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kdump fix, initializing network interface on crash kernel boot over master release #18833

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kdump fix, initializing network interface on crash kernel boot over master release #18833

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09edbef
kdump fix, initializing network interface on boot over 2023-11 release
bilal-ismail Apr 30, 2024
6f8be7d
kdump fix, initializing network interface on crash kernel boot over m…
bilal-ismail Apr 30, 2024
203a8df
added sudo keyword to the sed command for tthe intended files to be c…
bilal-ismail May 2, 2024
159f0d5
stream edit command "sed" location changed.
bilal-ismail May 2, 2024
8a09be0
Moved the kdump-tools config script changes to the "sonic_debian_exte…
bilal-ismail May 3, 2024
6253492
in the file_path for sed command we have now added the variable in t…
bilal-ismail May 3, 2024
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7 changes: 7 additions & 0 deletions build_debian.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -844,6 +844,13 @@ sudo mkdir -p $FILESYSTEM_ROOT/var/lib/docker
sudo rm -f $FILESYSTEM_ROOT/etc/resolvconf/resolv.conf.d/original
sudo cp files/image_config/resolv-config/resolv.conf.head $FILESYSTEM_ROOT/etc/resolvconf/resolv.conf.d/head


# Required for kdump_remote_ssh_dump: Initialize network interfaces and enable DHCP.
# Currently used on crash kernel boot only
sudo cp files/scripts/network-interface-state-init.sh $FILESYSTEM_ROOT/usr/sbin/network-interface-state-init.sh
sudo chmod +x $FILESYSTEM_ROOT/usr/sbin/network-interface-state-init.sh


## Optimize filesystem size
if [ "$BUILD_REDUCE_IMAGE_SIZE" = "y" ]; then
sudo scripts/build-optimize-fs-size.py "$FILESYSTEM_ROOT" \
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8 changes: 8 additions & 0 deletions files/build_templates/sonic_debian_extension.j2
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Expand Up @@ -329,6 +329,7 @@ for kernel_release in $(ls $FILESYSTEM_ROOT/lib/modules/); do
done
fi


# Install python-swss-common package and all its dependent packages
{% if python_swss_debs.strip() -%}
{% for deb in python_swss_debs.strip().split(' ') -%}
Expand Down Expand Up @@ -1057,3 +1058,10 @@ sudo rm -rf $FILESYSTEM_ROOT/tmp/mask_disabled_services.py


sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y install python3-dbus


# Edit the kdump-tools package script to call a custom one, which shall enable ethernet interfaces in the crash kernel environment
sudo sed -i "/PATH=\/bin:\/usr\/bin:\/sbin:\/usr\/sbin/a NET_INTERFACE_INIT=/usr/sbin/network-interface-state-init.sh" $FILESYSTEM_ROOT/usr/sbin/kdump-config
sudo sed -i "/Network not reachable/a . $NET_INTERFACE_INIT" $FILESYSTEM_ROOT/usr/sbin/kdump-config


16 changes: 16 additions & 0 deletions files/scripts/network-interface-state-init.sh
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@@ -0,0 +1,16 @@
#!/bin/sh

# Get list of Ethernet interfaces excluding Docker interfaces
interfaces=$(ip -o link show | awk -F': ' '$2 ~ /^e/ && $2 !~ /^docker/ {print $2}')

# Loop through each Ethernet interface
for interface in $interfaces; do
# Check if the interface is already up
if ! ip link show dev $interface | grep -q 'state UP'; then
# Bring up the interface if it's not already up
ip link set dev $interface up || { echo "Failed to bring up interface $interface"; continue; }
fi

# Configure the interface to use DHCP
dhclient $interface || echo "Failed to configure DHCP for interface $interface"
done
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