> 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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