Date: Thu, 6 Feb 1997 17:16:25 +1100 From: Bruce Evans <bde@zeta.org.au> To: durham@w2xo.pgh.pa.us, hackers@freebsd.org Subject: Re: DOS partition trouble Message-ID: <199702060616.RAA09563@godzilla.zeta.org.au>
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>Twice now, I have removed a DOS partition >from a disk with both DOS and FreeBSD >partitions and been unable to boot FreeBSD. >... >I had tried running the partition editor when I had no DOS >partition and it gave all indications of sucessfully writing >out the boot block, but would not boot until I remade the >DOS partition. Trying to mount the root directory from the MFS >on the boot floppy gave a "bad super block" error. For SCSI disks with at least ncr controllers, this could be caused a DOS partition that ends on a cylinder boundary and FreeBSD partition that doesn't. When you remove the DOS partition, the controller's BIOS will have problems determining the disk geometry. Bruce
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