diff options
Diffstat (limited to 'etc/setup.d/10mount')
| -rwxr-xr-x | etc/setup.d/10mount | 266 |
1 files changed, 133 insertions, 133 deletions
diff --git a/etc/setup.d/10mount b/etc/setup.d/10mount index 3294b0a3..34666bf3 100755 --- a/etc/setup.d/10mount +++ b/etc/setup.d/10mount @@ -33,13 +33,13 @@ do_mount() info "Mounting $2 on $3" if [ -h "$3" ]; then - fatal "$3 is a symbolic link, not usable as a mountpoint" + fatal "$3 is a symbolic link, not usable as a mountpoint" fi if [ ! -d "$3" ]; then - mkdir -p "$3" + mkdir -p "$3" fi if [ ! -d "$3" ]; then - fatal "$3 does not exist, and could not be created" + fatal "$3 does not exist, and could not be created" fi info "$MOUNT_VERBOSE $1 $2 $3" @@ -51,43 +51,43 @@ do_mount() do_umount_all() { if [ -d "$1" ]; then - # Note that flock is used here to prevent races reading - # /proc/mounts, which on current (Linux 2.6.32) kernels is - # racy. If other processes are mounting or unmounting - # filesystems as we read it, we can miss mount entries due to - # the file changing as we read it. This needs fixing in the - # kernel, but an exclusive lock surrounding the - # schroot-listmounts invocation is a partial fix. This - # prevents racing when multiple schroot processes are running. - # Note that this does not prevent the problem when programs - # other than schroot mount and unmount filesystems (since they - # don't create the lock). - if [ -e /var/lock/schroot ]; then - if [ ! -d /var/lock/schroot ]; then - error "/var/lock/schroot is not a directory" - exit 1 - fi - else - mkdir -m 0700 /var/lock/schroot - fi - - if [ "$(stat -c "%u %g %a" /var/lock/schroot)" != "0 0 700" ]; then - error "/var/lock/schroot is not owned by root:root, or lacks 0700 permissions" - exit 1 - fi - - ( flock 9 - mounts="$("$LIBEXEC_DIR/schroot-listmounts" -m "$1")" - if [ "x$mounts" != 'x' ]; then - echo "$mounts" | - while read mountloc; do + # Note that flock is used here to prevent races reading + # /proc/mounts, which on current (Linux 2.6.32) kernels is + # racy. If other processes are mounting or unmounting + # filesystems as we read it, we can miss mount entries due to + # the file changing as we read it. This needs fixing in the + # kernel, but an exclusive lock surrounding the + # schroot-listmounts invocation is a partial fix. This + # prevents racing when multiple schroot processes are running. + # Note that this does not prevent the problem when programs + # other than schroot mount and unmount filesystems (since they + # don't create the lock). + if [ -e /var/lock/schroot ]; then + if [ ! -d /var/lock/schroot ]; then + error "/var/lock/schroot is not a directory" + exit 1 + fi + else + mkdir -m 0700 /var/lock/schroot + fi + + if [ "$(stat -c "%u %g %a" /var/lock/schroot)" != "0 0 700" ]; then + error "/var/lock/schroot is not owned by root:root, or lacks 0700 permissions" + exit 1 + fi + + ( flock 9 + mounts="$("$LIBEXEC_DIR/schroot-listmounts" -m "$1")" + if [ "x$mounts" != 'x' ]; then + echo "$mounts" | + while read mountloc; do info "Unmounting $mountloc" - umount "$mountloc" || exit 1 - done || exit 1 - fi - ) 9>"/var/lock/schroot/umount" + umount "$mountloc" || exit 1 + done || exit 1 + fi + ) 9>"/var/lock/schroot/umount" else - warn "Mount location $1 no longer exists; skipping unmount" + warn "Mount location $1 no longer exists; skipping unmount" fi } @@ -97,17 +97,17 @@ do_mount_fs_union() { # Prepare mount options (branch config) for union type if [ -z "$CHROOT_UNION_MOUNT_OPTIONS" ]; then - case $CHROOT_UNION_TYPE in - unionfs) - CHROOT_UNION_MOUNT_OPTIONS="dirs=${CHROOT_UNION_OVERLAY_DIRECTORY}=rw,${CHROOT_UNION_UNDERLAY_DIRECTORY}=ro" - ;; - aufs) - CHROOT_UNION_MOUNT_OPTIONS="br:${CHROOT_UNION_OVERLAY_DIRECTORY}:${CHROOT_UNION_UNDERLAY_DIRECTORY}=ro" - ;; - overlayfs) + case $CHROOT_UNION_TYPE in + unionfs) + CHROOT_UNION_MOUNT_OPTIONS="dirs=${CHROOT_UNION_OVERLAY_DIRECTORY}=rw,${CHROOT_UNION_UNDERLAY_DIRECTORY}=ro" + ;; + aufs) + CHROOT_UNION_MOUNT_OPTIONS="br:${CHROOT_UNION_OVERLAY_DIRECTORY}:${CHROOT_UNION_UNDERLAY_DIRECTORY}=ro" + ;; + overlayfs) CHROOT_UNION_MOUNT_OPTIONS="lowerdir=${CHROOT_UNION_UNDERLAY_DIRECTORY},upperdir=${CHROOT_UNION_OVERLAY_DIRECTORY}" ;; - esac + esac fi info "Using '$CHROOT_UNION_TYPE' for filesystem union" @@ -129,98 +129,98 @@ if [ "$CHROOT_TYPE" = "directory" ] \ || [ "$CHROOT_TYPE" = "btrfs-snapshot" ]; then if [ "${CHROOT_UNION_TYPE:-none}" != "none" ]; then - CREATE_UNION="yes" + CREATE_UNION="yes" else - CREATE_UNION="no" + CREATE_UNION="no" fi if [ $STAGE = "setup-start" ] || [ $STAGE = "setup-recover" ]; then - case "$HOST_OS" in - freebsd* | k*bsd*-gnu) : - BINDOPT="-t nullfs" - ;; - *): - BINDOPT="--bind" - ;; - esac - - if [ "$CHROOT_TYPE" = "directory" ]; then - CHROOT_MOUNT_OPTIONS="$BINDOPT $CHROOT_MOUNT_OPTIONS" - CHROOT_MOUNT_DEVICE="$CHROOT_DIRECTORY" - if [ ! -d "$CHROOT_DIRECTORY" ]; then - fatal "Directory '$CHROOT_DIRECTORY' does not exist" - fi - elif [ "$CHROOT_TYPE" = "file" ]; then - CHROOT_MOUNT_OPTIONS="$BINDOPT $CHROOT_MOUNT_OPTIONS" - CHROOT_MOUNT_DEVICE="${CHROOT_FILE_UNPACK_DIR}/${SESSION_ID}" - elif [ "$CHROOT_TYPE" = "block-device" ]; then - if [ ! "$DEVTYPE" "$CHROOT_DEVICE" ]; then - fatal "Device '$CHROOT_DEVICE' does not exist" - fi - elif [ "$CHROOT_TYPE" = "btrfs-snapshot" ]; then - CHROOT_MOUNT_OPTIONS="$BINDOPT $CHROOT_MOUNT_OPTIONS" - CHROOT_MOUNT_DEVICE="$CHROOT_BTRFS_SNAPSHOT_NAME" - elif [ "$CHROOT_TYPE" = "loopback" ]; then - if [ ! -f "$CHROOT_FILE" ]; then - fatal "File '$CHROOT_FILE' does not exist" - fi - - case "$HOST_OS" in - freebsd* | k*bsd*-gnu): - LOOP_DEVICE="/dev/$(/sbin/mdconfig -a -t vnode -f "$CHROOT_FILE")" - CHROOT_MOUNT_DEVICE="$LOOP_DEVICE" - ;; - *): - LOOP_DEVICE="$(/sbin/losetup -j "$CHROOT_FILE" | sed -e 's/:.*$//')" - if [ -z "$LOOP_DEVICE" ]; then - CHROOT_MOUNT_DEVICE="$CHROOT_FILE" - CHROOT_MOUNT_OPTIONS="-o loop $CHROOT_MOUNT_OPTIONS" - else - CHROOT_MOUNT_DEVICE="$LOOP_DEVICE" - fi - ;; - esac - fi + case "$HOST_OS" in + freebsd* | k*bsd*-gnu) : + BINDOPT="-t nullfs" + ;; + *): + BINDOPT="--bind" + ;; + esac + + if [ "$CHROOT_TYPE" = "directory" ]; then + CHROOT_MOUNT_OPTIONS="$BINDOPT $CHROOT_MOUNT_OPTIONS" + CHROOT_MOUNT_DEVICE="$CHROOT_DIRECTORY" + if [ ! -d "$CHROOT_DIRECTORY" ]; then + fatal "Directory '$CHROOT_DIRECTORY' does not exist" + fi + elif [ "$CHROOT_TYPE" = "file" ]; then + CHROOT_MOUNT_OPTIONS="$BINDOPT $CHROOT_MOUNT_OPTIONS" + CHROOT_MOUNT_DEVICE="${CHROOT_FILE_UNPACK_DIR}/${SESSION_ID}" + elif [ "$CHROOT_TYPE" = "block-device" ]; then + if [ ! "$DEVTYPE" "$CHROOT_DEVICE" ]; then + fatal "Device '$CHROOT_DEVICE' does not exist" + fi + elif [ "$CHROOT_TYPE" = "btrfs-snapshot" ]; then + CHROOT_MOUNT_OPTIONS="$BINDOPT $CHROOT_MOUNT_OPTIONS" + CHROOT_MOUNT_DEVICE="$CHROOT_BTRFS_SNAPSHOT_NAME" + elif [ "$CHROOT_TYPE" = "loopback" ]; then + if [ ! -f "$CHROOT_FILE" ]; then + fatal "File '$CHROOT_FILE' does not exist" + fi + + case "$HOST_OS" in + freebsd* | k*bsd*-gnu): + LOOP_DEVICE="/dev/$(/sbin/mdconfig -a -t vnode -f "$CHROOT_FILE")" + CHROOT_MOUNT_DEVICE="$LOOP_DEVICE" + ;; + *): + LOOP_DEVICE="$(/sbin/losetup -j "$CHROOT_FILE" | sed -e 's/:.