Current File : //lib/udev/rules.d/64-btrfs.rules

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

SUBSYSTEM!="block", GOTO="btrfs_end"
ACTION=="remove", GOTO="btrfs_end"
ENV{ID_FS_TYPE}!="btrfs", GOTO="btrfs_end"
ENV{SYSTEMD_READY}=="0", GOTO="btrfs_end"

# let the kernel know about this btrfs filesystem, and check if it is complete
IMPORT{builtin}="btrfs ready $devnode"

# mark the device as not ready to be used by the system
ENV{ID_BTRFS_READY}=="0", ENV{SYSTEMD_READY}="0"

# reconsider pending devices in case when multidevice volume awaits
ENV{ID_BTRFS_READY}=="1", RUN+="/usr/bin/udevadm trigger -s block -p ID_BTRFS_READY=0"

LABEL="btrfs_end"