Wolfgang> My Configuration:
Wolfgang> Sparc Classic X
Wolfgang> Redhat Linux 6.0 Kernel 2.2
Wolfgang> I got a number of used Sparc Classic X and I want to connect
Wolfgang> SCSI disks to them. These systems have an external SCSI
Wolfgang> connector (50 pins HD). If I compile the SCSI support in the
Wolfgang> kernel the system is not booting. If I do not include SCSI
Wolfgang> support and leave all the other settings the same the system
Wolfgang> is booting fine from tftp and running very well including
Wolfgang> X11.
Wolfgang> If SCSI support is included in the kernel (not as a module
Wolfgang> but directly) the error messages is:
Wolfgang> esp0: IRQ 0 SCSI ID7 Clock 40 MHz... Can not handle kernel paging at
Wolfgang> virtual address fd015000
I'm looking for the reference right now, but I remember reading very
recently that there was no difference between the two systems except
in a NVRAM settings. And here it is:
http://www.squirrel.com/sun-nvram-hostid.faq.html
I don't have an ClassicX systems here, and haven't bothered to try
doing this change to one of my spare Classics yet. Maybe when I've
finally got a video display working properly at home for console.
SparcClassic /Classic X Terminal NVRAM differences
--------------------------------------------------
This section was supplied by Gary Cook <[EMAIL PROTECTED]>. I have not
been able to try this personally because I don't currently have access
to this type of machine.
Change the following locations in NVRAM to switch between Classic
and Classic
Address ClassicX Value Classic Value
71202004 ff 00
71202005 12 00
71202006 08 00
71202007 36 00
Notes:
Classic X requires all locations to be set to above values. If they
are not, the system takes on the Classic personality. Bootprom for
Classic X cannot be Version 2.9. This version will ignore the above
NVRAM changes. Classic X requires earlier versions, such as 2.12.
Procedure
Classic --> Classic X
ok
ff 71202004 20 spacec!
12 71202005 20 spacec!
08 71202006 20 spacec!
36 71202007 20 spacec!
Classic X --> Classic
ok
00 71202004 20 spacec!
00 71202005 20 spacec!
00 71202006 20 spacec!
00 71202007 20 spacec!
John
John Stoffel - Senior Unix Systems Administrator - Lucent Technologies
[EMAIL PROTECTED] - http://www.lucent.com - 978-952-7548
[EMAIL PROTECTED] - http://www.ascend.com
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