[Sunhelp] 64-bit OS

John Kennedy jkennedy at orent.com
Thu Feb 3 12:14:23 CST 2000


We have an Ultra2 that we would like to enable the 64-bit processing
on.  I got the following infodoc from sun
INFODOC ID: 18313

SYNOPSIS: Enabling Solaris 7 64 bit O/S
DETAIL DESCRIPTION:

Solaris 7 is loaded and has been running in 32-bit mode.  The flashprom 
banner has been turned off; therefore, there is no script assistance for
flashprom update.  We wish to enable 64-bit OS at boot time.

Here's how:

The write-disable jumper must be moved on the system board to enable the
flashprom update.  See the approprate documents to locate the jumper and
make it writable.  Boot the OS in single user mode:

   boot -sw

The flashprom update is architechure specific.  The update file is
located
in /usr/platform/`uname -i`/prom/`uname -i` in the form of an executable 
shell script.  (This can be derived from the /etc/init.d/flashprom
script.)
Execute this script to flash the prom:

   /sbin/sh /usr/platform/`uname -i`/lib/prom/`uname -i`

This updates the prom, however, the boot-file must be set to
kernel/sparcv9/unix to complete the 64-bit boot mode.  Set the OBP
environment variable using the eeprom command, viz
  
    eeprom boot-file=kernel/sparcv9/unix

and reboot.


I had already done the flashprom update thing but we have since wiped
and reloaded the system.  Do I need to redo the flashprom update to
enable this???
Thanks,
John






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