View file File name : 64-btrfs.rules Content :# 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"