systemd/rules.d/60-block.rules

# do not edit this file, it will be overwritten on update

# enable in-kernel media-presence polling
ACTION=="add", SUBSYSTEM=="module", KERNEL=="block", ATTR{parameters/events_dfl_poll_msecs}=="0", \
  ATTR{parameters/events_dfl_poll_msecs}="2000"

# forward scsi device event to corresponding block device
ACTION=="change", SUBSYSTEM=="scsi", ENV{DEVTYPE}=="scsi_device", TEST=="block", ATTR{block/*/uevent}="change"

# watch metadata changes, caused by tools closing the device node which was opened for writing
ACTION!="remove", SUBSYSTEM=="block", \
  KERNEL=="loop*|mmcblk*[0-9]|msblk*[0-9]|mspblk*[0-9]|nvme*|sd*|vd*|xvd*|bcache*|cciss*|dasd*|ubd*|ubi*|scm*|pmem*|nbd*|zd*", \
  OPTIONS+="watch"
rules: move block device rules to its own rules file 2015-03-12 18:09:46 +03:00			`# do not edit this file, it will be overwritten on update`

			`# enable in-kernel media-presence polling`
			`ACTION=="add", SUBSYSTEM=="module", KERNEL=="block", ATTR{parameters/events_dfl_poll_msecs}=="0", \`
			`ATTR{parameters/events_dfl_poll_msecs}="2000"`

			`# forward scsi device event to corresponding block device`
			`ACTION=="change", SUBSYSTEM=="scsi", ENV{DEVTYPE}=="scsi_device", TEST=="block", ATTR{block/*/uevent}="change"`

			`# watch metadata changes, caused by tools closing the device node which was opened for writing`
udev: assume all devices which have persistent links also need to be watched We had two similar lists, but one was accepting many more device types. I assume that this is by mistake, simply because the lack of device links is easier to notice than the lack of synthesized event after the device is written to. This uses the same list in both places, effectively adding "watch" attribute to /dev/nbd, /dev/zd, etc. 2019-08-16 14:20:04 +03:00			`ACTION!="remove", SUBSYSTEM=="block", \`
udev: allow persistent storage rules work for ubi devices Back in dbbf424c8b77c1649e822c20c0b1fee1d2cfd93d, we merged a rule to add persistent storage for /dev/ubi, but this rule could have never worked because of the top-level exclude. Also set "watch" for /dev/ubi. 2019-08-16 14:37:14 +03:00			`KERNEL=="loop\|mmcblk[0-9]\|msblk[0-9]\|mspblk[0-9]\|nvme\|sd\|vd\|xvd\|bcache\|cciss\|dasd\|ubd\|ubi\|scm\|pmem\|nbd\|zd*", \`
udev: assume all devices which have persistent links also need to be watched We had two similar lists, but one was accepting many more device types. I assume that this is by mistake, simply because the lack of device links is easier to notice than the lack of synthesized event after the device is written to. This uses the same list in both places, effectively adding "watch" attribute to /dev/nbd, /dev/zd, etc. 2019-08-16 14:20:04 +03:00			`OPTIONS+="watch"`