Senior R&D Manager (Data Science) at Synopsys Software Integrity Group and Treasurer at Farset Labs
Had an interesting if annoying problem recently that I assumed would just fix itself eventually. But when you’re sick of prodding a power button to force a machine to reboot, you gotta do something.
TL;DR_ if you’re getting messages like “
Restarting System” on an attempted reboot, try setting the
reboot=pci kernel boot flag_
To do this, at the grub boot menu, press
e to edit the current boot parameters. Find the line starting with “
linux” (this is the line that actually kicks off the linux kernel) and at the end of that line, put “
Then boot normally (
F10) and try rebooting. It should work this time.
To make the change permanent, add the “
reboot=pci” flag to the “
GRUB_CMDLINE_LINUX” line of
And tada! Reboot problems solved. Please comment on what machines you’ve needed to use this on. This is currently listed as a bug
Sources and Extra Info:
At the time of writing I was on Raring, but had been on Oneric for ages, and even though the listed bug was ‘fix released’, it wasn’t fixed for me. YMMV