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
106 # create/update grub configuration
107 if [ -e /boot/grub/menu.lst ]; then
108 # is there uncompatibile grub conf present?
109 if ! grep -q 'AUTOMAGIC KERNELS LIST' /boot/grub/menu.lst; then
110 mv -f /boot/grub/menu.lst /boot/grub/menu.lst.old
113 if [ ! -e /boot/grub/menu.lst ]; then
114 yes | /usr/sbin/update-grub >/dev/null 2>&1 || true
116 /usr/sbin/update-grub >/dev/null 2>&1 || true
119 if ! grub-install --no-floppy '(hd0)' >/dev/null 2>&1; then
121 echo "CN: FATAL ERROR running grub-install!"
122 echo "CN: Do not reboot your server and report this to OTRS immediately!"
128 if [ -e /etc/lilo.conf ]; then
129 mv -f /etc/lilo.conf /etc/lilo.conf.old
134 if [ -x /usr/share/mdadm/mkconf ]; then
135 if [ ! -e /etc/mdadm/mdadm.conf ]; then
136 touch /etc/mdadm/mdadm.conf
139 /usr/share/mdadm/mkconf > /etc/mdadm/mdadm.conf.$$
140 if ! cmp -s /etc/mdadm/mdadm.conf.$$ /etc/mdadm/mdadm.conf; then
141 mv /etc/mdadm/mdadm.conf.$$ /etc/mdadm/mdadm.conf
143 rm -f /etc/mdadm/mdadm.conf.$$ /etc/initramfs-tools/hooks/md \
144 /var/lib/mdadm/CONF-UNCHECKED
148 # update initramfs accordingly
149 update-initramfs -u -k all >/dev/null 2>&1 || true
155 ################################################################################
157 # rest of configuration...
158 echo -n "CN: Modifying the neccessary system files:"
161 if getent group proc >/dev/null 2>&1; then
162 groupdel proc >/dev/null 2>&1
166 # remove oidentd from oident group
167 if getent group oident >/dev/null 2>&1; then
169 cp_check_and_sed '^OIDENT_GROUP[[:blank:]]*=[[:blank:]]*nogroup' \
170 's/^OIDENT_GROUP[[:blank:]]*=[[:blank:]]*nogroup/OIDENT_GROUP=oident/g' \
171 /etc/default/oidentd || true
173 # old kernel-2.6-cn default
174 cp_check_and_sed '^OIDENT_GROUP[[:blank:]]*=[[:blank:]]*proc' \
175 's/^OIDENT_GROUP[[:blank:]]*=[[:blank:]]*proc/OIDENT_GROUP=oident/g' \
176 /etc/default/oidentd || true
181 # default kernel parameters
182 rm -f /etc/sysctl.conf.$$
183 cat > /etc/sysctl.conf.$$ <<EOF
185 kernel.maps_protect=1
186 net.core.rmem_default=1048576
187 net.core.wmem_default=1048576
188 net.ipv4.conf.all.accept_redirects=0
189 net.ipv4.conf.all.accept_source_route=0
190 net.ipv4.conf.all.log_martians=1
191 net.ipv4.conf.all.rp_filter=1
192 net.ipv4.conf.all.secure_redirects=1
193 net.ipv4.conf.all.send_redirects=0
194 net.ipv4.icmp_echo_ignore_broadcasts=1
195 net.ipv4.icmp_ignore_bogus_error_responses=1
196 net.ipv4.ip_forward=0
197 net.ipv4.ip_local_port_range=10000 65000
198 net.ipv4.tcp_congestion_control=cubic
200 net.ipv4.tcp_max_syn_backlog=8192
201 net.ipv4.tcp_retries1=2
202 net.ipv4.tcp_rfc1337=1
203 net.ipv4.tcp_syncookies=1
204 vm.mmap_min_addr=65536
208 if [ -e /etc/sysctl.conf ]; then
209 #cat /etc/sysctl.conf >> /etc/sysctl.conf.$$
210 #ignore some of 2.4 stuff
211 egrep -v 'net\.core\.(r|w)mem_max|net\.ipv4\.tcp_(r|w)mem|vm\.bdflush|net\.ipv4\.ip_local_port_range|kernel\.rtsig-max|net\.ipv4\.tcp_syncookies' \
212 /etc/sysctl.conf >> /etc/sysctl.conf.$$
215 # add sysctl.conf Debian headers
216 rm -f /etc/sysctl.conf-head
217 cat > /etc/sysctl.conf-head <<EOF
219 # /etc/sysctl.conf - Configuration file for setting system variables
220 # See sysctl.conf (5) for information.
