diff options
Diffstat (limited to 'dracut-functions.sh')
| -rwxr-xr-x | dracut-functions.sh | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/dracut-functions.sh b/dracut-functions.sh index 4535871..f9e5d3b 100755 --- a/dracut-functions.sh +++ b/dracut-functions.sh @@ -653,6 +653,16 @@ get_blockdev_drv_through_sys() { echo "$_block_mods" } +# get_lvm_dm_dev <maj:min> +# If $1 is an LVM device-mapper device, return the path to its dm directory +get_lvm_dm_dev() { + local _majmin _dm + _majmin="$1" + _dm=/sys/dev/block/$_majmin/dm + [[ ! -f $_dm/uuid || $(< "$_dm"/uuid) != LVM-* ]] && return 1 + printf "%s" "$_dm" +} + # ugly workaround for the lvm design # There is no volume group device, # so, there are no slave devices for volume groups. @@ -660,10 +670,10 @@ get_blockdev_drv_through_sys() { # but you cannot create the logical volume without the volume group. # And the volume group might be bigger than the devices the LV needs. check_vol_slaves() { - local _vg _pv _dm _majmin + local _vg _pv _majmin _dm _majmin="$2" - _dm=/sys/dev/block/$_majmin/dm - [[ -f $_dm/uuid && $(< "$_dm"/uuid) =~ LVM-* ]] || return 1 + _dm=$(get_lvm_dm_dev "$_majmin") + [[ -z $_dm ]] && return 1 # not an LVM device-mapper device _vg=$(dmsetup splitname --noheadings -o vg_name "$(< "$_dm/name")") # strip space _vg="${_vg//[[:space:]]/}" @@ -676,10 +686,10 @@ check_vol_slaves() { } check_vol_slaves_all() { - local _vg _pv _majmin + local _vg _pv _majmin _dm _majmin="$2" - _dm="/sys/dev/block/$_majmin/dm" - [[ -f $_dm/uuid && $(< "$_dm"/uuid) =~ LVM-* ]] || return 1 + _dm=$(get_lvm_dm_dev "$_majmin") + [[ -z $_dm ]] && return 1 # not an LVM device-mapper device _vg=$(dmsetup splitname --noheadings -o vg_name "$(< "$_dm/name")") # strip space _vg="${_vg//[[:space:]]/}" @@ -777,10 +787,12 @@ get_ucode_file() { # Not every device in /dev/mapper should be examined. # If it is an LVM device, touch only devices which have /dev/VG/LV symlink. lvm_internal_dev() { - local dev_dm_dir=/sys/dev/block/$1/dm - [[ ! -f $dev_dm_dir/uuid || $(< "$dev_dm_dir"/uuid) != LVM-* ]] && return 1 # Not an LVM device + local _majmin _dm + _majmin="$1" + _dm=$(get_lvm_dm_dev "$_majmin") + [[ -z $_dm ]] && return 1 # not an LVM device-mapper device local DM_VG_NAME DM_LV_NAME DM_LV_LAYER - eval "$(dmsetup splitname --nameprefixes --noheadings --rows "$(< "$dev_dm_dir"/name)" 2> /dev/null)" + eval "$(dmsetup splitname --nameprefixes --noheadings --rows "$(< "$_dm/name")" 2> /dev/null)" [[ ${DM_VG_NAME} ]] && [[ ${DM_LV_NAME} ]] || return 0 # Better skip this! [[ ${DM_LV_LAYER} ]] || [[ ! -L /dev/${DM_VG_NAME}/${DM_LV_NAME} ]] } |