I have downloaded the 2 files for this upgrade and combined them into a single file as per the readme for 7.1(2a)Su1:
I created a dvd with a copy of this file on it and checked the MD5 from the dvd. It checks out. When I put the DVD in my Publisher and try to start the upgrade it shows the name of the file but then when I click next it complains that an unknown error occured with the disk. So I don't know if I have a bad DVD or I did not make the DVD correctly. There seems to be confusion about what to put on the DVD. Posts here say you just need to copy the file to a DVD - ie a data DVD and if you make an DVD with all the files on it - that won't work. The instructions in the Software Upgrade Procedure from the OS Admin Guide say it has to be an iso image (which I think means all the files get created from the .iso file). I did actually order the upgrade via PUT but they sent 7.1(3a) which is not compatible with the IOS version I have on my gateways. I noted that the disk they sent has all the files and folders on it - not the .iso file. This is very frustrating - especially on Christmas eve !