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: localepurge 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 # revert udev workaround of hooks/updatebase.GRMLBASE
  37 if grep -q 'updatebase.GRMLBASE' ${target}/etc/udev/kernel-upgrade 2>/dev/null ; then
  38   echo "Removing /etc/udev/kernel-upgrade created by updatebase.GRMLBASE"
  39   $ROOTCMD rm -f /etc/udev/kernel-upgrade
  40 fi
  41
  42 echo "Removing /var/lib/apt/lists/*-stuff, dpkg-status-old and pkgcache.bin"
  43 rm -f $target/var/lib/apt/lists/*Packages \
  44       $target/var/lib/apt/lists/*Release \
  45       $target/var/lib/apt/lists/*Sources \
  46       $target/var/lib/apt/lists/*IndexDiff \
  47       $target/var/lib/apt/lists/*.gpg \
  48       $target/var/cache/apt-show-versions/* \
  49       $target/var/cache/debconf/templates.dat-old \
  50       $target/var/cache/apt/*.bin
  51
  52 echo "Cleaning apt places"
  53 $ROOTCMD apt-get check 2>/dev/null
  54 $ROOTCMD dpkg --clear-avail
  55 $ROOTCMD apt-cache gencaches 2>/dev/null
  56 $ROOTCMD apt-get clean
  57
  58 rm -f $target/var/lib/dpkg/status-old $target/var/lib/dpkg/available-old
  59
  60 if ! [ -x $target/usr/bin/grep-dctrl ] ; then
  61   echo "Warning: grep-dctrl not installed"
  62 else
  63   echo "Cleaning up /var/lib/dpkg/status"
  64   if $ROOTCMD grep-dctrl -v -F Status "purge ok not-installed" \
  65     /var/lib/dpkg/status > $target/var/lib/dpkg/status.new ; then
  66     mv $target/var/lib/dpkg/status.new $target/var/lib/dpkg/status
  67     chmod 644 $target/var/lib/dpkg/status
  68     chown root:root $target/var/lib/dpkg/status
  69   fi
  70 fi
  71
  72 echo "Removing host ssh-keys"
  73 rm -f $target/etc/ssh/*key*
  74
  75 if [ -d $target/var/spool/squid/ ] ; then
  76   echo "Cleaning /var/spool/squid/0*"
  77   rm -rf $target/var/spool/squid/0*
  78 fi
  79
  80 echo "Cleaning and removing some misc files and directories"
  81 find $target/etc -type f -name *.pre_fcopy -delete
  82 rm -rf --one-file-system $target/etc/sysconfig/* \
  83        $target/etc/motd.dpkg-* $target/etc/auto.master.*dpkg* \
  84        $target/etc/samba/*.SID $target/etc/samba/*.tdb \
  85        $target/var/log/ksymoops/* \
  86        $target/var/state/* $target/var/log/nessus/* \
  87        $target/halt $target/reboot $target/ash.static \
  88        $target/etc/dhcpc/*.info $target/etc/dhcpc/resolv* \
  89        $target/etc/*passwd- $target/etc/*shadow- \
  90        $target/etc/*group- $target/var/spool/postfix/maildrop/* \
  91        $target/etc/*.old $target/etc/*.original \
  92        $target/etc/lvm/.cache $target/etc/lvm/cache/.cache \
  93        $target/etc/lvm/backup/main $target/tmp/* \
  94        $target/var/tmp/* $target/var/backups/* \
  95        $target/var/lib/mysql $target/var/log/lilo_log.* $target/core*
  96
  97 # remove only "temporary" or saved files in the given directories
  98 nuke(){
  99   for i in $(find "$@" -name \*.gz -o -name \*.bz2 -o -name \*.0 2>/dev/null); do
 100     rm -f --one-file-system "$i"
 101   done
 102 }
 103
 104 # set all files in the given directories to a length of zero
 105 zero(){
 106   for i in $(find "$@" -type f -size +0 -not -name \*.ini 2>/dev/null); do
 107     :> "$i"
 108   done
 109 }
 110
 111 echo "Cleaning log and cache directories"
 112 nuke ${target}/var/log       ${target}/var/cache
 113 zero ${target}/var/account/pacct \
