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The charity recycling project where I volunteer
has been donated a Sun Ultra5. It's in near
perfect condition, but doesn't complete the boot
process.

It looks to be a 400MHz machine, with four 64MB
DIMMs and an LSI Logic SCSI card. The hard disk
has been removed, but everything else seems to be
present. I'm testing it with a Type 6 keyboard.

The immediate symptom is that there's no display
on the monitor. I hooked up a dumb terminal to
the serial port, and enabled the full POST.

The POST checks run fine, and report a pass. The
system then tries to boot normally, but hangs...

Sun Ultra 5/10 UPA/PCI 3.25 version/created 200/01/14 13:40
Probing keyboard Done

Skipping POST because of L1 keyboard command

Cleaning E$ Tags Done
Cleaning I/D TLBs Done
Probing Memory Done
MEM BASE = 0000.0000.1000.0000
MEM SIZE = 0000.0000.0800.0000
11-Column Mode Enabled
MMUs ON
Copy Done
PC = 0000.01ff.f000.201c
PC = 0000.0000.0000.2060
Decompressing into Memory Done
Size = 0000.0000.0006.e323

The cursor sits at the end of the "Size" line, and
the system goes no further.

Can anyone suggest what might be wrong, or further
testing I can do to help diagnose the problem?

Thanks for your help.

Nick.

--
Nick Chalk ................. once a Radio Designer
Confidence is failing to understand the problem.

Nick Chalk wrote:
> The charity recycling project where I volunteer
> has been donated a Sun Ultra5. It's in near
> perfect condition, but doesn't complete the boot
> process.
>
> It looks to be a 400MHz machine, with four 64MB
> DIMMs and an LSI Logic SCSI card. The hard disk
> has been removed, but everything else seems to be
> present. I'm testing it with a Type 6 keyboard.
>
> The immediate symptom is that there's no display
> on the monitor. I hooked up a dumb terminal to
> the serial port, and enabled the full POST.
>
> The POST checks run fine, and report a pass. The
> system then tries to boot normally, but hangs...
>
> Sun Ultra 5/10 UPA/PCI 3.25 version/created 200/01/14 13:40
> Probing keyboard Done
>
> Skipping POST because of L1 keyboard command
>
> Cleaning E$ Tags Done
> Cleaning I/D TLBs Done
> Probing Memory Done
> MEM BASE = 0000.0000.1000.0000
> MEM SIZE = 0000.0000.0800.0000
> 11-Column Mode Enabled
> MMUs ON
> Copy Done
> PC = 0000.01ff.f000.201c
> PC = 0000.0000.0000.2060
> Decompressing into Memory Done
> Size = 0000.0000.0006.e323
>
> The cursor sits at the end of the "Size" line, and
> the system goes no further.
>
> Can anyone suggest what might be wrong, or further
> testing I can do to help diagnose the problem?
>
> Thanks for your help.
>
> Nick.
>
If the hard disk has been removed, where do you expect it to find an OS
to boot?

--
The e-mail address in our reply-to line is reversed in an attempt to
minimize spam. Our true address is of the form che...@prodigy.net.

CJT <abujlehc@prodigy.net> wrote:
> If the hard disk has been removed, where do you
> expect it to find an OS to boot?

I don't. I expect it to turn the monitor on,
though, and get to the OpenBoot prompt.

I've worked on two other Ultra 5s in the past, and
they've reached OpenBoot without an HD connected.
Does this one need a disk before it will
initialise?

Nick.

--
Nick Chalk ................. once a Radio Designer
Confidence is failing to understand the problem.

Nick Chalk wrote:
> CJT <abujlehc@prodigy.net> wrote:
>
>>If the hard disk has been removed, where do you
>>expect it to find an OS to boot?
>
>
> I don't. I expect it to turn the monitor on,
> though, and get to the OpenBoot prompt.
>
> I've worked on two other Ultra 5s in the past, and
> they've reached OpenBoot without an HD connected.
> Does this one need a disk before it will
> initialise?
>
> Nick.
>

Try Stop-N as you power up to reset devices to factory defaults.

--
The e-mail address in our reply-to line is reversed in an attempt to
minimize spam. Our true address is of the form che...@prodigy.net.

CJT <abujlehc@prodigy.net> wrote:
> Nick Chalk wrote:
>> I've worked on two other Ultra 5s in the past,
>> and they've reached OpenBoot without an HD
>> connected. Does this one need a disk before it
>> will initialise?
> Try Stop-N as you power up to reset devices to
> factory defaults.

Thanks for the suggestion.

Unfortunately, that doesn't change the response.
The boot still hangs at the same point.

What confuses me is that the POST sequence runs
fine, and the tests pass.

Nick.

--
Nick Chalk ................. once a Radio Designer
Confidence is failing to understand the problem.

Nick Chalk <nick@linuxetc.co.uk> wrote:
> What confuses me is that the POST sequence runs
> fine, and the tests pass.

I think I've seen scsi bus jams do similar things.

--
Darren Dunham ddunham@taos.com
Senior Technical Consultant TAOS http://www.taos.com/
Got some Dr Pepper? San Francisco, CA bay area
< This line left intentionally blank to confuse you. >

Darren Dunham <ddunham@redwood.taos.com> wrote:
> Nick Chalk <nick@linuxetc.co.uk> wrote:
>> What confuses me is that the POST sequence runs
>> fine, and the tests pass.
> I think I've seen scsi bus jams do similar
> things.

Thanks Darren.

I'll try pulling out the SCSI card, and doing a
Stop-N boot.

Nick.

--
Nick Chalk ................. once a Radio Designer
Confidence is failing to understand the problem.