X-Git-Url: http://git.grml.org/?a=blobdiff_plain;f=scripts%2Flive;h=a8ac67841aa0adc19f54f6c4d86085770eee0dbc;hb=c70525edd757583351b41f6f00d7f94fd892bbfa;hp=57a4d322c9521d979675cd63eccff9b70db8405e;hpb=483ffeeb6a25e33037adb7148dbeb15dd6dfdd57;p=live-boot-grml.git diff --git a/scripts/live b/scripts/live index 57a4d32..a8ac678 100755 --- a/scripts/live +++ b/scripts/live @@ -244,19 +244,33 @@ Arguments () export PERSISTENT ;; - persistent=*) - PERSISTENT="${ARGUMENT#persistent=}" - if [ -z "${PERSISTENT}" ] - then - PERSISTENT="Yes" - fi - export PERSISTENT + persistent-encryption=*) + PERSISTENT_ENCRYPTION="${ARGUMENT#*=}" + export PERSISTENT_ENCRYPTION + ;; + + persistent-media=*) + PERSISTENT_MEDIA="${ARGUMENT#*=}" + export PERSISTENT_MEDIA + ;; + persistent-method=*) + PERSISTENT_METHOD="${ARGUMENT#*=}" + export PERSISTENT_METHOD ;; persistent-path=*) PERSISTENT_PATH="${ARGUMENT#persistent-path=}" export PERSISTENT_PATH ;; + persistent-read-only) + PERSISTENT_READONLY="Yes" + export PERSISTENT_READONLY + ;; + + persistent-storage=*) + PERSISTENT_STORAGE="${ARGUMENT#persistent-storage=}" + export PERSISTENT_STORAGE + ;; persistent-subtext=*) root_persistence="${root_persistence}-${ARGUMENT#persistent-subtext=}" @@ -380,6 +394,39 @@ Arguments () UNIONTYPE="aufs" export UNIONTYPE fi + + if [ -z "${PERSISTENT_ENCRYPTION}" ] + then + PERSISTENT_ENCRYPTION="none" + export PERSISTENT_ENCRYPTION + elif echo ${PERSISTENT_ENCRYPTION} | grep -qw luks + then + if ! modprobe dm-crypt + then + log_warning_msg "Unable to load module dm-crypt" + PERSISTENT_ENCRYPTION=$(echo ${PERSISTENT_ENCRYPTION} | sed -e 's/\= 174) + PATH_ID="/sbin/udevadm test-builtin path_id" + fi + + if "${PATH_ID}" "${sysfs_path}" | egrep -q "ID_PATH=(usb|pci-[^-]*-(ide|sas|scsi|usb|virtio)|platform-sata_mv|platform-orion-ehci|platform-mmc|platform-mxsdhci)" then return 0 elif echo "${sysfs_path}" | grep -q '^/block/vd[a-z]$' @@ -1028,25 +1084,6 @@ do_snap_copy () fi } -find_snap () -{ - # Look for ${snap_label}.* in block devices - snap_label="${1}" - black_listed_devices="${2}" - - if [ "${PERSISTENT}" != "nofiles" ] - then - # search for image files - snapdata=$(find_files "${PERSISTENT_PATH}${snap_label}.squashfs ${PERSISTENT_PATH}${snap_label}.cpio.gz ${PERSISTENT_PATH}${snap_label}.ext2 ${PERSISTENT_PATH}${snap_label}.ext3 ${PERSISTENT_PATH}${snap_label}.ext4 ${PERSISTENT_PATH}${snap_label}.jffs2" "${black_listed_devices}") - fi - - if [ -z "${snapdata}" ] - then - snapdata=$(find_cow_device "${snap_label}" "${black_listed_devices}") - fi - echo "${snapdata}" -} - try_snap () { # copy the contents of previously found snapshot to ${snap_mount} @@ -1157,7 +1194,10 @@ try_snap () return 1 fi - echo "export ${snap_type}SNAP=${snap_relpath}:${snapdev}:${snapfile}" >> snapshot.conf # for resync on reboot/halt + if [ -z ${PERSISTENT_READONLY} ] + then + echo "export ${snap_type}SNAP=${snap_relpath}:${snapdev}:${snapfile}" >> snapshot.conf # for resync on reboot/halt + fi return 0 } @@ -1198,7 +1238,7 @@ setup_unionfs () if [ "${UNIONTYPE}" = "aufs" ] then - roopt="rr" + roopt="rr+wh" noxino_opt="noxino," elif [ "${UNIONTYPE}" = "unionfs-fuse" ] then @@ -1323,6 +1363,7 @@ setup_unionfs () # Looking