For example: If you hover your mouse over the filename, you will see some extra information: Above you can see the file name and MD5 checksum.
The checksum can be used to check if the file that you downloaded is the same or has changed. Once you downloaded the IOS image, check if you have enough space left on your flash memory: R1#show flash: -#- --length-- -----date/time------ path 1 1119 Sep 29 2015 r1-r2-r32 1184 Dec 3 2014 R1-R2-ASA1-ASA23 1125 Dec 23 2014 ASA1-R1-R2-R35 76 Jul 17 2014 System Volume Information/Indexer Volume Guid 6 1060 Aug 11 2015 7 1213 Sep 30 2015 8 67926080 Apr 2 2015 c2800nm-adventerprisek9-mz.151-4.
In this environment they were called PRE4 and PRE5, each type requires it’s own image.
Also the linecards required a file specific to the routing engine.
Many of the routers have redundant routing engines so the images need to be copied onto standby disks as well as the primary disks.
The steps required to complete the upgrade looked like this: If you are completely new to Ansible you might want to learn some basics, but it should still be quite easy to follow along.
Cisco IOS devices typically use their flash memory to store the IOS image.