X-Git-Url: https://git.grml.org/?p=grml-debootstrap.git;a=blobdiff_plain;f=chroot-script;h=b5e60b45b46a703d3d852388512169c31b241291;hp=f056f619cd04749068572ba56d34d40b3eefd6e4;hb=1c82a317ed3582161d4342de21ab0eb4e107d47d;hpb=10bd5c915d6e0fd7630a6d76b21d9872a9665702

diff --git a/chroot-script b/chroot-script
index f056f61..b5e60b4 100755
--- a/chroot-script
+++ b/chroot-script
@@ -42,6 +42,15 @@ stage() {
   echo "   Executing stage ${1}"
   return 0
 }
+
+askpass() {
+  # read -s emulation for dash. result is in $resp.
+  set -o noglob
+  stty -echo
+  read resp
+  stty echo
+  set +o noglob
+}
 # }}}
 
 # define chroot mirror {{{
@@ -51,7 +60,7 @@ chrootmirror() {
 
   if [ -n "$ISO" ] ; then
      echo "deb $ISO $RELEASE $COMPONENTS" > /etc/apt/sources.list
-     [ -n "$MIRROR" ] && echo "deb $MIRROR $RELEASE $COMPONENTS" >> /etc/apt/sources.list || /bin/true
+     [ -n "$MIRROR" ] && echo "deb $MIRROR $RELEASE $COMPONENTS" >> /etc/apt/sources.list || true
   else
     if [ -n "$MIRROR" ] ; then
        echo "deb $MIRROR $RELEASE $COMPONENTS" > /etc/apt/sources.list
@@ -80,7 +89,7 @@ EOF
 
      # make sure we have the keys available for aptitude
      gpg --keyserver subkeys.pgp.net --recv-keys F61E2E7CECDEA787
-     gpg --export F61E2E7CECDEA787 | apt-key add - || /bin/true # not yet sure
+     gpg --export F61E2E7CECDEA787 | apt-key add - || true # not yet sure
      # why it's necessary, sometimes we get an error even though it works [mika]
 
      # make sure we install packages from grml's pool only if not available
@@ -129,6 +138,17 @@ EOF
 }
 # }}}
 
+# remove now useless apt cache {{{
+remove_apt_cache() {
+  if [ "$RM_APTCACHE" = 'yes' ] ; then
+    echo "Cleaning apt cache."
+    apt-get clean
+  else
+    echo "Not cleaning apt cache as \$RM_APTCACHE is unset."
+  fi
+}
+# }}}
+
 # install additional packages {{{
 packages() {
   # Pre-seed the debconf database with answers. Each question will be marked
@@ -216,10 +236,14 @@ passwords()
      echo "Setting password for user root:"
      while [ "$a" != "$b" ] ; do
        echo -n "Enter new UNIX password for user root: "
-       read -s a
+       askpass
+       a="$resp"
+       unset resp
        echo
        echo -n "Retype new UNIX password for user root: "
-       read -s b
+       askpass
+       b="$resp"
+       unset resp
        echo
        if [ "$a" != "$b" ] ; then
          echo "Sorry, passwords do not match. Retry."
@@ -374,8 +398,11 @@ grub_config() {
      # finally install grub
      if [ -x /usr/sbin/update-grub ] ; then
         UPDATEGRUB='/usr/sbin/update-grub'
-     else
+     elif [ -x /sbin/update-grub ] ; then
         UPDATEGRUB='/sbin/update-grub'
+     else
+       echo "Error: update-grub not available, can not execute it."
+       return 1
      fi
 
      # grub2:
@@ -399,33 +426,44 @@ custom_scripts() {
 services() {
   for service in ssh mdadm mdadm-raid ; do
     if [ -x /etc/init.d/"$service" ] ; then
-       /etc/init.d/"$service" stop || /bin/true
+       /etc/init.d/"$service" stop || true
     fi
   done
 }
 # }}}
 
-# unmount all filesystems in chroot, make sure nothing is left {{{
+# unmount /proc and make sure nothing is left {{{
 finalize() {
   # make sure we don't leave any sensible data
   rm -f /etc/debootstrap/variables
+
   [ -n "$POLICYRCD" ] && rm -f /usr/sbin/policy-rc.d
-  umount -a    1>/dev/null 2>/dev/null || true
-  umount /proc 1>/dev/null 2>/dev/null || true
-  umount /proc 1>/dev/null 2>/dev/null || true
-  umount -a    1>/dev/null 2>/dev/null || true
+
+  umount /proc >/dev/null 2>/dev/null || true
+}
+# }}}
+
+# signal handler {{{
+signal_handler() {
+  finalize
+  [ -n "$1" ] && EXIT="$1" || EXIT="1"
+  exit "$EXIT"
 }
 # }}}
 
+# set signal handler {{{
+trap signal_handler HUP INT QUIT TERM
+# }}}
+
 # execute the functions {{{
 
  # always execute install_policy_rcd
  install_policy_rcd
 
  for i in chrootmirror grmlrepos kernelimg_conf \
-     kernel packages extrapackages reconfigure hosts interfaces   \
-     timezone fstab hostname initrd grub_config passwords custom_scripts   \
-     services ; do
+     kernel packages extrapackages  reconfigure hosts interfaces \
+     timezone fstab hostname initrd grub_config passwords        \
+     custom_scripts remove_apt_cache services ; do
      if stage $i ; then
        $i && stage $i done || exit 1
      fi