for "${root_persistence}" device or file if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ] then + if [ -z "${QUICKUSBMODULES}" ] then # Load USB modules @@ -1350,30 +1391,58 @@ setup_unionfs () done fi - # search for label and files (this could be hugely optimized) - cowprobe=$(find_cow_device "${root_persistence}") - if [ -b "${cowprobe}" ] + case "${PERSISTENT_MEDIA}" in + removable) + whitelistdev="$(removable_dev)" + ;; + removable-usb) + whitelistdev="$(removable_usb_dev)" + ;; + *) + whitelistdev="" + ;; + esac + + if echo ${PERSISTENT_METHOD} | grep -qw overlay then - # Blacklist /cow device, to avoid inconsistent setups for overlapping snapshots - # makes sense to have both persistence for /cow and /home mounted, maybe also with - # snapshots to be sure to really store some e.g key config files, - # but not on the same media - blacklistdev="${cowprobe}" - PERSISTENCE_IS_ON="1" - export PERSISTENCE_IS_ON + overlays="${root_persistence} ${home_persistence}" fi - # homecow just mount something on /home, this should be generalized some way - homecow=$(find_cow_device "${home_persistence}" "${blacklistdev}") - if [ -b "${homecow}" ] + + if echo ${PERSISTENT_METHOD} | grep -qw snapshot + then + snapshots="${root_snapshot_label} ${home_snapshot_label}" + fi + + + for media in $(find_persistent_media "${overlays}" "${snapshots}" "${blacklistdev}" "${whitelistdev}") + do + media="$(echo ${media} | tr ":" " ")" + case ${media} in + ${root_persistence}=*) + cowprobe="${media#*=}" + ;; + ${home_persistence}=*) + homecow="${media#*=}" + ;; + ${root_snapshot_label}=*) + root_snapdata="${media#*=}" + ;; + ${home_snapshot_label}=*) + # This second type should be removed when snapshot will get smarter, + # hence when "/etc/live-snapshot*list" will be supported also by + # ext2|ext3|ext4|jffs2 snapshot types. + home_snapdata="${media#*=}" + ;; + *) + ;; + esac + done + + if [ -b "${cowprobe}" ] || [ -b "${homecow}" ] then PERSISTENCE_IS_ON="1" export PERSISTENCE_IS_ON fi - root_snapdata=$(find_snap "${root_snapshot_label}" "${blacklistdev}") - # This second type should be removed when snapshot will get smarter, - # hence when "/etc/live-snapshot*list" will be supported also by - # ext2|ext3|ext4|jffs2 snapshot types. - home_snapdata=$(find_snap "${home_snapshot_label}" "${blacklistdev}") if [ -b "${cowprobe}" ] then @@ -1386,7 +1455,6 @@ setup_unionfs () fsck -y ${cowdevice} fi else - log_warning_msg "Unable to find the persistent medium" cowdevice="tmpfs" cow_fstype="tmpfs" cow_mountopt="rw,noatime,mode=755" @@ -1476,8 +1544,8 @@ setup_unionfs () unionmountopts="${unionmountopts} ${unionrw}=RW:${unionro}=RO" ( sysctl -w fs.file-max=391524 ; ulimit -HSn 16384 unionfs-fuse ${unionmountopts} "${unionmountpoint}" ) && \ - ( mkdir -p /run/initramfs - pidof unionfs-fuse >> /run/initramfs/sendsigs.omit || true ) + ( mkdir -p /run/sendsigs.omit.d + pidof unionfs-fuse >> /run/sendsigs.omit.d/unionfs-fuse || true ) ;; unionmount) @@ -1510,7 +1578,17 @@ setup_unionfs () if [ -b "${homecow}" ] then - mount -t $(get_fstype "${homecow}") -o rw,noatime "${homecow}" "${rootmnt}/home" + if [ -z "${PERSISTENT_READONLY}" ] + then + mount -t $(get_fstype "${homecow}") -o