mkdumprd(category30-tips-tricks-fragen.html) - phpMan

MKDUMRD(8)                  System Manager's Manual                 MKDUMRD(8)
NAME
       mkdumprd - creates initial ramdisk images for kdump crash recovery
SYNOPSIS
       mkdumprd [OPTION]
DESCRIPTION
       mkdumprd creates an initial ram file system for use in conjunction with
       the booting of a kernel within the kdump framework for crash  recovery.
       mkdumprds  purpose  is  to  create an initial ram filesystem capable of
       copying the crashed systems vmcore image to  a  location  specified  in
       /etc/kdump.conf
       mkdumprd  interrogates  the  running  system to understand what modules
       need to be loaded in the initramfs (based  on  configuration  retrieved
       from /etc/kdump.conf)
       mkdumprd  add a new dracut module 99kdumpbase and use dracut utility to
       generate the initramfs. When generating  a  kdump  initramfs,  mkdumprd
       will  determine  how much disk space is available, if the dump target's
       available space is not greater than the total system  memory,  mkdumprd
       will  print a warning to remind that there might not be enough space to
       save a vmcore. The warning covers extreme scenarios such  as  the  slab
       explodes  with  non-zero data or a full vmcore, etc. Therefore, need to
       prevent users from having minimum disk space for crash dump.
       mkdumprd was not intended for casual use outside of  the  service  ini-
       tialization  script  for the kdump utility, and should not be run manu-
       ally.  If you require a custom kdump initramfs image, it  is  suggested
       that  you  use the kdump service infrastructure to create one, and then
       manually unpack, modify and repack the image.
OPTIONS
       All options here are passed to dracut  directly,  please  refer  dracut
       docs
              for the info.
SEE ALSO
       dracut(8)
                                Fri Feb 9 2007                      MKDUMRD(8)