Re: cpuctl(8) - unable to update amd ucode - no such file

[Robert Elz <kre%munnari.OZ.AU@localhost>]

    Date:        Fri, 18 Sep 2026 21:39:35 -0700
    From:        P Gman <patrickgunsolley%gmail.com@localhost>
    Message-ID:  <CACSgzaKqeraNHc2EnmgxSZEUJsQpO1pLdtn-oTxO-F6_WQHVGg%mail.gmail.com@localhost>

  | Each form returns "cpuctl: -1: No such file or directory"

The hint for the problem is the "-1" in that message.  It
turns out that cpuctl doesn't actually like you giving -1
for the processor number, and you don't need to, that is the
default.   (Any other number, except -1 is acceptable).

That's why it can't find the file, it is looking for something
literally called "-1".

Just leave that out, and try again.  Generally for an AMD processor
when the microcode is stored in the (a) correct place, just

	cpuctl [-v] ucode

should be enough.   I'd suggest including the -v when you run
it manually (but not when it is in a script run by rc.d or similar,
once the correct format works)

kre