Your IP : 216.73.216.170
| Current Path : /var/lib/dpkg/info/ |
|
|
| Current File : //var/lib/dpkg/info/sysv-rc.postinst |
#!/bin/sh
set -e
. /usr/share/debconf/confmodule
db_version 2.0
now=`date +%Y%m%dT%H%M`
logdir=/var/lib/insserv
logfile="$logdir/run-$now.log"
flagfile=/etc/init.d/.legacy-bootordering
# Make sure insserv is in path
PATH=/sbin:$PATH
# Based on code from dash postinst
check_divert() {
package=insserv
div=$(dpkg-divert --list $2)
distrib=${4:-$2.distrib}
case "$1" in
false)
if [ -n "$div" ] && [ -z "${div%%*by $package}" ]; then
mv $distrib $2
dpkg-divert --package $package --remove $2
fi
;;
status) # Return true if the divert is in effect
if [ -n "$div" ] && [ -z "${div%%*by $package}" ]; then
:
else
false
fi
esac
}
convert_rc_s_to_k() {
runlevel=$1
for link in $(cd $target/etc/rc$runlevel.d; ls S* || true); do
set `echo $link|sed "s%S\(..\)\(.*\)%\1 \2%"`
seq=$1
service=$2
mv $target/etc/rc$runlevel.d/$link $target/etc/rc$runlevel.d/K$seq$service
done
}
add_problematic() {
msg="$1"
if [ -z "$PROBLEMATIC" ] ; then
PROBLEMATIC="$msg"
else
PROBLEMATIC="$PROBLEMATIC, $msg"
fi
}
is_unsafe_to_activate() {
retval=1
# Refuse to convert when there are obsolete init.d scripts left
# behind, as these tend to confuse the boot sequence.
echo "info: Checking if it is safe to convert to dependency based boot." 1>&2
for package in $(dpkg -S $(find /etc/init.d -type f -perm /+x) \
2>/dev/null | cut -d: -f1 | sort -u); do
obsolete_initscripts=$(dpkg-query -W -f='${Conffiles}\n' $package | \
grep 'obsolete$' | grep -o '/etc/init.d/[^ ]\+') || :
if [ "$obsolete_initscripts" ]; then
for initscript in $obsolete_initscripts; do
if [ -e "$initscript" ]; then
retval=0
add_problematic "package $package left obsolete init.d script behind"
fi
done
fi
done
# Refuse to migrate if insserv find problems, like loops,
# duplicate provides, script providing system facility or missing
# header completely.
insserv -nv > $logfile 2>&1 || true
errstr='There is a loop between|loop involving service|already provided!|provides system facility|missing LSB tags'
if egrep -q "$errstr" $logfile ; then
msg=$(egrep "$errstr" $logfile | sed 's/$/, /' | tr "\n" " ")
retval=0
add_problematic "$msg"
# If insserv found problems, report removed but not purged
# packages, as their dependency information is probably
# outdated or missing, leading to incorrect ordering.
for package in $(dpkg -l $(dpkg -S /etc/init.d/* 2>/dev/null |
cut -d: -f1 |sort -u)|grep ^rc|awk '{print $2}') ; do
retval=0
add_problematic "package $package removed but not purged"
done
fi
rm $logfile
return $retval
}
activate_insserv() {
# Save the current sequence numbers in
# /var/lib/update-rc.d/. This directory will be updated
# when update-rc.d is called, to make it possible to migrate away
# from dependency based boot sequencing. If some script is
# missing in /var/lib/update-rc.d/, one will have to
# reconfigure the package it belong to for update-rc.d to update
# the content in /var/lib/update-rc.d/.
/usr/share/sysv-rc/saveconfig -s /var/lib/update-rc.d
echo "info: Reordering boot system, log to $logfile" 1>&2
(
echo "info: Converting rc0.d/S* and rc6.d/S* to K*." 1>&2
convert_rc_s_to_k 0
convert_rc_s_to_k 6
echo "info: running insserv" 1>&2
insserv -v
) > $logfile 2>&1
# Indicate that system is no longer using the legacy ordering
rm $flagfile
return 0
}
try_to_convert() {
PROBLEMATIC=""
if is_unsafe_to_activate ; then
# Make sure the note is seen every time
db_fset sysv-rc/unable-to-convert seen false
db_subst sysv-rc/unable-to-convert PROBLEMATIC "$PROBLEMATIC"
db_input critical sysv-rc/unable-to-convert || [ $? -eq 30 ]
db_go || true
return 1
else
# Ask if the legacy boot sequence should be converted to
# dependency based.
# Priority is critical during upgrades, to give those with
# existing installations a good chance of seeing and rejecting
# the migration.
db_input critical sysv-rc/convert-legacy || [ $? -eq 30 ]
db_go
db_get sysv-rc/convert-legacy || true
if [ true = "$RET" ] ; then
if activate_insserv ; then
echo "success: Enabled dependency based boot system." 1>&2
else
echo "error: Something failed while migrating." 1>&2
fi
else
echo "warning: Asked to not convert legacy boot sequence to dependency based boot sequencing." 1>&2
fi
fi
}
case "$1" in
configure)
# Remove divert created by insserv during upgrades if it
# exist. It was dropped in insserv 1.12.0-11 converted since
# sysvinit 2.87dsf-3, 2009-08-19.
if [ -f /var/run/sysv-rc.upgrade ]; then
lastver=$(cat /var/run/sysv-rc.upgrade)
if dpkg --compare-versions "$2" lt 2.87dsf-3 ; then
if check_divert status /usr/sbin/update-rc.d \
/usr/sbin/update-rc.d-insserv ; then
check_divert false /usr/sbin/update-rc.d \
/usr/sbin/update-rc.d-insserv
rm /var/lib/insserv/using-insserv
else
touch $flagfile
fi
fi
rm /var/run/sysv-rc.upgrade
fi
# Detect migrations away from file-rc, where the legacy boot
# ordering is used but the flag file to indicated legacy boot
# ordering is missing. Can not do this in preinst, as preinst
# might be executed before the postinst of file-rc creatingthe
# files in /etc/rc?.d/.
for f in /etc/rc0.d/S* ; do
if [ ! -f $flagfile ] && [ -f $f ] ; then
touch $flagfile
break
fi
done
if [ -f $flagfile ] ; then
# Still using legacy ordering, try to convert
if try_to_convert ; then
:
else
cat 1>&2 <<EOF
error: Unable to migrate to dependency based boot sequencing.
error: Problems detected: $PROBLEMATIC
See http://wiki.debian.org/LSBInitScripts/DependencyBasedBoot for
more information about dependency based boot sequencing. To
reattempt the migration process run 'dpkg-reconfigure sysv-rc'.
EOF
fi
fi
if dpkg --compare-versions "$2" lt 2.87dsf-5 ; then
removedfiles=$(grep -l 'remove$' /var/lib/update-rc.d/* 2>/dev/null || true)
if [ "$removedfiles" ] ; then
rm $removedfiles
fi
fi
;;
*)
;;
esac
db_stop