Summary: Upgrade SS5->SS20

From: Karl Pottie (karl@ichi.vl-brabant.be)
Date: Thu May 02 1996 - 09:36:12 CDT


 
> If we upgrade a Sparc 5 to a Sparc 20 by swapping
> the motherboard, do we need to re-install Solaris
> from scratch or will the Sparc 20 boot from the system
> disk installed for the Sparc 5 ? Do we need to take
> any special precautions ?

Most people say this is possible.

Things to consider are:

1 licensing - bound to hostid
2 ethers file - if used by rarpd and/or NIS/NIS+ have to be updated
3 swap size - nothing to change if RAM size unchanged

Two techniques to upgrade the machine:

----
  1. swapped in the 20, using the OS disk from the SPARC 5.
  2. boot single user to the solaris cd. (boot cdrom -sw)
  3. mount /dev/dsk/c0t3d0s0 /a   (assuming the boot disk is target 3)
  4. cd /tmp/dev; tar cvfp - . | (cd /a/dev; tar xvfp -)
  5. cd /tmp/devices; tar cvfp - . | (cd /a/devices; tar xvfp -)
  6. cd /tmp/root/etc
  7. cp path_to_inst /a/etc/path_to_inst
  8. halt
  9. boot -r
----
What you need to do is change the board, boot from cdrom and mount the disk
(say on /a).  Remove the contents of the /a/dev and /a/devices
directories.  Copy /etc/path_to_inst to /a/etc/path_to_inst.  Then do:

drvconfig -p /a/etc/path_to_inst -r /a devlinks -r /a disks -r /a ----



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