Indeed the code in http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/rtc/hctosys.c looks like it runs entirely "self-"triggered (late_initcall), not triggered by an userspace call. This function tries to open the device which simply isn't present (yet) at that time. So maybe this can be moved after the loading of the RTC modules somehow, or the error message quiesced, but I'd like to defer that to a kernel engineer.
** Tags added: bot-stop-nagging xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1410604 Title: ISST-LTE: unable to open rtc device To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1410604/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs