Date: Wed, 25 Oct 1995 14:20:48 -0700 (MST) From: Terry Lambert <terry@lambert.org> To: lenzi@cwbone.bsi.com.br (Sergio Lenzi) Cc: hackers@FreeBSD.org Subject: Re: boot disk.... Message-ID: <199510252120.OAA19573@phaeton.artisoft.com> In-Reply-To: <Pine.BSF.3.91.951025192102.3633C-100000@cwbone.bsi.com.br> from "Sergio Lenzi" at Oct 25, 95 07:24:34 pm
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> I am trying to install a 2.1 version of FreeBSD > in a drive that has more than 1024 cyl. > > It does not install, gives a message saying that > bios cannot access more than 1023 clys. It can't. You can't guarantee to be able to read data (like /kernel) from an 'a' slice that ends after the 1023'rd cylinder because you can only stuff a 10 bit value into the INT 21/13 calls. Since the boot code on DOS systems is BIOS based, you are screwed. > I am trying a solution, by making a boot.flp > from the release with the disk.c file from > the 2.0.5 version. > > Has anyone have a better Idea??? That's one. Others are: 1) Rewrite the BIOS. 8-). 2) Rewrite the boot code to be controller specific and not use the BIOS. 3) Set your tanslation so all cylinders are below 1024. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.
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