[PATCH v2] kdump-module-setup.sh: Handle static IPs defined in NetworkManager gui

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[PATCH v2] Modify dracut-kdump.sh...

[PATCH] Modify dracut-kdump.sh and...

Marc Milgram

20 May 2014 20 May '14

1:31 p.m.

NetworkManager changed the format of ifcfg-device files. They may define static IP addresses with the following format: IPADDR0=192.168.122.100 PREFIX0=24

There may be up to 255 ip addresses for a network device - each with a unique number tagged to the end of IPADDR and PREFIX.

Prior to this fix, kdump only handled static ip addresses defined with IPADDR=192.168.122.100 PREFIX=24

ie. without the number.

The solution is to use "ip" commands to find the correct network information.

Tested with both static and dynamic IP addresses.

v2: Fixed a local variable that was set incorrectly

Signed-off-by: Marc Milgram mmilgram@redhat.com

diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh index 2a16900..bfe1924 100755 --- a/dracut-module-setup.sh +++ b/dracut-module-setup.sh @@ -67,14 +67,17 @@ kdump_setup_dns() { }

#$1: netdev name -#checking /etc/sysconfig/network-scripts/ifcfg-$1, +#$2: srcaddr #if it use static ip echo it, or echo null kdump_static_ip() { - . /etc/sysconfig/network-scripts/ifcfg-$1 - if [ -n "$IPADDR" ]; then - [ -z "$NETMASK" -a -n "$PREFIX" ] && \ - NETMASK=$(ipcalc -m $IPADDR/$PREFIX | cut -d'=' -f2) - echo -n "${IPADDR}::${GATEWAY}:${NETMASK}::" + local _netmask _gateway + local _netdev="$1" _srcaddr="$2" + local _ipaddr=$(ip addr show dev $_netdev permanent | \ + awk "/ $_srcaddr/.* $_netdev$/{print $2}") + if [ -n "$_ipaddr" ]; then + _netmask=$(ipcalc -m $_ipaddr | cut -d'=' -f2) + _gateway=$(ip route list dev $_netdev | awk '/^default /{print $3}') + echo -n "${_srcaddr}::${_gateway}:${_netmask}::" fi }

@@ -181,7 +184,7 @@ kdump_setup_znet() {

# Setup dracut to bringup a given network interface kdump_setup_netdev() { - local _netdev=$1 + local _netdev=$1 _srcaddr=$2 local _static _proto _ip_conf _ip_opts _ifname_opts

if [ "$(uname -m)" = "s390x" ]; then @@ -189,7 +192,7 @@ kdump_setup_netdev() { fi

_netmac=$(kdump_get_mac_addr $_netdev) - _static=$(kdump_static_ip $_netdev) + _static=$(kdump_static_ip $_netdev $_srcaddr) if [ -n "$_static" ]; then _proto=none else @@ -223,8 +226,9 @@ kdump_setup_netdev() {

#Function:kdump_install_net #$1: config values of net line in kdump.conf +#$2: srcaddr of network device kdump_install_net() { - local _server _netdev + local _server _netdev _srcaddr local config_val="$1"

_server=`echo $config_val | sed 's/.*@//' | cut -d':' -f1` @@ -239,13 +243,15 @@ kdump_install_net() { if [ -n "`echo $_netdev | grep via`" ] then # we are going to a different subnet + _srcaddr=`echo $_netdev|awk '{print $7}'|head -n 1` _netdev=`echo $_netdev|awk '{print $5;}'|head -n 1` else # we are on the same subnet + _srcaddr=`echo $_netdev|awk '{print $5}'|head -n 1` _netdev=`echo $_netdev|awk '{print $3}'|head -n 1` fi

- kdump_setup_netdev "${_netdev}" + kdump_setup_netdev "${_netdev}" "${_srcaddr}"

#save netdev used for kdump as cmdline # Whoever calling kdump_install_net() is setting up the default gateway,

Show replies by date

Vivek Goyal

21 May 21 May

7:38 a.m.

On Tue, May 20, 2014 at 02:31:27PM -0400, Marc Milgram wrote:

...

NetworkManager changed the format of ifcfg-device files. They may define static IP addresses with the following format: IPADDR0=192.168.122.100 PREFIX0=24

There may be up to 255 ip addresses for a network device - each with a unique number tagged to the end of IPADDR and PREFIX.

