Added LiveCD udev support.

git-svn-id: svn+ssh://svn.gentoo.org/var/svnroot/genkernel/trunk@126 67a159dc-881f-0410-a524-ba9dfbe2cb84

gen_cmdline.sh

@@ -238,7 +238,7 @@ parse_cmdline() {
 		      print_info 2 "CMD_NOINITRDMODULES: $CMD_NOINITRDMODULES"
 	      ;;
 	      --udev)
-		      CMD_UDEV=0
+		      CMD_UDEV=1
 		      print_info 2 "CMD_UDEV: $CMD_UDEV"
 	      ;;
 	      --callback*)

gen_compile.sh

@@ -482,17 +482,22 @@ compile_udev() {
 		print_info 1 'udev: >> Compiling...'
 		ln -snf "${KERNEL_DIR}" klibc/linux ||
 			gen_die "Could not link to ${KERNEL_DIR}"
-		compile_generic 'USE_KLIBC=true USE_LOG=false DEBUG=false udevdir=/dev all etc/udev/udev.conf' utils
+		compile_generic "KERNEL_DIR=$KERNEL_DIR USE_KLIBC=true USE_LOG=false DEBUG=false udevdir=/dev all etc/udev/udev.conf" utils
 		strip udev || gen_die 'Failed to strip the udev binary!'
 
 		print_info 1 '      >> Installing...'
-		install -d "${TEMP}/udev/etc/udev" "${TEMP}/udev/sbin" ||
+		install -d "${TEMP}/udev/etc/udev" "${TEMP}/udev/sbin" "${TEMP}/udev/etc/udev/scripts" "${TEMP}/udev/etc/udev/rules.d" "${TEMP}/udev/etc/udev/permissions.d" ||
 			gen_die 'Could not create directory hierarchy'
 		install -m 0755 udev "${TEMP}/udev/sbin" ||
-			gen_die 'Could not install udev binary'
+			gen_die 'Could not install udev binary!'
-		install -m 0644 etc/udev/udev.conf "etc/udev/udev.rules" \
+		install -m 0644 etc/udev/udev.conf "${TEMP}/udev/etc/udev" ||
-			"etc/udev/udev.permissions" "${TEMP}/udev/etc/udev" ||
+				gen_die 'Could not install udev configuration!'
-				gen_die 'Could not install udev configuration'
+		install -m 0644 etc/udev/udev.rules.gentoo "${TEMP}/udev/etc/udev/rules.d/50-udev.rules" ||
+				gen_die 'Could not install udev rules!'
+		install -m 0644 etc/udev/udev.permissions "${TEMP}/udev/etc/udev/permissions.d/50-udev.permissions" ||
+				gen_die 'Could not install udev permissions!'
+		install -m 0755 extras/ide-devfs.sh "${TEMP}/udev/etc/udev/scripts" ||
+			gen_die 'Could not install udev scripts!'
 
 		cd "${TEMP}/udev"
 		print_info 1 '      >> Copying to bincache...'

gen_determineargs.sh

@@ -190,4 +190,11 @@ determine_real_args() {
 	else
 		OLDCONFIG=0
 	fi
+
+	if isTrue "${CMD_UDEV}"
+	then
+		UDEV=1
+	else
+		UDEV=0
+	fi
 }

gen_initrd.sh

@@ -80,7 +80,7 @@ create_base_initrd_sys() {
 	bunzip2 "${TEMP}/initrd-temp/bin/devfsd.bz2" || gen_die "could not uncompress devfsd"
 	chmod +x "${TEMP}/initrd-temp/bin/devfsd"
 
-	[ "${CMD_UDEV}" ] && { tar -jxpf "${UDEV_BINCACHE}" -C "${TEMP}/initrd-temp" ||
+	[ "${UDEV}" -eq '1' ] && { tar -jxpf "${UDEV_BINCACHE}" -C "${TEMP}/initrd-temp" ||
 		gen_die "Could not extract udev binary cache!"; }
 
 # We make our own devfsd.conf these days, the default one doesn't work with the stripped

generic/initrd.scripts

@@ -50,3 +50,30 @@ findcdmount() {
 kill_devfsd() {
 	killall devfsd > /dev/null 2>&1
 }
+
+runUdev() {
+	export ACTION=add
+	export UDEV_NO_SLEEP=1
+
+	# Add block devices and their partitions to /dev,
+	# using information from /sys, and only those
+	# devices (since other are not needed for boot).
+
+	for x in block/*
+	do
+		export DEVPATH="/${x}"
+		/sbin/udev block
+
+		for y in ${x}/*
+		do
+			if [ -f "${y}/dev" ]
+			then
+				export DEVPATH="/${y}"
+				/sbin/udev block
+			fi
+		done
+	done
+	cd /
+
+	unset -v ACTION DEVPATH UDEV_NO_SLEEP
+}

generic/linuxrc

@@ -106,94 +106,80 @@ chooseKeymap() {
 	fi
 }
 
-if [ "${DO_keymap}" ]
+[ "${DO_keymap}" ] && chooseKeymap
-then
+echo -e "${GOOD}>>${NORMAL}${BOLD} Mounting filesystems${NORMAL}"
-	chooseKeymap
-fi
 
