Fix PXE boot when multiple interfaces are available (#19)

patches/archiso-fix-pxeboot-multiple-interfaces.patch

@@ -0,0 +1,60 @@
+diff --git a/archiso/initcpio/hooks/archiso_pxe_common b/archiso/initcpio/hooks/archiso_pxe_common
+index 2380ca3..fa2a6a0 100644
+--- a/archiso/initcpio/hooks/archiso_pxe_common
++++ b/archiso/initcpio/hooks/archiso_pxe_common
+@@ -3,6 +3,8 @@
+ run_hook () {
+     # Do *not* declare 'bootif_dev' local! We need it in run_latehook().
+     local i net_mac bootif_mac
++    local ifdevlist
++    local ipcfgres
+     # These variables will be parsed from /tmp/net-*.conf generated by ipconfig
+     local DEVICE
+     local IPV4ADDR IPV4BROADCAST IPV4NETMASK IPV4GATEWAY IPV4DNS0 IPV4DNS1
+@@ -19,18 +21,40 @@ run_hook () {
+                 if [[ "${bootif_mac}" == "${net_mac}" ]]; then
+                     bootif_dev=${i#/sys/class/net/}
+                     bootif_dev=${bootif_dev%/address}
++                    ifdevlist="${bootif_dev}"
+                     break
+                 fi
+             done
+-	    if [[ "${ip}" == "dhcp" ]]; then
+-                ip=":::::${bootif_dev}:dhcp"
+-	    else
+-                ip="${ip}::${bootif_dev}"
+-            fi
++        else
++          for i in /sys/class/net/*; do
++              bootif_dev=${i#/sys/class/net/}
++              if [[ "${bootif_dev}" != 'lo' ]]; then
++                  ifdevlist="${ifdevlist} ${bootif_dev}"
++              fi
++          done
+         fi
+ 
++        for bootif_dev in ${ifdevlist}
++        do
++	          if [[ "${ip}" == "dhcp" ]]; then
++                ipopt=":::::${bootif_dev}:dhcp"
++	          else
++                ipopt="${ip}::${bootif_dev}"
++            fi
++
++            # setup network and save some values
++            echo "Attempting to configure network interface ${bootif_dev} ..."
++            ipconfig -t 20 "ip=${ipopt}"
++            ipcfgres=$?
++            if [[ ${ipcfgres} -eq 0 ]]; then
++                echo "SUCCESS: Network interface ${bootif_dev} has been successfully configured"
++                sleep 1
++                break
++            fi
++        done
++
+         # setup network and save some values
+-        if ! ipconfig -t 20 "ip=${ip}"; then
++        if [[ ${ipcfgres} -ne 0 ]]; then
+                 echo "ERROR; Failed to configure network"
+                 echo "   Falling back to interactive prompt"
+                 echo "   You can try to fix the problem manually, log out when you are finished"