At 05:28 PM 1/26/2003, David Laight wrote:
> > when it starts to boot during install, 'dmesg' reports good values for
> > cylinders/heads/sectors...but during the setup, netbsd claims it cannot
> > determine these.
>
>define 'good'!
>There are two separate sets of CHS values:
>- those reported by the disk
>- those reported by the BIOS
>
>In order for the boot process to work properly the BIOS values must be
>correct.  Typically these will be 63 sectors, 15 or 16 heads and a maximum
>of 1024 cylinders.
>
> > So I used them anyways, sliced up the disk (netbsd is the only thing on 
> it)
> > and then continued with a full install (minus and X stuff).
> >
> > It finished and then I tried to reboot.....
> >
> > 'no operating system found'
>
>Ok that one comes from the mbr (sector 0) code and means it failed
>to find the aa55 magic number at the end of the first sector read
>from a partition.
>
>Possibly something forgot to run /usr/mdec/installboot, but I'd
>bet on something else being wrong.
>Maybe you failed to put the root filesystem at the start of the
>netbsd partition?
>
>Boot from the install CD and (I beleive) type ^Z to suspend the
>installer.  This should give you a shell prompt.
>
>You should be able to run 'fdisk' and 'disklabel', what do they say?
>
>(the output of 'sysctl machdep.diskinfo' would be useful, but you
>almost certainly don't have a recent enough copy of sysctl.)
>
>         David

halting the install....

fdisk reports this:

# fdisk -u sd0

sd0: no disk label
Disk: /dev/rsd01
NetBSD disklabel disk geometry:
cylinders: 26302 heads: 2 sectors/track: 681 (1362 sectors/cylinder)

BIOS disk geometry:
cylinders: 26302 heads: 2 sectors/track: 681 (1362 sectors/cylinder)

Do you want to change out idea of what BIOS things? [n]

All partitions 0-3 come up as:
<UNUSED>

# disklabel shows a normal *bsd style label that looks fine, but says
'fictious' under label:


Does this offer any help?



>--
>David Laight: david@l8s.co.uk






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J.D. Bronson
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