/usr/lib/dracut/modules.d/90mdraid/ Current File: //usr/lib/dracut/modules.d/90mdraid/59-persistent-storage-md.rules

SUBSYSTEM!="block", GOTO="md_end"
ACTION!="add|change", GOTO="md_end"
# Also don't process disks that are slated to be a multipath device
ENV{DM_MULTIPATH_DEVICE_PATH}=="1", GOTO="md_end"

KERNEL!="md[0-9]*|md_d[0-9]*|md/*", KERNEL!="md*", GOTO="md_end"

# partitions have no md/{array_state,metadata_version}
ENV{DEVTYPE}=="partition", GOTO="md_ignore_state"

# container devices have a metadata version of e.g. 'external:ddf' and
# never leave state 'inactive'
ATTR{md/metadata_version}=="external:[A-Za-z]*", ATTR{md/array_state}=="inactive", GOTO="md_ignore_state"
TEST!="md/array_state", GOTO="md_end"
ATTR{md/array_state}=="|clear|inactive", GOTO="md_end"

LABEL="md_ignore_state"

IMPORT{program}="/sbin/mdadm --detail --export $tempnode"
IMPORT BLKID
OPTIONS+="link_priority=100"
OPTIONS+="watch"
OPTIONS+="db_persist"
LABEL="md_end"