10-22-2018 06:40 AM - edited 03-08-2019 04:26 PM
Dear Community,
I have a 4510R+E that is utilizing 2x Sup 7E. The sups are currently running a very old IOS XE version 03.02.05.SG and ROM version 15.0(1r)SG5. When attempting to upgrade to 03.08.06E I noticed that the supervisors would not see eachother when upgrading the standby supervisor. This is most liley due to the fact that the other sup was still running the older software. After reading the release notes, the release notes for 3.8.6 state that I must upgrade the ROM to SG10 or better, however, when I pulled one of the Sups and booted the upgraded sup, it seemed to boot fine. My question is this: If the Sup seems to boot and operate fine on SG5, is there any risk to NOT upgrading the ROM to SG10? The reason I ask is because when attempting to donwload the SG10 ROM image, it said I needed an "Additional Entitlement" to do so.
Thanks.
Solved! Go to Solution.
10-24-2018 10:26 AM
Hi,
If the ROM is incompatible with the version of IOS you are trying to load, you will not be able to load it. I recommend upgrading the ROM ahead of time and be ready to upgrade the IOS.
HTH
10-22-2018 07:50 AM
Hi,
If the release notes is indicating that you need ROM: 15.1(1r)SG10, I would upgrade to that first before loading 3.8.6.
If you have a support contract getting "Additional Entitlement" should not be an issue.
HTH
10-22-2018 03:50 PM
10-24-2018 10:23 AM
Thank you Reza/Leo,
Im assuming if I gamble and dont upgrade the ROMmon it could potentially cause some system instability if I try running the new code on the old ROMmon version?
10-24-2018 10:26 AM
Hi,
If the ROM is incompatible with the version of IOS you are trying to load, you will not be able to load it. I recommend upgrading the ROM ahead of time and be ready to upgrade the IOS.
HTH
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