VMware has updated their ESXi platform again, so we're now one step beyond the 6.5U1 upgrade. It comprises mostly with VSAN improvements and a set of patches for kernel forking issues. After my challenges with updating to VMware ESXi 6.5U1, it's nice to see an update work correctly the first time.
esxcli network firewall ruleset set -e true -r httpClient esxcli software profile update -p ESXi-6.5.0-20171004001-standard -d https://hostupdate.vmware.com/software/VUM/PRODUCTION/main/vmw-depot-index.xml esxcli network firewall ruleset set -e false -r httpClient
The first line allows the internal HTTP Client to reach the outside world through the firewall. The second line downloads a patch for the tools-light.VIB (and maybe a few others). The updates for the latest ESXi are then downloaded and applied. The last line closes the internal client to the network.
You can monitor the update process through the Web Console by selecting the
/var/log/esxupdate.log file in the Log Viewer, (host|Monitor|Logs).
Don't forget to