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Manual page for prtvtoc(1M)

prtvtoc - report information about a disk geometry and partitioning

SYNOPSIS

prtvtoc [ -fhs ] [ -t vfstab ] [ -m mnttab ] device

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 can be the file name of a raw device in the form of /dev/rdsk/c?t?d?s2 or can be the file name of a block device in the form of /dev/dsk/c?t?d?s2.

OPTIONS

The following options are supported:
-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 424­megabyte hard disk: 

example# prtvtoc /dev/rdsk/c0t3d0s2
* /dev/rdsk/c0t3d0s2  partition map
*
* Dimension:
*     512 bytes/sector
*      80 sectors/track
*       9 tracks/cylinder
*     720 sectors/cylinder
*    2500 cylinders
*    1151 accessible cylinders
*
* Flags:
*   1: unmountable
*  10: read-only
*


*                           First    Sector   Last
* Partition   Tag   Flags   Sector   Count    Sector   Mount Directory
     0         2     00          0    76320    76319   /
     1         3     01      76320   132480   208799
     2         5     00          0   828720   828719
     5         6     00     208800   131760   340559   /opt
     6         4     00     340560   447120   787679   /usr
     7         8     00     787680    41040   828719   /export/home
example#


Codes for TAG are: 

                       NAME         NUMBER
                       UNASSIGNED   0
                       BOOT         1
                       ROOT         2
                       SWAP         3
                       USR          4
                       BACKUP       5
                       VAR          7
                       HOME         8

FLAG indicates how the partition is to be mounted. 

               NAME                        NUMBER
               MOUNTABLE, READ AND WRITE   00
               NOT MOUNTABLE               01
               MOUNTABLE, READ ONLY        10

The following example shows output for the -f option for the same disk as above. 

example# prtvtoc -f /dev/rdsk/c0t3d0s0
FREE_START=0 FREE_SIZE=0 FREE_COUNT=0 FREE_PART=4
example#

ATTRIBUTES

See attributes.5 for descriptions of the following attributes: 

+---------------+-----------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-----------------+
|Availability   | SUNWcsu         |
+---------------+-----------------+

SEE ALSO

devinfo.1m fmthard.1m format.1m attributes.5

WARNINGS

The mount command does not check the "not mountable" bit.

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Created by unroff & hp-tools. © by Hans-Peter Bischof. All Rights Reserved (1997).

Last modified 07/October/97