Hi,
I am trying to upgrade vCenter from 5.5 to 6.5 using command line but during precheck my script is showing IP instead FQDN and below warning when I check hostname I see FQDN.
I still no clue what is the reason.
Pre-upgrade check warning: 1. Title: Host name 192.168.xx.xx is not DNS
resolvable, but matches the machine certificates. If you do not configure a
valid DNS resolvable hostname mapping, then you might not be able to connect to
the vCSA afterwards
Can you resolve the VCSA's hostname correct from your PC in both ways?
Windows:
nslookup vcsa.example.com
nslookup 1.2.3.4
Linux:
dig vcsa.example.com +short
dig -x 1.2.3.4 +short
Issue resolved when on vCenter 5.5 I updated same system name again and regenerated certificates.