linuxrc: use "quiet" cmdline argument for a really quiet initramfs initialization

"quiet" is already used by the kernel to avoid printing messages on the
console unless they are errors or warnings. Genkernel should do the same
wrt its initramfs initialization code.
This has also the advantage of improving the boot speed.

defaults/initrd.scripts

@@ -16,15 +16,16 @@ modules_scan() {
 	local loaded
 
 	MODS=$(cat /etc/modules/${1} 2>/dev/null)
-	[ -n "${MODS}" ] && echo -ne "${BOLD}   ::${NORMAL} "
-	[ -n "${MODS}" ] && echo -ne "Loading from ${1}: "
+	[ -n "${MODS}" ] && [ -z "${QUIET}" ] && \
+		echo -ne "${BOLD}   ::${NORMAL} Loading from ${1}: "
 
 	for x in ${MODS}
 	do
 		MLOAD=$(echo ${MLIST} | sed -e "s/.*${x}.*/${x}/")
 		if [ "${MLOAD}" = "${x}" ] # Only module to no-load
 		then
-			echo -e "${BOLD}   ::${NORMAL} Skipping ${x}..."
+			[ -z "${QUIET}" ] && \
+				echo -e "${BOLD}   ::${NORMAL} Skipping ${x}..."
 		elif [ "${MLOAD}" = "${MLIST}" ]
 		then
 			if [ -n "${DEBUG}" ]; then
@@ -33,17 +34,21 @@ modules_scan() {
 			fi
 			modprobe ${x} > /dev/null 2>&1
 			loaded=${?}
+
 			[ -n "${DEBUG}" -a "${loaded}" = "0" ] && \
 				echo "loaded"
 			[ -n "${DEBUG}" -a "${loaded}" != "0" ] && \
 				echo "not loaded"
+
 			[ -z "${DEBUG}" -a "${loaded}" = "0" ] && \
+				[ -z "${QUIET}" ] && \
 				echo -en "${x} "
 		else
-			echo -e "${BOLD}   ::${NORMAL} Skipping ${x}..."
+			[ -z "${QUIET}" ] && \
+				echo -e "${BOLD}   ::${NORMAL} Skipping ${x}..."
 		fi
 	done
-	[ -n "${MODS}" ] && echo
+	[ -n "${MODS}" ] && [ -z "${QUIET}" ] && echo
 }
 
 uppercase(){
@@ -378,6 +383,8 @@ test_success() {
 # $2 hide flag
 
 good_msg() {
+	[ -n "${QUIET}" ] && [ -z "${DEBUG}" ] && return 0
+
 	msg_string=$1
 	msg_string="${msg_string:-...}"
 	[ "$2" != 1 ] && echo -e "${GOOD}>>${NORMAL}${BOLD} ${msg_string} ${NORMAL}"
@@ -424,12 +431,15 @@ prompt_user(){
 	eval local oldvalue='$'${1}
 
 	[ $# != 2 -a $# != 3 ] && \
-		bad_msg "Bad invocation of function prompt_user, please file a bug \
-		report with this message" && exit 1
+		bad_msg "Bad invocation of function prompt_user."
+		bad_msg "Please file a bug report with this message" && exit 1
 	[ -n "${3}" ] && local explnt=" or : ${3}" || local explnt="."
 
 	bad_msg "Could not find the ${2} in ${oldvalue}${explnt}"
-	echo '   Please specify another value or: press Enter for the same, type "shell" for a shell, or "q" to skip...'
+	bad_msg "Please specify another value or:"
+	bad_msg "- press Enter for the same"
+	bad_msg '- type "shell" for a shell'
+	bad_msg '- type "q" to skip...'
 	echo -n "${2}(${oldvalue}) :: "
 	read ${1}
 	case `eval echo '$'${1}` in
@@ -440,7 +450,7 @@ prompt_user(){
 			;;
 		'shell')
 			eval ${1}'='${oldvalue}
-			echo "To leave and try again just press <Ctrl>+D"
+			warn_msg "To leave and try again just press <Ctrl>+D"
 			run_shell
 			;;
 		'')
@@ -600,7 +610,7 @@ chooseKeymap() {
 		splash set_msg "Set keymap to ${keymap}"
 	elif [ -z "${keymap}" ]
 	then
-		echo
+		good_msg
 		good_msg "Keeping default keymap"
 		splash set_msg "Keeping default keymap"
 	else

