Rewrite the core parts in C. We now provide librc so other programs can

query runlevels, services and state without using bash. We also provide
libeinfo so other programs can easily use our informational functions.

As such, we have dropped the requirement of using bash as the init script
shell. We now use /bin/sh and have strived to make the scripts as portable
as possible. Shells that work are bash and dash. busybox works provided
you disable s-s-d. If you have WIPE_TMP set to yes in conf.d/bootmisc you
should disable find too.
zsh and ksh do not work at this time.

Networking support is currently being re-vamped also as it was heavily bash
array based. As such, a new config format is available like so
config_eth0="1.2.3.4/24 5.6.7.8/16"
or like so
config_eth0="'1.2.3.4 netmask 255.255.255.0' '5.6.7.8 netmask 255.255.0.0'"

We will still support the old bash array format provided that /bin/sh IS
a link it bash.

ChangeLog for baselayout-1 can be found in our SVN repo.

1 files changed, 149 insertions, 0 deletions

diff --git a/init.d/checkroot b/init.d/checkroot
new file mode 100755
index 00000000..c7fb66d3
--- /dev/null
+++ b/init.d/checkroot
@@ -0,0 +1,149 @@
+#!/sbin/runscript
+# Copyright 1999-2007 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+do_mtab() {
+	# Don't create mtab if /etc is readonly
+	if ! touch /etc/mtab 2> /dev/null ; then
+		ewarn "Skipping /etc/mtab initialization" "(ro root?)"
+		return 0
+	fi
+
+	# Clear the existing mtab
+	> /etc/mtab
+
+	# Add the entry for / to mtab
+	mount -f /
+
+	# Don't list root more than once
+	grep -v "^[^ ]* / " /proc/mounts >> /etc/mtab
+
+	# Now make sure /etc/mtab have additional info (gid, etc) in there
+	local mnt= mnts="$(mountinfo | sed -e "s/^/'/g" -e "s/$/'/g")"
+	eval set -- ${mnts}
+	for mnt in "$@" ; do
+		if fstabinfo --mount-cmd "${mnt}" >/dev/null ; then
+			mount -f -o remount "${mnt}"
+		fi
+	done
+
+	# Remove stale backups
+	rm -f /etc/mtab~ /etc/mtab~~
+}
+
+start() {
+	local retval=0
+
+	# Don't bother doing a fsck on these
+	if [ -n "${CDBOOT}" ] || is_net_fs / || is_union_fs / ; then
+		return 0
+	fi
+
+	if touch /.test.$$ 2> /dev/null ; then
+		einfo "root filesystem is mounted read-write - skipping"
+		rm -f /.test.$$
+		return 0
+	fi
+
+	if get_bootparam "forcefsck" ; then
+		ebegin "Checking root filesystem (full fsck forced)"
+		if [ "${RC_UNAME}" = "Linux" ] ; then
+			fsck -C -a -f /
+		else
+			fsck -F /
+		fi
+		# /forcefsck isn't deleted because checkfs needs it.
+		# it'll be deleted in that script.
+		retval=$?
+	else
+		# Obey the fs_passno setting for / (see fstab(5))
+		# - find the / entry
+		# - make sure we have 6 fields
+		# - see if fs_passno is something other than 0
+		local pass=$(fstabinfo --passno /)
+		if [ ${pass:-0} != "0" ] ; then
+			ebegin "Checking root filesystem"
+			if [ "${RC_UNAME}" = "Linux" ] ; then
+				fsck -C -T -a /
+			else
+				fsck -p -F /
+			fi
+			retval=$?
+		else
+			ebegin "Skipping root filesystem check" "(fstab's passno == 0)"
+			retval=0
+		fi
+	fi
+
+	if [ ${retval} -eq 0 ] ; then
+		eend 0
+	elif [ ${retval} -eq 1 ] ; then
+		ewend 1 "Filesystem repaired"
+		retval=0
+	elif [ ${retval} -eq 8 ] ; then
+		ewend 1 $"Operational error, continuing"
+		retval=0
+	elif [ ${retval} -eq 2 -o ${retval} -eq 3 ] ; then
+		ewend 1 "Filesystem repaired, but reboot needed!"
+		if [ "${RC_FORCE_AUTO}" != "yes" ] ; then
+			printf "\a"; sleep 1; printf "\a"; sleep 1
+			printf "\a"; sleep 1; printf "\a"; sleep 1
+			ewarn "Rebooting in 10 seconds ..."
+			sleep 10
+		fi
+		einfo "Rebooting"
+		/sbin/reboot -f
+	else
+		if [ "${RC_FORCE_AUTO}" = "yes" ] ; then
+			eend 2 "Rerunning fsck in force mode"
+			if [ "${RC_UNAME}" = "Linux" ] ; then
+				fsck -y -C -T /
+			else
+				fsck -y /
+			fi
+			retval=$?
+		else
+			eend 2 "Filesystem couldn't be fixed :("
+			[ "${RC_UNAME}" = "Linux" ] || return 1
+			sulogin "${CONSOLE}"
+		fi
+		if [ ${retval} != "0" ] ; then
+			einfo "Unmounting filesystems"
+			if [ "${RC_UNAME}" = "Linux" ] ; then
+				mount -a -o remount,ro /
+			else
+				mount -u -o ro /
+			fi
+			einfo "Rebooting"
+			reboot -f
+		fi
+	fi
+
+	ebegin "Remounting root filesystem read/write"
+	if [ "${RC_UNAME}" = "Linux" ] ; then
+		mount -n -o remount,rw /
+	else
+		mount -u -o rw /
+	fi
+	eend $? "Root filesystem could not be mounted read/write :(" || return 1
+
+	# Only Linux has mtab
+	[ "${RC_UNAME}" = "Linux" ] && do_mtab
+
+	# If the user's /dev/null or /dev/console are missing, we 
+	# should help them out and explain how to rectify the situation
+	if [ ! -c /dev/null -o ! -c /dev/console ] ; then
+		if [ -e /usr/share/baselayout/issue.devfix ] ; then
+			# Backup current /etc/issue
+			if [ -e /etc/issue -a ! -e /etc/issue.devfix ] ; then
+				mv -f /etc/issue /etc/issue.devfix
+			fi
+			cp -f /usr/share/baselayout/issue.devfix /etc/issue
+		fi
+	fi
+
+	# We got here, so return 0
+	return 0
+}
+
+# vim: set ts=4 :