Prior to this fix, kdump only handled static ip addresses defined with IPADDR=192.168.122.100 PREFIX=24

ie. without the number.

The solution is to use "ip" commands to find the correct network information.

Tested with both static and dynamic IP addresses.

v2: Fixed a local variable that was set incorrectly

Signed-off-by: Marc Milgram mmilgram@redhat.com

Acked-by: Vivek Goyal vgoyal@redhat.com

Vivek

...

diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh index 2a16900..bfe1924 100755 --- a/dracut-module-setup.sh +++ b/dracut-module-setup.sh @@ -67,14 +67,17 @@ kdump_setup_dns() { }

#$1: netdev name -#checking /etc/sysconfig/network-scripts/ifcfg-$1, +#$2: srcaddr #if it use static ip echo it, or echo null kdump_static_ip() {
. /etc/sysconfig/network-scripts/ifcfg-$1

if [ -n "$IPADDR" ]; then
  [ -z "$NETMASK" -a -n "$PREFIX" ] && \
      NETMASK=$(ipcalc -m $IPADDR/$PREFIX | cut -d'=' -f2)
  echo -n "${IPADDR}::${GATEWAY}:${NETMASK}::"
local _netmask _gateway

local _netdev="$1" _srcaddr="$2"

local _ipaddr=$(ip addr show dev $_netdev permanent | \
               awk "/ $_srcaddr\/.* $_netdev\$/{print \$2}")
if [ -n "$_ipaddr" ]; then
  _netmask=$(ipcalc -m $_ipaddr | cut -d'=' -f2)
  _gateway=$(ip route list dev $_netdev | awk '/^default /{print $3}')
  echo -n "${_srcaddr}::${_gateway}:${_netmask}::"
fi
}

@@ -181,7 +184,7 @@ kdump_setup_znet() {

# Setup dracut to bringup a given network interface kdump_setup_netdev() {

local _netdev=$1

local _netdev=$1 _srcaddr=$2 local _static _proto _ip_conf _ip_opts _ifname_opts

if [ "$(uname -m)" = "s390x" ]; then

@@ -189,7 +192,7 @@ kdump_setup_netdev() { fi
 _netmac=$(kdump_get_mac_addr $_netdev)
_static=$(kdump_static_ip $_netdev)

_static=$(kdump_static_ip $_netdev $_srcaddr) if [ -n "$_static" ]; then _proto=none else

@@ -223,8 +226,9 @@ kdump_setup_netdev() {

#Function:kdump_install_net #$1: config values of net line in kdump.conf +#$2: srcaddr of network device kdump_install_net() {

local _server _netdev

local _server _netdev _srcaddr local config_val="$1"

_server=`echo $config_val | sed 's/.*@//' | cut -d':' -f1`

@@ -239,13 +243,15 @@ kdump_install_net() { if [ -n "`echo $_netdev | grep via`" ] then # we are going to a different subnet
   _srcaddr=`echo $_netdev|awk '{print $7}'|head -n 1`
   _netdev=`echo $_netdev|awk '{print $5;}'|head -n 1`
else # we are on the same subnet
   _srcaddr=`echo $_netdev|awk '{print $5}'|head -n 1`
   _netdev=`echo $_netdev|awk '{print $3}'|head -n 1`
fi
kdump_setup_netdev "${_netdev}"

kdump_setup_netdev "${_netdev}" "${_srcaddr}"

#save netdev used for kdump as cmdline # Whoever calling kdump_install_net() is setting up the default gateway,

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Dave Young

22 May 22 May

2:28 a.m.

On 05/20/14 at 02:31pm, Marc Milgram wrote:

...

NetworkManager changed the format of ifcfg-device files. They may define static IP addresses with the following format: IPADDR0=192.168.122.100 PREFIX0=24

There may be up to 255 ip addresses for a network device - each with a unique number tagged to the end of IPADDR and PREFIX.

Prior to this fix, kdump only handled static ip addresses defined with IPADDR=192.168.122.100 PREFIX=24

ie. without the number.

The solution is to use "ip" commands to find the correct network information.

