Hi newbie here...
Just recently started on an all around IT job for a small company. I noticed the router's IOS were way behind. Latest seems to be : Release 15.7.3M6 MD
Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.6(3)M, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2016 by Cisco Systems, Inc.
Compiled Thu 28-Jul-16 03:28 by prod_rel_team
ROM: System Bootstrap, Version 15.0(1r)M6, RELEASE SOFTWARE (fc1)
I tried to find online but seem cannot exactly find the instruction/prerequisites if I need to do a specific FW version prior.
Cross platform release notes has a link for Upgrading to a new Release but link seems to be broken.
Wonder if someone would be able to provide some guide or instructions for me to follow through and update our routers to latest IOS.
ISR 29XX reached end of sale.not life, life will be December 31, 2022.
Here is the link with detailed steps of upgrading the IOS. you can follow the same. also I have attached the PDF file.