2 # postinst script for kernel-2.6-cn
4 # see: dh_installdeb(1)
8 # summary of how this script can be called:
9 # * <postinst> `configure' <most-recently-configured-version>
10 # * <old-postinst> `abort-upgrade' <new version>
11 # * <conflictor's-postinst> `abort-remove' `in-favour' <package>
13 # * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
14 # <failed-install-package> <version> `removing'
15 # <conflicting-package> <version>
16 # for details, see http://www.debian.org/doc/debian-policy/ or
17 # the debian-policy package
21 configure|reconfigure)
30 # Source debconf library.
31 . /usr/share/debconf/confmodule
34 . /usr/share/carnet-tools/functions.sh
36 # import GRUB helper functions
37 . /usr/share/kernel-2.6-cn/grub-functions.sh
39 ################################################################################
42 echo -n "CN: Backed up to /var/backups:"
45 if [ -e /etc/lilo.conf ]; then
46 cp_backup_conffile /etc/lilo.conf
50 # backup old kernel params
51 if [ -e /etc/sysctl.conf ]; then
52 cp_backup_conffile /etc/sysctl.conf
53 echo -n " sysctl.conf"
56 # backup old kernel params
57 if [ -e /etc/kernel-img.conf ]; then
58 cp_backup_conffile /etc/kernel-img.conf
59 echo -n " kernel-img.conf"
65 ################################################################################
67 # remove obsolete symlinks and kernels
68 rm -f /boot/vmlinuz /boot/vmlinuz.old /boot/vmlinuz.old2 \
69 /boot/vmlinuz.plain /vmlinuz /vmlinuz.old /boot/vmlinuz.plain \
70 /boot/vmlinuz.generic /boot/vmlinuz-generic /boot/vmlinuz-old
71 echo "CN: Removed old symlinks in / and /boot."
73 ################################################################################
75 DIVERT_TO="grub grub-probe"
77 echo -n "CN: Undiverting binaries if necessary:"
78 for i in $DIVERT_TO; do
79 if [ -e /usr/sbin/$i.real ]; then
80 dpkg-divert --remove --rename --package 'kernel-2.6-cn' \
81 --divert /usr/sbin/$i.real /usr/sbin/$i >/dev/null
87 ################################################################################
89 # detect existing Grub2 installation
92 if [ \( -e /boot/grub/grub.cfg \) -o \( -e /boot/grub/core.img \) ]; then
93 echo "CN: Detected GRUB2 installation, will try to use it."
95 if [ -e /boot/grub/menu.lst ]; then
96 echo "CN: Oops, GRUB1 (Legacy) installation detected. Will try to upgrade to GRUB2."
99 echo "CN: No GRUB2 detected, will continue with GRUB1 as default option."
102 ################################################################################
105 echo -n "CN: Configuring system (this will take a while):"
107 # generate kernel-img.conf
108 if [ ! -e /etc/kernel-img.conf ]; then
109 touch /etc/kernel-img.conf
112 # update postinst_hook for grub/grub2
113 if grep -q postinst_hook /etc/kernel-img.conf; then
114 cp_check_and_sed '^postinst_hook' \
115 's;^postinst_hook[[:blank:]]*=.*;postinst_hook = /usr/sbin/update-grub;g' \
116 /etc/kernel-img.conf || true
118 echo "postinst_hook = /usr/sbin/update-grub" >> /etc/kernel-img.conf
121 # update postrm_hook for grub/grub2
122 if grep -q postrm_hook /etc/kernel-img.conf; then
123 cp_check_and_sed '^postrm_hook' \
124 's;^postrm_hook[[:blank:]]*=.*;postrm_hook = /usr/sbin/update-grub;g' \
125 /etc/kernel-img.conf || true
127 echo "postrm_hook = /usr/sbin/update-grub" >> /etc/kernel-img.conf
131 if grep -q do_initrd /etc/kernel-img.conf; then
132 cp_check_and_sed '^do_initrd' \
133 's/^do_initrd[[:blank:]]*=.*/do_initrd = yes/g' \
134 /etc/kernel-img.conf || true
136 echo "do_initrd = yes" >> /etc/kernel-img.conf
139 echo -n " kernel-img.conf"
141 # generate initial grub loaders
142 if [ "x$GRUB2" = "xno" ]; then
144 if [ ! -d "$grub_dir" ]; then
147 if [ -d /usr/lib/grub/i386-pc ]; then
148 cp -a /usr/lib/grub/i386-pc/* "$grub_dir"
150 elif [ -d /usr/lib/grub/x86_64-pc ]; then
151 cp -a /usr/lib/grub/x86_64-pc/* "$grub_dir"
156 if [ ! -d /boot/grub ]; then
158 if [ -d /usr/lib/grub/i386-pc ]; then
159 cp -a /usr/lib/grub/i386-pc/* /boot/grub
165 # create/update grub configuration
166 if [ "x$GRUB2" = "xno" ]; then
168 if [ -e "$menu_file" ]; then
169 # is there uncompatibile grub conf present?
