From owner-freebsd-hackers Sun Jun 18 21:40:49 2000 Delivered-To: freebsd-hackers@freebsd.org Received: from rover.village.org (rover.village.org [204.144.255.49]) by hub.freebsd.org (Postfix) with ESMTP id CA93837BB93 for ; Sun, 18 Jun 2000 21:40:38 -0700 (PDT) (envelope-from imp@harmony.village.org) Received: from harmony.village.org (harmony.village.org [10.0.0.6]) by rover.village.org (8.9.3/8.9.3) with ESMTP id WAA32342; Sun, 18 Jun 2000 22:40:35 -0600 (MDT) (envelope-from imp@harmony.village.org) Received: from harmony.village.org (localhost.village.org [127.0.0.1]) by harmony.village.org (8.9.3/8.8.3) with ESMTP id WAA53478; Sun, 18 Jun 2000 22:39:11 -0600 (MDT) Message-Id: <200006190439.WAA53478@harmony.village.org> To: "Daniel C. Sobral" Subject: Re: freebsd bios. Cc: Ronald G Minnich , hackers@FreeBSD.ORG In-reply-to: Your message of "Sat, 17 Jun 2000 07:35:51 +0900." <394AABC7.AD978219@newsguy.com> References: <394AABC7.AD978219@newsguy.com> Date: Sun, 18 Jun 2000 22:39:11 -0600 From: Warner Losh Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message <394AABC7.AD978219@newsguy.com> "Daniel C. Sobral" writes: : If your BIOS project recognizes the flash card as a disk, accessible : with normal BIOS functions, then loader can work as is (minus whatever : you need modified). If not, it can be changed to understand whatever you : have to access the data in the flash card. I can verify that one can boot of a CompactFlash in a IDE adapter, off DOC2K and off IDE flash drivers. I would suppose that anything that looks remotely like an IDE disk will work, as will anything that does what DOC2k does and install its own BIOS functions (roughly speaking) will work as well. My main test gig at work has been diskless for a long time. I boot of a 64MB CF card. For a while I was booting off a 8M DOC2k chip, but I broke it by writing to it too many times (it was a bad one from a while back when they had some QC issues). No changes to the boot loader were necessary, other than building serial blocks. On my Teknor SBC, I can even put a jumper in place to get a serial BIOS... Too bad other vendors don't offer this functionality :-(. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message