-echo -e "${GOOD}>>${NORMAL}${BOLD} Mounting filesystems...${NORMAL}"
+# Check udev is on...
+[ "${KMAJOR}" -ge 2 ] && USE_UDEV_SUPPORT=1
+[ "${KMAJOR}" -eq 2 -a "${KMINOR}" -ge '6' ] && USE_UDEV_SUPPORT=1
+[ "${USE_UDEV_SUPPORT}" -eq '1' -a -f /sbin/udev -a "${USE_UDEV_NORMAL}" -ne 0 ] && USE_UDEV_NORMAL=1
+
+# Disable udev support if /dev is already mounted as devfs
+[ -e /dev/.devfsd ] && USE_UDEV_NORMAL=0
+
+# If using 2.4 and udev; back off...
+[ "${KMAJOR}" -eq 2 -a "${KMINOR}" -lt '6' -a "${USE_UDEV_NORMAL}" -eq 1 ] &&
+	USE_UDEV_NORMAL=0
 
 mkdir /newroot
 if [ "${CDROOT}" -eq '1' ]
 then
 	mount -t tmpfs tmpfs /newroot
-	mkdir /newroot/dev /newroot/mnt /newroot/mnt/cdrom /newroot/mnt/livecd /newroot/tmp /newroot/tmp/.initrd /newroot/mnt/gentoo
+	mkdir /newroot/dev /newroot/mnt /newroot/mnt/cdrom /newroot/mnt/livecd /newroot/tmp /newroot/tmp/.initrd /newroot/mnt/gentoo /newroot/sys
-	[ ! -e /newroot/dev/.devfsd ] && mount -t devfs devfs /newroot/dev
+	if [ "${USE_UDEV_NORMAL}" -eq '1' ]
-	devfsd /newroot/dev -np
+	then
-	sleep 1
+		# Udev is semi-broken on non /sys sysfs mount points.
+		mount -t sysfs sys /sys 2> /dev/null
+		mount -t sysfs sys /newroot/sys 2> /dev/null
+		[ "$?" -eq '0' ] || USE_UDEV_NORMAL=0
+	fi
 
-	findcdmount /newroot/dev/cdroms/*
+	if [ "${USE_UDEV_NORMAL}" -eq '1' ]
-	# not in /dev/cdroms try /dev/ide/cd
-	if [ "${REAL_ROOT}" = '' ]
 	then
-		findcdmount /newroot/dev/ide/cd/*
+		cd /sys
+		runUdev
+		mv /dev/* /newroot/dev
+	else
+		if [ ! -e /newroot/dev/.devfsd ]
+		then
+			mount -t devfs devfs /newroot/dev
+			devfsd /newroot/dev -np
+			sleep 1
+		fi
 	fi
 
+	findcdmount /newroot/dev/cdroms/*
+
+	# Not in /dev/cdroms: try /dev/ide/cd
+	[ "${REAL_ROOT}" = '' ] && findcdmount /newroot/dev/ide/cd/*
 	if [ "${REAL_ROOT}" = '' ]
 	then
-		exec /bin/ash
+		# Undo stuff
+		umount /newroot/dev 2>/dev/null
+		umount /newroot/sys 2>/dev/null
+		umount /sys 2>/dev/null
 
-		# Undo stuff	
-		# kill_devfsd # We run devfsd with -np now
-		sleep 1
-		umount /newroot/dev/
-		sleep 1
 		umount /newroot
-		# shouldn't be anything in here b/c it was on tmpfs
 		rm -rf /newroot/*
+
+		echo 'Could not find CD to boot, something else needed!'
 		CDROOT=0
-		echo "Could not find CD to boot, gonna need something else"
 	fi
 fi
 
