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module-setup.sh: do not add duplicate ip=xxx to 40ip.conf 

In the remote dump case, and if fence kdump is configured, chances are
that the same network interface will be setup more than once.
One time for network dump, the other times for fence kdump. The result
is we will have two or more duplicate ip= configuration in 40ip.conf.

These are exactly duplicates, however dracut will refuse to continue and
raise a fatal error if there are duplicate configuration for the same
interface. So we have to avoid adding these duplicates.

Signed-off-by: WANG Chao <chaowang@redhat.com>
Tested-by: Zhi Zou <zzou@redhat.com>
Tested-by: Marek Grac <mgrac@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
This commit is contained in:
WANG Chao 2013-12-20 18:06:17 +08:00
parent da61e30907
commit 11cb815904
1 changed files with 11 additions and 3 deletions
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14
dracut-module-setup.sh
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@ -182,7 +182,7 @@ kdump_setup_znet() {
# Setup dracut to bringup a given network interface
kdump_setup_netdev() {
local _netdev=$1
local _static _proto
local _static _proto _ip_conf _ip_opts _ifname_opts
if [ "$(uname -m)" = "s390x" ]; then
kdump_setup_znet $_netdev
@ -196,7 +196,14 @@ kdump_setup_netdev() {
_proto=dhcp
fi
echo " ip=${_static}$_netdev:${_proto}" > ${initdir}/etc/cmdline.d/40ip.conf
_ip_conf="${initdir}/etc/cmdline.d/40ip.conf"
_ip_opts=" ip=${_static}$_netdev:${_proto}"
# dracut doesn't allow duplicated configuration for same NIC, even they're exactly the same.
# so we have to avoid adding duplicates
if [ ! -f $_ip_conf ] || ! grep -q $_ip_opts $_ip_conf; then
echo "$_ip_opts" >> $_ip_conf
fi
if kdump_is_bridge "$_netdev"; then
kdump_setup_bridge "$_netdev"
@ -207,7 +214,8 @@ kdump_setup_netdev() {
elif kdump_is_vlan "$_netdev"; then
kdump_setup_vlan "$_netdev"
else
echo " ifname=$_netdev:$(kdump_get_mac_addr $_netdev)" >> ${initdir}/etc/cmdline.d/40ip.conf
_ifname_opts=" ifname=$_netdev:$(kdump_get_mac_addr $_netdev)"
echo "$_ifname_opts" >> $_ip_conf
fi
kdump_setup_dns "$_netdev"