Move installer to its own directory.

[ipfire-2.x.git] / src / installer / mountdest.sh

diff --git a/src/installer/mountdest.sh b/src/installer/mountdest.sh
new file mode 100644 (file)
index 0000000..16cf6ed
--- /dev/null
+++ b/src/installer/mountdest.sh
@@ -0,0 +1,146 @@
+###############################################################################
+#                                                                             #
+# IPFire.org - A linux based firewall                                         #
+# Copyright (C) 2007-2013  IPFire Team  <info@ipfire.org>                     #
+#                                                                             #
+# This program is free software: you can redistribute it and/or modify        #
+# it under the terms of the GNU General Public License as published by        #
+# the Free Software Foundation, either version 3 of the License, or           #
+# (at your option) any later version.                                         #
+#                                                                             #
+# This program is distributed in the hope that it will be useful,             #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
+# GNU General Public License for more details.                                #
+#                                                                             #
+# You should have received a copy of the GNU General Public License           #
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
+#                                                                             #
+###############################################################################
+
+# Set histchars to an empty string so we are able to replace an
+# exclamation mark.
+histchars=
+
+echo "Scanning for possible destination drives"
+
+function _mount() {
+       local what=${1}
+
+       # Don't mount if the device does not exist.
+       [ -e "${what}" ] || return 1
+
+       mount ${what} /harddisk 2>/dev/null
+}
+
+function _umount() {
+       umount -l /harddisk 2>/dev/null
+}
+
+function check_source_drive() {
+       local device="/dev/${1}"
+
+       local ret=1
+       local dev
+       for dev in ${device} ${device}1; do
+               # Mount the device (if possible).
+               _mount ${dev} || continue
+
+               if [ -n "$(ls /harddisk/ipfire-*.tlz 2>/dev/null)" ]; then
+                       ret=0
+               fi
+
+               _umount
+
+               # Stop if the device has been detected as a source drive.
+               [ "${ret}" = "0" ] && break
+       done
+
+       return ${ret}
+}
+
+for path in /sys/block/*; do
+       device=$(basename ${path})
+
+       # Skip devices which cannot be used.
+       case "${device}" in
+               # Virtual devices.
+               loop*|ram*)
+                       continue
+                       ;;
+               # Floppy.
+               fd*)
+                       continue
+                       ;;
+               # Cd/Tape.
+               sr*)
+                       continue
+                       ;;
+       esac
+
+       # Replace any exclamation marks (e.g. cciss!c0d0).
+       device_=${device//!/\/}
+
+       # Guess if this could be a raid device.
+       for dev in ${device_} ${device_}p1; do
+               if [ -e "/dev/${dev}" ]; then
+                       device=${dev}
+                       break
+               fi
+       done
+
+       # Check if user want skip by commandline
+       if [ "$(grep "skipdst=${device_}" /proc/cmdline)" ]; then
+               echo "${device_} was skipped via cmdline."
+               continue
+       fi
+
+       echo "Checking ${device_}"
+       if check_source_drive ${device_}; then
+               echo "  is source drive - skipping"
+               continue
+       fi
+
+       device_size=$(cat /sys/block/${device}/size)
+       if [ "${device_size}" = "0" ]; then
+               echo "  is empty - skipping"
+               continue
+       fi
+
+       # Found it.
+       echo "  OK, this is it..."
+       echo -n "${device_}" > /tmp/dest_device
+
+       if [ ${device_size} -gt 0 ]; then
+               # Disk size to GiB.
+               device_size=$(( ${device_size} / 2097152 ))
+
+               # Build string with drive details
+               device_str="/dev/${device_} - ${device_size} GiB -"
+       else
+               device_str="/dev/${device_} -"
+       fi
+       device_str="${device_str} $(cat /sys/block/${device}/device/vendor)"
+       device_str="${device_str} $(cat /sys/block/${device}/device/model)"
+
+       # Remove all whitespace.
+       device_str=$(echo ${device_str})
+
+       echo -n "${device_str}" > /tmp/dest_device_info
+
+       # Exit code table:
+       #  1: sda
+       #  2: RAID
+       # 10: nothing found
+       case "${device_}" in
+               *p1|*c0d0)
+                       exit 2
+                       ;;
+               *)
+                       exit 1
+                       ;;
+       esac
+done
+
+# Nothing found.
+exit 10