Hi, Marc

Since ip is used do we still need the dracut patch for static route support? I'm reviewing the dracut patch today, I would like to hear from your idea firstly before I dive into the details.

Thanks a lot.

...

Tested with both static and dynamic IP addresses.

v2: Fixed a local variable that was set incorrectly

Signed-off-by: Marc Milgram mmilgram@redhat.com

diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh index 2a16900..bfe1924 100755 --- a/dracut-module-setup.sh +++ b/dracut-module-setup.sh @@ -67,14 +67,17 @@ kdump_setup_dns() { }

#$1: netdev name -#checking /etc/sysconfig/network-scripts/ifcfg-$1, +#$2: srcaddr #if it use static ip echo it, or echo null kdump_static_ip() {
. /etc/sysconfig/network-scripts/ifcfg-$1

if [ -n "$IPADDR" ]; then
  [ -z "$NETMASK" -a -n "$PREFIX" ] && \
      NETMASK=$(ipcalc -m $IPADDR/$PREFIX | cut -d'=' -f2)
  echo -n "${IPADDR}::${GATEWAY}:${NETMASK}::"
local _netmask _gateway

local _netdev="$1" _srcaddr="$2"

local _ipaddr=$(ip addr show dev $_netdev permanent | \
               awk "/ $_srcaddr\/.* $_netdev\$/{print \$2}")
if [ -n "$_ipaddr" ]; then
  _netmask=$(ipcalc -m $_ipaddr | cut -d'=' -f2)
  _gateway=$(ip route list dev $_netdev | awk '/^default /{print $3}')
  echo -n "${_srcaddr}::${_gateway}:${_netmask}::"
fi
}

@@ -181,7 +184,7 @@ kdump_setup_znet() {

# Setup dracut to bringup a given network interface kdump_setup_netdev() {

local _netdev=$1

local _netdev=$1 _srcaddr=$2 local _static _proto _ip_conf _ip_opts _ifname_opts

if [ "$(uname -m)" = "s390x" ]; then

@@ -189,7 +192,7 @@ kdump_setup_netdev() { fi
 _netmac=$(kdump_get_mac_addr $_netdev)
_static=$(kdump_static_ip $_netdev)

_static=$(kdump_static_ip $_netdev $_srcaddr) if [ -n "$_static" ]; then _proto=none else

@@ -223,8 +226,9 @@ kdump_setup_netdev() {

#Function:kdump_install_net #$1: config values of net line in kdump.conf +#$2: srcaddr of network device kdump_install_net() {

local _server _netdev

local _server _netdev _srcaddr local config_val="$1"

_server=`echo $config_val | sed 's/.*@//' | cut -d':' -f1`

@@ -239,13 +243,15 @@ kdump_install_net() { if [ -n "`echo $_netdev | grep via`" ] then # we are going to a different subnet
   _srcaddr=`echo $_netdev|awk '{print $7}'|head -n 1`
   _netdev=`echo $_netdev|awk '{print $5;}'|head -n 1`
else # we are on the same subnet
   _srcaddr=`echo $_netdev|awk '{print $5}'|head -n 1`
   _netdev=`echo $_netdev|awk '{print $3}'|head -n 1`
fi
kdump_setup_netdev "${_netdev}"

kdump_setup_netdev "${_netdev}" "${_srcaddr}"

#save netdev used for kdump as cmdline # Whoever calling kdump_install_net() is setting up the default gateway,

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Marc Milgram

3:51 p.m.

On 05/22/2014 03:28 AM, Dave Young wrote:

...

On 05/20/14 at 02:31pm, Marc Milgram wrote:

...
NetworkManager changed the format of ifcfg-device files. They may define static IP addresses with the following format: IPADDR0=192.168.122.100 PREFIX0=24

There may be up to 255 ip addresses for a network device - each with a unique number tagged to the end of IPADDR and PREFIX.

Prior to this fix, kdump only handled static ip addresses defined with IPADDR=192.168.122.100 PREFIX=24

ie. without the number.

The solution is to use "ip" commands to find the correct network information.

Hi, Marc

Since ip is used do we still need the dracut patch for static route support? I'm reviewing the dracut patch today, I would like to hear from your idea firstly before I dive into the details.

Thanks a lot.

Hi Dave,

We still need to handle static routes. Maybe "ip route show protocol static | grep $netdev"

Marc

...