rw,noatime "${homecow}" "${rootmnt}/home" + else + homerw="/cow/home" + homero="/$(basename ${homecow})-backing" + homemountpoint="${rootmnt}/home" + mkdir -p ${homerw} ${homero} ${homemountpoint} + mount -t $(get_fstype "${homecow}") -o ro "${homecow}" "${homero}" + mount -t "${UNIONTYPE}" -o "noatime,${noxino_opt}dirs=${homerw}=rw:${homero}=${roopt}" "${UNIONTYPE}" "${homemountpoint}" + fi export HOMEMOUNTED=1 # used to proper calculate free space in do_snap_copy() else log_warning_msg "Unable to find the persistent home medium" @@ -1590,7 +1668,7 @@ check_dev () loopdevname=$(setup_loop "/isofrom/${ISO_NAME}" "loop" "/sys/block/loop*" "" '') devname="${loopdevname}" else - echo "Warning: unable to mount $ISO_DEVICE." >>/live.log + echo "Warning: unable to mount $ISO_DEVICE." >>/live-boot.log fi fi fi @@ -1612,6 +1690,35 @@ check_dev () umount $mountpoint fi fi + + IFS="," + for device in ${devname} + do + case "$device" in + *mapper*) + # Adding lvm support + if [ -x /scripts/local-top/lvm2 ] + then + ROOT="$device" resume="" /scripts/local-top/lvm2 + fi + ;; + + /dev/md*) + # Adding raid support + if [ -x /scripts/local-top/mdadm ] + then + cp /conf/conf.d/md /conf/conf.d/md.orig + echo "MD_DEVS=$device " >> /conf/conf.d/md + /scripts/local-top/mdadm + mv /conf/conf.d/md.orig /conf/conf.d/md + fi + ;; + esac + done + unset IFS + + [ -n "$device" ] && devname="$device" + [ -e "$devname" ] || continue if [ -n "${LIVE_MEDIA_OFFSET}" ] @@ -1635,7 +1742,7 @@ check_dev () echo ${mountpoint} return 0 else - umount ${mountpoint} + umount ${mountpoint} 2>/dev/null fi fi @@ -1663,38 +1770,29 @@ find_livefs () # first look at the one specified in the command line case "${LIVE_MEDIA}" in removable-usb) - for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -vE "/(loop|ram|dm-|fd)") + for sysblock in $(removable_usb_dev "sys") do - if [ "$(cat ${sysblock}/removable)" = "1" ] - then - if readlink ${sysblock} | grep -q usb + for dev in $(subdevices "${sysblock}") + do + if check_dev "${dev}" then - for dev in $(subdevices "${sysblock}") - do - if check_dev "${dev}" - then - return 0 - fi - done + return 0 fi - fi + done done return 1 ;; removable) - for sysblock in $(echo /sys/block/* | tr ' ' '\n' | grep -vE "/(loop|ram|dm-|fd)") + for sysblock in $(removable_dev "sys") do - if [ "$(cat ${sysblock}/removable)" = "1" ] - then - for dev in $(subdevices "${sysblock}") - do - if check_dev "${dev}" - then - return 0 - fi - done - fi + for dev in $(subdevices "${sysblock}") + do + if check_dev "${dev}" + then + return 0 + fi + done done return 1 ;; @@ -1712,16 +1810,7 @@ find_livefs () # or do the scan of block devices # prefer removable devices over non-removable devices, so scan them first - for sysblock in $(echo /sys/block/* | tr ' ' '\n' | egrep -v "/(loop|ram|dm-|fd)") - do - if [ "$(cat ${sysblock}/removable)" = "1" ] - then - removable_devices_to_scan="$removable_devices_to_scan $sysblock" - else - nonremovable_devices_to_scan="$nonremovable_devices_to_scan $sysblock" - fi - done - devices_to_scan="$removable_devices_to_scan $nonremovable_devices_to_scan" + devices_to_scan="$(removable_dev 'sys') $(non_removable_dev 'sys')" for sysblock in $devices_to_scan do