART partitions.
−h Print only the partition table, without headings and comments. Use this option when the output of the prtvtoc command is piped into another command.
−T Print only the disk type name. Use this option to discover what the disk type is.
−tfstab Use the file fstab instead of /etc/fstab.
−mmtab Use the file mtab instead of /etc/mtab.
EXAMPLE
The command line entry and system response shown below are for a 792-megabyte disk: # prtvtoc /dev/rzd0 <CR>
∗ /dev/rdz0 partition map
∗
∗ Disk Type: m2333k
∗
| ∗ Dimensions: |
| ∗ 512 bytes/sector |
| ∗ 66 sectors/track |
| ∗ 10 tracks/cylinder |
| ∗ 823 cylinders |
∗
∗ Partition Types:
∗ 0: Empty Slot
∗ 1: Regular Partition
∗ 2: Bootstrap Area
∗ 3: Reserved Area
∗ 4: Firmware Area
| Start | Size | Block Sz | Frag Sz | Mount | |||||||||
| ∗ | Type | Sector | in Sectors | in Bytes | in Bytes | Point | |||||||
| 0 | 1 | 221100 | 49500 | 8192 | 1024 | ||||||||
| 1 | 1 | 270600 | 67320 | 8192 | 1024 | ||||||||
| 2 | 1 | 337920 | 203940 | 8192 | 1024 | ||||||||
| 3 | 1 | 692 | 220408 | 8192 | 1024 | ||||||||
| 4 | 0 | 0 | 0 | 8192 | 1024 | ||||||||
| 5 | 0 | 0 | 0 | 8192 | 1024 | ||||||||
| 6 | 0 | 0 | 0 | 8192 | 1024 | ||||||||
| 7 | 0 | 0 | 0 | 8192 | 1024 | ||||||||
| 8 | 0 | 0 | 0 | 8192 | 1024 | ||||||||
| 9 | 0 | 0 | 0 | 8192 | 1024 | ||||||||
| 10 | 0 | 0 | 0 | 8192 | 1024 | ||||||||
| 11 | 0 | 0 | 0 | 8192 | 1024 | ||||||||
| 12 | 3 | 0 | 660 | 0 | 0 | ||||||||
| 13 | 3 | 541860 | 1320 | 0 | 0 | ||||||||
| 14 | 2 | 660 | 16 | 0 | 0 | ||||||||
| 15 | 3 | 676 | 16 | 0 | 0 |
# Codes for TYPE are as follows:
| Name | Number |
| No Partition | 0 |
| Regular Partition | 1 |
| Boot Area | 2 |
| Reserved Area | 3 |
| Firmware Area | 4 |
| Model D Scan Dump Area | 5 |
If the device passed to prtvtoc does not contain a VTOC, an error will occur.
SEE ALSO
mkvtoc(8), rmvtoc(8), prtvtoc(8S)
NOTES
A user must have read access to the device for this command to work.
7th Edition