170 if ! grep -q 'AUTOMAGIC KERNELS LIST' "$menu_file"; then
171 mv -f "$menu_file" "$menu_file.old"
174 if [ ! -e "$menu_file" ]; then
175 yes | update-grub >/dev/null 2>&1 || true
177 update-grub >/dev/null 2>&1 || true
181 touch /boot/grub/grub.cfg
182 update-grub >/dev/null 2>&1 || true
187 if uname -a | grep -q grsec; then
188 if [ -x /sbin/chpax ]; then
190 if [ -x /usr/sbin/grub.real ]; then
191 chpax -spmrx /usr/sbin/grub.real >/dev/null 2>&1 || true
192 elif [ -x /usr/sbin/grub ]; then
193 chpax -spmrx /usr/sbin/grub >/dev/null 2>&1 || true
197 if [ -x /usr/sbin/grub-probe.real ]; then
198 chpax -spmrx /usr/sbin/grub-probe.real >/dev/null 2>&1 || true
199 elif [ -x /usr/sbin/grub-probe ]; then
200 chpax -spmrx /usr/sbin/grub-probe >/dev/null 2>&1 || true
207 # remove obsolete devfs/compat links and restore normal udev behaviour
208 rm -f /etc/udev/rules.d/devfs.rules /etc/udev/rules.d/compat.rules \
209 /etc/udev/rules.d/compat-full.rules
210 #if [ ! -e /etc/udev/rules.d/udev.rules ]; then
211 # ln -s ../udev.rules /etc/udev/rules.d/udev.rules
213 udevadm control --reload_rules >/dev/null 2>&1 || true
214 udevadm settle || true
217 # update device map if possible
218 if [ "x$GRUB2" = "xno" ]; then
220 if [ -f "$device_map" ]; then
221 mv -f "$device_map" "$device_map.old"
223 # possible situation when upgrading from Grub1 to Grub2
224 if [ ! -x /usr/sbin/grub ]; then
226 echo "CN: FATAL ERROR while trying to execute GRUB1!"
227 echo "CN: Do not reboot your server and report this to OTRS immediately!"
230 grub --batch --no-floppy --device-map="$device_map" <<'EOF' >/dev/null 2>&1
233 if [ ! -s "$device_map" ]; then
234 if [ -f "$device_map.old" ]; then
235 mv -f "$device_map.old" "$device_map"
239 rm -f "$device_map.old"
243 grub-mkdevicemap --no-floppy
244 grub-install --no-floppy --grub-setup=/bin/true "$(grub-probe -t drive /boot/grub)" >/dev/null 2>&1
248 # import GRUB helper functions (again, updated device map)
249 . /usr/share/kernel-2.6-cn/grub-functions.sh
251 if [ "x$GRUB2" = "xno" ]; then
253 # get install device (0x80 BIOS device)
254 install_device=$(grep '^(hd0)' "$device_map" | \
255 sed -e 's%[^[:space:]]*[[:space:]]*\([^[:space:]]*\)%\1%')
256 if [ -z "$install_device" ]; then
258 echo "CN: FATAL ERROR while detecting boot disk!"
259 echo "CN: Do not reboot your server and report this to OTRS immediately!"
263 # oops, install device is a symlink...
264 if [ -h "$install_device" ]; then
265 install_device_resolved=$(resolve_symlink "$install_device")
266 if [ -z "$install_device_resolved" ]; then
267 install_device_resolved="$install_device"
270 # try to fix device map with symlink resolved device
271 if [ "x$install_device_resolved" != "x$install_device" ]; then
272 cp_check_and_sed '^\(hd0\)' \
273 "s;^(hd0).*;(hd0) $install_device_resolved;" "$device_map" \
279 install_device="(hd0)"
283 # install GRUB loader
284 # this will work for both Grub1 and Grub2
285 if ! grub-install --no-floppy "$install_device" >/dev/null 2>&1; then
287 echo "CN: FATAL ERROR while running grub-install on $install_device!"
