preinst is in udev 229-4ubuntu4.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 | #!/bin/sh -e
# adapted from postinst
chrooted() {
if [ "$(stat -c %d/%i /)" = "$(stat -Lc %d/%i /proc/1/root 2>/dev/null)" ];
then
return 1
fi
return 0
}
check_kernel_features() {
# skip the check if udev is not already active
[ -d /run/udev/ ] || return 0
if [ -e /proc/kallsyms ]; then
local needed_symbols='inotify_init signalfd accept4 open_by_handle_at timerfd_create epoll_create'
for symbol in $needed_symbols; do
if ! egrep -q "^[a-fA-F0-9]+ T \.?sys_${symbol}$" /proc/kallsyms; then
cat <<END
Since release 198, udev requires support for the following features in
the running kernel:
- inotify(2) (CONFIG_INOTIFY_USER)
- signalfd(2) (CONFIG_SIGNALFD)
- accept4(2)
- open_by_handle_at(2) (CONFIG_FHANDLE)
- timerfd_create(2) (CONFIG_TIMERFD)
- epoll_create(2) (CONFIG_EPOLL)
END
exit 1
fi
done
fi
if ! grep -q '[[:space:]]devtmpfs$' /proc/filesystems; then
cat <<END
Since release 176, udev requires support for the following features in
the running kernel:
- devtmpfs (CONFIG_DEVTMPFS)
END
exit 1
fi
if [ -d /sys/class/mem/null -a ! -L /sys/class/mem/null ] ||
[ -e /sys/block -a ! -e /sys/class/block ]; then
cat <<END
The currently running kernel has the CONFIG_SYSFS_DEPRECATED option
enabled, which is incompatible with udev.
END
exit 1
fi
}
check_version() {
# $2 is non-empty when installing from the "config-files" state
[ -n "$2" ] || return 0
if dpkg --compare-versions $2 lt 204-4; then
# these must be checked first to allow aborting before changing anything
if chrooted; then
echo 'Running in a chroot, skipping the kernel versions checks!'
else
check_kernel_features
# suppress errors when the new rules files contain options not supported by
# the old daemon
udevadm control --log-priority=0 || true
fi
fi # 204-4
}
case "$1" in
install|upgrade|abort-upgrade)
check_version "$@"
;;
esac
# Automatically added by dh_installdeb
dpkg-maintscript-helper rm_conffile /etc/init.d/udev-mtab 204-1~ -- "$@"
# End automatically added section
# Automatically added by dh_installdeb
dpkg-maintscript-helper rm_conffile /etc/udev/links.conf 204-9~ -- "$@"
# End automatically added section
# Automatically added by dh_installdeb
dpkg-maintscript-helper rm_conffile /etc/init.d/udev-finish 226-1~ -- "$@"
# End automatically added section
# Automatically added by dh_installdeb
dpkg-maintscript-helper rm_conffile /etc/init/udev-finish.conf 226-1~ -- "$@"
# End automatically added section
# Automatically added by dh_installdeb
dpkg-maintscript-helper rm_conffile /etc/init/udev-fallback-graphics.conf 226-1~ -- "$@"
# End automatically added section
# Automatically added by dh_installdeb
dpkg-maintscript-helper symlink_to_dir /usr/share/doc/udev libudev1 221-2~ -- "$@"
# End automatically added section
# Automatically added by dh_installdeb
dpkg-maintscript-helper rm_conffile /etc/udev/rules.d/README 215-5ubuntu1~ -- "$@"
# End automatically added section
# Automatically added by dh_installdeb
dpkg-maintscript-helper rm_conffile /etc/init.d/lvm2 228-2ubuntu2~ -- "$@"
# End automatically added section
|