2 # postinst script for spamassassin-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)
31 . /usr/share/carnet-tools/functions.sh
33 ################################################################################
36 echo -n "CN: Backed up to /var/backups:"
39 if [ -e /etc/lilo.conf ]; then
40 cp_backup_conffile /etc/lilo.conf
44 # backup old kernel params
45 if [ -e /etc/sysctl.conf ]; then
46 cp_backup_conffile /etc/sysctl.conf
47 echo -n " sysctl.conf"
50 # backup old kernel params
51 if [ -e /etc/kernel-img.conf ]; then
52 cp_backup_conffile /etc/kernel-img.conf
53 echo -n " kernel-img.conf"
59 ################################################################################
62 echo -n "CN: Configuring system (this will take a while):"
64 # generate kernel-img.conf
65 if [ ! -e /etc/kernel-img.conf ]; then
66 touch /etc/kernel-img.conf
69 # update postinst_hook for grub
70 if grep -q postinst_hook /etc/kernel-img.conf; then
71 cp_check_and_sed '^postinst_hook' \
72 's;^postinst_hook[[:blank:]]*=.*;postinst_hook = /usr/sbin/update-grub;g' \
73 /etc/kernel-img.conf || true
75 echo "postinst_hook = /usr/sbin/update-grub" >> /etc/kernel-img.conf
78 # update postrm_hook for grub
79 if grep -q postrm_hook /etc/kernel-img.conf; then
80 cp_check_and_sed '^postrm_hook' \
81 's;^postrm_hook[[:blank:]]*=.*;postrm_hook = /usr/sbin/update-grub;g' \
82 /etc/kernel-img.conf || true
84 echo "postrm_hook = /usr/sbin/update-grub" >> /etc/kernel-img.conf
88 if grep -q do_initrd /etc/kernel-img.conf; then
89 cp_check_and_sed '^do_initrd' \
90 's/^do_initrd[[:blank:]]*=.*/do_initrd = yes/g' \
91 /etc/kernel-img.conf || true
93 echo "do_initrd = yes" >> /etc/kernel-img.conf
96 echo -n " kernel-img.conf"
98 # generate initial grub loaders
99 if [ ! -d /boot/grub ]; then
101 if [ -d /usr/lib/grub/i386-pc ]; then
102 cp -a /usr/lib/grub/i386-pc/* /boot/grub
107 # create/update grub configuration
108 if [ -e /boot/grub/menu.lst ]; then
109 # is there uncompatibile grub conf present?
110 if ! grep -q 'AUTOMAGIC KERNELS LIST' /boot/grub/menu.lst; then
111 mv -f /boot/grub/menu.lst /boot/grub/menu.lst.old
114 if [ ! -e /boot/grub/menu.lst ]; then
115 yes | /usr/sbin/update-grub >/dev/null 2>&1 || true
117 /usr/sbin/update-grub >/dev/null 2>&1 || true
122 if [ -x /sbin/chpax ]; then
123 if [ -x /usr/sbin/grub ]; then
124 chpax -spmrx /usr/sbin/grub || true
126 if [ -x /usr/sbin/grub-probe ]; then
127 chpax -spmrx /usr/sbin/grub-probe || true
132 # workaround execshield
133 SHIELD=$(sysctl -e -n kernel.exec-shield)
134 if [ ! -z "$SHIELD" ]; then
135 sysctl -w -e kernel.exec-shield=0 >/dev/null 2>&1
138 # install grub loader
139 if ! grub-install --no-floppy '(hd0)' >/dev/null 2>&1; then
141 echo "CN: FATAL ERROR running grub-install!"
142 echo "CN: Do not reboot your server and report this to OTRS immediately!"
