etc/grml/fai/config/scripts/GRMLBASE/98-clean-chroot

   1 #!/bin/bash
   2 # Filename:      ${GRML_FAI_CONFIG}/config/scripts/GRMLBASE/98-clean-chroot
   3 # Purpose:       clean up chroot system
   4 # Authors:       grml-team (grml.org), (c) Michael Prokop <mika@grml.org>
   5 # Bug-Reports:   see http://grml.org/bugs/
   6 # License:       This file is licensed under the GPL v2.
   7 ################################################################################
   8
   9 set -u
  10 set -e
  11
  12 if ! [ $(ls $target/boot/config-* 2>/dev/null) ] ; then
  13   echo "No kernel config files (/boot/config-*) found. No kernel-image package installed?" >&2
  14   exit 1
  15 fi
  16
  17 echo "Creating ~/.zshrc"
  18 touch $target/root/.zshrc
  19
  20 if [ -x $target/usr/sbin/localepurge ] ; then
  21   echo "Running localepurge"
  22   $ROOTCMD localepurge
  23 else
  24   echo "Warning: localepurg not installed"
  25 fi
  26
  27 # revert dpkg-divert of hooks/instsoft.GRMLBASE, which is
  28 # used to work around /etc/kernel/postinst.d/zz-update-grub failing
  29 # inside openvz environment, see #597084
  30 if $ROOTCMD dpkg-divert --list | grep -q '/usr/sbin/update-grub' ; then
  31   echo "Undoing dpkg-divert of update-grub executable"
  32   $ROOTCMD rm -f /usr/sbin/update-grub
  33   $ROOTCMD dpkg-divert --rename --remove /usr/sbin/update-grub
  34 fi
  35
  36 echo "Removing /var/lib/apt/lists/*-stuff, dpkg-status-old and pkgcache.bin"
  37 rm -f $target/var/lib/apt/lists/*Packages \
  38       $target/var/lib/apt/lists/*Release \
  39       $target/var/lib/apt/lists/*Sources \
  40       $target/var/lib/apt/lists/*IndexDiff \
  41       $target/var/lib/apt/lists/*.gpg \
  42       $target/var/cache/apt-show-versions/* \
  43       $target/var/cache/debconf/templates.dat-old \
  44       $target/var/cache/apt/*.bin
  45
  46 echo "Cleaning apt places"
  47 $ROOTCMD apt-get check 2>/dev/null
  48 $ROOTCMD dpkg --clear-avail
  49 $ROOTCMD apt-cache gencaches 2>/dev/null
  50 $ROOTCMD apt-get clean
  51
  52 rm -f $target/var/lib/dpkg/status-old $target/var/lib/dpkg/available-old
  53
  54 if ! [ -x $target/usr/bin/grep-dctrl ] ; then
  55   echo "Warning: grep-dctrl not installed"
  56 else
  57   echo "Cleaning up /var/lib/dpkg/status"
  58   if $ROOTCMD grep-dctrl -v -F Status "purge ok not-installed" \
  59     /var/lib/dpkg/status > $target/var/lib/dpkg/status.new ; then
  60     mv $target/var/lib/dpkg/status.new $target/var/lib/dpkg/status
  61     chmod 644 $target/var/lib/dpkg/status
  62     chown root:root $target/var/lib/dpkg/status
  63   fi
  64 fi
  65
  66 echo "Removing host ssh-keys"
  67 rm -f $target/etc/ssh/*key*
  68
  69 if [ -d $target/var/spool/squid/ ] ; then
  70   echo "Cleaning /var/spool/squid/0*"
  71   rm -rf $target/var/spool/squid/0*
  72 fi
  73
  74 echo "Cleaning and removing some misc files and directories"
  75 find $target/etc -type f -name *.pre_fcopy -delete
  76 rm -rf --one-file-system $target/etc/sysconfig/* \
  77        $target/etc/motd.dpkg-* $target/etc/auto.master.*dpkg* \
  78        $target/etc/samba/*.SID $target/etc/samba/*.tdb \
  79        $target/var/log/ksymoops/* \
  80        $target/var/state/* $target/var/log/nessus/* \
  81        $target/halt $target/reboot $target/ash.static \
  82        $target/etc/dhcpc/*.info $target/etc/dhcpc/resolv* \
  83        $target/etc/*passwd- $target/etc/*shadow- \
  84        $target/etc/*group- $target/var/spool/postfix/maildrop/* \
  85        $target/etc/*.old $target/etc/*.original \
  86        $target/etc/lvm/.cache $target/etc/lvm/cache/.cache \
  87        $target/etc/lvm/backup/main $target/tmp/* \
  88        $target/var/tmp/* $target/var/backups/* \
  89        $target/var/lib/mysql $target/var/log/lilo_log.* $target/core*
  90
  91 # remove only "temporary" or saved files in the given directories