224 # merge old and new in one conf, primarily respecting old
231 if (/^\s*(\S+)\s*=\s*(.+)\s*$/o)
233 my ($key, $value) = ($1, $2);
235 $confhash{$key} = $value;
238 for (sort { $a cmp $b } keys %confhash)
240 print $_, "=", $confhash{$_}, "\n";
243 rm -f /etc/sysctl.conf-new
244 perl -e "$script" < /etc/sysctl.conf.$$ > /etc/sysctl.conf-new
245 cat /etc/sysctl.conf-head /etc/sysctl.conf-new > /etc/sysctl.conf.$$
246 rm -f /etc/sysctl.conf-head /etc/sysctl.conf-new
248 # finished with merging, move into sysctl.conf
249 cp_mv /etc/sysctl.conf.$$ /etc/sysctl.conf
250 echo -n " sysctl.conf"
252 # finished with basic kernel-2.6-cn stuff
255 ################################################################################
258 echo -n "CN: Setting up PAM configurations:"
260 # update pam_limits accordingly
261 if [ -e /etc/security/limits.conf ]; then
262 rm -f /etc/security/limits.conf.$$
263 cp /etc/security/limits.conf /etc/security/limits.conf.$$
264 cp-update kernel-2.6-cn /etc/security/limits.conf.$$ <<EOF
269 cp_mv /etc/security/limits.conf.$$ /etc/security/limits.conf
274 if [ -e /etc/pam.d/login ]; then
275 cp_check_and_sed '^#.*session.+required.+pam_limits.so' \
276 's/^#.*session.+required.+pam_limits.so/session required pam_limits.so/' \
277 /etc/pam.d/login || true
282 if [ -e /etc/pam.d/ssh ]; then
283 cp_check_and_sed '^#.*session.+required.+pam_limits.so' \
284 's/^#.*session.+required.+pam_limits.so/session required pam_limits.so/' \
285 /etc/pam.d/ssh || true
292 ################################################################################
294 # remove obsolete links
295 rm -f /boot/vmlinuz /boot/vmlinuz.old /boot/vmlinuz.old2 \
296 /boot/vmlinuz.plain /vmlinuz /vmlinuz.old /boot/vmlinuz.plain
297 echo "CN: Removed old symlinks in / and /boot."
299 ################################################################################
301 # fix old kernel-2.4-cn postrm
302 if [ -e /var/lib/dpkg/info/kernel-2.4-cn.postrm ]; then
303 echo "CN: Fixed old kernel-2.4-cn postrm."
304 cat > /var/lib/dpkg/info/kernel-2.4-cn.postrm.$$ <<EOF
310 if [ "$1" != "remove" ]; then
314 # import CN-functions
315 . /usr/share/carnet-tools/functions.sh
317 # remove us from limits.conf
318 cp-update -r kernel-2.4-cn /etc/security/limits.conf
320 # remove us from modules
321 cp-update -r kernel-2.4-cn /etc/modules
323 if ! cmp -s /var/lib/dpkg/info/kernel-2.4-cn.postrm \
324 /var/lib/dpkg/info/kernel-2.4-cn.postrm.$$; then
325 mv /var/lib/dpkg/info/kernel-2.4-cn.postrm.$$ \
326 /var/lib/dpkg/info/kernel-2.4-cn.postrm
327 chmod +x /var/lib/dpkg/info/kernel-2.4-cn.postrm
329 rm -f /var/lib/dpkg/info/kernel-2.4-cn.postrm.$$
332 ################################################################################
334 # fix old kernel-cn postrm
335 if [ -e /var/lib/dpkg/info/kernel-cn.postrm ]; then
336 echo "CN: Fixed old kernel-cn postrm."
337 cat > /var/lib/dpkg/info/kernel-cn.postrm.$$ <<EOF
343 if [ "$1" != "remove" ]; then
347 # import CN-functions
348 . /usr/share/carnet-tools/functions.sh
350 # remove us from limits.conf
351 cp-update -r kernel-cn /etc/security/limits.conf
353 # remove us from modules
354 cp-update -r kernel-cn /etc/modules
356 if ! cmp -s /var/lib/dpkg/info/kernel-cn.postrm \
357 /var/lib/dpkg/info/kernel-cn.postrm.$$; then
358 mv /var/lib/dpkg/info/kernel-cn.postrm.$$ \
359 /var/lib/dpkg/info/kernel-cn.postrm
360 chmod +x /var/lib/dpkg/info/kernel-cn.postrm
362 rm -f /var/lib/dpkg/info/kernel-cn.postrm.$$
365 ################################################################################
367 # dh_installdeb will replace this with shell code automatically
368 # generated by other debhelper scripts.