skip_uuid_check="${3}"
# support for fromiso=.../isofrom=....
+ local iso_device=''
if [ -n "$FROMISO" ]
then
fs_type="${FROMISO%%:*}"
fs_type_auto='1'
- ISO_DEVICE="${FROMISO}"
+ iso_device="${FROMISO}"
if echo "${fs_type}" | grep -q '[^[:alnum:]_-]'; then
# Not a valid file system name. Treat as part of the
# path, and, especially, use autodetection.
# Looks like a file system specification, treat it
# like that.
fs_type_auto='0'
- ISO_DEVICE="${ISO_DEVICE#*:}"
+ iso_device="${iso_device#*:}"
fi
- ISO_DEVICE=$(dirname "${ISO_DEVICE}")
- if ! [ -b $ISO_DEVICE ]
+ iso_device=$(dirname "${iso_device}")
+ if ! [ -b "${iso_device}" ]
then
# to support unusual device names like /dev/cciss/c0d0p1
# as well we have to identify the block device name, let's
# do that for up to 15 levels
- i=15
- while [ -n "$ISO_DEVICE" ] && [ "$i" -gt 0 ]
+ i='15'
+ while [ -n "${iso_device}" ] && [ "${i}" -gt '0' ]
do
- ISO_DEVICE=$(dirname ${ISO_DEVICE})
- [ -b "$ISO_DEVICE" ] && break
- i=$(($i -1))
+ iso_device=$(dirname "${iso_device}")
+ if [ -b "${iso_device}" ]; then
+ # Proper device, we're done.
+ break
+ else
+ # Otherwise, it *could* be a proper device
+ # that just hasn't been started yet - think
+ # lvm or RAID.
+ case "${iso_device}" in
+ '/dev/mapper/'*|'/dev/md/'*)
+ # We're looking for paths like
+ # /dev/{mapper,md}/foo here.
+ if printf '%s\n' "${iso_device}" | \
+ grep -Eqs '^/dev/(mapper|md)/[^/]+$'; then
+ # Okay, looks like a device we'll
+ # have to start later on, done here.
+ break
+ fi
+ ;;
+ '/dev/md'*)
+ # This is different from the path above.
+ # Here, we're looking for something like
+ # /dev/md0, /dev/md126 and the like.
+ if printf '%s\n' "${iso_device}" | \
+ grep -Eqs '^/dev/md[[:digit:]]+$'; then
+ # Syntax matches, keep as device
+ # name for later when RAIDs were
+ # started.
+ break
+ fi
+ ;;
+ esac
+ fi
+ i="$(($i - 1))"
done
fi
- if [ "$ISO_DEVICE" = "/" ]
+ if [ "${iso_device}" = '/' ]
then
# not a block device, check if it's an iso file, for
# example an ISO when booting on an ONIE system
echo "Warning: device for bootoption fromiso= ($FROMISO) not found.">>/boot.log
fi
else
- # Need to extract actual ISO file path later on,
- # initialize first.
- iso_name="${FROMISO}"
-
- if [ '0' -ne "${fs_type_auto}" ]; then
- # Try to auto-detect file system if not
- # explicitly provided.
- fs_type=$(get_fstype "${ISO_DEVICE}")
- else
- # Delete file system type override.
- iso_name="${iso_name#*:}"
- fi
- # At this point, the backing device should always be
- # at the very front, so remove that - leaving only the
- # ISO file path.
- iso_name="$(echo "${iso_name}" | sed "s|^${ISO_DEVICE}||")"
- if is_supported_fs ${fs_type}
- then
- mkdir /run/live/fromiso
- mount -t "${fs_type}" -o 'ro' "$ISO_DEVICE" '/run/live/fromiso'
- loopdevname=$(setup_loop "/run/live/fromiso/${iso_name}" "loop" "/sys/block/loop*" "" '')
- devname="${loopdevname}"
- else
- echo "Warning: unable to mount $ISO_DEVICE (type ${fs_type})." >>/boot.log
- fi
+ # Otherwise, it must be a block device, so record that as the devname.
+ devname="${iso_device}"
+ fi
+ else
+ # Usual handling in the non-fromiso case.
+ if [ -z "${devname}" ]
+ then
+ devname=$(sys2dev "${sysdev}")
fi
fi
- if [ -z "${devname}" ]
- then
- devname=$(sys2dev "${sysdev}")
- fi
-
+ # Common code path again: if devname is a directory, we can just go ahead
+ # and bind-mount it to our target mount point.
if [ -d "${devname}" ]
then
mount -o bind "${devname}" $mountpoint || continue
fi
fi
+ # Check if we have to start logical volumes or RAID arrays.
+ # Do this in the common code path so it's only executed once.
IFS=","
+ local device=''
for device in ${devname}
do
case "$device" in
done
unset IFS
+ # Back to fromiso handling, if necessary.
+ # We should now have the necessary lv/RAID devices available, so try to use them.
+ if [ -n "$FROMISO" ]
+ then
+ if [ "${iso_device}" != '/' ]
+ then
+ # Need to extract actual ISO file path later on,
+ # initialize first.
+ iso_name="${FROMISO}"
+
+ if [ '0' -ne "${fs_type_auto}" ]; then
+ # Try to auto-detect file system if not
+ # explicitly provided.
+ fs_type=$(get_fstype "${iso_device}")
+ else
+ # Delete file system type override.
+ iso_name="${iso_name#*:}"
+ fi
+ # At this point, the backing device should always be
+ # at the very front, so remove that - leaving only the
+ # ISO file path.
+ iso_name="$(echo "${iso_name}" | sed "s|^${iso_device}||")"
+ if is_supported_fs ${fs_type}
+ then
+ mkdir /run/live/fromiso
+ mount -t "${fs_type}" -o 'ro' "${iso_device}" '/run/live/fromiso'
+ loopdevname=$(setup_loop "/run/live/fromiso/${iso_name}" "loop" "/sys/block/loop*" "" '')
+ devname="${loopdevname}"
+
+ # Reset device variable, we won't need it.
+ device=''
+ else
+ echo "Warning: unable to mount ${iso_device} (type ${fs_type})." >>/boot.log
+ fi
+ fi
+ fi
+
[ -n "$device" ] && devname="$device"
[ -e "$devname" ] || continue
projects / live-boot-grml.git / blobdiff