Manual Pages for UNIX Operating System command usage for man prtvtoc

System Administration Commands                        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:



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System Administration Commands                        prtvtoc(1M)



       *     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



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System Administration Commands                        prtvtoc(1M)



     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 Tera-
     byte


     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:






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System Administration Commands                        prtvtoc(1M)



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | SUNWcs                      |
    |_____________________________|_____________________________|


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

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










































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