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Date: Mon, 31 Jan 2005 08:31:43 -0600
From: Billy Newsom <smartweb@leadhill.net>
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Subject: How do I do a COLD Reboot on FreeBSD?
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I need to do a cold restart.  I've looked through a lot of docs, and I can't 
seem to find this out.  The computer I am working with seems to no longer 
enjoy a warm reboot (like "shutdown -r now" or "reboot") but I'm pretty sure 
it will do cold reboots fine.  Is there a port, or is the shutdown command 
hackable for this, or what?

I remember many computers in bygone years which had this problem. It was 
pretty common back in the 90's it seems like.  Computers would reboot and act 
weird using CTRL-ALT-DELETE, but work fine when powered off and on.

The computer I've got actually fails a memory test during the warm reboot. 
This freezes it.  I have to power cycle the machine.  And then, the computer 
performs a warm restart, bypassing its memory checks!  One more power cycle 
laster, it will boot normally.  If I don't do this last reboot, the FreeBSD 
boot loader or the beginning of the kernel boot crashes very early.  It's 
stable otherwise on a cold reboot.

Thanks,
Billy