prtvtoc(1M)

NAME

     prtvtoc - report information about a disk geometry and  par-
     titioning

SYNOPSIS

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

DESCRIPTION

     The prtvtoc command allows the contents of the label  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.

     -m mnttab
           Use mnttab as the  list  of  mounted  filesystems,  in
           place of /etc/mnttab.

     -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.

EXAMPLES

     Example 1: Using the prtvtoc Command

     The following example uses the prtvtoc  command  on  a  424-
     megabyte 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#

     The data in the Tag column above indicates the type of  par-
     tition, as follows:

     Name                        Number
     UNASSIGNED                  0x00
     BOOT                        0x01
     ROOT                        0x02
     SWAP                        0x03
     USR                         0x04
     BACKUP                      0x05
     STAND                       0x06
     VAR                         0x07
     HOME                        0x08
     ALTSCTR                      0x09
     CACHE                       0x0a
     RESERVED                    0x0b

     The data in the Flags column above indicates how the  parti-
     tion is to be mounted, as follows:

     Name                        Number
     MOUNTABLE, READ AND WRITE   0x00
     NOT MOUNTABLE               0x01
     MOUNTABLE, READ ONLY        0x10

     Example 2: Using the prtvtoc Command with the -f Option

     The following example uses the prtvtoc command with  the  -f
     option on a 424-megabyte hard disk:

     example# prtvtoc -f /dev/rdsk/c0t3d0s2
     FREE_START=0 FREE_SIZE=0 FREE_COUNT=0 FREE_PART=34

     Example 3: Using the prtvtoc Command on a Disk Over One Ter-
     abyte

     The following example uses uses the  prtvtoc  command  on  a
     disk over one terabyte:.

     example# prtvtoc /dev/rdsk/c1t1d0s2
     * /dev/rdsk/c1t1d0s2 partition map
     *
     * Dimensions:
     *     512 bytes/sector
     * 3187630080 sectors
     * 3187630013 accessible sectors
     *
     * Flags:
     *   1: unmountable
     *  10: read-only
     *
     *                          First     Sector    Last
     * Partition  Tag  Flags    Sector     Count    Sector  Mount Directory
     0      2    00         34    262144    262177
     1      3    01     262178    262144    524321
     6      4    00     524322 3187089340 3187613661
     8     11    00  3187613662     16384 318763004

ATTRIBUTES

     See attributes(5) for descriptions of the  following  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | SUNWcsu                     |
    |_____________________________|_____________________________|

SEE ALSO

     devinfo(1M),  fmthard(1M),  format(1M),  mount(1M),   attri-
     butes(5)

WARNINGS

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