diskdumpfmt - phpMan

DISKDUMPFMT(8)                                                  DISKDUMPFMT(8)



NAME
       diskdumpfmt - format a dump device or a partition

SYNOPSIS
       diskdumpfmt [ -v ] [ [ -a ] [ -p ] [ -f ] | -c ] device

       diskdumpfmt -V

DESCRIPTION
       diskdumpfmt  is  a  program  to format a block device file or partition device file
       that is to be specified as a disk dump device.  There are two types of  formatting.
       The  first  type is called the initial formatting, and it writes special signatures
       over every page-size block of the dump partition. The second  type  is  called  the
       normal  formatting,  and  it  writes  special  signatures over all page-size blocks
       except for  block #0.  Block #0 is used as the dump partition header, and is  never
       modified  during a memory dump operation. The administrator must do an initial for-
       matting of each dump device partition only once.  The  normal  format  is  required
       after  each  memory dump, but typically it is done automatically by the diskdump rc
       script.

OPTIONS
       -a     Format all blocks of the dump partition. Unless this  option  is  specified,
              diskdumpfmt  checks  blocks only that is checked by kernel. Then diskdumpfmt
              formats those blocks.

       -c     Check the status of the dump partition.
              diskdumpfmt returns one of the following values.
                   0: the partition does not require formatting
                   1: the partition contains a memory dump
                   2: the partition requires initial formatting
                   3: the partition requires formatting
                   4: the partition is not suitable for diskdump
                   5: the partition is swap partition
                   6: the partition is swap partition which contains a memory dump

       -f     Format the dump partition forcibly without checking it out. That  is  called
              the initial formatting

       -p     Display progress for formatting.

       -v     Provide some verbose outputs.

       -V     Show version information and exit.

SEE ALSO
       diskdumpctl_proc(8), diskdumpctl_sysfs(8), savecore(8)



                                                                DISKDUMPFMT(8)

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