Date: Tue, 27 May 1997 19:28:59 +0200 From: j@uriah.heep.sax.de (J Wunsch) To: freebsd-scsi@freebsd.org, current-users@netbsd.org Subject: Re: ncr driver working well with 53c875? Message-ID: <19970527192859.WW56689@uriah.heep.sax.de> In-Reply-To: <19970527131308.62693@x14.mi.uni-koeln.de>; from Stefan Esser on May 27, 1997 13:13:08 %2B0200 References: <Pine.BSI.3.96.970526170647.9159A-100000@urchin.bga.com> <Pine.BSF.3.95.970526213857.9988A-100000@alive.znep.com> <19970527080727.YB12431@uriah.heep.sax.de> <19970527131308.62693@x14.mi.uni-koeln.de>
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As Stefan Esser wrote: > > Stefan, do you have a connection to Tekram? > > No, not really. I know the mail address of some developer > there, and had planned to send him the fixes I applied to > the AMD SCSI driver (the low-end Tekram cards use the AMD > chip, but share most of the driver code). Well, please bug him about the BIOS bug. ;-) > Maybe the controller is less worried when it does not see > any MBR, than when it finds one with values it does not > like ... :) No such thing like ``no MBR''. The MBR is by definition the very first 512-byte record of a bootable drive. It needs to have a 0x55aa signature at the end in order to be recognized by the BIOS. Some BIOSes apparently try to be `smarter', and wanna imply more semantics than this signature. (Normally, the BIOS should just load an MBR that has this signature onto address 0x7c0:0, and execute it.) -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)
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