Date: Sat, 14 Apr 2007 12:25:57 +0300 From: Andrei Kolu <antik@bsd.ee> To: freebsd-stable@freebsd.org Subject: Re: 6.2 loader hangs on Supermicro P8SCT Message-ID: <200704141225.57613.antik@bsd.ee> In-Reply-To: <200704141706.16478.doconnor@gsoft.com.au> References: <200704131237.05624.doconnor@gsoft.com.au> <20070413082557.M49393@gandalf> <200704141706.16478.doconnor@gsoft.com.au>
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On Saturday 14 April 2007 10:36, Daniel O'Connor wrote: > On Friday 13 April 2007 16:17, patrick wrote: > > > Unfortunately that makes it impossible to interrupt the loader to go > > > into single user mode (or whatever). > > > > that is depending on the situation you are in. there are more ways to g= et > > in 'other boot modes' then using the bootloader on the disk. > > Hmm.. How can you get to (say) single user mode, or load an old kernel? > They're the really critical things I use the loader for (usually in > desperate circumstances :) > Press any key to gain boot prompt while system is loading- look at loader=20 messages. =46rom appeared boot prompt type: boot -s Or if you want other kernel: #unload kernel #load kernel.old #boot > > > I wonder if it is a race of some sort with the BIOS doing a periodic > > > task and hence reducing the delay makes it work most of the time. > > > > Also note I have also exactly the same system (second one) which has no > > problems at all. > > Yeah it seems to affect our systems unevenly too, although they are > putatively identical.. > > > I never had the time to pull them apart to find out what the diff is > > which causing this issue. > > phase of the moon during construction or the diodes?! :) I got almost identical board P8SCi and have no problems running FreeBSD 6.1= ,=20 6.2, 7-CURRENT. Maybe you should look at supermicro site and upgrade bios. = I=20 think this is ACPI problem. You can disable ACPI temporarily at the boot=20 loader prompt by issueing "unset acpi_load" if you are having problems=20 booting an ACPI enabled machine.=20 =20 If you want to disable ACPI simply add hint.acpi.0.disabled=3D"1"=20 to /boot/device.hints.
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