initramfs-tools: add sources and use them.

* Add source files directly to avoid recreating patches and
  patches lots of times with no gain.
* Add du and expr busybox symlinks at init time.

Bump revision.

--HG--
extra : convert_revision : 4928750b0110f43cde577f6068e79bd0675c64cf

templates/initramfs-tools/files/scripts/nfs

@@ -0,0 +1,85 @@
+# NFS filesystem mounting			-*- shell-script -*-
+
+# FIXME This needs error checking
+
+retry_nr=0
+
+# parse nfs bootargs and mount nfs 
+do_nfsmount()
+{
+
+	configure_networking
+
+	# get nfs root from dhcp
+	if [ "x${NFSROOT}" = "xauto" ]; then
+		# check if server ip is part of dhcp root-path
+		if [ "${ROOTPATH#*:}" = "${ROOTPATH}" ]; then
+			NFSROOT=${ROOTSERVER}:${ROOTPATH}
+		else
+			NFSROOT=${ROOTPATH}
+		fi
+
+	# nfsroot=[<server-ip>:]<root-dir>[,<nfs-options>]
+	elif [ -n "${NFSROOT}" ]; then
+		# nfs options are an optional arg
+		if [ "${NFSROOT#*,}" != "${NFSROOT}" ]; then
+			NFSOPTS="-o ${NFSROOT#*,}"
+		fi
+		NFSROOT=${NFSROOT%%,*}
+		if [ "${NFSROOT#*:}" = "$NFSROOT" ]; then
+			NFSROOT=${ROOTSERVER}:${NFSROOT}
+		fi
+	fi
+
+	if [ -z "${NFSOPTS}" ]; then
+		NFSOPTS="-o retrans=10"
+	fi
+
+	[ "$quiet" != "y" ] && log_begin_msg "Running /scripts/nfs-premount"
+	run_scripts /scripts/nfs-premount
+	[ "$quiet" != "y" ] && log_end_msg
+
+	if [ ${readonly} = y ]; then
+		roflag="-o ro"
+	else
+		roflag="-o rw"
+	fi
+
+	nfsmount -o nolock ${roflag} ${NFSOPTS} ${NFSROOT} ${rootmnt}
+}
+
+# NFS root mounting
+mountroot()
+{
+	[ "$quiet" != "y" ] && log_begin_msg "Running /scripts/nfs-top"
+	run_scripts /scripts/nfs-top
+	[ "$quiet" != "y" ] && log_end_msg
+
+	modprobe nfs
+	# For DHCP
+	modprobe af_packet
+
+	wait_for_udev 10
+
+	# Default delay is around 180s
+	# FIXME: add usplash_write info
+	if [ -z "${ROOTDELAY}" ]; then
+		delay=180
+	else
+		delay=${ROOTDELAY}
+	fi
+
+	# loop until nfsmount succeds
+	while [ ${retry_nr} -lt ${delay} ] && [ ! -e ${rootmnt}${init} ]; do
+		[ ${retry_nr} -gt 0 ] && \
+		[ "$quiet" != "y" ] && log_begin_msg "Retrying nfs mount"
+		do_nfsmount
+		retry_nr=$(( ${retry_nr} + 1 ))
+		[ ! -e ${rootmnt}${init} ] && /bin/sleep 1
+		[ ${retry_nr} -gt 0 ] && [ "$quiet" != "y" ] && log_end_msg
+	done
+
+	[ "$quiet" != "y" ] && log_begin_msg "Running /scripts/nfs-bottom"
+	run_scripts /scripts/nfs-bottom
+	[ "$quiet" != "y" ] && log_end_msg
+}