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Re: [Xen-users] Verification of CPU

  • To: jonr@xxxxxxxxxx
  • From: Nico Kadel-Garcia <nkadel@xxxxxxxxx>
  • Date: Wed, 25 Jul 2007 22:14:55 +0100
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Wed, 25 Jul 2007 14:12:36 -0700
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jonr@xxxxxxxxxx wrote:
Quoting Nico Kadel-Garcia <nkadel@xxxxxxxxx>:

This sort of thing is why I prefer to stuff fake keyboard widgets onto
the PS/2 port, rather than rely on BIOS resetting to allow the system
to boot without a keyboard attached on so many server class systems.

This is a good case for serial console access with a cyclades or some other type of serial access box. You then ssh into the cyclades and can then connect to the serial port and change your BIOS settings.
Which are..... $1000/16 port console last time I looked, plus ridiculously expensive specialized cabling with pinouts invented by Bozo the wiring clown, doesn't necessarily work at all given the extremely poor BIOS testing of new motherboards and failure to test "remote console", and notice what I just said about resetting the BIOS if it fails to reboot 3 times in a row? That usually disables the so-called "remote console" or actually the serial BIOS access. So does any update of the BIOS itself, even if it's for a critical repair.

Serial console is most reliable for system shell access, not BIOS access, due to these little adventures. It's OK if you retain keyboard and console access for such emergencies, but it's not a complete solution to the BIOS management problem.

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