I will be installing a secondary SUP720 in a 6509-E and will be upgrading the IOS on the existing SUP which is on 122-18.SXF6. I've read that this release has passed End of Critical Maintenance earlier this you. I thinking of upgrading the IOS to 12.2.33-SXJ1(ED) or 12.2.33-SXI8(ED) (possible more stable), but i'm not sure if i need any step upgrades from the current version. The SUP meets the required hardware specs and I will also be upgrading the ROMMON to 12.2(17r)SX7 first.
I have alot of experience upgrading IOS on routers and switches, but i just need to now if there are any gotchas that i need to know for the upgrade on the SUP.
The other issue is i don't believe the current IOS has been installed, are there any issue running on an IOS not installed.
Patching is not available since the system is not running from an installed image. To install please use the "install file" command
Looks forward to any tips/tricks or docos people can provide.
Modular is still available for 12.2(33)SXI but personally I would avoid it and simply use the standard image. Also as you said I would load 12.2(33)SXI8 for now. Here is a quasi ancient document that may help if you need specifics:
Standard image = mz
Modular = vz
Also, you're jumping a lot of throttles from SXF to SXI, some commands may have been changed or deprecated. If you have a lab device upgrade that first and see if all of the commands make it. If you do not, make sure you have a copy of the latest running config (you should do this before any major change anyways) before you upgrade the IOS. You may need to edit some commands or features and reapply those sections to get everything back. This is the only potential speed bump that comes to mind.
The Sup720 will have enough memory by default. Keep the old IOS on the compact flash or bootflash if at all possible, just in case you need to roll back. Then you simply change the boot statement and reload.
Good luck and I hope that helps,