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-* &>/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 $ROOTCMD rm -f /etc/apt/apt.conf.d/90grml-apt-proxy.conf
  21
  22 if [ -x $target/usr/sbin/localepurge ] ; then
  23   echo "Running localepurge"
  24   $ROOTCMD localepurge
  25 else
  26   echo "Warning: localepurge not installed"
  27 fi
  28
  29 # revert dpkg-divert of hooks/instsoft.GRMLBASE, which is
  30 # used to work around /etc/kernel/postinst.d/zz-update-grub failing
  31 # inside openvz environment, see #597084
  32 if $ROOTCMD dpkg-divert --list | grep -q '/usr/sbin/update-grub' ; then
  33   echo "Undoing dpkg-divert of update-grub executable"
  34   $ROOTCMD rm -f /usr/sbin/update-grub
  35   $ROOTCMD dpkg-divert --rename --remove /usr/sbin/update-grub
  36 fi
  37
  38 # revert udev workaround of hooks/updatebase.GRMLBASE
  39 if grep -q 'updatebase.GRMLBASE' ${target}/etc/udev/kernel-upgrade 2>/dev/null ; then
  40   echo "Removing /etc/udev/kernel-upgrade created by updatebase.GRMLBASE"
  41   $ROOTCMD rm -f /etc/udev/kernel-upgrade
  42 fi
  43
  44 echo "Updating package list"
  45 $ROOTCMD apt-get update
  46
  47 echo "Cleaning apt places"
  48 $ROOTCMD apt-get check 2>/dev/null
  49 $ROOTCMD dpkg --clear-avail
  50 $ROOTCMD apt-cache gencaches 2>/dev/null
  51 $ROOTCMD apt-get clean
  52
  53 rm -f $target/var/lib/dpkg/status-old $target/var/lib/dpkg/available-old
  54
  55 if ! [ -x $target/usr/bin/grep-dctrl ] ; then
  56   echo "Warning: grep-dctrl not installed"
  57 else
  58   echo "Cleaning up /var/lib/dpkg/status"
  59   if $ROOTCMD grep-dctrl -v -F Status "purge ok not-installed" \
  60     /var/lib/dpkg/status > $target/var/lib/dpkg/status.new ; then
  61     mv $target/var/lib/dpkg/status.new $target/var/lib/dpkg/status
  62     chmod 644 $target/var/lib/dpkg/status
  63     chown root:root $target/var/lib/dpkg/status
  64   fi
  65 fi
  66
  67 echo "Removing host ssh-keys"
  68 rm -f $target/etc/ssh/*key*
  69
  70 echo "Removing dbus machine-id"
  71 rm -f $target/var/lib/dbus/machine-id
  72
  73 if [ -d $target/var/spool/squid/ ] ; then
  74   echo "Cleaning /var/spool/squid/0*"
  75   rm -rf $target/var/spool/squid/0*
  76 fi
  77
  78 echo "Cleaning and removing some misc files and directories"
  79 find $target/etc -type f -name *.pre_fcopy -delete
  80 find $target/etc -type l -name *.pre_fcopy -delete
  81 rm -rf --one-file-system $target/etc/sysconfig/* \
  82        $target/etc/motd.dpkg-* $target/etc/auto.master.*dpkg* \
  83        $target/etc/samba/*.SID $target/etc/samba/*.tdb \
  84        $target/var/log/ksymoops/* \
  85        $target/var/state/* $target/var/log/nessus/* \
  86        $target/halt $target/reboot $target/ash.static \
  87        $target/etc/dhcpc/*.info $target/etc/dhcpc/resolv* \
  88        $target/etc/*passwd- $target/etc/*shadow- \
  89        $target/etc/*group- $target/var/spool/postfix/maildrop/* \
  90        $target/etc/*.old $target/etc/*.original \
  91        $target/etc/lvm/.cache $target/etc/lvm/cache/.cache \
  92        $target/etc/lvm/backup/* $target/tmp/* \
  93        $target/var/tmp/* $target/var/backups/* \
  94        $target/var/lib/mysql $target/var/log/lilo_log.* $target/core*
  95
  96 # remove only "temporary" or saved files in the given directories
  97 nuke(){
  98   for i in $(find "$@" -name \*.gz -o -name \*.bz2 -o -name \*.0 2>/dev/null); do
  99     rm -f --one-file-system "$i"
 100   done
 101 }
 102
 103 # set all files in the given directories to a length of zero
 104 zero(){
 105   for i in $(find "$@" -type f -size +0 -not -name \*.ini -not -path '*/fai/*' -not -name install_packages.list 2>/dev/null); do
