Support debian_networking boot option to use Debian's network behavior

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

diff --git a/components/9990-misc-helpers.sh b/components/9990-misc-helpers.sh
index a565ed5..ef3688e 100755 (executable)
--- a/components/9990-misc-helpers.sh
+++ b/components/9990-misc-helpers.sh
@@ -15,6 +15,42 @@ is_live_path()
        return 1
 }
 
+grml_match_bootid()
+{
+       path="$1"
+
+       if [ -n "$IGNORE_BOOTID" ] ; then
+               echo " * Ignoring verification of bootid.txt as requested via ignore_bootid.">>/boot.log
+               return 0
+       fi
+
+       if [ -n "$BOOTID" ] && ! [ -r "${path}/conf/bootid.txt" ] ; then
+               echo "  * Warning: bootid=... specified but no bootid.txt found on currently requested device.">>/boot.log
+               return 1
+       fi
+
+       [ -r "${path}/conf/bootid.txt" ] || return 0
+
+       bootid_conf=$(cat "${path}/conf/bootid.txt")
+
+       if [ -z "$BOOTID" -a -z "$IGNORE_BOOTID" ]
+       then
+               echo " * Warning: bootid.txt found but ignore_bootid / bootid=.. bootoption missing...">>/boot.log
+               return 1
+       fi
+
+       if [ "$BOOTID" = "$bootid_conf" ]
+       then
+               echo " * Successfully verified /conf/bootid.txt from ISO, continuing... ">>/boot.log
+       else
+               echo " * Warning: BOOTID of ISO does not match. Retrying and continuing search...">>/boot.log
+               return 1
+       fi
+
+       return 0
+}
+
+
 matches_uuid ()
 {
        if [ "${IGNORE_UUID}" ] || [ ! -e /conf/uuid.conf ]
@@ -120,15 +156,32 @@ 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
@@ -242,7 +295,7 @@ check_dev ()
                fi
 
                if is_live_path ${mountpoint} && \
-                       ([ "${skip_uuid_check}" ] || matches_uuid ${mountpoint})
+                       ([ "${skip_uuid_check}" ] || grml_match_bootid ${mountpoint})
                then
                        echo ${mountpoint}
                        return 0
@@ -338,19 +391,6 @@ find_livefs ()
                                        return 0
                                fi
                        done
-               elif [ "${fstype}" = "squashfs" -o \
-                       "${fstype}" = "btrfs" -o \
-                       "${fstype}" = "ext2" -o \
-                       "${fstype}" = "ext3" -o \
-                       "${fstype}" = "ext4" -o \
-                       "${fstype}" = "jffs2" ]
-               then
-                       # This is an ugly hack situation, the block device has
-                       # an image directly on it.  It's hopefully
-                       # live-boot, so take it and run with it.
-                       ln -s "${devname}" "${devname}.${fstype}"
-                       echo "${devname}.${fstype}"
-                       return 0
                fi
        done
 
@@ -1054,7 +1094,7 @@ find_persistence_media ()
        # in one union together.
        #
        black_listed_devices=""
-       for d in /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
@@ -1369,7 +1409,7 @@ do_union ()
 
 get_custom_mounts ()
 {
-       # Side-effect: leaves $devices with persistence.conf mounted in /live/persistence
+       # Side-effect: leaves $devices with persistence.conf mounted in /run/live/persistence
        # Side-effect: prints info to file $custom_mounts
 
        local custom_mounts devices bindings links
@@ -1400,7 +1440,7 @@ get_custom_mounts ()
 
                if [ -n "${LIVE_BOOT_DEBUG}" ] && [ -e "${include_list}" ]
                then
-                       cp ${include_list} /live/persistence/${persistence_list}.${device_name}
+                       cp ${include_list} /run/live/persistence/${persistence_list}.${device_name}
                fi
 
                while read dir options # < ${include_list}
@@ -1585,7 +1625,7 @@ activate_custom_mounts ()
                rootfs_dest_backing=""
                if [ -n "${opt_link}" ] || [ -n "${opt_union}" ]
                then
-                       for d in /live/rootfs/*
+                       for d in /run/live/rootfs/*
                        do
                                if [ -n "${rootmnt}" ]
                                then