X-Git-Url: http://git.grml.org/?a=blobdiff_plain;f=scripts%2Fboot%2F9990-networking.sh;fp=scripts%2Fboot%2F9990-networking.sh;h=cdec92a98a963194f261e17075530e8f8a733a43;hb=e3b11d9a5aa8df89c435118c12d92f9c4201ad85;hp=d9607b795d1093b508bd07a0a624728f1fbaae8b;hpb=bba6bf638e638ba6556ef335d34ec03433b86a9d;p=live-boot-grml.git

diff --git a/scripts/boot/9990-networking.sh b/scripts/boot/9990-networking.sh
index d9607b7..cdec92a 100755
--- a/scripts/boot/9990-networking.sh
+++ b/scripts/boot/9990-networking.sh
@@ -2,6 +2,57 @@
 
 #set -e
 
+Device_from_bootif ()
+{
+	# support for Syslinux IPAPPEND parameter
+	# it sets the BOOTIF variable on the kernel parameter
+
+	if [ -n "${BOOTIF}" ]
+	then
+	# pxelinux sets BOOTIF to a value based on the mac address of the
+	# network card used to PXE boot, so use this value for DEVICE rather
+	# than a hard-coded device name from initramfs.conf. this facilitates
+	# network booting when machines may have multiple network cards.
+	# pxelinux sets BOOTIF to 01-$mac_address
+
+	# strip off the leading "01-", which isn't part of the mac
+	# address
+	temp_mac=${BOOTIF#*-}
+
+	# convert to typical mac address format by replacing "-" with ":"
+	bootif_mac=""
+	IFS='-'
+	for x in $temp_mac
+	do
+		if [ -z "$bootif_mac" ]
+		then
+			bootif_mac="$x"
+		else
+			bootif_mac="$bootif_mac:$x"
+		fi
+	done
+	unset IFS
+
+	# look for devices with matching mac address, and set DEVICE to
+	# appropriate value if match is found.
+
+	for device in /sys/class/net/*
+	do
+		if [ -f "$device/address" ]
+		then
+		current_mac=$(cat "$device/address")
+
+			if [ "$bootif_mac" = "$current_mac" ]
+			then
+				DEVICE=${device##*/}
+				break
+			fi
+		fi
+	done
+	fi
+
+}
+
 do_netsetup ()
 {
 	modprobe -q af_packet # For DHCP
@@ -14,52 +65,8 @@ do_netsetup ()
 
 	if [ -z "${NETBOOT}" ] && [ -z "${FETCH}" ] && [ -z "${HTTPFS}" ] && [ -z "${FTPFS}" ]
 	then
-		# support for Syslinux IPAPPEND parameter
-		# it sets the BOOTIF variable on the kernel parameter
-
-		if [ -n "${BOOTIF}" ]
-		then
-			# pxelinux sets BOOTIF to a value based on the mac address of the
-			# network card used to PXE boot, so use this value for DEVICE rather
-			# than a hard-coded device name from initramfs.conf. this facilitates
-			# network booting when machines may have multiple network cards.
-			# pxelinux sets BOOTIF to 01-$mac_address
-
-			# strip off the leading "01-", which isn't part of the mac
-			# address
-			temp_mac=${BOOTIF#*-}
-
-			# convert to typical mac address format by replacing "-" with ":"
-			bootif_mac=""
-			IFS='-'
-			for x in $temp_mac
-			do
-				if [ -z "$bootif_mac" ]
-				then
-					bootif_mac="$x"
-				else
-					bootif_mac="$bootif_mac:$x"
-				fi
-			done
-			unset IFS
-
-			# look for devices with matching mac address, and set DEVICE to
-			# appropriate value if match is found.
-
-			for device in /sys/class/net/*
-			do
-				if [ -f "$device/address" ]
-				then
-					current_mac=$(cat "$device/address")
-
-					if [ "$bootif_mac" = "$current_mac" ]
-					then
-						DEVICE=${device##*/}
-						break
-					fi
-				fi
-			done
-		fi
+		# See if we can select the device from BOOTIF
+		Device_from_bootif
 
 		# if ethdevice was not specified on the kernel command line
 		# make sure we try to get a working network configuration