Date: Thu, 22 Feb 2001 15:11:11 -0800 From: Peter Wemm <peter@netplex.com.au> To: Jordan Hubbard <jkh@winston.osd.bsdi.com>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/release/sysinstall disks.c Message-ID: <200102222311.f1MNBBf41756@mobile.wemm.org> In-Reply-To: <20010222203042.C2043@elia.heep.sax.de>
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J Wunsch wrote: > [sorry, replying to somewhat old mail, but i've now almost caught up > with my old commit mails...] > > As Jordan Hubbard wrote: > > > Well, last time we settled the issue, the consensus was that the > > feature should stop being "waved" at users (e.g. they should not be > > asked) but that an obscure key sequence be added for getting at > > dangerously dedicated mode. > > I second this, and it should somehow be visible in a menu of some > sort. > > Until the stupid fdisk misfeature has been completely removed from > Peecees where they store the slice starting location in two different > values (logical block # and CHS value for INT 0x13 call), the only > possible starting value that is consistent across all possible BIOS > translations is # 0, and that effectively means DD mode. So the > advantage of DD mode is that the disk is transferrable between BIOSes > using different translations. If only it were so. We stopped using DD mode at yahoo because we could not dd disk images from scsi <-> IDE and use scsi disks on different controllers (eg: ncr/sym <-> adaptec). Some combinations of BIOS and boot1 worked, but we had trouble in general. In the end, we just completely gave up and now use PXE to create non-DD disks. We were still seeing people posting regularly on the lists that had installed DD disks themselves using sysinstall and it caused their SCSI bios to lock up. > We are in general installing all > ``serious FreeBSD machines'' at work in DD mode, and i'm pretty sure > there are others as well. So we really need this option. > > (Needless to say, i hate that fdisk sh*t...) Bring on EFI! Pure LBA based! :-) Cheers, -Peter -- Peter Wemm - peter@FreeBSD.org; peter@yahoo-inc.com; peter@netplex.com.au "All of this is for nothing if we don't go to the stars" - JMS/B5 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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