- # If user force to use specific device, write it
- for ARGUMENT in ${LIVE_BOOT_CMDLINE}
- do
- case "${ARGUMENT}" in
- live-netdev=*)
- NETDEV="${ARGUMENT#live-netdev=}"
- # net device could be specified by MAC address
- hex="[0-9A-Fa-f][0-9A-Fa-f]"
- case "${NETDEV}" in
- ${hex}:${hex}:${hex}:${hex}:${hex}:${hex})
- # MAC address; record it and select later
- netdev_mac_addr="${NETDEV}"
- ;;
- *)
- # interface name
- echo "DEVICE=$NETDEV" >> /conf/param.conf
- echo "Found live-netdev parameter, forcing to to use network device $NETDEV."
- return
- ;;
- esac
- ;;
- esac
- done
- else
- l_interfaces="$DEVICE"
- fi
+ # If user force to use specific device, write it
+ for ARGUMENT in ${LIVE_BOOT_CMDLINE}
+ do
+ case "${ARGUMENT}" in
+ live-netdev=*)
+ NETDEV="${ARGUMENT#live-netdev=}"
+
+ # Check if NETDEV is a valid MAC address
+ if echo "$NETDEV" | grep -Eq '^[0-9A-Fa-f]{2}[:-]([0-9A-Fa-f]{2}[:-]){4}[0-9A-Fa-f]{2}$'
+ then
+ echo "NETDEV is a valid MAC address."
+
+ # Retrieve the device name associated with the MAC address
+ DEVICE_NAME=$(ip -o link | awk -v mac="$NETDEV" '$0 ~ mac{print substr($2, 1, length($2)-1)}')
+ if [ -n "$DEVICE_NAME" ]
+ then
+ echo "Device name for MAC address $NETDEV is $DEVICE_NAME."
+ NETDEV="$DEVICE_NAME"
+ fi
+ else
+ echo "NETDEV is not a valid MAC address. Assuming it is a device name."
+ fi
+
+ echo "DEVICE=$NETDEV" >> /conf/param.conf
+ echo "Found live-netdev parameter, forcing it to use network device $NETDEV."
+ Wait_for_carrier "$NETDEV"
+ return
+ ;;
+ esac
+ done
+ else
+ l_interfaces="$DEVICE"
+ fi