X-Git-Url: http://git.grml.org/?a=blobdiff_plain;f=usr_sbin%2Fgrml2ram;h=05b0ceae688da8d47b2499d2b2a991822da1424b;hb=0c2ca6d03c11580038978c3bcd7eba02d788bac2;hp=bbd4bd69f2488449cb05ae78b424e40c74bc2389;hpb=58ccd74023808d32b15ebe87d741d79e0be405d0;p=grml-scripts.git

diff --git a/usr_sbin/grml2ram b/usr_sbin/grml2ram
index bbd4bd6..05b0cea 100755
--- a/usr_sbin/grml2ram
+++ b/usr_sbin/grml2ram
@@ -1,10 +1,9 @@
 #!/bin/sh
 # Filename:      grml2ram
 # Purpose:       copy compressed GRML image to RAM
-# Authors:       grml-team (grml.org), (c) Michael Schierl <schierlm-public@gmx.de>, (c) Michael Prokop <mika@grml.org>
+# Authors:       (c) Michael Schierl <schierlm-public@gmx.de>, (c) Michael Prokop <mika@grml.org>
 # Bug-Reports:   see http://grml.org/bugs/
 # License:       This file is licensed under the GPL v2.
-# Latest change: Die Dez 12 19:55:05 CET 2006 [mika]
 ################################################################################
 
 set -e
@@ -20,12 +19,45 @@ if ! isgrmlcd ; then
    exit 1
 fi
 
-if ! [ -r /cdrom/GRML/GRML ] ; then
-   eerror "Can not access /cdrom/GRML/GRML. Looks like you did run grml2ram already?" ; eend 1
-   exit 1
+if [ -z "$CMDLINE" ]; then
+  # if CMDLINE was set from the outside, we're debugging.
+  # otherwise, take CMDLINE from Kernel and config files.
+  CMDLINE="$(cat /proc/cmdline)"
+  [ -d /cdrom/bootparams/ ]      && CMDLINE="$CMDLINE $(cat /cdrom/bootparams/* | tr '\n' ' ')"
+  [ -d /live/image/bootparams/ ] && CMDLINE="$CMDLINE $(cat /live/image/bootparams/* | tr '\n' ' ')"
+fi
+
+getbootparam(){
+  local line
+  local ws
+  ws='	 '
+  line=" $CMDLINE "
+  case "$line" in
+    *[${ws}]"$1="*)
+      result="${line##*[$ws]$1=}"
+      result="${result%%[$ws]*}"
+      echo "$result"
+      return 0 ;;
+    *) # no match?
+      return 1 ;;
+  esac
+}
+
+MEDIA_PATH="$(getbootparam live-media-path)"
+MEDIA_PATH="${MEDIA_PATH:-.}"
+
+IMAGE=$(find /live/image/${MEDIA_PATH}/ -name *.squashfs 2>/dev/null | head -1)
+if ! [ -r "$IMAGE" ] ; then
+   if [ -r /cdrom/GRML/GRML ] ; then
+      IMAGE='/cdrom/GRML/GRML'
+   else
+      eerror "Can not access grml squashfs file."
+      eerror "Looks like you did run grml2ram already?" ; eend 1
+      exit 1
+   fi
 fi
 
-GRMLSIZE=$(du /cdrom/GRML/GRML | awk '{print $1}')
+GRMLSIZE="$(du $IMAGE | awk '{print $1}')"
 RAM=$(/usr/bin/gawk '/MemFree/{print $2}' /proc/meminfo)
 
 case "$*" in -f|--force)
@@ -39,18 +71,26 @@ case "$*" in -f|--force)
    ;;
 esac
 
-einfo "Copying /cdrom/GRML/GRML to RAM, this might take a while."
-rsync -a --progress /cdrom/GRML/GRML /tmp/GRML
+einfo "Copying $IMAGE to RAM, this might take a while."
+rsync -a --progress $IMAGE /tmp/GRML
 LANGUAGE=C LANG=C LC_ALL=C perl << EOF
 open LOOP, '</dev/loop0' or die $!;
 open DEST, '</tmp/GRML' or die $!;
-ioctl(LOOP, 0x4C06, fileno(DEST)) or die $!
+ioctl(LOOP, 0x4C06, fileno(DEST)) or die $!;
 close LOOP;
 close DEST;
 EOF
 
-einfo "Unmounting /cdrom."
-umount /cdrom ; eend $?
-einfo "Now you can eject your grml-cd (e.g. run 'eject /dev/cdrom')." ; eend 0
+# identify cd-rom:
+GRMLDEV=$(awk '{if ($2 ~ /^\/live\/image$/ ) print $1}' /etc/mtab)
+if [ -z "$GRMLDEV" ]; then
+   GRMLDEV=$(awk '{if ($2 ~ /^\/cdrom$/ ) print $1}' /etc/mtab)
+fi     
+[ -n "$GRMLDEV" ] || GRMLDEV='/dev/cdrom'
+
+einfo "Unmounting cdrom"
+[ -d /live/image ] && umount /live/image || umount /cdrom
+eend $?
+einfo "Now you can eject your grml-cd (e.g. run 'eject $GRMLDEV')." ; eend 0
 
 ## END OF FILE #################################################################