upgrading cisco IOS from 15.0 to 15.1

siukai.kwok · ‎01-16-2011

Dear all,

I have some question related to the new universal IOS license. We want to upgrade the IOS from 15.0(1) to 15.1 for some reason. Here is the output of my router's "show ver":

Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.0(1)M4, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Compiled Thu 28-Oct-10 18:32 by prod_rel_team

ROM: System Bootstrap, Version 15.0(1r)M9, RELEASE SOFTWARE

Technology Package License Information for Module:'c2900'

----------------------------------------------------------------

Technology Technology-package Technology-package

Current Type Next reboot

-----------------------------------------------------------------

ipbase ipbasek9 Permanent ipbasek9

security None None None

uc uck9 Permanent uck9

data None None None

We have enabled the technology pacakge license "uc" in the previous version, would it be loss after the upgrade?

Thanks all.

Leo Laohoo · ‎01-16-2011

We have enabled the technology pacakge license "uc" in the previous version, would it be loss after the upgrade?

No.

Reza Sharifi · ‎01-16-2011

No, once the license is enabled, it applies to any new image you install

HTH

Reza.

cbrasolin · ‎04-18-2012

What do you mean with "it applies to any new image you install"?

Are minor release upgrade permitted? example 15.0 to 15.1 or to 15.2?

glen.grant · ‎04-18-2012

I believe the license is kept in a separate file so it knows what features to load on the new code. Unless you changed the license is should be the same.

Leo Laohoo · ‎04-18-2012

Unlike the older ISR, the new ISR G2s have a "license" file. As you also can see the IOS are all "universal". Just like proggies nowadays, you just download one file and apply the license key to enable which feature set you want. Now this license key generates a file which is kept in in a different place. So you can upgrade the IOS to whatever version you want and the license file is un-changed.