 106     :> "$i"
 107   done
 108 }
 109
 110 echo "Cleaning log and cache directories"
 111 nuke ${target}/var/log       ${target}/var/cache
 112 zero ${target}/var/account/pacct \
 113      ${target}/var/cache/man \
 114      ${target}/var/lib/games \
 115      ${target}/var/lib/nfs   \
 116      ${target}/var/lib/xkb   \
 117      ${target}/var/local     \
 118      ${target}/var/log       \
 119      ${target}/var/mail/grml
 120
 121 # on /run we don't have to create it
 122 if [ -d ${target}/var/run ] ; then
 123   echo "Recreate empty utmp and wtmp"
 124   :>${target}/var/run/utmp
 125   :>${target}/var/run/wtmp
 126 fi
 127
 128 if ! [ -x $target/usr/sbin/update-ca-certificates ] ; then
 129   echo "Warning: update-ca-certificates not installed"
 130 else
 131   echo "Updating ca-certificates"
 132   $ROOTCMD update-ca-certificates
 133 fi
 134
 135 # regenerate ls.so.cache
 136 if ! [ -x $target/sbin/ldconfig ] ; then
 137   echo "Warning: ldconfig not installed"
 138 else
 139   echo "Updating ld.so.cache"
 140   $ROOTCMD ldconfig
 141 fi
 142
 143 if ! [ -x $target/usr/bin/update-menus ] ; then
 144   echo "Warning: update-menus not installed"
 145 else
 146   echo "Updating windowmanager menus"
 147   $ROOTCMD update-menus -v
 148 fi
 149
 150 if ! [ -x $target/usr/bin/mandb ] ; then
 151   echo "Warning: mandb not installed"
 152 else
 153   echo "Updating mandb"
 154   $ROOTCMD mandb -c
 155   $ROOTCMD man doesnotexist >/dev/null 2>&1 || true
 156 fi
 157
 158 if ! [ -d $target/var/lib/clamav/ ] ; then
 159   echo "Warning: clamav[-freshclam] not installed"
 160 else
 161   echo "Cleaning /var/lib/clamav/"
 162   $ROOTCMD rm -rf /var/lib/clamav/clamav-*
 163
 164   echo "Setting up daily.cvd and main.cvd symlinks"
 165   if [ -f $target/var/lib/clamav/daily.cvd ] ; then
 166     mkdir -p $target/usr/share/doc/clamav-freshclam/examples/
 167     ln -sf /var/lib/clamav/daily.cvd $target/usr/share/doc/clamav-freshclam/examples/
 168     ln -sf /var/lib/clamav/main.cvd  $target/usr/share/doc/clamav-freshclam/examples/
 169   fi
 170 fi
 171
 172 if ! [ -r $target/etc/ld.so.nohwcap ] ; then
 173    echo "Creating /etc/ld.so.nohwcap"
 174    touch $target/etc/ld.so.nohwcap
 175 fi
 176
 177 # installation of resolvconf in chroot *with* /proc
 178 # is different from an installation without /proc,
 179 # so make sure it is OK in any case
 180 if ! [ -d $target/etc/resolvconf ] ; then
 181   echo "Warning: resolvconf not installed"
 182 else
 183   echo "Setting up resolvconf"
 184   if [ ! -L $target/etc/resolvconf/run ] ; then # resolvconf without symlink?!
 185     RESOLV_CONF=/etc/resolvconf/run
 186     rm -rf   ${target}/${RESOLV_CONF}
 187     mkdir -p ${target}/${RESOLV_CONF}
 188
 189     touch ${target}/${RESOLV_CONF}/enable-updates
 190     mkdir ${target}/${RESOLV_CONF}/interface
 191
 192     cat > ${target}/${RESOLV_CONF}/resolv.conf << EOF
 193 # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
 194 #     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
 195 EOF
 196   fi
 197   rm -f ${target}/etc/resolv.conf
 198   $ROOTCMD ln -s /etc/resolvconf/run/resolv.conf /etc/resolv.conf
 199 fi
 200
 201 if ! $ROOTCMD test -x /usr/bin/updatedb ; then
 202   echo "Warning: updatedb not installed"
 203 else
 204   echo "Updating locate-database"
 205   $ROOTCMD updatedb --prunepaths='/tmp /usr/tmp /var/tmp /grml /root /proc /sys'
 206 fi
 207
 208 ## END OF FILE #################################################################
 209 # vim:ft=sh expandtab ai tw=80 tabstop=4 shiftwidth=2