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kdumpctl, fadump: only use lsinitrd when initramfs exists in fadump mode 

When there's no kdump initramfs for lsinitrd to inspect with, there will
be an error:

  # kdumpctl start
  /boot/initramfs-3.16.0-rc7+kdump.img does not exist

  Usage: lsinitrd [options] [<initramfs file> [<filename> [<filename> [...] ]]]
  Usage: lsinitrd [options] -k <kernel version>

  -h, --help                  print a help message and exit.
  -s, --size                  sort the contents of the initramfs by size.
  -m, --mod                   list modules.
  -f, --file <filename>       print the contents of <filename>.
  -k, --kver <kernel version> inspect the initramfs of <kernel version>.

No kdump initial ramdisk found.
Rebuilding /boot/initramfs-3.16.0-rc7+kdump.img
[..]

In addition, lsinitrd is a slow operation. We only run it when it's
fadump mode, to speed up in kdump mode.

Signed-off-by: WANG Chao <chaowang@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
This commit is contained in:
WANG Chao 2014-08-05 13:51:16 +08:00
parent f7f8361af9
commit 83d14e0f39
1 changed files with 3 additions and 1 deletions
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4
kdumpctl
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@ -365,7 +365,9 @@ check_rebuild()
done
#check if target initrd has fadump support
initramfs_has_fadump=`lsinitrd -m $TARGET_INITRD | grep ^kdumpbase$ | wc -l`
if [ "$DEFAULT_DUMP_MODE" = "fadump" ] && [ -f "$TARGET_INITRD" ]; then
initramfs_has_fadump=`lsinitrd -m $TARGET_INITRD | grep ^kdumpbase$ | wc -l`
fi
if [ $image_time -eq 0 ]; then
echo -n "No kdump initial ramdisk found."; echo