On Wed, Apr 20, 2016 at 11:18 AM, Josh Boyer <jwboyer@xxxxxxxxxxxxxxxxx> wrote: > On Wed, Apr 20, 2016 at 1:09 PM, Chris Murphy <lists@xxxxxxxxxxxxxxxxx> wrote: >> Hi, >> >> Do Fedora kernels inhibit hibernation (linux suspend to disk) when >> UEFI Secure Boot is enabled? I'm pretty sure the answer is yes but I'd > > Yes. Hibernation is not possible if SB is enabled. OK good. Googling, there's some idea of getting signed hibernation images so that this could be reenabled? But those are old like 2012/2013 era. Is there anything more recent about where this is? Or maybe it requires some other work like the > >> rather not poke the NUC with a stick... My expectation is if I do >> 'systemctl hibernate' that I'll get some kind of message rather than >> hibernation? > > At a kernel level, we eliminate hibernation as a choice for power > state. You'll see a lack of the 'disk' option in /sys/power/state and > /sys/power/disk should say '[disabled]'. What systemd does with that > information, I have no idea. Confirmed: [root@f23s ~]# mokutil --sb-state SecureBoot enabled [root@f23s ~]# cat /sys/power/state freeze mem [root@f23s ~]# cat /sys/power/disk [disabled] I'll try 'systemctl hibernate' some other time and report back what happens if it's remarkable. -- Chris Murphy _______________________________________________ kernel mailing list kernel@xxxxxxxxxxxxxxxxxxxxxxx http://lists.fedoraproject.org/admin/lists/kernel@xxxxxxxxxxxxxxxxxxxxxxx
