While there may be a Santa Claus Virginia, and he brought you ESXi for free, he didn’t bring you Serial Port Access. This isn’t because after several hundreds of years of delivering toys to little girls and boy’s has got him scrooged out, it’s because ESXi has a footprint that is all of 32mb in size, and some things had to go. VMware is continually working with partners and solutions providers to provide other means of accessing that which you’d typically use serial for anyways.
For further reading, here is the KB article that backs that up.
No longer true with the latest EXSi. I was able to use both the built in motherboard hardware serial port as well as a USB to serial dongle.
Excellent. I’ll test and update the post.