OF booting of G3-upgraded 7600?

OF booting of G3-upgraded 7600?

[Michel Lanners]

Hi there,

Anybody have any idea why a 7600 upgraded with a littleJoe G3 card
can't boot through OF? I always get a 'Default Catch'.

I didn't have the leasure to analyze this further, but anyway
FAQ-o-Matic didn't offer any advice.

So far, I've been forced to boot with BootX, which works well, but is a
pain in the rear when testing new kernels (through the fact it forces me
to copy the new kernel over to MacOS).

As has been reported before, mounting HFS partitions directly can
lead to massive filesystem corruption (it happened to me as well...
while accidentaly overwriting an existing file), so I'm now moving my
kernels through a second machine via FTP....

Thanks

Michel

-------------------------------------------------------------------------
Michel Lanners                 |  " Read Philosophy.  Study Art.
23, Rue Paul Henkes            |    Ask Questions.  Make Mistakes.
L-1710 Luxembourg              |
email   mlan@cpu.lu            |
http://www.cpu.lu/~mlan        |                     Learn Always. "


[[ This message was sent via the linuxppc-dev mailing list.  Replies are ]]
[[ not  forced  back  to the list, so be sure to Cc linuxppc-dev if your ]]
[[ reply is of general interest. Please check http://lists.linuxppc.org/ ]]
[[ and http://www.linuxppc.org/ for useful information before posting.   ]]

Re: OF booting of G3-upgraded 7600?

[Jeffrey Karl Lassahn]

One simple thing that bit me is that the machine can try to boot before
the hard drive hs spun up.  This gives the default catch you're seeing,
and it depends on CPU speed.

I fixed it with an OpenFirmware change that I haven't bothered to fully
understand, but which seems to work great.  That is:
set 
boot-command
to
begin ['] boot catch 1000 ms cr again

(I got this from some unremembered place on the Web that discusses Open
Firmware boot problems...)

-JKL


On Mon, 2 Aug 1999, Michel Lanners wrote:

> 
> Hi there,
> 
> Anybody have any idea why a 7600 upgraded with a littleJoe G3 card
> can't boot through OF? I always get a 'Default Catch'.
> 
> I didn't have the leasure to analyze this further, but anyway
> FAQ-o-Matic didn't offer any advice.
> 
> So far, I've been forced to boot with BootX, which works well, but is a
> pain in the rear when testing new kernels (through the fact it forces me
> to copy the new kernel over to MacOS).
> 
> As has been reported before, mounting HFS partitions directly can
> lead to massive filesystem corruption (it happened to me as well...
> while accidentaly overwriting an existing file), so I'm now moving my
> kernels through a second machine via FTP....
> 
> Thanks
> 
> Michel
> 
> -------------------------------------------------------------------------
> Michel Lanners                 |  " Read Philosophy.  Study Art.
> 23, Rue Paul Henkes            |    Ask Questions.  Make Mistakes.
> L-1710 Luxembourg              |
> email   mlan@cpu.lu            |
> http://www.cpu.lu/~mlan        |                     Learn Always. "
> 
> 

[[ This message was sent via the linuxppc-dev mailing list.  Replies are ]]
[[ not  forced  back  to the list, so be sure to Cc linuxppc-dev if your ]]
[[ reply is of general interest. Please check http://lists.linuxppc.org/ ]]
[[ and http://www.linuxppc.org/ for useful information before posting.   ]]

Re: OF booting of G3-upgraded 7600?

[Michel Lanners]

Hi all,

On   2 Aug, this message from Jeffrey Karl Lassahn echoed through cyberspace:
> One simple thing that bit me is that the machine can try to boot before
> the hard drive hs spun up.  This gives the default catch you're seeing,
> and it depends on CPU speed.
> 
> I fixed it with an OpenFirmware change that I haven't bothered to fully
> understand, but which seems to work great.  That is:
> set 
> boot-command
> to
> begin ['] boot catch 1000 ms cr again

I already have this in my bootvars. I will check again, but at first
glance, I don't think this will help.

Thanks anyway ;-)

Michel

-------------------------------------------------------------------------
Michel Lanners                 |  " Read Philosophy.  Study Art.
23, Rue Paul Henkes            |    Ask Questions.  Make Mistakes.
L-1710 Luxembourg              |
email   mlan@cpu.lu            |
http://www.cpu.lu/~mlan        |                     Learn Always. "


[[ This message was sent via the linuxppc-dev mailing list.  Replies are ]]
[[ not  forced  back  to the list, so be sure to Cc linuxppc-dev if your ]]
[[ reply is of general interest. Please check http://lists.linuxppc.org/ ]]
[[ and http://www.linuxppc.org/ for useful information before posting.   ]]

Re: OF booting of G3-upgraded 7600?

