boot trouble

[Didier BERNARD]

hello,
i get an old supersparc 2.
when i try to boot, it go to openboot prompt (ok)
but when i type de command it always reply me:
data access exception.

What can i do?????????
i would like to install a sarge on it, but i can't change the boot device, so...


it's a ROM rev. 2.25 with 64MB memory

help please..


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[Kevin Fullerton]

Hi there,

What command are you giving OpenBoot? boot cdrom?

Is the cdrom a known, good version of Debian/SPARC?

Have you tried running diagnostics from the OpenBootPROM prompt?

Cheers!

Kevin Fullerton

-----Original Message-----
From: Didier BERNARD [mailto:dbernard3@...]
Sent: 12 June 2006 10:59
To: debian-sparc@...
Subject: boot trouble

hello,
i get an old supersparc 2.
when i try to boot, it go to openboot prompt (ok) but when i type de command
it always reply me:
data access exception.

What can i do?????????
i would like to install a sarge on it, but i can't change the boot device,
so...


it's a ROM rev. 2.25 with 64MB memory

help please..


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[Didier BERNARD]

i do:
printenv
-> data access exception
set-defaults
-> data access exception
go
-> data access exception
test cdrom
-> data access exception
test disk
-> data access exception
test-all
-> data access exception

the only command that do something is:
probe-scsi-all
->
/iommu@f,e00000/sbus@f,e0001000/espdma@f,400000/esp@f,800000
Target 1
Unit 0  Disk IBM .....
Target 3
Unit 0  Disk QUANTUM .....
Target 6
Unit 0  Removable Read only device TOSHIBA....

it's like i've only a piece of the openboot.. :/



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[Kevin Fullerton]

Hi,

Yep, looks like you may have a corrupted NVRAM/PROM on the machine and so
OpenBoot isn't working - it may be worth seeking advice from someone that
knows more about SPARC's etc. but it sounds like a new PROM is needed for
the machine - it is possible to re-flash the PROM from the OpenBoot command
line, but it needs to boot from cdrom, which it's sounding like yours won't
do :(  

-----Original Message-----
From: Didier BERNARD [mailto:dbernard3@...]
Sent: 12 June 2006 14:49
To: debian-sparc@...
Subject: RE: boot trouble


i do:
printenv
-> data access exception
set-defaults
-> data access exception
go
-> data access exception
test cdrom
-> data access exception
test disk
-> data access exception
test-all
-> data access exception

the only command that do something is:
probe-scsi-all
->
/iommu@f,e00000/sbus@f,e0001000/espdma@f,400000/esp@f,800000
Target 1
Unit 0  Disk IBM .....
Target 3
Unit 0  Disk QUANTUM .....
Target 6
Unit 0  Removable Read only device TOSHIBA....

it's like i've only a piece of the openboot.. :/



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[Daniel J. Priem]

How big is your harddisk?
if it is about 9GB try the follwoing

at first try to boot without the ibm disk or without the quantum disk.

if this all dont work read carefully this:

http://groups.google.com/group/comp.sys.sun.misc/msg/a76498dae2bbb5c1?dmode=source

and then do this:


enter obp
reset-all
enter obp

{0} ok nvedit
0: probe-all install-console banner ?
1: " Probing Ultra SCSI controller to work around Trap 3e error" type cr
2: " /pci@1f,4000/scsi@3" " show-children" execute-device-method drop
3:
{0} ok nvstore
{0} ok nvrun

Line 2 needs to be fixed to your ioaddresses

For me it helps to get all my sparc's work with some 9GB disks

Regards
Daniel



Didier BERNARD <dbernard3@...> writes:

> probe-scsi-all
> ->
> /iommu@f,e00000/sbus@f,e0001000/espdma@f,400000/esp@f,800000
> Target 1
> Unit 0  Disk IBM .....
> Target 3
> Unit 0  Disk QUANTUM .....
> Target 6
> Unit 0  Removable Read only device TOSHIBA....
>
> it's like i've only a piece of the openboot.. :/

[Daniel J. Priem]

forgot something.
There is a really good documentation and links at:

http://www.gentoo.org/doc/en/gentoo-sparc-obpreference.xml

And without any warranty
"
to reset the OBP to its defaults, turn box off, press and hold stop-n
and turn the box back on, when the keyboard beeps, the OBP has been
reset to its defaults. To run full diagnostics on a box with a keyboard,
press and hold stop-d then turn on the box.
"

Regards
Daniel



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[Didier BERNARD]

thanx!!
after 10 reboot with stop+n
the system accept a boot cdrom command
it start booting,
i choose the language en keyboard, but when it must mount the cdrom
it says that have no cdrom....
strange...


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