# device mapper links hook into "online" event, when the dm table # is available, while some table types must be ignored KERNEL=="dm-*", ACTION=="add|online", GOTO="device_mapper_do" GOTO="device_mapper_end" LABEL="device_mapper_do" PROGRAM!="/sbin/dmsetup status -j %M -m %m", GOTO="device_mapper_end" RESULT=="|*snapshot*|*error*", GOTO="device_mapper_end" IMPORT{program}="/sbin/vol_id --export $tempnode" ENV{ID_FS_USAGE}=="filesystem|other", ENV{ID_FS_UUID}=="?*", SYMLINK+="disk/by-uuid/$env{ID_FS_UUID}" ENV{ID_FS_USAGE}=="filesystem|other", ENV{ID_FS_LABEL_SAFE}=="?*", SYMLINK+="disk/by-label/$env{ID_FS_LABEL_SAFE}" LABEL="device_mapper_end"