*$//')" + if [ -z "$LOOP_DEVICE" ]; then + CHROOT_MOUNT_DEVICE="$CHROOT_FILE" + CHROOT_MOUNT_OPTIONS="-o loop $CHROOT_MOUNT_OPTIONS" + else + CHROOT_MOUNT_DEVICE="$LOOP_DEVICE" + fi + ;; + esac + fi if [ ! -d "$CHROOT_MOUNT_LOCATION" ]; then - mkdir -p "$CHROOT_MOUNT_LOCATION" + mkdir -p "$CHROOT_MOUNT_LOCATION" + fi + if [ ! -d "$CHROOT_MOUNT_LOCATION" ]; then + fatal "$CHROOT_MOUNT_LOCATION does not exist, and could not be created" + fi + + # If recovering, we want to remount all filesystems to ensure + # a sane state. + if [ $STAGE = "setup-recover" ]; then + if [ "$CREATE_UNION" = "yes" ]; then + do_umount_all "$CHROOT_UNION_UNDERLAY_DIRECTORY" + fi + do_umount_all "$CHROOT_MOUNT_LOCATION" + fi + + if [ "$CREATE_UNION" = "yes" ]; then + do_mount "$CHROOT_MOUNT_OPTIONS" "$CHROOT_MOUNT_DEVICE" "$CHROOT_UNION_UNDERLAY_DIRECTORY" + do_mount_fs_union "$CHROOT_MOUNT_LOCATION" + else + do_mount "$CHROOT_MOUNT_OPTIONS" "$CHROOT_MOUNT_DEVICE" "$CHROOT_MOUNT_LOCATION" fi - if [ ! -d "$CHROOT_MOUNT_LOCATION" ]; then - fatal "$CHROOT_MOUNT_LOCATION does not exist, and could not be created" - fi - - # If recovering, we want to remount all filesystems to ensure - # a sane state. - if [ $STAGE = "setup-recover" ]; then - if [ "$CREATE_UNION" = "yes" ]; then - do_umount_all "$CHROOT_UNION_UNDERLAY_DIRECTORY" - fi - do_umount_all "$CHROOT_MOUNT_LOCATION" - fi - - if [ "$CREATE_UNION" = "yes" ]; then - do_mount "$CHROOT_MOUNT_OPTIONS" "$CHROOT_MOUNT_DEVICE" "$CHROOT_UNION_UNDERLAY_DIRECTORY" - do_mount_fs_union "$CHROOT_MOUNT_LOCATION" - else - do_mount "$CHROOT_MOUNT_OPTIONS" "$CHROOT_MOUNT_DEVICE" "$CHROOT_MOUNT_LOCATION" - fi elif [ $STAGE = "setup-stop" ]; then - do_umount_all "$CHROOT_MOUNT_LOCATION" - if [ "$CREATE_UNION" = "yes" ]; then - do_umount_all "$CHROOT_UNION_UNDERLAY_DIRECTORY" - fi + do_umount_all "$CHROOT_MOUNT_LOCATION" + if [ "$CREATE_UNION" = "yes" ]; then + do_umount_all "$CHROOT_UNION_UNDERLAY_DIRECTORY" + fi - # Purge mount location. - # The contents of file chroots are purged separately, because - # we might want to repack the contents. - if echo "$CHROOT_MOUNT_LOCATION" | grep -q "^$MOUNT_DIR/"; then - if [ -d "$CHROOT_MOUNT_LOCATION" ]; then - rmdir "$CHROOT_MOUNT_LOCATION" - fi - fi + # Purge mount location. + # The contents of file chroots are purged separately, because + # we might want to repack the contents. + if echo "$CHROOT_MOUNT_LOCATION" | grep -q "^$MOUNT_DIR/"; then + if [ -d "$CHROOT_MOUNT_LOCATION" ]; then + rmdir "$CHROOT_MOUNT_LOCATION" + fi + fi fi @@ -230,12 +230,12 @@ fi if [ $STAGE = "setup-start" ] || [ $STAGE = "setup-recover" ]; then if [ -n "$SETUP_FSTAB" ]; then - if [ -f "$SETUP_FSTAB" ]; then - "$LIBEXEC_DIR/schroot-mount" $MOUNT_VERBOSE \ - -f "$SETUP_FSTAB" -m "$CHROOT_PATH" - else - fatal "setup_fstab file '$SETUP_FSTAB' does not exist" - fi + if [ -f "$SETUP_FSTAB" ]; then + "$LIBEXEC_DIR/schroot-mount" $MOUNT_VERBOSE \ + -f "$SETUP_FSTAB" -m "$CHROOT_PATH" + else + fatal "setup_fstab file '$SETUP_FSTAB' does not exist" + fi fi fi |