#! /bin/sh
#
# initscripts postinst
#

set -e

case "$1" in
  configure)
	PREV_VER=$2
	;;
  abort-upgrade|abort-remove|abort-deconfigure)
	exit 0
	;;
esac

umask 022

chrooted() {
  if [ -r /proc/1/root ]; then
    return 1
  fi
  return 0
}

#
# Initialize rcS default file.
#
if [ ! -f /etc/default/rcS ]
then
	cp -p /usr/share/initscripts/default.rcS /etc/default/rcS
else
	# in Ubuntu we use /var/run and /var/lock tmpfses; these are not
	# optional so remove the options from /etc/default/rcS
	if dpkg --compare-versions "$PREV_VER" le-nl "2.87dsf-4ubuntu9"
	then
		sed -i "/^RAMRUN=/d;/^RAMLOCK=/d" /etc/default/rcS
	fi
fi

#
# In 2.86.ds1-7 the "single" script was moved.
# We have to remove the old links _before_ we install new ones.
#
if dpkg --compare-versions "$PREV_VER" lt "2.86.ds1-7"
then
	update-rc.d -f single remove >/dev/null 2>&1 || :
fi

# In 2.86.ds1-16, the mtab.sh and hostname.sh scripts were moved.
if dpkg --compare-versions "$PREV_VER" lt "2.86.ds1-16"
then
	update-rc.d -f mtab.sh remove >/dev/null 2>&1 || :
	update-rc.d -f hostname.sh remove >/dev/null 2>&1 || :
fi

# In 2.86.ds1-21, the sendsigs script were moved, and in 2.86.ds1-35
# it was moved back.
if dpkg --compare-versions "$PREV_VER" lt "2.86.ds1-35"
then
	update-rc.d -f sendsigs remove >/dev/null 2>&1 || :
fi

# In 2.86.ds1-56ubuntu1, the waitnfs.sh was renamed to mountnfs.sh to be in
# sync with Debian again.
if dpkg --compare-versions "$PREV_VER" le-nl "2.86.ds1-56ubuntu1"
then
	update-rc.d -f waitnfs.sh remove >/dev/null 2>&1 || :
fi

#
# In 2.87dsf-2 the "mountoverflowtmp" script was dropped
# from runlevels 0 and 6.
# We have to remove the old links _before_ we install new ones.
#
if dpkg --compare-versions "$PREV_VER" lt "2.87dsf-2" ; then
	update-rc.d -f mountoverflowtmp remove >/dev/null 2>&1 || :
fi

# In 2.87dsf-4ubuntu1, the bootlogs.sh was renamed to bootlogs to be in
# sync with Debian again.
if dpkg --compare-versions "$PREV_VER" le-nl "2.87dsf-4ubuntu1"
then
	update-rc.d -f bootlogs.sh remove >/dev/null 2>&1 || :
fi

# In 2.87dsf-4ubuntu2, we begin migrating to Upstart jobs, so all of
# these get removed.
if dpkg --compare-versions "$PREV_VER" le-nl "2.87dsf-4ubuntu2"
then
	update-rc.d -f hostname.sh remove >/dev/null 2>&1 || :
	update-rc.d -f mountkernfs.sh remove >/dev/null 2>&1 || :
	update-rc.d -f mountdevsubfs.sh remove >/dev/null 2>&1 || :
	update-rc.d -f checkroot.sh remove >/dev/null 2>&1 || :
	update-rc.d -f mtab.sh remove >/dev/null 2>&1 || :
	update-rc.d -f checkfs.sh remove >/dev/null 2>&1 || :
	update-rc.d -f mountall.sh remove >/dev/null 2>&1 || :
	update-rc.d -f mountall-bootclean.sh remove >/dev/null 2>&1 || :
	update-rc.d -f mountoverflowtmp remove >/dev/null 2>&1 || :
	update-rc.d -f mountnfs.sh remove >/dev/null 2>&1 || :
	update-rc.d -f mountnfs-bootclean.sh remove >/dev/null 2>&1 || :
	update-rc.d -f bootmisc.sh remove >/dev/null 2>&1 || :
	update-rc.d -f bootlogs remove >/dev/null 2>&1 || :
	update-rc.d -f rmnologin remove >/dev/null 2>&1 || :
fi