defaults/linuxrc

@@ -31,8 +31,6 @@ then
 	[ -e /linuxrc ] && rm /linuxrc
 fi
 
-quiet_kmsg
-
 CMDLINE=$(cat /proc/cmdline)
 # Scan CMDLINE for any specified real_root= or cdroot arguments
 FAKE_ROOT=''
@@ -41,6 +39,7 @@ FAKE_ROOTFLAGS=''
 INIT_OPTS=''
 ROOTFSTYPE='auto'
 CRYPT_SILENT=0
+QUIET=''
 
 mkdir -p /etc/cmdline /etc/modprobe.d
 for x in ${CMDLINE}
@@ -118,6 +117,9 @@ do
 				ZPOOL_FORCE=-f
 			fi
 		;;
+		quiet)
+			QUIET=1
+		;;
 		# Debug Options
 		debug)
 			DEBUG='yes'
@@ -270,6 +272,8 @@ do
 	esac
 done
 
+quiet_kmsg
+
 if [ "${CDROOT}" = '0' ]
 then
 	if [ -z "${REAL_ROOT}" -a "${FAKE_ROOT}" != "/dev/ram0" ]
@@ -457,17 +461,13 @@ then
 
 	if [ "${REAL_ROOT}" = '' ]
 	then
-		echo -n -e "${WARN}>>${NORMAL}${BOLD} No bootable medium found. Waiting for new devices"
-
+		warn_msg "No bootable medium found. Waiting for new devices..."
 		COUNTER=0
 		while [ ${COUNTER} -lt 3 ]; do
 			sleep 3
-			echo -n '.'
 			let COUNTER=${COUNTER}+1
 		done
-
 		sleep 1
-		echo -e "${NORMAL}"
 		bootstrapCD
 	fi
 
@@ -909,43 +909,42 @@ fi
 
 verbose_kmsg
 
-echo -ne "${GOOD}>>${NORMAL}${BOLD} Booting (initramfs)${NORMAL}"
+good_msg "Booting (initramfs)"
 
 cd "${CHROOT}"
 mkdir "${CHROOT}/proc" "${CHROOT}/sys" "${CHROOT}/run" 2>/dev/null
-echo -ne "${BOLD}.${NORMAL}"
 
 # If devtmpfs is mounted, try move it to the new root
-# If that fails, try to unmount all possible mounts of devtmpfs as stuff breaks otherwise
+# If that fails, try to unmount all possible mounts of
+# devtmpfs as stuff breaks otherwise
 for fs in /dev /sys /proc
 do
 	if grep -qs "$fs" /proc/mounts
 	then
 		if ! mount --move $fs "${CHROOT}"$fs
 		then
-			umount $fs || echo '*: Failed to move and unmount the ramdisk $fs!'
+			umount $fs || \
+			bad_msg "Failed to move and unmount the ramdisk $fs!"
 		fi
 	fi
 done
 
 if [ ! -e "${CHROOT}/dev/console" ] || [ ! -e "${CHROOT}/dev/null" ]
 then
-	echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing files required to boot (console and null)${NORMAL}"
+	bad_msg "ERROR: your real /dev is missing console and null"
 elif [ -e /etc/initrd.splash -a ! -e "${CHROOT}/dev/tty1" ]
 then
-	echo -ne "${BAD}>>${NORMAL}${BOLD} ERROR: your real /dev is missing tty1, which is required for splash${NORMAL}"
+	bad_msg "ERROR: your real /dev is missing tty1, required for splash"
 fi
 
-echo -e "${BOLD}.${NORMAL}"
-
 exec /sbin/switch_root -c "/dev/console" "${CHROOT}" "${REAL_INIT:-/sbin/init}" "${INIT_OPTS}"
 
 # If we get here, something bad has happened
 splash 'verbose'
 
-echo "A fatal error has probably occured since ${REAL_INIT:-/sbin/init} did not"
-echo "boot correctly. Trying to open a shell..."
-echo
+bad_msg "A fatal error has occured since ${REAL_INIT:-/sbin/init} did not"
+bad_msg "boot correctly. Trying to open a shell..."
+
 exec /bin/bash
 exec /bin/sh
 exec /bin/ash

doc/genkernel.8.txt

@@ -493,6 +493,10 @@ which the ramdisk scripts would recognize.
     switch_root into "<CHROOT>/<SUBDIR>" instead of "<CHROOT>/".
     <CHROOT> is "/newroot" (or "/union") usually.
 
+*quiet*::
+    Do not print anything but error and warning messages during
+    the execution of the initramfs init scripts.
+
 *debug*::
     Drop into a debug shell early in the process.