implement clean_chroot,

grml-debootstrap

@@ -13,7 +13,14 @@
    last_bash_command="$BASH_COMMAND"
    echo "Unexpected non-zero exit code $last_exit_code in ${BASH_SOURCE[*]} at line ${BASH_LINENO[*]} detected!
 last bash command: $last_bash_command"
-   ## Check if "bailout" function is already available.
+   if [ -r "$MNTPOINT/debootstrap/debootstrap.log" ] && \
+          [ -s "$MNTPOINT/debootstrap/debootstrap.log" ] ; then
+       einfo "Presenting last ten lines of debootstrap.log:"
+       tail -10 "${MNTPOINT}"/debootstrap/debootstrap.log
+       einfo "End of debootstrap.log"
+   fi
+   ## Check if "bailout" function is available.
+   ## This is not the case in chroot-script.
    if command -v bailout >/dev/null 2>&1; then
       bailout 1
    else
@@ -289,12 +296,12 @@
         fi
       done
 
       [ -x "$MNTPOINT"/bin/umount ] && clean_chroot "$MNTPOINT" umount -a >/dev/null 2>&1 || true
 
       # ugly, but make sure we really don't leave anything (/proc /proc and
       # /dev /dev are intended, trying to work around timing issues, see #657023)
       for ARG in /run/udev /sys /proc /proc /dev/pts /dev/pts /dev /dev ; do
         [ -x "$MNTPOINT"/bin/umount ] && clean_chroot "$MNTPOINT" umount $ARG >/dev/null 2>&1 || true
         umount "$MNTPOINT"/$ARG >/dev/null 2>&1 || true
       done
 
@@ -808,7 +815,7 @@
 prompt_for_release()
 {
   [ -n "$RELEASE" ] && DEFAULT_RELEASE="$RELEASE" || DEFAULT_RELEASE='bullseye'
   RELEASE="$(dialog --stdout --title "${PN}" --default-item $DEFAULT_RELEASE --menu \
             "Please enter the Debian release you would like to use for installation:" \
             0 50 8 \
             buster   Debian/10 \
@@ -860,7 +867,7 @@
 {
   [ -n "$ISO" ] && DEFAULT_MIRROR='local' || DEFAULT_MIRROR='net'
 
   CHOOSE_MIRROR=$(dialog --stdout --title "$PN" --default-item $DEFAULT_MIRROR \
           --menu "Where do you want to install from?" 0 0 0 \
             net   "install via network (downloading from mirror)" \
             local "install from local directory/mirror"
@@ -870,13 +877,13 @@
      [ -n "$MIRROR" ] || MIRROR='http://deb.debian.org/debian'
      MIRROR="$(dialog --stdout --title "${PN}" --inputbox \
                "Please enter Debian mirror you would like to use for installing packages." \
                0 0 $MIRROR)" || bailout
 
   else # CHOOSE_MIRROR == local
      [ -n "$ISO" ] || ISO='/mnt/mirror'
      ISO="$(dialog --stdout --title "${PN}" --inputbox \
                "Please enter directory name you would like to use for installing packages." \
                0 0 $ISO)" || bailout
   fi
 }
 # }}}
@@ -1843,12 +1850,12 @@
   [ -n "$TUNE2FS" ]                   && echo "TUNE2FS='${TUNE2FS//\'/\'\\\'\'}'"                                   >> "$CHROOT_VARIABLES"
   [ -n "$VMSIZE" ]                    && echo "VMSIZE='${VMSIZE//\'/\'\\\'\'}'"                                     >> "$CHROOT_VARIABLES"
 
   cp $VERBOSE "${CONFFILES}"/chroot-script "${MNTPOINT}"/bin/chroot-script
   chmod 755 "${MNTPOINT}"/bin/chroot-script
   [ -d "$MNTPOINT"/etc/debootstrap/ ] || mkdir "$MNTPOINT"/etc/debootstrap/
 
   # make sure we have our files for later use via chroot-script
   cp $VERBOSE "${CONFFILES}/config"           "${MNTPOINT}"/etc/debootstrap/
   # make sure we adjust the configuration variables accordingly:
   sed -i "s#RELEASE=.*#RELEASE=\"$RELEASE\"#" "${MNTPOINT}"/etc/debootstrap/config
   sed -i "s#TARGET=.*#TARGET=\"$TARGET\"#"    "${MNTPOINT}"/etc/debootstrap/config
@@ -1867,20 +1874,20 @@
       PACKAGES_FILE="packages-arm64"
     fi
 
     cp $VERBOSE "${_opt_packages:-$CONFFILES/$PACKAGES_FILE}" \
       "${MNTPOINT}/etc/debootstrap/${PACKAGES_FILE}"
   fi
 
   # debconf preseeding:
   _opt_debconf=${_opt_debconf:-$CONFFILES/debconf-selections}
   [ -f "${_opt_debconf}" ] && [ "$DEBCONF" = 'yes' ] && \
     cp $VERBOSE "${_opt_debconf}" "${MNTPOINT}"/etc/debootstrap/debconf-selections
 
   # copy scripts that should be executed inside the chroot:
   _opt_chroot_scripts=${_opt_chroot_scripts:-$CONFFILES/chroot-scripts/}
   [ -d "$_opt_chroot_scripts" ] && [ "$CHROOT_SCRIPTS" = 'yes' ] && {
     mkdir -p "${MNTPOINT}"/etc/debootstrap/chroot-scripts
     cp -a $VERBOSE "${_opt_chroot_scripts}"/* "${MNTPOINT}"/etc/debootstrap/chroot-scripts/
   }
 
   # notice: do NOT use $CHROOT_VARIABLES inside chroot but statically file instead!