Date: Wed, 30 Sep 1998 10:31:25 -0700 (PDT) From: Tom <tom@uniserve.com> To: Karl Denninger <karl@Denninger.Net> Cc: Dan Nelson <dnelson@emsphone.com>, Alfred Perlstein <bright@hotjobs.com>, current@FreeBSD.ORG Subject: Re: Long IDE probes? Message-ID: <Pine.BSF.4.02A.9809301028550.7309-100000@shell.uniserve.ca> In-Reply-To: <19980930113836.A4061@Denninger.Net>
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On Wed, 30 Sep 1998, Karl Denninger wrote: > IDE by definition is probed by the BIOS before boot. Either the disk is > there or it is not, and you don't get out of POST and to Boot until that's > determined. Therefore, a long wait there is COMPLETELY pointless. Huh? First of all, more than disks can be put on IDE, and the BIOS doesn't know anything about that. Most BIOSes don't probe IDE at all, but newer ones do it to avoid static settings in the CMOS. > SCSI devices similarly are probed by the adapter BIOS. Again, there is no > reason for the long wait that I can fathom. For convienance only. Some adaptors don't probe. The adaptors don't make this info available to the OS in any way, because the OS is supposed to probe. > I have cut the SCSI timeout way down, and it massively shortens the boot > time. I'll have to do the same for the IDE stuff, since I *do* have an > ATAPI CDROM (otherwise I'd just shut off the device completely). > > -- > -- > Karl Denninger (karl@denninger.net) http://www.mcs.net/~karl > I ain't even *authorized* to speak for anyone other than myself, so give > up now on trying to associate my words with any particular organization. Tom To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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