  92 nuke(){
  93   for i in $(find "$@" -name \*.gz -o -name \*.bz2 -o -name \*.0 2>/dev/null); do
  94     rm -f --one-file-system "$i"
  95   done
  96 }
  97
  98 # set all files in the given directories to a length of zero
  99 zero(){
 100   for i in $(find "$@" -type f -size +0 -not -name \*.ini 2>/dev/null); do
 101     :> "$i"
 102   done
 103 }
 104
 105 echo "Cleaning log and cache directories"
 106 nuke ${target}/var/log       ${target}/var/cache
 107 zero ${target}/var/local     ${target}/var/log \
 108      ${target}/var/spool     ${target}/var/lib/games \
 109      ${target}/var/cache/man ${target}/var/lib/nfs \
 110      ${target}/var/lib/xkb   ${target}/var/mail/grml \
 111      ${target}/var/account/pacct
 112
 113 # on /run we don't have to create it
 114 if [ -d ${target}/var/run ] ; then
 115   echo "Recreate empty utmp and wtmp"
 116   :>${target}/var/run/utmp
 117   :>${target}/var/run/wtmp
 118 fi
 119
 120 if ! [ -x $target/usr/sbin/update-ca-certificates ] ; then
 121   echo "Warning: update-ca-certificates not installed"
 122 else
 123   echo "Updating ca-certificates"
 124   $ROOTCMD update-ca-certificates
 125 fi
 126
 127 # regenerate ls.so.cache
 128 if ! [ -x $target/sbin/ldconfig ] ; then
 129   echo "Warning: ldconfig not installed"
 130 else
 131   echo "Updating ld.so.cache"
 132   $ROOTCMD ldconfig
 133 fi
 134
 135 if ! [ -x $target/usr/bin/update-menus ] ; then
 136   echo "Warning: update-menus not installed"
 137 else
 138   echo "Updating windowmanager menus"
 139   $ROOTCMD update-menus -v
 140 fi
 141
 142 if ! [ -x $target/usr/bin/mandb ] ; then
 143   echo "Warning: mandb not installed"
 144 else
 145   echo "Updating mandb"
 146   $ROOTCMD mandb -c
 147   $ROOTCMD man doesnotexist >/dev/null 2>&1 || true
 148 fi
 149
 150 if ! [ -d $target/var/lib/clamav/ ] ; then
 151   echo "Warning: clamav[-freshclam] not installed"
 152 else
 153   echo "Cleaning /var/lib/clamav/"
 154   $ROOTCMD rm -rf /var/lib/clamav/clamav-*
 155
 156   echo "Setting up daily.cvd and main.cvd symlinks"
 157   if [ -f $target/var/lib/clamav/daily.cvd ] ; then
 158     mkdir -p $target/usr/share/doc/clamav-freshclam/examples/
 159     ln -sf /var/lib/clamav/daily.cvd $target/usr/share/doc/clamav-freshclam/examples/
 160     ln -sf /var/lib/clamav/main.cvd  $target/usr/share/doc/clamav-freshclam/examples/
 161   fi
 162 fi
 163
 164 if ! [ -r $target/etc/ld.so.nohwcap ] ; then
 165    echo "Creating /etc/ld.so.nohwcap"
 166    touch $target/etc/ld.so.nohwcap
 167 fi
 168
 169 # installation of resolvconf in chroot *with* /proc
 170 # is different from an installation without /proc,
 171 # so make sure it is OK in any case
 172 if ! [ -d $target/etc/resolvconf ] ; then
 173   echo "Warning: resolvconf not installed"
 174 else
 175   echo "Setting up resolvconf"
 176   if [ -L $target/etc/resolvconf/run ] ; then # resolvconf with /run
 177     # /etc/resolvconf/run symlinks to /run/resolvconf
 178     RESOLV_CONF=/run/resolvconf/
 179   else # no /run present
 180     RESOLV_CONF=/etc/resolvconf/run/
 181   fi
 182
 183   rm -rf   ${target}/${RESOLV_CONF}
 184   mkdir -p ${target}/${RESOLV_CONF}
 185
 186   touch ${target}/${RESOLV_CONF}/enable-updates
 187   mkdir ${target}/${RESOLV_CONF}/interface
 188
 189   cat > ${target}/${RESOLV_CONF}/resolv.conf << EOF
 190 # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
 191 #     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
 192 EOF
 193 fi
 194
 195 if ! [ -x $target/usr/bin/updatedb ] ; then
 196   echo "Warning: updatedb not installed"
 197 else
 198   echo "Updating locate-database"
 199   $ROOTCMD updatedb --prunepaths='/tmp /usr/tmp /var/tmp /grml /root /proc /sys'
 200 fi
 201
 202 ## END OF FILE #################################################################
 203 # vim:ft=sh expandtab ai tw=80 tabstop=4 shiftwidth=2