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 ]
skip_uuid_check="${3}"
# support for fromiso=.../isofrom=....
+ local iso_device=''
if [ -n "$FROMISO" ]
then
- ISO_DEVICE=$(dirname $FROMISO)
- if ! [ -b $ISO_DEVICE ]
+ fs_type="${FROMISO%%:*}"
+ fs_type_auto='1'
+ 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.
+ fs_type=''
+ else
+ # Looks like a file system specification, treat it
+ # like that.
+ fs_type_auto='0'
+ iso_device="${iso_device#*:}"
+ fi
+ iso_device=$(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
if echo "${FROMISO}" | grep -q "\.iso$"
then
- fs_type=$(get_fstype "${FROMISO}")
+ if [ '0' -ne "${fs_type_auto}" ]; then
+ # Autodetect fs type if not overridden.
+ fs_type=$(get_fstype "${FROMISO}")
+ fi
if is_supported_fs ${fs_type}
then
mkdir /run/live/fromiso
- mount -t $fs_type "${FROMISO}" /run/live/fromiso
+ mount -t "${fs_type}" -o 'ro' "${FROMISO}" '/run/live/fromiso'
if [ "$?" != 0 ]
then
- echo "Warning: unable to mount ${FROMISO}." >>/boot.log
+ echo "Warning: unable to mount ${FROMISO} (type ${fs_type})." >>/boot.log
fi
devname="/run/live/fromiso"
fi
echo "Warning: device for bootoption fromiso= ($FROMISO) not found.">>/boot.log
fi
else
- fs_type=$(get_fstype "${ISO_DEVICE}")
- if is_supported_fs ${fs_type}
- then
- mkdir /run/live/fromiso
- mount -t $fs_type "$ISO_DEVICE" /run/live/fromiso
- ISO_NAME="$(echo $FROMISO | sed "s|$ISO_DEVICE||")"
- loopdevname=$(setup_loop "/run/live/fromiso/${ISO_NAME}" "loop" "/sys/block/loop*" "" '')
- devname="${loopdevname}"
- else
- echo "Warning: unable to mount $ISO_DEVICE." >>/boot.log
- fi
+ # Otherwise, it must be a block device, so record that as the devname.
+ devname="${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
/dev/md*)
# Adding raid support
- if [ -x /scripts/local-top/mdadm ]
+ if [ -x /scripts/local-block/mdadm ]
then
- [ -r /conf/conf.d/md ] && cp /conf/conf.d/md /conf/conf.d/md.orig
- echo "MD_DEVS=$device " >> /conf/conf.d/md
- /scripts/local-top/mdadm >>/boot.log
- [ -r /conf/conf.d/md.orig ] && mv /conf/conf.d/md.orig /conf/conf.d/md
+ # Before actually doing anything, make sure that no auto-generated
+ # mdadm.conf is around in the initramfs.
+ # Short explanation of why this is needed:
+ # /usr/share/initramfs-tools/hooks/mdadm is executed as part of
+ # mkinitramfs, which generates an /etc/mdadm/mdadm.conf file if one
+ # doesn't exist yet (which should always be the case in our new
+ # chroot) based on the host system configuration. Eventually, this
+ # is copied into the generated initramfs and then causes issues on
+ # other systems.
+ # It's safe to delete the file within the initramfs. The actual
+ # squashfs root will not be affected by that (and, additionally,
+ # a FAI script makes sure that the mdadm.conf in there gets wiped
+ # of any auto-generated arrays).
+ rm -rf '/etc/mdadm/mdadm.conf'
+
+ # Back in the day, when there was still a local-top mdadm script, we
+ # used to select specific devices to be auto-assembled.
+ # This functionality was dropped in the local-block script, so just
+ # scan and assemble all RAID devices.
+ /scripts/local-block/mdadm >>/boot.log
fi
;;
esac
done
unset IFS
+ # Back to fromiso handling, if necessary.
+ # We should now have the necessary lv/RAID devices available, so try to use them.
+ if [ -n "$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
fi
if is_live_path ${mountpoint} && \
- ([ "${skip_uuid_check}" ] || matches_uuid ${mountpoint})
+ ([ "${skip_uuid_check}" ] || grml_match_bootid ${mountpoint})
then
echo ${mountpoint}
return 0
return 0
fi
done
- elif [ "${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
fstype=$(get_fstype "${dev}")
fi
mount -t "${fstype}" -o "${opts}" "${dev}" "${mountp}" || \
- ( echo "SKIPPING: Cannot mount ${dev} on ${mountp}, fstype=${fstype}, options=${opts}" > boot.log && return 0 )
+ ( echo "SKIPPING: Cannot mount ${dev} on ${mountp}, fstype=${fstype}, options=${opts}" >> boot.log && return 0 )
fi
}
projects / live-boot-grml.git / blobdiff