# Previous to 2.87dsf-4ubuntu17.4, /etc/motd sometimes got erroneously copyied
# to /etc/motd.tail.  This stanza is taken from the Oneiric version of this
# file, with the comparison version number appropriately twiddled.
if [ -f /etc/motd.tail ] && \
   dpkg --compare-versions "$PREV_VER" lt "2.87dsf-4ubuntu17.4"
then
	# If the standard help-text from update-motd is found in the
	# /etc/motd.tail file, it has been created from the old /etc/motd
	# file during the initscripts < 2.87dsf-4ubuntu17.4 postinst script,
	# so it should be removed. Give up if the help-text template
	# generator is missing or produces no output.
	help_text=$(/etc/update-motd.d/10-help-text 2>/dev/null || true)
	if [ -n "$help_text" ] && fgrep -q "$help_text" /etc/motd.tail
	then
		rm -f /etc/motd.tail
		# Rebuild the motd now that motd.tail has been fixed.
		run-parts --lsbsysinit /etc/update-motd.d > /var/run/motd.new \
			&& mv /var/run/motd.new /var/run/motd || true
	fi
fi


#
# Okay, we could do this with update-rc.d, but that would probably
# be pretty slow. This way we win some speed.
# DO NOT FOLLOW THIS EXAMPLE IN OTHER PACKAGES.
#
# Links in runlevel S
#
#update-rc.d bootlogd               start 05 S . >/dev/null || exit $?
update-rc.d urandom                start 55 S . start 30 0 6 . >/dev/null || exit $?
#
# Links in runlevels other than S
#
update-rc.d halt                   start 90 0 . >/dev/null || exit $?
update-rc.d reboot                 start 90 6 . >/dev/null || exit $?
update-rc.d umountroot             start 60 0 6 . >/dev/null || exit $?
update-rc.d umountfs               start 40 0 6 . >/dev/null || exit $?
update-rc.d umountnfs.sh           start 31 0 6 . >/dev/null || exit $?
update-rc.d sendsigs               start 20 0 6 . >/dev/null || exit $?

update-rc.d killprocs              start 30 1 . >/dev/null || exit $?
update-rc.d single                 start 90 1 . >/dev/null || exit $?
update-rc.d ondemand               start 99 2 3 4 5 . >/dev/null || exit $?
update-rc.d rc.local               start 99 2 3 4 5 . >/dev/null || exit $?
#update-rc.d stop-bootlogd-single   start 99 S . >/dev/null || exit $?
#update-rc.d stop-bootlogd          start 99 2 3 4 5 . >/dev/null || exit $?

#
# Remove scripts that were left behind by older glibc (<< 2.3.2.ds1-12)
# versions. We have the same functionality in mount{kern,devsub}fs.sh 
#
#
# In 2.86.ds1-10 the "mountvirtfs" script was replaced by
# mountkernfs.sh and mountdevsubfs.sh.  It was removed completely in
# 2.86.ds1-16.
#
for F in mountkernfs devpts.sh mountvirtfs
do
	rm -f /etc/init.d/$F
	update-rc.d $F remove >/dev/null 2>&1 || :
done

#
# Create /var/run and /var/lock on the root partition to make sure
# they are available.
# If mount fail (like in a vserver environment), just clean up and ignore
# it.
#
if dpkg --compare-versions "$PREV_VER" lt "2.86.ds1-22" && ! chrooted
then
	# We need to quickly bind / to another location so we can make them
	# just in case /var is a mountpoint or a symlink to one.
	mkdir -p /.root
	if mount -n --bind / /.root ; then
		if [ -L /.root/var ] && [ ! -d /.root/var ] ; then
			# No use trying if /var is a relative symlink.  It is not
			# going to work.
			:
		else
			mkdir -p /.root/var/run /.root/var/lock
		fi
		umount /.root
	fi
	rmdir /.root
fi

