Linux@lemmy.mlbyearthling@piefed.social
20 hours

Magic Sysrq

English

It’s rare I need to reboot a locked up system but I’d like to have the option available if it should happen.

I use a wireless keyboard which isn’t full size and unfortunately doesn’t have a Sysrq or Printscreen key. Am I out of luck with using Magic Sysrq keys or is there a way to use an alternative key combination?

Thank you

8
    • MonkderVierte@lemmy.zip
      2 hours

      Also, you need to create a .conf file in /etc/sysctl.d with kernel.sysrq=1 to enable it now.

    • hexagonwin@lemmy.today
      19 hours

      AFAIK there’s no way to change it other than modifying the hardcoded keycodes and recompiling the kernel. (please correct me if I’m wrong)

      • eldavi@lemmy.mlEnglish
        19 hours

        i’m likely wrong, but i was under the impression that we’ve left out sysreq keys out of the kernel a while ago.

        • qprimed@lemmy.mlEnglish
          19 hours

          sysrq is often a runtime config in many distributions (e.g. Debian). sysrq+reisub is really useful on occasion.

          @[email protected] some keyboards without a dedicated sysrq/printscr key will emulate with a different key combo (many thinkpads use Fn+k)

          edit: ping

          • earthling@piefed.socialEnglish
            19 hours

            I think I’m out of luck then, I did some research before making this post and my keyboard (Logitech k400+) doesn’t have an alternative key combo.

            I guess I’ll have to keep doing safe reboots by logging into a terminal, a little less convenient than Sysrq + reisub but not a big deal.

            Thanks everyone.

            • qprimed@lemmy.mlEnglish
              10 hours

              hey there. thanks for the heads up - sounds like a possible feature request perhaps.