Date: Tue, 5 Oct 1999 18:53:56 -0700 (PDT) From: Alfred Perlstein <bright@wintelcom.net> To: chad@rez.com Cc: stable@FreeBSD.ORG Subject: Re: disk partitions Message-ID: <Pine.BSF.4.05.9910051847310.6368-100000@fw.wintelcom.net> In-Reply-To: <199910052325.QAA01404@chad.anasazi.com>
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On Tue, 5 Oct 1999, Chad R. Larson wrote: > Is there some rule that says there can only be one FreeBSD partition > on a disk drive? > > Here's the story. This machine on which I type is a 166 MHz > Pentium, with 32 MB of RAM and an Adaptec on-the-motherboard SCSI > controller. Its single hard drive is a 4GB Segate. The boot dmesg > output is attached if you want further details. It's running > FreeBSD 2.2-STABLE, CVSup'd and built in July. > > It has been set up to dual-boot NT workstation and FreeBSD. But the > dual booting proved to be too much hassle, so I obtained a second > machine, loaded Win95 on it and left this one in BSD. Lately, I've > been getting short on disk space in the BSD world (doesn't > everyone?) and decided to poach some of the NT space. > > The disk had been set with FDISK partitions like this: > > 1 500MB type 6 dos (FAT, NT C: drive) > 2 1.5GB type 5 dos (NTFS, NT D: drive) > 3 2.0GB type 165 FreeBSD > 4 unused > > I ran "fdisk -2 -u sd0", and changed the partition type from 5 to > 165. When I attempted to reboot, BootEazy offered me > > F1 dos > F2 BSD > F3 BSD > > but F3 refuses to boot. When I hit F3, or allow the timeout to take > that as a default, the cursor moves down one line and to the left > margin and then the machine hangs. I can CTL-ALT-DEL back around to > the BootEazy prompt. F2 also does not boot (I didn't expect it to, > but wondered if the partitions got reordered somehow in BootEazy's > mind). F1 =does= boot NT. > > If I boot the 2.2.8-RELEASE live filesystem CD, and drop into fixit > mode, I can set the type on partition 2 to 0, and I can boot again. > Partition 2 disappears from the BootEazy menu. > the 2.2.x loader can't handle a BSD partition before the bootable root partition, there is a tricky fix you can do though. *** warning this may hose everything and make your dog go bald *** *** it also may not work, this idea is just from examining the *** *** code a while back *** use fdisk, and swap the partition parameters, I'm assuming your partition table looks something like this: partition 1 - NT sectors 0 - 100,000 partition 2 - FreeBSD sectors 100,000 - 200,000 what you want to do is swap the partition informations around so it looks like this: partition 1 - FreeBSD sectors 100,000 - 200,000 partition 2 - NT (to be changed to freebsd) sectors 0 - 100,000 the idea is to reorder the partition table so that the bootable FreeBSD partition come up first. > If we get past this, then I'll be asking why disklabel doesn't seem > willing to work against sd0s2c. because you want to run disklabel on sd0s2 (forget the 'c') good luck, -Alfred Perlstein - [bright@rush.net|alfred@freebsd.org] Wintelcom systems administrator and programmer - http://www.wintelcom.net/ [bright@wintelcom.net] To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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