Adding support for resolving DNS names from initramfs, thanks to Michal Suchanek <hramrach@centrum.cz> for initial patch which this is based on (Closes: #589659).

2 files changed, 41 insertions, 0 deletions

diff --git a/hooks/live b/hooks/live
index d87bfe7..34d6eab 100755
--- a/hooks/live
+++ b/hooks/live
@@ -24,6 +24,20 @@ esac
 
 # live-boot hook
 
+# Reading configuration file from filesystem
+if [ -e /etc/live/boot.conf ]
+then
+	. /etc/live/boot.conf
+fi
+
+if ls /etc/live/boot.conf.d/* > /dev/null 2>&1
+then
+	for _FILE in /etc/live/boot.conf.d/*
+	do
+		. ${_FILE}
+	done
+fi
+
 # Handling live-boot
 
 # Configuration
@@ -226,3 +240,14 @@ then
     manual_add_modules iscsi_tcp
     manual_add_modules crc32c
 fi
+
+if [ "${LIVE_DNS}" = "true" ]
+then
+	#copy_exec /lib/libnss_files.so.*      /lib  # /etc/hosts and /etc/passwd
+	copy_exec /lib/libnss_dns.so.*      /lib  # DNS server
+	#copy_exec /lib/libnss_compat.so.*      /lib  # /etc/passwd
+
+	# Configuration file - may be needed if /etc/hosts is used.
+	#mkdir -p $DESTDIR/etc
+	#cp -p /etc/nsswitch.conf $DESTDIR/etc
+fi
diff --git a/scripts/live b/scripts/live
index f5f4ad2..295b75f 100755
--- a/scripts/live
+++ b/scripts/live
@@ -639,6 +639,22 @@ do_netsetup ()
 		HWADDR="$(cat /sys/class/net/${DEVICE}/address)"
 	fi
 
+	if [ ! -e "/etc/resolv.conf" ]
+	then
+		echo "Creating /etc/resolv.conf"
+
+		if [ -n "${DNSDOMAIN}" ]
+		then
+			echo "domain ${DNSDOMAIN}" > /etc/resolv.conf
+			echo "search ${DNSDOMAIN}" > /etc/resolv.conf
+		fi
+
+		for i in ${IPV4DNS0} ${IPV4DNS1} ${IPV4DNS1}
+		do
+			echo "nameserver $i" >> /etc/resolv.conf
+		done
+	fi
+
 	# Check if we have a network device at all
 	if ! ls /sys/class/net/"$DEVICE" > /dev/null 2>&1 && \
 	   ! ls /sys/class/net/eth0 > /dev/null 2>&1 && \