Sun Ultra 80 Workstation
 
Sun Enterprise 250 Server
 
Sun Ultra 10 Workstation
 
Sun Blade 1000 Workstation
 
Sun Blade 2000 Workstation
 
Sun Ultra 5 Workstation
 
Sun Ultra 60 Workstation
 
Sun Enterprise 450 Server
 

PLA-Support>Sun Systems>SPARC>Usx/Blade/Netra>SN-SPARC: USx
 
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Pre-SPARCstation[R], all SPARC Classics, SPARCserver[R], SPARCcenter[R],
and SPARCstations including:
SPARCstation 1
SPARCstation 2
SPARCstation 4
SPARCstation 5
SPARCstation 10
SPARCstation 20
For the following systems, the OBPs are Flash PROM upgradeable, but in
some cases it is necessary to remove the system covers and change the
jumper pins to write protected status. The table below outlines which
system has the jumper pins set to write enable by default and the ID
of the jumpers in question. In most cases the jumpers must be moved to 2+3
to set them to write enable.
To further check that the OBP can be upgraded it is also necessary
on systems (such as the E250/450) with lockable power switches
to ensure that the power key switch is NOT in the locked position. If the
power switch is left in the locked position the Flash PROM will be write
protected irrespective of write protect jumper settings.
NOTE that a plug-in card may be installed in the system which covers
the jumpers. This must be removed to access the jumpers and later
replaced.
System                 Jumper Location    Default Status*   Jumper
Ultra 1/2                   J2003         WP           move  to 2+3
Ultra 5/10                  JP2           WP          move  to 2+3
Ultra 30/60/220R/           J2703         WP          move  to 2+3
Netra 110x/Netra 112X
Ultra 80/420R/Netra140x     J3001         WP          move  to 2+3
Sun Blade 100/150           JP2           WP          move  to 2+3
Sun Blade 1000/2000         J2103         WP          move  to 2+3
E250                        J2704         WE           factory set
E450                        J3103         WE           factory set
Enterprise Server           P0601         WE           factory set
Netra T1 200                JP16          WE		factory set
Netra T1/CT400+800          J3302         WE           factory set
Sun Fire 880                J3303         WE           factory set
* WP = Write Protect, WE = Write Enable
It is essential that you use appropriate Electrostatic Discharge (ESD)
protective measures when carrying out work on the system hardware. This
includes the use of wrist straps, conductive pads and earthing leads.
Failure to follow appropriate ESD precautions may cause irreparable damage
to your hardware. This damage may be immediately evident or may cause your
hardware to fail some time after carrying out the work. Contact Sun for
advice before carrying out work on your hardware.
It is imperative to refer to the README of the patch when upgrading
the OBP. The example below concerns the excerpt for how to prepare
the system to upgrade the OBP  for the Ultra 1. The README also
contains further essential details for upgrading the OBP.
As root, exit the OS such that the system returns to the PROM''s "ok"
prompt:
# halt
ok
a) Power off the system.
** CAUTION **  Do not attempt to access any part of the system hardware
with the system power still on!
b) Remove the system top cover.  (If you are unsure how to do this then
consult your system "Installation Guide" or "Service Manual".)
c) Set J2003 to write enable at 2+3. Default is write protect at 1+2
Locate jumper J2003.  NOTE that a plug-in card may be installed in
the system which covers J2003 - if this is the case then you will
have to remove the plug-in card in order to access J2003.
Jumper J2003 provides a write enable/disable mechanism for the
Flash PROM.  J2003 normally connects pins 1+2, which causes the
Flash PROM to be write protected.  To enable patch installation,
write enable the Flash PROM by MOVING the J2003 jumper from pins 1+2
to pins 2+3.
**IMPORTANT NOTE**: If this jumper is NOT set to WRITE ENABLE, the
Flash update will fail.
(If you have difficulty locating J2003 then consult Figure 1-2 in the
"Sun Flash PROM Guide for Workstations and Workgroup Servers -
Standalone Version").
If a plug-in card was removed to access J2003 in the step above
then reinstall the card now.
d) Replace the system top cover.
It must be stated that the above is true for the mentioned systems only and
that newer systems may not follow the same criteria.

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