288 echo "CN: Do not reboot your server and report this to OTRS immediately!"
293 # fix possible wrong params in menu.lst
294 if [ "x$GRUB2" = "xno" ]; then
296 cp_check_and_sed '^# groot=' \
297 "s;^# groot=.*;# groot=$grub_root_device;g" \
299 cp_check_and_sed '^# kopt=' \
300 "s;^# kopt=\(.*\)root=[^[:space:]]*\(.*\);# kopt=\1root=$root_device\2;g" \
303 update-grub >/dev/null 2>&1 || true
306 # fix possible wrong params in menu.lst
307 if [ "x$GRUB2" = "xno" ]; then
309 # ... and final stage of devfs/udev brokeness fix
310 if [ "x$install_device_resolved" != "x$install_device" ]; then
311 # get original (symlinked device)
312 root_device=$(find_device_nonresolved "/")
313 if [ -z "$root_device" ]; then
314 root_device=$(find_root_device)
318 cp_check_and_sed '^\(hd0\)' \
319 "s;^(hd0).*;(hd0) $install_device;" "$device_map" \
322 # fix global root= invocation
323 cp_check_and_sed '^# kopt=' \
324 "s;^# kopt=\(.*\)root=[^[:space:]]*\(.*\);# kopt=\1root=$root_device\2;g" \
327 # fix root= invocation for individual kernel profiles
328 cp_check_and_sed '^kernel' \
329 "s;\(^kernel.*\)root=[^[:space:]]*\(.*\);\1root=$root_device\2;g" \
335 # install to other boot sectors if needed (better safe than sorry)
336 if [ "x$GRUB2" = "xyes" ]; then
338 db_get grub-pc/install_devices
339 for i in `echo $RET | sed -e 's/,/ /g'`; do
340 real_device="$(readlink -f "$i")"
341 if [ -e "$real_device" ]; then
342 grub-install --force --no-floppy $real_device \
343 >/dev/null 2>&1 || true
350 if [ -e /etc/lilo.conf ]; then
351 mv -f /etc/lilo.conf /etc/lilo.conf.old
356 if [ -x /usr/share/mdadm/mkconf ]; then
357 if [ ! -e /etc/mdadm/mdadm.conf ]; then
358 touch /etc/mdadm/mdadm.conf
361 /usr/share/mdadm/mkconf > /etc/mdadm/mdadm.conf.$$
362 if ! cmp -s /etc/mdadm/mdadm.conf.$$ /etc/mdadm/mdadm.conf; then
363 mv /etc/mdadm/mdadm.conf.$$ /etc/mdadm/mdadm.conf
365 rm -f /etc/mdadm/mdadm.conf.$$ /etc/initramfs-tools/hooks/md \
366 /var/lib/mdadm/CONF-UNCHECKED
370 # update initramfs accordingly (because of mdadm and udev)
371 update-initramfs -u -k all >/dev/null 2>&1 || true
377 ################################################################################
379 # rest of configuration...
