prtvtoc

 

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 Maintenance 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 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
      Example 1: The prtvtoc command.
 
      The command line entry and system response shown  below  are
      for 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
      *
 
      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
 
 
      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: Output for the  -f option.
 
      The following example shows output for the   -f  option  for
      the same disk as above.
 
      example# prtvtoc -f /dev/rdsk/c0t3d0s2
      FREE_START=0 FREE_SIZE=0 FREE_COUNT=0 FREE_PART=34
 


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.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 SunOS 5.8           Last change: 12 Sep 1997                    3
 
 
 

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