Hello all,
I am working on opening a TAC case on this, but I was also curious if anyone in the community has had any issues upgrading their ACI fabric to the current newest version 5.2(2f) ? I tried updating our lab ACI fabric from 4.2(3L) to 5.2(2f) yesterday evening and during the APIC upgrade portion, which is of course the first stage of the upgrade, 2 of the APIC's (APIC1 and APIC2) failed to upgrade with the status message Firmware version not compatible , and the 3rd APIC (APIC3) actually dropped from the cluster completely (still has not come back).
Before I started the upgrade, I had read the Upgrade/Downgrade Installation Guide for 5.2, as well as the official Compatibility Matrix, and a Direct Upgrade from 4.2(3) to 5.2(2) is the recommended path, so that's what I did.
Also, the Controller's storage was at 50% or below after copying the upgrade files to them, so they should've had plenty of space for the upgrade.
The only thing I wonder that may have caused an issue is that APIC's 1 and 3 are running the recommended CIMC firmware version of 4.1(2b), while APIC2 is running CIMC firmware version 4.0(2g) (I didn't catch that until after the upgrade, d'oh). But I'm not sure if 4.0(2g) would cause that big of an issue?
I'm thinking that may not have caused the issue, as the official error description from the Fault seems to indicate an issue with going to the Desired Version of 5.2(2f) :
Fault delegate: Controller 1 of fabric LAB-FABRIC with a hostname apic1 failed to upgrade to apic-5.2(2f). The upgrade has an upgrade status of Failed Due to Incompatible Desired Version - Failed to create FwHeader object.. The failure occured at the Updating Grub/efiboot Boot Manager stage of the install.
0xD2A6762E