...
Tested with both static and dynamic IP addresses.

v2: Fixed a local variable that was set incorrectly

Signed-off-by: Marc Milgram mmilgram@redhat.com

diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh index 2a16900..bfe1924 100755 --- a/dracut-module-setup.sh +++ b/dracut-module-setup.sh @@ -67,14 +67,17 @@ kdump_setup_dns() { }

#$1: netdev name -#checking /etc/sysconfig/network-scripts/ifcfg-$1, +#$2: srcaddr #if it use static ip echo it, or echo null kdump_static_ip() {
. /etc/sysconfig/network-scripts/ifcfg-$1

if [ -n "$IPADDR" ]; then
  [ -z "$NETMASK" -a -n "$PREFIX" ] && \
      NETMASK=$(ipcalc -m $IPADDR/$PREFIX | cut -d'=' -f2)
  echo -n "${IPADDR}::${GATEWAY}:${NETMASK}::"
local _netmask _gateway

local _netdev="$1" _srcaddr="$2"

local _ipaddr=$(ip addr show dev $_netdev permanent | \
               awk "/ $_srcaddr\/.* $_netdev\$/{print \$2}")
if [ -n "$_ipaddr" ]; then
  _netmask=$(ipcalc -m $_ipaddr | cut -d'=' -f2)
  _gateway=$(ip route list dev $_netdev | awk '/^default /{print $3}')
  echo -n "${_srcaddr}::${_gateway}:${_netmask}::"
fi
}
@@ -181,7 +184,7 @@ kdump_setup_znet() {

# Setup dracut to bringup a given network interface kdump_setup_netdev() {

local _netdev=$1

local _netdev=$1 _srcaddr=$2 local _static _proto _ip_conf _ip_opts _ifname_opts

if [ "$(uname -m)" = "s390x" ]; then

@@ -189,7 +192,7 @@ kdump_setup_netdev() { fi
  _netmac=$(kdump_get_mac_addr $_netdev)
_static=$(kdump_static_ip $_netdev)

_static=$(kdump_static_ip $_netdev $_srcaddr) if [ -n "$_static" ]; then _proto=none else

@@ -223,8 +226,9 @@ kdump_setup_netdev() {

#Function:kdump_install_net #$1: config values of net line in kdump.conf +#$2: srcaddr of network device kdump_install_net() {

local _server _netdev

local _server _netdev _srcaddr local config_val="$1"

_server=`echo $config_val | sed 's/.*@//' | cut -d':' -f1`

@@ -239,13 +243,15 @@ kdump_install_net() { if [ -n "`echo $_netdev | grep via`" ] then # we are going to a different subnet
   _srcaddr=`echo $_netdev|awk '{print $7}'|head -n 1`
    _netdev=`echo $_netdev|awk '{print $5;}'|head -n 1`
else
    # we are on the same subnet
   _srcaddr=`echo $_netdev|awk '{print $5}'|head -n 1`
    _netdev=`echo $_netdev|awk '{print $3}'|head -n 1`
fi
kdump_setup_netdev "${_netdev}"

kdump_setup_netdev "${_netdev}" "${_srcaddr}"

#save netdev used for kdump as cmdline # Whoever calling kdump_install_net() is setting up the default gateway,

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Dave Young

9:08 p.m.

On 05/22/14 at 04:51pm, Marc Milgram wrote:

...

On 05/22/2014 03:28 AM, Dave Young wrote:

...
On 05/20/14 at 02:31pm, Marc Milgram wrote:

...
NetworkManager changed the format of ifcfg-device files. They may define static IP addresses with the following format: IPADDR0=192.168.122.100 PREFIX0=24

There may be up to 255 ip addresses for a network device - each with a unique number tagged to the end of IPADDR and PREFIX.

Prior to this fix, kdump only handled static ip addresses defined with IPADDR=192.168.122.100 PREFIX=24

ie. without the number.

The solution is to use "ip" commands to find the correct network information.

Hi, Marc

Since ip is used do we still need the dracut patch for static route support? I'm reviewing the dracut patch today, I would like to hear from your idea firstly before I dive into the details.

Thanks a lot.

