name : 90-rtc-sys-time-init.rules ACTION!="add", GOTO="rtc-sys-end" SUBSYSTEM!="rtc", GOTO="rtc-sys-end" KERNEL!="rtc*", GOTO="rtc-sys-end" # When device rtc* is added # 1) and the RTC module have successfully set system time from RTC (indicated with hctosys attribute) # 2) and the kernel command line does not contain parameter ubuntu_core.rtc_sys_time_init that will cause # systemd generator rtc-sys-time-init-generator to instantiate rtc-sys-time-init@.service # instantiate rtc-sys-time-init@.service for the device node IMPORT{cmdline}=="ubuntu_core.rtc_sys_time_init" ATTR{hctosys}=="1", ENV{ubuntu_core.rtc_sys_time_init}!="?*", ENV{SYSTEMD_WANTS}+="rtc-sys-time-init@.service" # When device rtc* is added create device unit dev-rtc*.device which is used by rtc-sys-time-init@.service # enabled by generator rtc-sys-time-init-generator when kernel command line contains parameter # ubuntu_core.rtc_sys_time_init=/dev/rtc* TAG+="systemd" LABEL="rtc-sys-end"