Date: Mon, 24 Jul 2000 02:16:35 +0200 From: Siegbert Baude <siegbert.baude@gmx.de> To: Mike Smith <msmith@freebsd.org>, "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: No /boot/loader (dangerously dedicated) Message-ID: <397B8AE3.BAB57C72@gmx.de> References: <200007232340.QAA17987@mass.osd.bsdi.com>
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Mike Smith wrote: > > > Actually, no. Both of these controllers' firmware will read the on-disk > > > geometry and prefer that. > > > > That's not true for all SCSI controllers. > > It's true for the vast majority of those available today. You're welcome > to go look at their BIOS code and check it out yourself. I'm afraid, my skills won't allow this. > Adaptec allow you a configuration option which mutates the selection of > translation modes (there are actually three of them). Both Adaptec and > Symbios/LSI will read the first block off the disk and prefer the > geoemtry there if they find a valid MBR that matches the disk. It was in 1998 when I purchased my last SCSI-controller and I decided to buy a Symbios one because of the above mentioned reason. So this is a new piece of information for me, that Adaptec is now also able to do this. Sorry. > > The same can happen to (E)IDE-disks if the BIOSes of different > > motherboards use different translation modes. > > This is less of an issue with the EDD/EDD3 standard defining the > traslation algorithms. True for nowadays boards. Only some very old ones had trouble with this, according to my experience. Regards Siegbert To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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