Date: Mon, 21 Aug 1995 13:46:22 -0700 From: "Justin T. Gibbs" <gibbs@freefall.FreeBSD.org> To: Petri Helenius <pete@sms.fi> Cc: freebsd-questions@freebsd.org Subject: Re: Boot problem Message-ID: <199508212046.NAA10530@freefall.FreeBSD.org> In-Reply-To: Your message of "Mon, 21 Aug 95 23:31:09 %2B0300." <199508212031.XAA00758@silver.sms.fi>
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> > I've been playing around trying to install 2.0.5 or the 2.1.0 SNAP >to a SCSI-disk on my Zappa P90, with either Adaptec 2940 or 1542B. >The Zappa bios is revision 1.00.02. When I upgraded from some clone >486/66 mainboard to this one, I just moved all the disks over to 2940 >and it booted happily (running 2.0.0-SNAP950322) and still does. The boot >disk is >(ahc0:0:0): "HP C3323-300 4084" is a type 0 fixed SCSI 2 >sd0(ahc0:0:0): Direct-Access 1003MB (2056008 512 byte sectors) > > However, installing from scratch to a spare 100M or ~200M disk, the >system refuses to boot and instead reports "Missing operating system". > Booting from floppy and typing: >hd(0,a)/kernel >to the boot prompt brings the system nicely up from the harddisk and >everything is fine. I've tried to rewrite the bootblocks with disklabel >with same results. The setup program got the geometry of your second disk wrong. It should be 64 heads, 32 sectors/track, #MB reported by the SCSI probe cylinders. The most sure bet is to stick a partition on the disk using DOS fdisk and then blow it away with sysintall. Sysinstall will retrieve the proper geometry from the partition table and all will be well. > > Is there anything that can be done or are both of my disks somehow >broken ? > >Pete -- Justin T. Gibbs =========================================== Software Developer - Walnut Creek CDROM FreeBSD: Turning PCs into workstations ===========================================
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