147 # restore execshield state
148 if [ ! -z "$SHIELD" ]; then
149 sysctl -w -e "kernel.exec-shield=$SHIELD" >/dev/null 2>&1
153 if [ -e /etc/lilo.conf ]; then
154 mv -f /etc/lilo.conf /etc/lilo.conf.old
159 if [ -x /usr/share/mdadm/mkconf ]; then
160 if [ ! -e /etc/mdadm/mdadm.conf ]; then
161 touch /etc/mdadm/mdadm.conf
164 /usr/share/mdadm/mkconf > /etc/mdadm/mdadm.conf.$$
165 if ! cmp -s /etc/mdadm/mdadm.conf.$$ /etc/mdadm/mdadm.conf; then
166 mv /etc/mdadm/mdadm.conf.$$ /etc/mdadm/mdadm.conf
168 rm -f /etc/mdadm/mdadm.conf.$$ /etc/initramfs-tools/hooks/md \
169 /var/lib/mdadm/CONF-UNCHECKED
173 # update initramfs accordingly
174 update-initramfs -u -k all >/dev/null 2>&1 || true
180 ################################################################################
182 # rest of configuration...
183 echo -n "CN: Modifying the neccessary system files:"
186 if getent group proc >/dev/null 2>&1; then
187 groupdel proc >/dev/null 2>&1
191 # remove oidentd from oident group
192 if getent group oident >/dev/null 2>&1; then
194 cp_check_and_sed '^OIDENT_GROUP[[:blank:]]*=[[:blank:]]*nogroup' \
195 's/^OIDENT_GROUP[[:blank:]]*=[[:blank:]]*nogroup/OIDENT_GROUP=oident/g' \
196 /etc/default/oidentd || true
198 # old kernel-2.6-cn default
199 cp_check_and_sed '^OIDENT_GROUP[[:blank:]]*=[[:blank:]]*proc' \
200 's/^OIDENT_GROUP[[:blank:]]*=[[:blank:]]*proc/OIDENT_GROUP=oident/g' \
201 /etc/default/oidentd || true
206 # default kernel parameters
207 rm -f /etc/sysctl.conf.$$
208 cat > /etc/sysctl.conf.$$ <<EOF
210 kernel.maps_protect=1
211 net.core.rmem_default=1048576
212 net.core.wmem_default=1048576
213 net.ipv4.conf.all.accept_redirects=0
214 net.ipv4.conf.all.accept_source_route=0
215 net.ipv4.conf.all.log_martians=1
216 net.ipv4.conf.all.rp_filter=1
217 net.ipv4.conf.all.secure_redirects=1
218 net.ipv4.conf.all.send_redirects=0
219 net.ipv4.icmp_echo_ignore_broadcasts=1
220 net.ipv4.icmp_ignore_bogus_error_responses=1
221 net.ipv4.ip_forward=0
222 net.ipv4.ip_local_port_range=10000 65000
223 net.ipv4.tcp_congestion_control=cubic
225 net.ipv4.tcp_max_syn_backlog=8192
226 net.ipv4.tcp_retries1=2
227 net.ipv4.tcp_rfc1337=1
228 net.ipv4.tcp_syncookies=1
229 vm.mmap_min_addr=65536
233 if [ -e /etc/sysctl.conf ]; then
234 #cat /etc/sysctl.conf >> /etc/sysctl.conf.$$
235 #ignore some of 2.4 stuff
236 egrep -v 'net\.core\.(r|w)mem_max|net\.ipv4\.tcp_(r|w)mem|vm\.bdflush|net\.ipv4\.ip_local_port_range|kernel\.rtsig-max|net\.ipv4\.tcp_syncookies' \
237 /etc/sysctl.conf >> /etc/sysctl.conf.$$
240 # add sysctl.conf Debian headers
241 rm -f /etc/sysctl.conf-head
242 cat > /etc/sysctl.conf-head <<EOF
244 # /etc/sysctl.conf - Configuration file for setting system variables
245 # See sysctl.conf (5) for information.
