Upgrading ESXi Host without VSpehere

Step 1: The patch download portal first 
Step 2: Download the ZIP file and upload it to a datastore 
Step 3:  Bring the host into the maintenance mode
Step 4: Enable SHH
Step 5: Then connect via SSH and run this command:

esxcli software vib install -d /vmfs/volumes/datastore1/patch-directory/UPDATENAME.zip

Modify the File Path to reflect where you stored the update file.

It will output a bunch of text after a minute or so and say it was successful and needs a reboot.

Step 6: Reboot the host and leave the maintenance mode.

Step 7: Disable SSH

L1TF Warning

So after upgrading from ESXi 6.7 to ESXi 6.7 Update 3, I now get the warning about the L1TF Vulnerability. So some of you may also be seeing this for the first time depending on if your hardware is affected and you are updating from a prior version that didn’t have this warning integrated yet.