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b874d4b5be
The 69-dm-lvm-metad.rules set some udev env. variables that makes it possible to detect the right time to activate LVM on MD. The MD is very similar to DM during activation - it's usable only after proper device activation - the CHANGE event. We need to make a difference between a CHANGE event that comes from this activation and CHANGE event that is the outcome of the WATCH udev rule (otherwise we'd end up with LVM activation done on each CHANGE event - which is wrong). So we need the udev databse to be persistent during pivot to root fs even for MD devices.
25 lines
843 B
Plaintext
25 lines
843 B
Plaintext
SUBSYSTEM!="block", GOTO="md_end"
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ACTION!="add|change", GOTO="md_end"
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# Also don't process disks that are slated to be a multipath device
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ENV{DM_MULTIPATH_DEVICE_PATH}=="?*", GOTO="md_end"
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KERNEL!="md[0-9]*|md_d[0-9]*|md/*", KERNEL!="md*", GOTO="md_end"
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# partitions have no md/{array_state,metadata_version}
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ENV{DEVTYPE}=="partition", GOTO="md_ignore_state"
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# container devices have a metadata version of e.g. 'external:ddf' and
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# never leave state 'inactive'
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ATTR{md/metadata_version}=="external:[A-Za-z]*", ATTR{md/array_state}=="inactive", GOTO="md_ignore_state"
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TEST!="md/array_state", GOTO="md_end"
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ATTR{md/array_state}=="|clear|inactive", GOTO="md_end"
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LABEL="md_ignore_state"
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IMPORT{program}="/sbin/mdadm --detail --export $tempnode"
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IMPORT BLKID
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OPTIONS+="link_priority=100"
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OPTIONS+="watch"
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OPTIONS+="db_persist"
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LABEL="md_end"
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