#
# When installing for the first time or upgrading from version before
# 2.86.ds1-27, a reboot is needed to make the /lib/init/rw/ tmpfs
# available.  Flag this using notify-reboot-required.  Not mounting it
# here as it creates problem for debootstrap, vservers, pbuilder and
# cowbuilder.
#
if dpkg --compare-versions "$PREV_VER" lt "2.86.ds1-27" \
 && [ -x /usr/share/update-notifier/notify-reboot-required ]; then
	/usr/share/update-notifier/notify-reboot-required
fi

#
# Create mount point for spufs, and create spu system group
#
if mountpoint -q /proc && grep -qs '^cpu.*Cell' /proc/cpuinfo; then
       if ! getent group spu >/dev/null; then
	       # the adduser package is priority important; cannot use addgroup
	       groupadd -K GID_MAX=1000 spu
       fi
       mkdir -p /spu
       if ! mountpoint -q /spu; then
	       # No need to fail configuration if this isn't possible. Mount
	       # will still display an error. See LP #261490 and #251593.
	       mount -t spufs -ogid=spu spufs /spu || true
       fi
fi

#
# Create initial log files
#
[ "$PREV_VER" ] || chmod 755 /var/log/fsck || :
for F in /var/log/dmesg /var/log/boot /var/log/fsck/checkroot /var/log/fsck/checkfs
do
	if [ ! -f "$F" ] && touch "$F" >/dev/null 2>&1
	then
		echo "(Nothing has been logged yet.)" >| "$F"
		chown root:adm "$F"
		chmod 640 "$F"
	fi
done

#
# Set up nologin symlink so that dynamic-login-disabling will work
# (when DELAYLOGIN is set to "yes")
#
if [ ! -L /etc/nologin ] && [ ! -e /etc/nologin ]
then
	rm -f /var/lib/initscripts/nologin
	ln -s /var/lib/initscripts/nologin /etc/nologin
fi

#
# Set up motd stuff, putting variable file in /var/run/
#
if [ ! -f /etc/motd.tail ]
then
	if [ -f /etc/motd -a ! -L /etc/motd ]
	then
		sed 1d /etc/motd > /etc/motd.tail
		[ -s /etc/motd.tail ] || rm -f /etc/motd.tail
	fi
fi
if [ ! -f /var/run/motd ]
then
	if [ -f /etc/motd ]
	then
		cat /etc/motd > /var/run/motd
	else
		:>/var/run/motd
	fi
fi
if [ ! -L /etc/motd ]
then
	[ -f /etc/default/rcS ] && . /etc/default/rcS
	if [ "$EDITMOTD" = no ]
	then
		cat /var/run/motd > /etc/motd.static
		ln -sf motd.static /etc/motd
	else
		ln -sf /var/run/motd /etc/motd
	fi
fi

#
# Mount kernel virtual filesystems...not.
# This causes problems in pbuilder.
#
#
#if [ -x /etc/init.d/mountkernfs.sh ]
#then
#	if which invoke-rc.d >/dev/null 2>&1
#	then
#		invoke-rc.d mountkernfs.sh start || :
#	else
#		/etc/init.d/mountkernfs.sh start
#	fi
#fi

#
# Create /dev/pts, /dev/shm directories
#
if [ "$(uname -s)" = Linux ]
then
	#
	# Only create /dev/{pts,shm} if /dev is on the
	# root file system. If some package has mounted a
	# seperate /dev (ramfs from udev, devfs) it is
	# responsible for the presence of those subdirs.
	# (it is OK for these to fail under fakechroot)
	#
	if ! mountpoint -q /dev
	then
		[ -d /dev/pts ] || { mkdir --mode=755 /dev/pts ; chown root:root /dev/pts || [ "$FAKECHROOT" = true ]; }
		[ -d /dev/shm ] || { mkdir --mode=755 /dev/shm ; chown root:root /dev/shm || [ "$FAKECHROOT" = true ]; }
	fi
fi

#
# Create /etc/rc.local on first time install and when upgrading from
# versions before "2.86.ds1-16"
#
if dpkg --compare-versions "$PREV_VER" lt "2.86.ds1-16"
then
	if [ ! -e /etc/rc.local ]; then
		cat << EOF > /etc/rc.local
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

exit 0
EOF
		# make sure it's enabled by default.
		chmod 755 /etc/rc.local
	fi
fi

: