Your IP : 216.73.216.124
#!/bin/sh -e
# Hack to get the dpkg process' PID despite using debconf
if [ -z "$PARENT_PID" ]; then
export PARENT_PID=$PPID
fi
. /usr/share/debconf/confmodule
supported_kernel() {
local version
if [ "$1" ]; then
version="$1"
else
version="$(uname -r)"
fi
case "$version" in
2.[012345].*|2.6.[0-9]|2.6.[0-9][!0-9]*) return 1 ;;
2.6.1[0-9]|2.6.1[0-9][!0-9]*) return 1 ;;
2.6.2[0-5]|2.6.2[0-5][!0-9]*) return 1 ;;
esac
return 0
}
check_installed_kernel() {
for ver in /lib/modules/*; do
ver=${ver##*/}
[ "$ver" = '*' ] && return 1
supported_kernel "$ver" && return 0
done
return 1
}
check_installing_kernel() {
for pkg in $(ps hp $PARENT_PID -o args); do
ver=$(echo $pkg | sed -nr "s/^.*linux-image-(2\.6\.[0-9]+)-([0-9]+|trunk)-.*_.*_.*\.deb$/\1/p")
[ "$ver" ] && supported_kernel "$ver" && return 0
done
return 1
}
check_kernel_version() {
# skip the check if udev is not already active
[ -d /dev/.udev/ ] || return 0
supported_kernel && return
if [ -e /etc/udev/kernel-upgrade ]; then
echo "This version of udev requires a kernel >= 2.6.26, but the upgrade was forced."
# restart udevd which was killed by the old prerm
udevd -d || true
return 0
fi
db_settitle udev/title/upgrade
if check_installed_kernel || check_installing_kernel; then
db_fset udev/reboot_needed seen false
db_input high udev/reboot_needed || true
db_go
db_stop
echo "A reboot is needed, but proceeding with the upgrade."
touch /etc/udev/kernel-upgrade
# restart udevd which was killed by the old prerm
udevd -d || true
return 0
fi
db_fset udev/new_kernel_needed seen false
db_reset udev/new_kernel_needed
db_input critical udev/new_kernel_needed || true
db_go
db_get udev/new_kernel_needed
if [ "$RET" = true ]; then
db_stop
echo "This version of udev requires a kernel >= 2.6.26, but the upgrade was forced."
touch /etc/udev/kernel-upgrade
# restart udevd which was killed by the old prerm
udevd -d || true
return 0
fi
db_stop
exit 1
}
check_kernel_features() {
# skip the check if udev is not already active
[ -d /dev/.udev/ ] || return 0
# skip the check if check_kernel_version() decided that a new kernel is
# being installed
[ -e /etc/udev/kernel-upgrade ] && return 0
local abort_install=0
if [ -e /proc/kallsyms ]; then
local needed_symbols='sys_inotify_init sys_signalfd'
local missing_symbol=0
for symbol in $needed_symbols; do
if ! egrep -q "^[a-fA-F0-9]+ T \.?${symbol}$" /proc/kallsyms; then
missing_symbol=1
abort_install=1
break
fi
done
fi
local sysfs_deprecated=0
if [ -d /sys/class/mem/null -a ! -L /sys/class/mem/null ]; then
sysfs_deprecated=1
fi
if [ "$missing_symbol" -eq 1 ]; then
cat <<END
Since release 146, udev requires support for the following features in
the running kernel:
- inotify(2) (CONFIG_INOTIFY_USER)
- signalfd(2) (CONFIG_SIGNALFD)
END
fi
if [ "$sysfs_deprecated" -eq 1 ]; then
db_input critical udev/sysfs_deprecated_incompatibility || true
fi
if [ "$abort_install" -eq 0 ]; then
return 0
fi
cat <<END
Please upgrade your kernel before or while upgrading udev.
AT YOUR OWN RISK, you can force the installation of this version of udev
WHICH DOES NOT WORK WITH YOUR RUNNING KERNEL AND WILL BREAK YOUR SYSTEM
AT THE NEXT REBOOT by creating the /etc/udev/kernel-upgrade file.
There is always a safer way to upgrade, do not try this unless you
understand what you are doing!
END
db_stop
exit 1
}
check_devfs_names() {
[ -e /etc/udev/rules.d/devfs.rules ] || return 0
cat <<END
Since release 0.124-1 udev does not support anymore devfs-like names.
Please convert to standard names before upgrading:
rm -f /etc/udev/rules.d/devfs.rules /etc/udev/rules.d/compat-full.rules /etc/udev/rules.d/compat.rules
ln -s ../udev.rules /etc/udev/rules.d/
END
exit 1
}
rm_conffile() {
mv_conffile "$1" "$1.dpkg-bak"
}
mv_conffile() {
local package='udev'
local name="$1"
local newname="$2"
[ -e "$name" ] || return 0
local md5="$(md5sum $name | sed -e 's/ .*//')"
oldmd5="$(dpkg-query -W -f='${Conffiles}' $package | \
sed -n -e "\' $name ' { s/ obsolete$//; s/.* //; p }")"
if [ "$md5" = "$oldmd5" ]; then
rm -f "$name"
else
mv "$name" "$newname"
fi
}
replace_sysfs_attr() {
local file=$1
[ -f $file ] || return 0
egrep '^[^#].+\<SYSFS\{' $file || return 0
sed -r -e '/^#/!s/\<SYSFS(\{[^}]+}==)/ATTR\1/g' < $file > $file.tmp
mv $file.tmp $file
}
check_version() {
# $2 is non-empty when installing from the "config-files" state
[ "$2" ] || return 0
if dpkg --compare-versions $2 lt 157-1; then
if dpkg --compare-versions $2 lt 150-1; then
# these must be checked first to allow aborting before changing anything
check_kernel_version
check_kernel_features
if dpkg --compare-versions $2 lt 0.140-1; then
if dpkg --compare-versions $2 lt 0.124-1; then
# this must be checked first to allow aborting before changing anything
check_devfs_names
if dpkg --compare-versions $2 lt 0.098-1; then
echo 'Upgrading udev from packages older than 0.098-1 is not supported.'
echo 'Please purge the package and then reinstall it.'
exit 1
fi
# lt 0.124-1
rm_conffile /etc/udev/cd-aliases-generator.rules
rm_conffile /etc/udev/compat-full.rules
rm_conffile /etc/udev/compat.rules
rm_conffile /etc/udev/devfs.rules
rm_conffile /etc/udev/hotplug.rules
rm_conffile /etc/udev/permissions.rules
rm_conffile /etc/udev/persistent-input.rules
rm_conffile /etc/udev/persistent-net-generator.rules
rm_conffile /etc/udev/persistent.rules
rm_conffile /etc/udev/run.rules
rm_conffile /etc/udev/udev.rules
# removed in 0.113-1
rm_conffile /etc/udev/hotplugd.rules
(
cd /etc/udev/rules.d/
# delete dangling symlinks
find -L . -type l -print0 | xargs --no-run-if-empty --null rm
# rename the generated files
if [ -e z25_persistent-cd.rules -a ! -e 70-persistent-cd.rules ]; then
mv z25_persistent-cd.rules 70-persistent-cd.rules
fi
if [ -e z25_persistent-net.rules -a ! -e 70-persistent-net.rules ]; then
mv z25_persistent-net.rules 70-persistent-net.rules
fi
)
fi # 0.124-1
# lt 0.140-1
rm_conffile /etc/modprobe.d/display_class
rm_conffile /etc/modprobe.d/pnp-hotplug
mv_conffile /etc/modprobe.d/blacklist /etc/modprobe.d/blacklist.conf
for file in 50-udev 60-persistent-input 60-persistent-storage \
60-persistent-storage-tape 60-persistent-v4l 91-permissions 80-drivers \
75-cd-aliases-generator 75-persistent-net-generator 95-late; do
rm_conffile /etc/udev/rules.d/$file.rules
done
# SYSFS is equivalent to ATTRS, and multiple ATTRS attributes do not match
# when the keys are from different kobjects like in this case.
replace_sysfs_attr /etc/udev/rules.d/70-persistent-net.rules
fi # 0.140-1
# lt 146-1
rm_conffile /etc/scsi_id.config
fi # 146-1
# suppress errors when the new rules files contain options not supported by
# the old daemon
udevadm control --log-priority=0 || true
fi # 157-1
}
case "$1" in
install)
check_version "$@"
;;
upgrade|abort-upgrade)
check_version "$@"
;;
*)
echo "$0 called with unknown argument '$1'" >&2
exit 1
;;
esac