initdumpfs(1M)                                               initdumpfs(1M)

NAME
     initdumpfs - create file system for large memory dumps

SYNOPSIS
     initdumpfs [NONE | [-f] partition]

DESCRIPTION
     Memory dumps can be very large on systems that have an EHIOS board
     installed. These memory dumps should be accommodated in a single file
     system. The initdumpfs command supports the system administrator in
     creating this file system and performs consistency checks.

     When called without options, initdumpfs outputs the current settings
     in relation to the memory dump settings and interactively prompts the
     system administrator for the partition where the file system is to be
     created.

     initdumpfs performs the following checks:

     -  Are there any memory dumps under /var/crash?

     -  Is the partition being used for any other purposes?

     -  Is the data area behind the partition at least 250 Mbytes in size
        or, in the case of large memory configurations, is it greater than
        one sixth the size of the main memory?

     If no errors are established, a mkfs command is executed for this par-
     tition and the partition is mounted as a file system under /var/crash.
     The relevant entries for automatic actions following the reboot are
     made in the respective configuration files.

     If you specify the argument NONE for initdumpfs, the system adminis-
     trator decides that no further memory dumps are to be saved. This
     means that panics can no longer be analyzed.

     If the -f (forced) option is used or if the partition is specified
     directly, initdumpfs does not run interactively.

     initdumpfs initializes several parameters from /etc/default/dumpsave:

          DUMPDIR=/var/crash
          DUMPARTITION=partition or NONE

DIAGNOSTICS
     The initdumpfs command has the return code zero, if the settings were
     made correctly; otherwise, a return code other than zero is supplied
     and an appropriate error message is issued.







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initdumpfs(1M)                                               initdumpfs(1M)

     Error codes:

     1  Interactive mode aborted.

     2  Error creating file system.

     3  Files available under /var/crash.

     4  Incorrect number of parameters.

     5  Bad partition specification.

     6  No suitable device entry for the partition.

     8  Data area for the partition too small.

FILES
     /etc/default/dumpsave

SEE ALSO
     dumpsave(1M), mkfs(1M), dumpsave(4).

































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