249 # merge old and new in one conf, primarily respecting old
256 if (/^\s*(\S+)\s*=\s*(.+)\s*$/o)
258 my ($key, $value) = ($1, $2);
260 $confhash{$key} = $value;
263 for (sort { $a cmp $b } keys %confhash)
265 print $_, "=", $confhash{$_}, "\n";
268 rm -f /etc/sysctl.conf-new
269 perl -e "$script" < /etc/sysctl.conf.$$ > /etc/sysctl.conf-new
270 cat /etc/sysctl.conf-head /etc/sysctl.conf-new > /etc/sysctl.conf.$$
271 rm -f /etc/sysctl.conf-head /etc/sysctl.conf-new
273 # finished with merging, move into sysctl.conf
274 cp_mv /etc/sysctl.conf.$$ /etc/sysctl.conf
275 echo -n " sysctl.conf"
277 # finished with basic kernel-2.6-cn stuff
280 ################################################################################
283 echo -n "CN: Setting up PAM configurations:"
285 # update pam_limits accordingly
286 if [ -e /etc/security/limits.conf ]; then
287 rm -f /etc/security/limits.conf.$$
288 cp /etc/security/limits.conf /etc/security/limits.conf.$$
289 cp-update kernel-2.6-cn /etc/security/limits.conf.$$ <<EOF
294 cp_mv /etc/security/limits.conf.$$ /etc/security/limits.conf
299 if [ -e /etc/pam.d/login ]; then
300 cp_check_and_sed '^#.*session.+required.+pam_limits.so' \
301 's/^#.*session.+required.+pam_limits.so/session required pam_limits.so/' \
302 /etc/pam.d/login || true
307 if [ -e /etc/pam.d/ssh ]; then
308 cp_check_and_sed '^#.*session.+required.+pam_limits.so' \
309 's/^#.*session.+required.+pam_limits.so/session required pam_limits.so/' \
310 /etc/pam.d/ssh || true
317 ################################################################################
319 # remove obsolete links
320 rm -f /boot/vmlinuz /boot/vmlinuz.old /boot/vmlinuz.old2 \
321 /boot/vmlinuz.plain /vmlinuz /vmlinuz.old /boot/vmlinuz.plain
322 echo "CN: Removed old symlinks in / and /boot."
324 ################################################################################
326 # fix old kernel-2.4-cn postrm
327 if [ -e /var/lib/dpkg/info/kernel-2.4-cn.postrm ]; then
328 echo "CN: Fixed old kernel-2.4-cn postrm."
329 cat > /var/lib/dpkg/info/kernel-2.4-cn.postrm.$$ <<EOF
335 if [ "$1" != "remove" ]; then
339 # import CN-functions
340 . /usr/share/carnet-tools/functions.sh
342 # remove us from limits.conf
343 cp-update -r kernel-2.4-cn /etc/security/limits.conf
345 # remove us from modules
346 cp-update -r kernel-2.4-cn /etc/modules
348 if ! cmp -s /var/lib/dpkg/info/kernel-2.4-cn.postrm \
349 /var/lib/dpkg/info/kernel-2.4-cn.postrm.$$; then
350 mv /var/lib/dpkg/info/kernel-2.4-cn.postrm.$$ \
351 /var/lib/dpkg/info/kernel-2.4-cn.postrm
352 chmod +x /var/lib/dpkg/info/kernel-2.4-cn.postrm
354 rm -f /var/lib/dpkg/info/kernel-2.4-cn.postrm.$$
357 ################################################################################
359 # fix old kernel-cn postrm
360 if [ -e /var/lib/dpkg/info/kernel-cn.postrm ]; then
361 echo "CN: Fixed old kernel-cn postrm."
362 cat > /var/lib/dpkg/info/kernel-cn.postrm.$$ <<EOF
368 if [ "$1" != "remove" ]; then
372 # import CN-functions
373 . /usr/share/carnet-tools/functions.sh
375 # remove us from limits.conf
376 cp-update -r kernel-cn /etc/security/limits.conf
378 # remove us from modules
379 cp-update -r kernel-cn /etc/modules
381 if ! cmp -s /var/lib/dpkg/info/kernel-cn.postrm \
382 /var/lib/dpkg/info/kernel-cn.postrm.$$; then
383 mv /var/lib/dpkg/info/kernel-cn.postrm.$$ \
384 /var/lib/dpkg/info/kernel-cn.postrm
385 chmod +x /var/lib/dpkg/info/kernel-cn.postrm
387 rm -f /var/lib/dpkg/info/kernel-cn.postrm.$$
390 ################################################################################
392 # dh_installdeb will replace this with shell code automatically
393 # generated by other debhelper scripts.