 114      ${target}/var/cache/man \
 115      ${target}/var/lib/games \
 116      ${target}/var/lib/nfs   \
 117      ${target}/var/lib/xkb   \
 118      ${target}/var/local     \
 119      ${target}/var/log       \
 120      ${target}/var/mail/grml
 121
 122 # on /run we don't have to create it
 123 if [ -d ${target}/var/run ] ; then
 124   echo "Recreate empty utmp and wtmp"
 125   :>${target}/var/run/utmp
 126   :>${target}/var/run/wtmp
 127 fi
 128
 129 if ! [ -x $target/usr/sbin/update-ca-certificates ] ; then
 130   echo "Warning: update-ca-certificates not installed"
 131 else
 132   echo "Updating ca-certificates"
 133   $ROOTCMD update-ca-certificates
 134 fi
 135
 136 # regenerate ls.so.cache
 137 if ! [ -x $target/sbin/ldconfig ] ; then
 138   echo "Warning: ldconfig not installed"
 139 else
 140   echo "Updating ld.so.cache"
 141   $ROOTCMD ldconfig
 142 fi
 143
 144 if ! [ -x $target/usr/bin/update-menus ] ; then
 145   echo "Warning: update-menus not installed"
 146 else
 147   echo "Updating windowmanager menus"
 148   $ROOTCMD update-menus -v
 149 fi
 150
 151 if ! [ -x $target/usr/bin/mandb ] ; then
 152   echo "Warning: mandb not installed"
 153 else
 154   echo "Updating mandb"
 155   $ROOTCMD mandb -c
 156   $ROOTCMD man doesnotexist >/dev/null 2>&1 || true
 157 fi
 158
 159 if ! [ -d $target/var/lib/clamav/ ] ; then
 160   echo "Warning: clamav[-freshclam] not installed"
 161 else
 162   echo "Cleaning /var/lib/clamav/"
 163   $ROOTCMD rm -rf /var/lib/clamav/clamav-*
 164
 165   echo "Setting up daily.cvd and main.cvd symlinks"
 166   if [ -f $target/var/lib/clamav/daily.cvd ] ; then
 167     mkdir -p $target/usr/share/doc/clamav-freshclam/examples/
 168     ln -sf /var/lib/clamav/daily.cvd $target/usr/share/doc/clamav-freshclam/examples/
 169     ln -sf /var/lib/clamav/main.cvd  $target/usr/share/doc/clamav-freshclam/examples/
 170   fi
 171 fi
 172
 173 if ! [ -r $target/etc/ld.so.nohwcap ] ; then
 174    echo "Creating /etc/ld.so.nohwcap"
 175    touch $target/etc/ld.so.nohwcap
 176 fi
 177
 178 # installation of resolvconf in chroot *with* /proc
 179 # is different from an installation without /proc,
 180 # so make sure it is OK in any case
 181 if ! [ -d $target/etc/resolvconf ] ; then
 182   echo "Warning: resolvconf not installed"
 183 else
 184   echo "Setting up resolvconf"
 185   if [ -L $target/etc/resolvconf/run ] ; then # resolvconf with /run
 186     # /etc/resolvconf/run symlinks to /run/resolvconf
 187     RESOLV_CONF=/run/resolvconf/
 188   else # no /run present
 189     RESOLV_CONF=/etc/resolvconf/run/
 190   fi
 191
 192   rm -rf   ${target}/${RESOLV_CONF}
 193   mkdir -p ${target}/${RESOLV_CONF}
 194
 195   touch ${target}/${RESOLV_CONF}/enable-updates
 196   mkdir ${target}/${RESOLV_CONF}/interface
 197
 198   cat > ${target}/${RESOLV_CONF}/resolv.conf << EOF
 199 # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
 200 #     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
 201 EOF
 202 fi
 203
 204 if ! $ROOTCMD test -x /usr/bin/updatedb ; then
 205   echo "Warning: updatedb not installed"
 206 else
 207   echo "Updating locate-database"
 208   $ROOTCMD updatedb --prunepaths='/tmp /usr/tmp /var/tmp /grml /root /proc /sys'
 209 fi
 210
 211 ## END OF FILE #################################################################
 212 # vim:ft=sh expandtab ai tw=80 tabstop=4 shiftwidth=2