*BSD News Article 67211


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From: brian@awfulhak.demon.co.uk (Brian Somers)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: When booting, get Error: C:1286 > 1023 (BIOS limit). Then it hangs.
Date: 30 Apr 1996 04:28:43 +0100
Organization: Coverform Ltd.
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Paul Verba (verba@cris.com) wrote:
: During the boot, it says 

: >> FreeBSD BOOT @ 0x10000: 640/7168 k of memory
: Use hd(1,a)/kernel ....

: ...ect....

: Boot:
: Error: C:1286 >1023 (BIOS limit)

: ----

: My config seems okay, i installed from floppies, did the boot, root floppies,
: did the bin distribution, in entirety. Kernel is in the root directory.

: 1 big partition, 4 slices: / , /var, /usr, and swap. The filesystems check
: out on all 3 slices. Did fsck on each of the slices, they look okay.

: What could be wrong? How do i fix it?

: Thanks

: Andrew

The kernel is saying that it cannot read past the 1023 sector limit imposed
by you BIOS... not during boot anyway.

You must make sure that the FreeBSD root partition (a slice) falls within the
disk space addressable by your BIOS as FreeBSD uses the BIOS to load
the kernel.

As a rule of thumb (when trying to push FreeBSD as far up the disk as
possible), start your partition at sector 1000, and make the root partition
20Mb.

Of course it's now possible to have a 20Mb partition <1023, and another
partition somewhere else.

--
Brian <brian@awfulhak.demon.co.uk>
Don't _EVER_ lose your sense of humour....