[Michel Lanners]

Hi all,

More details on my OF booting problems:

On   2 Aug, this message from mlan@cpu.lu echoed through cyberspace:
> Anybody have any idea why a 7600 upgraded with a littleJoe G3 card
> can't boot through OF? I always get a 'Default Catch'.

The error messages are:

- on boot:

Default Catch!, code=FFF00400

- on subsequent 'boot' commands:

0> boot Claim failed
 ok
0>

I do have a boot-command setting thaht makes sure the disk has had time
to spin up, and retries loading multiple times.

Any thoughts? Anyone able to decode the Default Catch?

Michel
 
-------------------------------------------------------------------------
Michel Lanners                 |  " Read Philosophy.  Study Art.
23, Rue Paul Henkes            |    Ask Questions.  Make Mistakes.
L-1710 Luxembourg              |
email   mlan@cpu.lu            |
http://www.cpu.lu/~mlan        |                     Learn Always. "


[[ This message was sent via the linuxppc-dev mailing list.  Replies are ]]
[[ not  forced  back  to the list, so be sure to Cc linuxppc-dev if your ]]
[[ reply is of general interest. Please check http://lists.linuxppc.org/ ]]
[[ and http://www.linuxppc.org/ for useful information before posting.   ]]

Re: OF booting of G3-upgraded 7600?

[Paul Mackerras]

Michel Lanners <mlan@cpu.lu> wrote:

> Default Catch!, code=FFF00400

That's an instruction access exception.  What were the srr0 and srr1
values?  Also, doing ".registers" will show the state of all of the
registers.

> - on subsequent 'boot' commands:
> 
> 0> boot Claim failed

The loader is trying to use memory that is already allocated, since it
was allocated by the loader last time. :-)

Paul.

[[ This message was sent via the linuxppc-dev mailing list.  Replies are ]]
[[ not  forced  back  to the list, so be sure to Cc linuxppc-dev if your ]]
[[ reply is of general interest. Please check http://lists.linuxppc.org/ ]]
[[ and http://www.linuxppc.org/ for useful information before posting.   ]]

Re: OF booting of G3-upgraded 7600?

[Michel Lanners]

Hi Paul,

On   5 Aug, this message from Paul Mackerras echoed through cyberspace:
>> Default Catch!, code=FFF00400
> 
> That's an instruction access exception.  What were the srr0 and srr1
> values?  Also, doing ".registers" will show the state of all of the
> registers.

Here you are:

(values are correct (5 in %CR), the layout is 'by hand')

0> boot CLAIM FAILED!, code=FFF00400
 ok
0> .registers
	Client's Fix Pt Regs:
  00 DEADBEEF DEADBEEF DEADBEEF 003F4400 00000020 FF8099B8 DEADBEEF 000000FF
  08 00000002 00000008 DEADBEEF DEADBEEF DEADBEEF DEADBEEF 003F0000 DEADBEEF
  10 DEADBEEF DEADBEEF DEADBEEF DEADBEEF DEADBEEF DEADBEEF DEADBEEF DEADBEEF
  18 DEADBEEF DEADBEEF DEADBEEF DEADBEEF DEADBEEF DEADBEEF DEADBEEF DEADBEEF

	Special Regs:
   %IV: 00000400 %SRR0: 003F4058 %SRR1: 08003070
   %CR: 5EADBEEF   %LR: DEADBEEF  %CTR: 00000000 %XER: C000BE6F
  %DAR: 00001000 %DISR: 42000000 %SDR1: 06FE0000
 ok
0> msr@ ok 
1> u. B070 ok
0>

>> - on subsequent 'boot' commands:
>> 
>> 0> boot Claim failed
> 
> The loader is trying to use memory that is already allocated, since it
> was allocated by the loader last time. :-)

Seems reasonable...

Thanks

Michel

-------------------------------------------------------------------------
Michel Lanners                 |  " Read Philosophy.  Study Art.
23, Rue Paul Henkes            |    Ask Questions.  Make Mistakes.
L-1710 Luxembourg              |
email   mlan@cpu.lu            |
http://www.cpu.lu/~mlan        |                     Learn Always. "


[[ This message was sent via the linuxppc-dev mailing list.  Replies are ]]
[[ not  forced  back  to the list, so be sure to Cc linuxppc-dev if your ]]
[[ reply is of general interest. Please check http://lists.linuxppc.org/ ]]
[[ and http://www.linuxppc.org/ for useful information before posting.   ]]