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From: Xunlei Pang <xlpang-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: initramfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Harald Hoyer <harald-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	Dave Young <dyoung-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Xunlei Pang <xlpang-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: [PATCH] network/parse-ip-opts.sh: avoid die with multiple "ip=" dhcp cases
Date: Thu,  4 Feb 2016 16:35:01 +0800	[thread overview]
Message-ID: <1454574901-6290-1-git-send-email-xlpang@redhat.com> (raw)

When multiple "ip=" dhcp related commands are specified, dracut
will die. Two "ip=dhcp" is a simple example.

For kdump cases, when the kernel command line contains "ip=dhcp"
which is inherited by kdump environment, the network dumping also
hits this.

To fix it, we can treat multiple dhcp related commands just as one.

Signed-off-by: Xunlei Pang <xlpang-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
 modules.d/40network/parse-ip-opts.sh | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/modules.d/40network/parse-ip-opts.sh b/modules.d/40network/parse-ip-opts.sh
index 5779ef8..521f48b 100755
--- a/modules.d/40network/parse-ip-opts.sh
+++ b/modules.d/40network/parse-ip-opts.sh
@@ -22,16 +22,23 @@ fi
 # Count ip= lines to decide whether we need bootdev= or not
 if [ -z "$NEEDBOOTDEV" ] ; then
     count=0
+    has_dhcp=0
     for p in $(getargs ip=); do
-        case "$p" in
+        ip_to_var $p
+        case "$autoconf" in
             ibft)
                 continue;;
+            dhcp|dhcp6|on|any)
+                # Regard multiple dhcp cases as one to avoid die
+                has_dhcp=1
+                continue;;
         esac
         count=$(( $count + 1 ))
     done
+    count=$(( $count + $has_dhcp ))
     [ $count -gt 1 ] && NEEDBOOTDEV=1
 fi
-unset count
+unset count has_dhcp
 
 # If needed, check if bootdev= contains anything usable
 BOOTDEV=$(getarg bootdev=)
-- 
1.8.3.1

             reply	other threads:[~2016-02-04  8:35 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-04  8:35 Xunlei Pang [this message]
     [not found] ` <1454574901-6290-1-git-send-email-xlpang-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-02-04  9:04   ` [PATCH] network/parse-ip-opts.sh: avoid die with multiple "ip=" dhcp cases Dracut GitHub Import Bot
2016-02-05  2:07   ` Xunlei Pang

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