fromiso: add support for local ISO (ONIE)

[live-boot-grml.git] / components / 9990-misc-helpers.sh

diff --git a/components/9990-misc-helpers.sh b/components/9990-misc-helpers.sh
index 60709de..1b89e59 100755 (executable)
--- a/components/9990-misc-helpers.sh
+++ b/components/9990-misc-helpers.sh
@@ -120,15 +120,32 @@ check_dev ()
 
                if [ "$ISO_DEVICE" = "/" ]
                then
-                       echo "Warning: device for bootoption fromiso= ($FROMISO) not found.">>/boot.log
+                       # not a block device, check if it's an iso file, for
+                       # example an ISO when booting on an ONIE system
+                       if echo "${FROMISO}" | grep -q "\.iso$"
+                       then
+                               fs_type=$(get_fstype "${FROMISO}")
+                               if is_supported_fs ${fs_type}
+                               then
+                                       mkdir /run/live/fromiso
+                                       mount -t $fs_type "${FROMISO}" /run/live/fromiso
+                                       if [ "$?" != 0 ]
+                                       then
+                                               echo "Warning: unable to mount ${FROMISO}." >>/boot.log
+                                       fi
+                                       devname="/run/live/fromiso"
+                               fi
+                       else
+                               echo "Warning: device for bootoption fromiso= ($FROMISO) not found.">>/boot.log
+                       fi
                else
                        fs_type=$(get_fstype "${ISO_DEVICE}")
                        if is_supported_fs ${fs_type}
                        then
-                               mkdir /live/fromiso
-                               mount -t $fs_type "$ISO_DEVICE" /live/fromiso
+                               mkdir /run/live/fromiso
+                               mount -t $fs_type "$ISO_DEVICE" /run/live/fromiso
                                ISO_NAME="$(echo $FROMISO | sed "s|$ISO_DEVICE||")"
-                               loopdevname=$(setup_loop "/live/fromiso/${ISO_NAME}" "loop" "/sys/block/loop*" "" '')
+                               loopdevname=$(setup_loop "/run/live/fromiso/${ISO_NAME}" "loop" "/sys/block/loop*" "" '')
                                devname="${loopdevname}"
                        else
                                echo "Warning: unable to mount $ISO_DEVICE." >>/boot.log
@@ -1054,7 +1071,7 @@ find_persistence_media ()
        # in one union together.
        #
        black_listed_devices=""
-       for d in /run/live/rootfs/* /live/findiso /live/fromiso
+       for d in /run/live/rootfs/* /run/live/findiso /run/live/fromiso
        do
                black_listed_devices="${black_listed_devices} $(what_is_mounted_on d)"
        done