Hello,
I have two HP Gen8 servers that are not in the compatibility matrix for anything newer than ESXi 6.5. I downloaded both an offline bundle zip (HPE-ESXi-6.5.0-Update2-preGen9-650.U2.9.8.3) and also an ISO as well.
First in vSphere 6.7 under Update Mnager > ESX images, I tried to upload the .ISO file VMware-ESXi-6.5.0-Update3-14990892-HPE-preGen9-650.U3.9.6.10.1-Dec2019.iso, and it uploads ok but then I get an error message in the recent tasks list that says "The uploaded upgrade package cannot be used with VMware vSphere Update Manager". It does not say why and there are no further details.
So then I thought maybe I can use the zip file, so I uploaded the offline zip file in Update Manager under the updates tab. It show sup there now at the very end of page 8 of all of my updates. I created a baseline called 6.5 upgrade, and found that patch and added it in. I attached this baseline to one of the HP servers that needs it and when I do a compliance check its not coming up as non-compliant. In short, VUM doesn't think the 6.0 ESXi needs it.
Whats the best way to upgrade two ESXi 6.0 to 6.5 under vCenter 6.7?