380 echo -n "CN: Modifying the neccessary system files:"
383 if getent group proc >/dev/null 2>&1; then
384 groupdel proc >/dev/null 2>&1
388 # remove oidentd from oident group
389 if getent group oident >/dev/null 2>&1; then
391 cp_check_and_sed '^OIDENT_GROUP[[:blank:]]*=[[:blank:]]*nogroup' \
392 's/^OIDENT_GROUP[[:blank:]]*=[[:blank:]]*nogroup/OIDENT_GROUP=oident/g' \
393 /etc/default/oidentd || true
395 # old kernel-2.6-cn default
396 cp_check_and_sed '^OIDENT_GROUP[[:blank:]]*=[[:blank:]]*proc' \
397 's/^OIDENT_GROUP[[:blank:]]*=[[:blank:]]*proc/OIDENT_GROUP=oident/g' \
398 /etc/default/oidentd || true
403 # default kernel parameters
404 rm -f /etc/sysctl.conf.$$
406 # old kernel params (skipping some of the obsolete or overrided entries)
407 if [ -e /etc/sysctl.conf ]; then
408 egrep -v 'net\.core\.(r|w)mem_max|net\.ipv4\.tcp_(r|w)mem|vm\.bdflush|net\.ipv4\.ip_local_port_range|kernel\.rtsig-max|net\.ipv4\.tcp_syncookies|kernel\.exec-shield|net\.ipv4\.tcp_max_syn_backlog|net\.ipv4\.tcp_congestion_control|kernel\.exec-shield|kernel\.maps_protect' \
409 /etc/sysctl.conf >> /etc/sysctl.conf.$$
412 # finished with merging, move into sysctl.conf
413 cp_mv /etc/sysctl.conf.$$ /etc/sysctl.conf
414 echo -n " sysctl.conf"
417 if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then
418 invoke-rc.d procps restart >/dev/null 2>&1 || true
420 /etc/init.d/procps restart >/dev/null 2>&1 || true
423 # finished with basic kernel-2.6-cn stuff
426 ################################################################################
429 echo -n "CN: Setting up PAM configurations:"
431 # update pam_limits accordingly
432 if [ -e /etc/security/limits.conf ]; then
433 rm -f /etc/security/limits.conf.$$
434 cp /etc/security/limits.conf /etc/security/limits.conf.$$
435 cp-update kernel-2.6-cn /etc/security/limits.conf.$$ <<'EOF'
439 @users soft nproc 100
440 @users hard nproc 150
442 cp_mv /etc/security/limits.conf.$$ /etc/security/limits.conf
447 if [ -e /etc/pam.d/login ]; then
448 cp_check_and_sed '^#.*session.+required.+pam_limits.so' \
449 's/^#.*session.+required.+pam_limits.so/session required pam_limits.so/' \
450 /etc/pam.d/login || true
455 if [ -e /etc/pam.d/ssh ]; then
456 cp_check_and_sed '^#.*session.+required.+pam_limits.so' \
457 's/^#.*session.+required.+pam_limits.so/session required pam_limits.so/' \
458 /etc/pam.d/ssh || true
465 ################################################################################
467 # fix old kernel-2.4-cn postrm
468 if [ -e /var/lib/dpkg/info/kernel-2.4-cn.postrm ]; then
469 echo "CN: Fixed old kernel-2.4-cn postrm."
470 cat > /var/lib/dpkg/info/kernel-2.4-cn.postrm.$$ <<'EOF'
476 if [ "$1" != "remove" ]; then
480 # import CN-functions
481 . /usr/share/carnet-tools/functions.sh
483 # remove us from limits.conf
484 cp-update -r kernel-2.4-cn /etc/security/limits.conf
486 # remove us from modules
487 cp-update -r kernel-2.4-cn /etc/modules
489 if ! cmp -s /var/lib/dpkg/info/kernel-2.4-cn.postrm \
490 /var/lib/dpkg/info/kernel-2.4-cn.postrm.$$; then
491 mv /var/lib/dpkg/info/kernel-2.4-cn.postrm.$$ \
492 /var/lib/dpkg/info/kernel-2.4-cn.postrm
493 chmod +x /var/lib/dpkg/info/kernel-2.4-cn.postrm
495 rm -f /var/lib/dpkg/info/kernel-2.4-cn.postrm.$$
498 ################################################################################
500 # fix old kernel-cn postrm
501 if [ -e /var/lib/dpkg/info/kernel-cn.postrm ]; then
502 echo "CN: Fixed old kernel-cn postrm."
503 cat > /var/lib/dpkg/info/kernel-cn.postrm.$$ <<'EOF'
509 if [ "$1" != "remove" ]; then
513 # import CN-functions
514 . /usr/share/carnet-tools/functions.sh
516 # remove us from limits.conf
517 cp-update -r kernel-cn /etc/security/limits.conf
519 # remove us from modules
520 cp-update -r kernel-cn /etc/modules
522 if ! cmp -s /var/lib/dpkg/info/kernel-cn.postrm \
523 /var/lib/dpkg/info/kernel-cn.postrm.$$; then
524 mv /var/lib/dpkg/info/kernel-cn.postrm.$$ \
525 /var/lib/dpkg/info/kernel-cn.postrm
526 chmod +x /var/lib/dpkg/info/kernel-cn.postrm
528 rm -f /var/lib/dpkg/info/kernel-cn.postrm.$$
531 ################################################################################
533 # dh_installdeb will replace this with shell code automatically
534 # generated by other debhelper scripts.