-# Check udev is on...
-[ "${KMAJOR}" -ge 2 ] && USE_UDEV_SUPPORT=1
-[ "${KMAJOR}" -eq 2 -a "${KMINOR}" -ge '6' ] && USE_UDEV_SUPPORT=1
-[ "${USE_UDEV_SUPPORT}" -eq '1' -a -f /sbin/udev -a "${USE_UDEV_NORMAL}" -ne 0 ] && USE_UDEV_NORMAL=1
-
-# Disable udev support if /dev is already mounted as devfs
-[ -e /dev/.devfsd ] && USE_UDEV_NORMAL=0
-
-# If using 2.4 and udev; back off...
-[ "${KMAJOR}" -eq 2 -a "${KMINOR}" -lt '6' -a "${USE_UDEV_NORMAL}" -eq 1 ] &&
-	USE_UDEV_NORMAL=0
-
 # Try to mount sysfs, and if it fails, do not use udev
 if [ "${USE_UDEV_NORMAL}" -eq '1' -a "${CDROOT}" -eq '0' ]
 then
 	mount -t sysfs sys /sys 2> /dev/null
-	[ "$?" -eq "0" ] || USE_UDEV_NORMAL=0
+	[ "$?" -eq '0' ] || USE_UDEV_NORMAL=0
 fi
 
-# Don't do else b/c we set CDROOT=0 if it fails to detect
+# Don't merge these two blocks; ^^ USE_UDEV_NORMAL=0...
 if [ "${USE_UDEV_NORMAL}" -eq '1' -a "${CDROOT}" -eq '0' ]
 then
 	USE_DEVFS_NORMAL=0
-	export ACTION=add
-	export UDEV_NO_SLEEP=1
-
-	# Add block devices and their partitions to /dev,
-	# using information from /sys, and only those
-	# devices (since other are not needed for boot).
-
 	cd /sys
-	for x in block/*
+	runUdev
-	do
-		export DEVPATH="/${x}"
-		/sbin/udev block
-
-		for y in ${x}/*
-		do
-			if [ -f "${y}/dev" ]
-			then
-				export DEVPATH="/${y}"
-				/sbin/udev block
-			fi
-		done
-	done
-	cd /
-
-	unset -v ACTION DEVPATH UDEV_NO_SLEEP
 elif [ "${CDROOT}" -eq '0' -a "${USE_DEVFS_NORMAL}" -eq '1' ]
 then
 	[ ! -e /dev/.devfsd ] && mount -t devfs devfs /dev
@@ -247,8 +233,8 @@ do
 		break
 	else
 		echo -e "${GOOD}>>${NORMAL}${BOLD} Mounting root...${NORMAL}"
-
 		mount -o rw ${REAL_ROOT} /newroot
+
 		if [ "$?" = '0' ]
 		then
 			break
@@ -387,20 +373,16 @@ then
 	umount /tmp/.initrd/proc || echo '*: Failed to unmount the initrd /proc!'
 	mount -n --move /tmp/.initrd/dev dev || echo '*: Failed to move over the /dev tree!'
 	rm /tmp/.initrd/dev -rf || '*: Failed to remove the initrd /dev!'
-elif [ "${USE_UDEV_NORMAL}" -eq '1' -a "${CDROOT}" -eq '0' ]
+elif [ "${USE_UDEV_NORMAL}" -eq '1' ]
 then
 	umount /tmp/.initrd/proc || echo '*: Failed to unmount the initrd /proc!'
 	umount /tmp/.initrd/sys || echo '*: Failed to unmount the initrd /sys!'
 elif [ "${CDROOT}" -eq '1' ]
 then
-	# If automount at boot was on with devfs, we'll want to umount it
+	umount /tmp/.initrd/proc || echo "*: Failed to unmount the initrd /proc!"
-	# also umount proc
-	mount -t proc proc /proc
-	umount /tmp/.initrd/proc > /dev/null 2>&1 || echo "*: Failed to unmount /tmp/.initrd/proc!"
 	umount /dev > /dev/null 2>&1
 	mount -n --move /tmp/.initrd/dev dev || echo '*: Failed to move over the /dev tree!'
 	rm /tmp/.initrd/dev -rf || '*: Failed to remove the initrd /dev!'
-	umount /proc > /dev/null 2>&1
 fi
 echo -n '.'
 

genkernel

@@ -1,7 +1,7 @@
 #!/bin/bash
 # Genkernel v3
 
-GK_V='3.0.2e'
+GK_V='3.0.2f'
 TEMP='/var/tmp/genkernel'
 TODEBUGCACHE=1 # Until an error occurs or DEBUGFILE is fully qualified.
 
@@ -216,7 +216,8 @@ then
 	fi
 
 	compile_devfsd
-	[ "${CMD_UDEV}" ] && compile_udev
+	[ "${VER}" -gt '2' ] || [ "${VER}" -eq '2' -a "${PAT}" -ge '6' ] && UDEV=1 && print_info 1 'udev: Target is a 2.6 kernel, support enabled.'
+	[ "${UDEV}" -eq '1' ] && compile_udev
 
 	# Create initrd
 	create_initrd