Hi Dave,

We still need to handle static routes. Maybe "ip route show protocol static | grep $netdev"

Marc, thanks. I will discuss this with Baoquan after he came back. He is PTO this week.

Thanks Dave

WANG Chao

26 May 26 May

11:43 p.m.

Hi, Marc

Thanks for this fix.

On 05/20/14 at 02:31pm, Marc Milgram wrote:

...

NetworkManager changed the format of ifcfg-device files. They may define static IP addresses with the following format: IPADDR0=192.168.122.100 PREFIX0=24

There may be up to 255 ip addresses for a network device - each with a unique number tagged to the end of IPADDR and PREFIX.

Prior to this fix, kdump only handled static ip addresses defined with IPADDR=192.168.122.100 PREFIX=24

ie. without the number.

The solution is to use "ip" commands to find the correct network information.

Tested with both static and dynamic IP addresses.

v2: Fixed a local variable that was set incorrectly

Signed-off-by: Marc Milgram mmilgram@redhat.com

diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh index 2a16900..bfe1924 100755 --- a/dracut-module-setup.sh +++ b/dracut-module-setup.sh @@ -67,14 +67,17 @@ kdump_setup_dns() { }

#$1: netdev name -#checking /etc/sysconfig/network-scripts/ifcfg-$1, +#$2: srcaddr #if it use static ip echo it, or echo null kdump_static_ip() {
. /etc/sysconfig/network-scripts/ifcfg-$1

if [ -n "$IPADDR" ]; then
  [ -z "$NETMASK" -a -n "$PREFIX" ] && \
      NETMASK=$(ipcalc -m $IPADDR/$PREFIX | cut -d'=' -f2)
  echo -n "${IPADDR}::${GATEWAY}:${NETMASK}::"
local _netmask _gateway

local _netdev="$1" _srcaddr="$2"

local _ipaddr=$(ip addr show dev $_netdev permanent | \
               awk "/ $_srcaddr\/.* $_netdev\$/{print \$2}")
if [ -n "$_ipaddr" ]; then
  _netmask=$(ipcalc -m $_ipaddr | cut -d'=' -f2)
  _gateway=$(ip route list dev $_netdev | awk '/^default /{print $3}')
  echo -n "${_srcaddr}::${_gateway}:${_netmask}::"
fi
}

@@ -181,7 +184,7 @@ kdump_setup_znet() {

# Setup dracut to bringup a given network interface kdump_setup_netdev() {

local _netdev=$1

local _netdev=$1 _srcaddr=$2

In function kdump_setup_iscsi_device(), we will call kdump_setup_netdev(), I think we need update the arguments passed there.

Thanks WANG Chao

...

 local _static _proto _ip_conf _ip_opts _ifname_opts

 if [ "$(uname -m)" = "s390x" ]; then
@@ -189,7 +192,7 @@ kdump_setup_netdev() { fi
 _netmac=$(kdump_get_mac_addr $_netdev)
_static=$(kdump_static_ip $_netdev)

_static=$(kdump_static_ip $_netdev $_srcaddr) if [ -n "$_static" ]; then _proto=none else

@@ -223,8 +226,9 @@ kdump_setup_netdev() {

#Function:kdump_install_net #$1: config values of net line in kdump.conf +#$2: srcaddr of network device kdump_install_net() {

local _server _netdev

local _server _netdev _srcaddr local config_val="$1"

_server=`echo $config_val | sed 's/.*@//' | cut -d':' -f1`

@@ -239,13 +243,15 @@ kdump_install_net() { if [ -n "`echo $_netdev | grep via`" ] then # we are going to a different subnet
   _srcaddr=`echo $_netdev|awk '{print $7}'|head -n 1`
   _netdev=`echo $_netdev|awk '{print $5;}'|head -n 1`
else # we are on the same subnet
   _srcaddr=`echo $_netdev|awk '{print $5}'|head -n 1`
   _netdev=`echo $_netdev|awk '{print $3}'|head -n 1`
fi
kdump_setup_netdev "${_netdev}"

kdump_setup_netdev "${_netdev}" "${_srcaddr}"

#save netdev used for kdump as cmdline # Whoever calling kdump_install_net() is setting up the default gateway,

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Marc Milgram

27 May 27 May

9:45 a.m.

