05-29-2012 07:03 AM - edited 03-03-2019 06:36 AM
Dears,
I have a cisco 2821 router configured as a CME version 7.1.
Now I want to upgrade the IOS to version 15 to get a CME version 8.6 but I faced a problem that the flash of the 2821 is 64MB and the IOS version 15 required flash 128MB.
I tried to replace this flash with another 128MB installed on Cisco 2811 router but when I installed the 128MB flash on the 2821 CME the 2821 didn't boot from it.
Please can you support me in this issue.
Thanks,
05-29-2012 10:21 AM
Connect PC with serial to console port to see what happens with the boot process.
05-29-2012 01:37 PM
I did this on the 2821 router when added the new flash 128MB is enter to rommon.
it didn't boot from the flash.
05-29-2012 02:45 PM
Console into the router and reboot the router. Post the entire bootup process.
05-31-2012 12:23 AM
Please I need your advice:-
If I have router with 64MB flash and another with 128MB so can I swap the flash between the two routers??
Router 64MB upgrade to 128MB
Router 128MB downgrade to 64MB
It is possibe??????
Thanks,
06-05-2012 05:30 AM
I doubt there would be any issue using a Flash from one in the other. I have done that a thousand of times. Anyway, make sure you format that flash and copy all IOS and CME files (templates, ephone firmware,...) before using it. I have recently migrated from CME 4.1 to CUCME 8.5 without an isue. Just remember to look for changes in IOS commands, phone upgrade process,...etc (for example, new CUCME ios has a great part of the CME files embeded and also features new VoIP security features enabled by default).
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