Hello,
I have a udev rule and a md127 device with the properties as following.
The mdmonitor service is not started (no trace in systemd journal).
However I can manually start the service.
I don't know how to further debug.
Thanks
# udevadm info --query=property --name=/dev/md127
DEVPATH=/devices/virtual/block/md127
DEVNAME=/dev/md127
DEVTYPE=disk
DISKSEQ=6
MAJOR=9
MINOR=127
SUBSYSTEM=block
USEC_INITIALIZED=5129215
ID_IGNORE_DISKSEQ=1
MD_LEVEL=raid1
MD_DEVICES=2
MD_METADATA=1.2
MD_UUID=800ee577:652e6fdc:79f6768e:dea2f7ea
MD_DEVNAME=SysRAID1Array1
MD_NAME=linux2:SysRAID1Array1
ID_FS_UUID=x94VGG-7hfP-rn1c-MR53-q6to-QPZR-73eAdq
ID_FS_UUID_ENC=x94VGG-7hfP-rn1c-MR53-q6to-QPZR-73eAdq
ID_FS_VERSION=LVM2 001
ID_FS_TYPE=LVM2_member
ID_FS_USAGE=raid
SYSTEMD_WANTS=mdmonitor.service
SYSTEMD_READY=0
UDISKS_MD_LEVEL=raid1
UDISKS_MD_DEVICES=2
UDISKS_MD_METADATA=1.2
UDISKS_MD_UUID=800ee577:652e6fdc:79f6768e:dea2f7ea
UDISKS_MD_DEVNAME=SysRAID1Array1
UDISKS_MD_NAME=linux2:SysRAID1Array1
UDISKS_MD_DEVICE_dev_nvme0n1p2_ROLE=0
UDISKS_MD_DEVICE_dev_nvme0n1p2_DEV=/dev/nvme0n1p2
UDISKS_MD_DEVICE_dev_nvme1n1p2_ROLE=1
UDISKS_MD_DEVICE_dev_nvme1n1p2_DEV=/dev/nvme1n1p2
DEVLINKS=/dev/md/SysRAID1Array1
/dev/disk/by-id/md-name-linux2:SysRAID1Array1
/dev/disk/by-id/lvm-pv-uuid-x94VGG-7hfP-rn1c-MR53-q6to-QPZR-73eAdq
/dev/disk/by-id/md-uuid-800ee577:652e6fdc:79f6768e:dea2f7ea
TAGS=:systemd:
CURRENT_TAGS=:systemd:
# cat /usr/lib/udev/rules.d/63-md-raid-arrays.rules
# do not edit this file, it will be overwritten on update
SUBSYSTEM!="block", GOTO="md_end"
# handle md arrays
ACTION!="add|change", GOTO="md_end"
KERNEL!="md*", GOTO="md_end"
# partitions have no md/{array_state,metadata_version}, but should not
# for that reason be ignored.
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", ENV{SYSTEMD_READY}="0", GOTO="md_end"
ATTR{md/array_state}=="clear*|inactive", ENV{SYSTEMD_READY}="0",
GOTO="md_end"
ATTR{md/sync_action}=="reshape", ENV{RESHAPE_ACTIVE}="yes"
LABEL="md_ignore_state"
IMPORT{program}="/usr/bin/mdadm --detail --no-devices --export $devnode"
ENV{DEVTYPE}=="disk", ENV{MD_NAME}=="?*",
SYMLINK+="disk/by-id/md-name-$env{MD_NAME}",
OPTIONS+="string_escape=replace"
ENV{DEVTYPE}=="disk", ENV{MD_UUID}=="?*",
SYMLINK+="disk/by-id/md-uuid-$env{MD_UUID}"
ENV{DEVTYPE}=="disk", ENV{MD_DEVNAME}=="?*", SYMLINK+="md/$env{MD_DEVNAME}"
ENV{DEVTYPE}=="partition", ENV{MD_NAME}=="?*",
SYMLINK+="disk/by-id/md-name-$env{MD_NAME}-part%n",
OPTIONS+="string_escape=replace"
ENV{DEVTYPE}=="partition", ENV{MD_UUID}=="?*",
SYMLINK+="disk/by-id/md-uuid-$env{MD_UUID}-part%n"
ENV{DEVTYPE}=="partition", ENV{MD_DEVNAME}=="*[^0-9]",
SYMLINK+="md/$env{MD_DEVNAME}%n"
ENV{DEVTYPE}=="partition", ENV{MD_DEVNAME}=="*[0-9]",
SYMLINK+="md/$env{MD_DEVNAME}p%n"
IMPORT{builtin}="blkid"
OPTIONS+="link_priority=100"
OPTIONS+="watch"
ENV{ID_FS_USAGE}=="filesystem|other|crypto", ENV{ID_FS_UUID_ENC}=="?*",
SYMLINK+="disk/by-uuid/$env{ID_FS_UUID_ENC}"
ENV{ID_FS_USAGE}=="filesystem|other", ENV{ID_PART_ENTRY_UUID}=="?*",
SYMLINK+="disk/by-partuuid/$env{ID_PART_ENTRY_UUID}"
ENV{ID_FS_USAGE}=="filesystem|other", ENV{ID_FS_LABEL_ENC}=="?*",
SYMLINK+="disk/by-label/$env{ID_FS_LABEL_ENC}"
ENV{MD_LEVEL}=="raid[1-9]*", ENV{SYSTEMD_WANTS}+="mdmonitor.service"
# Tell systemd to run mdmon for our container, if we need it.
ENV{MD_LEVEL}=="raid[1-9]*", ENV{MD_CONTAINER}=="?*",
PROGRAM="/usr/bin/readlink $env{MD_CONTAINER}", ENV{MD_MON_THIS}="%c"
ENV{MD_MON_THIS}=="?*", PROGRAM="/usr/bin/basename $env{MD_MON_THIS}",
ENV{SYSTEMD_WANTS}+="mdmon@%c.service"
ENV{RESHAPE_ACTIVE}=="yes", PROGRAM="/usr/bin/basename
$env{MD_MON_THIS}", ENV{SYSTEMD_WANTS}+="mdadm-grow-continue@%c.service"
LABEL="md_end"