On 05/27/2014 12:43 AM, WANG Chao wrote:

...

Hi, Marc

Thanks for this fix.

On 05/20/14 at 02:31pm, Marc Milgram wrote:

...
NetworkManager changed the format of ifcfg-device files. They may define static IP addresses with the following format: IPADDR0=192.168.122.100 PREFIX0=24

There may be up to 255 ip addresses for a network device - each with a unique number tagged to the end of IPADDR and PREFIX.

Prior to this fix, kdump only handled static ip addresses defined with IPADDR=192.168.122.100 PREFIX=24

ie. without the number.

The solution is to use "ip" commands to find the correct network information.

Tested with both static and dynamic IP addresses.

v2: Fixed a local variable that was set incorrectly

Signed-off-by: Marc Milgram mmilgram@redhat.com

diff --git a/dracut-module-setup.sh b/dracut-module-setup.sh index 2a16900..bfe1924 100755 --- a/dracut-module-setup.sh +++ b/dracut-module-setup.sh @@ -67,14 +67,17 @@ kdump_setup_dns() { }

#$1: netdev name -#checking /etc/sysconfig/network-scripts/ifcfg-$1, +#$2: srcaddr #if it use static ip echo it, or echo null kdump_static_ip() {
. /etc/sysconfig/network-scripts/ifcfg-$1

if [ -n "$IPADDR" ]; then
  [ -z "$NETMASK" -a -n "$PREFIX" ] && \
      NETMASK=$(ipcalc -m $IPADDR/$PREFIX | cut -d'=' -f2)
  echo -n "${IPADDR}::${GATEWAY}:${NETMASK}::"
local _netmask _gateway

local _netdev="$1" _srcaddr="$2"

local _ipaddr=$(ip addr show dev $_netdev permanent | \
               awk "/ $_srcaddr\/.* $_netdev\$/{print \$2}")
if [ -n "$_ipaddr" ]; then
  _netmask=$(ipcalc -m $_ipaddr | cut -d'=' -f2)
  _gateway=$(ip route list dev $_netdev | awk '/^default /{print $3}')
  echo -n "${_srcaddr}::${_gateway}:${_netmask}::"
fi
}
@@ -181,7 +184,7 @@ kdump_setup_znet() {

# Setup dracut to bringup a given network interface kdump_setup_netdev() {

local _netdev=$1

local _netdev=$1 _srcaddr=$2
In function kdump_setup_iscsi_device(), we will call kdump_setup_netdev(), I think we need update the arguments passed there.

Thanks, and good catch. I will send v3 momentarily.

Self-NAK

-Marc

...

...
  local _static _proto _ip_conf _ip_opts _ifname_opts

  if [ "$(uname -m)" = "s390x" ]; then
@@ -189,7 +192,7 @@ kdump_setup_netdev() { fi
  _netmac=$(kdump_get_mac_addr $_netdev)
_static=$(kdump_static_ip $_netdev)

_static=$(kdump_static_ip $_netdev $_srcaddr) if [ -n "$_static" ]; then _proto=none else

@@ -223,8 +226,9 @@ kdump_setup_netdev() {

#Function:kdump_install_net #$1: config values of net line in kdump.conf +#$2: srcaddr of network device kdump_install_net() {

local _server _netdev

local _server _netdev _srcaddr local config_val="$1"

_server=`echo $config_val | sed 's/.*@//' | cut -d':' -f1`

@@ -239,13 +243,15 @@ kdump_install_net() { if [ -n "`echo $_netdev | grep via`" ] then # we are going to a different subnet
   _srcaddr=`echo $_netdev|awk '{print $7}'|head -n 1`
    _netdev=`echo $_netdev|awk '{print $5;}'|head -n 1`
else
    # we are on the same subnet
   _srcaddr=`echo $_netdev|awk '{print $5}'|head -n 1`
    _netdev=`echo $_netdev|awk '{print $3}'|head -n 1`
fi
kdump_setup_netdev "${_netdev}"

kdump_setup_netdev "${_netdev}" "${_srcaddr}"

#save netdev used for kdump as cmdline # Whoever calling kdump_install_net() is setting up the default gateway,

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6 comments

4 participants

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participants (4)

Dave Young
Marc Milgram
Vivek Goyal
WANG Chao