Steps to follow to patch ESXi server – not that easy to figure out from looking at the vmware site!
- Finding Patches
- Upload to datastore
- Set ESXi server in maintenance mode
- SSH into ESXi
- Refer to http://www.chriscolotti.us/vmware/vsphere/how-to-patch-vsphere-5-esxi-without-update-manager/ and enter command below
esxcli software vib install -d /vmfs/volumes/[DATASTORE]/[PATCH_FILE].zip
Note:command for VMware vSphere CLI uses https protocol, not http as per doc and code example for tool