From: Gaudenz Steinlin Date: Tue, 12 Feb 2013 07:14:17 +0000 (+0100) Subject: Fixing mounting of rootfs, cow and medium filesystems (Closes: #696495). X-Git-Tag: debian/4.0_a5-1~3 X-Git-Url: http://git.grml.org/?a=commitdiff_plain;h=9555545410914f4f6cf1b1c00bb4a5b5dfe2b5cc;hp=cc092da4c7a07d9370c5d0c7129fb02aa910b736;p=live-boot-grml.git Fixing mounting of rootfs, cow and medium filesystems (Closes: #696495). --- diff --git a/scripts/boot/9990-main.sh b/scripts/boot/9990-main.sh index c696781..fd10e5d 100755 --- a/scripts/boot/9990-main.sh +++ b/scripts/boot/9990-main.sh @@ -135,6 +135,19 @@ Main () mount_images_in_directory "${livefs_root}" "${rootmnt}" "${mac}" fi + # At this point /root should contain the final root filesystem. + # Move all mountpoints below /live into /root/lib/live/mount. + # This has to be done after mounting the root filesystem to / + # otherwise these mount points won't be accessible from the running system. + for _MOUNT in $(cat /proc/mounts | cut -f 2 -d " " | grep -e "^/live/") + do + local newmount + newmount="${rootmnt}/lib/live/mount/${_MOUNT#/live/}" + mkdir -p "${newmount}" + mount -o move "${_MOUNT}" "${newmount}" > /dev/null 2>&1 || \ + mount -o bind "${_MOUNT}" "${newmount}" > /dev/null || \ + log_warning_msg "W: failed to move or bindmount ${_MOUNT} to ${newmount}" + done if [ -n "${ROOT_PID}" ] then @@ -151,9 +164,6 @@ Main () ;; esac - # Move to the new root filesystem so that programs there can get at it. - mkdir -p /root/lib/live/mount/medium - mount --move /live/medium /root/lib/live/mount/medium # aufs2 in kernel versions around 2.6.33 has a regression: # directories can't be accessed when read for the first the time, @@ -161,13 +171,6 @@ Main () # when booting FAI, this simple workaround solves it ls /root/* >/dev/null 2>&1 - # Move findiso directory to the new root filesystem so that programs there can get at it. - if [ -d /live/findiso ] - then - mkdir -p /root/lib/live/mount/findiso - mount -n --move /live/findiso /root/lib/live/mount/findiso - fi - # if we do not unmount the ISO we can't run "fsck /dev/ice" later on # because the mountpoint is left behind in /proc/mounts, so let's get # rid of it when running from RAM diff --git a/scripts/boot/9990-misc-helpers.sh b/scripts/boot/9990-misc-helpers.sh index a6ed2d0..18befee 100755 --- a/scripts/boot/9990-misc-helpers.sh +++ b/scripts/boot/9990-misc-helpers.sh @@ -733,7 +733,7 @@ mount_persistence_media () device=${1} probe=${2} - backing="${rootmnt}/lib/live/mount/persistence/$(basename ${device})" + backing="/live/persistence/$(basename ${device})" mkdir -p "${backing}" old_backing="$(where_is_mounted ${device})" @@ -957,7 +957,7 @@ find_persistence_media () white_listed_devices="${2}" ret="" - black_listed_devices="$(what_is_mounted_on ${rootmnt}/lib/live/medium)" + black_listed_devices="$(what_is_mounted_on /live/medium)" for dev in $(storage_devices "${black_listed_devices}" "${white_listed_devices}") do @@ -1260,7 +1260,7 @@ do_union () get_custom_mounts () { - # Side-effect: leaves $devices with persistence.conf mounted in ${rootmnt}/lib/live/mount/persistence + # Side-effect: leaves $devices with persistence.conf mounted in /live/persistence # Side-effect: prints info to file $custom_mounts local custom_mounts devices bindings links @@ -1299,7 +1299,7 @@ get_custom_mounts () if [ -n "${DEBUG}" ] && [ -e "${include_list}" ] then - cp ${include_list} ${rootmnt}/lib/live/mount/persistence/${persistence_list}.${device_name} + cp ${include_list} /live/persistence/${persistence_list}.${device_name} fi while read dir options # < ${include_list} @@ -1484,7 +1484,7 @@ activate_custom_mounts () rootfs_dest_backing="" if [ -n "${opt_link}"] then - for d in ${rootmnt}/lib/live/mount/rootfs/* + for d in /live/rootfs/* do if [ -n "${rootmnt}" ] then @@ -1514,7 +1514,7 @@ activate_custom_mounts () # has its own directory and isn't nested with some # other custom mount (if so that mount's files would # be linked, causing breakage. - cow_dir="${rootmnt}/lib/live/mount/overlay/lib/live/mount/persistence/$(basename ${links_source})" + cow_dir="/live/overlay/lib/live/mount/persistence/$(basename ${links_source})" mkdir -p ${cow_dir} chown_ref "${source}" "${cow_dir}" chmod_ref "${source}" "${cow_dir}" @@ -1531,7 +1531,7 @@ activate_custom_mounts () # bind-mount and union mount are handled the same # in read-only mode, but note that rootfs_dest_backing # is non-empty (and necessary) only for unions - cow_dir="${rootmnt}/lib/live/mount/overlay/${dest}" + cow_dir="/live/overlay/${dest}" if [ -e "${cow_dir}" ] && [ -z "${opt_link}" ] then # If an earlier custom mount has files here diff --git a/scripts/boot/9990-overlay.sh b/scripts/boot/9990-overlay.sh index b4f5082..71e9a74 100755 --- a/scripts/boot/9990-overlay.sh +++ b/scripts/boot/9990-overlay.sh @@ -371,29 +371,6 @@ setup_unionfs () esac done - # move all /live mountpoints that the custom persistence - # system depends on into /lib/live on the root filesystem - for _DIRECTORY in rootfs - do - if [ -d "/live/${_DIRECTORY}" ] - then - mkdir -p "${rootmnt}/lib/live/mount/${_DIRECTORY}" - - for _MOUNT in $(ls /live/${_DIRECTORY}) - do - mkdir -p "${rootmnt}/lib/live/mount/${_DIRECTORY}/${_MOUNT}" - mount -o move "/live/${_DIRECTORY}/${_MOUNT}" "${rootmnt}/lib/live/mount/${_DIRECTORY}/${_MOUNT}" > /dev/null 2>&1 || \ - mount -o bind "/live/${_DIRECTORY}/${_MOUNT}" "${rootmnt}/lib/live/mount/${_DIRECTORY}/${_MOUNT}" || \ - log_warning_msg "W: failed to mount /live/${_DIRECTORY}/${_MOUNT} to ${rootmnt}/lib/live/mount/${_DIRECTORY}/${_MOUNT}" - done - fi - done - - mkdir -p "${rootmnt}/lib/live/mount/overlay" - mount -o move /live/overlay "${rootmnt}/lib/live/mount/overlay" > /dev/null 2>&1 || \ - mount -o bind /live/overlay "${rootmnt}/lib/live/mount/overlay" || \ - log_warning_msg "W: failed to mount /live/overlay to ${rootmnt}/lib/live/mount/overlay" - # Adding custom persistence if [ -n "${PERSISTENCE}" ] && [ -z "${NOPERSISTENCE}" ] then