[PATCH v2] Add --force option to step 2 in early-kdump-howto.txt

For step2 in early-kdump-howto.txt, --force option of dracut
is necessary to rebuild system initramfs. Without --force option,
executing step2 fails because system initramfs already exists.

Signed-off-by: Shigeki Morishima 
---
 early-kdump-howto.txt | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/early-kdump-howto.txt b/early-kdump-howto.txt
index b8cab6a..f4fae36 100644
--- a/early-kdump-howto.txt
+++ b/early-kdump-howto.txt
@@ -34,14 +34,16 @@ You can rebuild the initramfs with earlykdump support with below steps:
     For the failure_action, you can choose anything other than "reboot".

2. rebuild system initramfs with earlykdump support.
-    # dracut --add earlykdump
+    # dracut --force --add earlykdump
+
+    NOTE: Recommend to backup the original system initramfs before performing
+    this step to put it back if something happens during boot-up.

3. add rd.earlykdump in grub kernel command line.

Note:
 [1]. Early kdump initramfs size will be large because it includes vmlinuz and
-kdump initramfs. And for step 2 if you are sure to overwrite system initramfs
-you can backup the original initramfs and use "--force" option.
+kdump initramfs.

[2]. Early kdump inherits the settings of normal kdump, so any changes that
 caused normal kdump rebuilding also require rebuilding the system initramfs
--
1.8.3.1