Add support for custom vibs

[cbednarski]

I'm using PCI-e flash as my main "disk" and the ESXi installer doesn't detect it. Apparently I need to add some drivers but I haven't figured out exactly how to do this.

Info I have so far:

• Link to extra drivers that are purportedly compatible with the plextor PCI-e cards. http://vibsdepot.v-front.de/wiki/index.php/Sata-xahci
• Link to a walkthrough of how to customize the ESXi boot image for an OSX image. http://www.virtuallyghetto.com/2014/09/how-to-build-custom-esxi-iso-for-apple-mac-mini.html

Still guessing at this point but it looks like it involves the following:

1. Modify BOOT.CFG in the boot image so it includes an extra .tgz file
2. That .tgz file should include the offline bundle contents in some format
3. Maybe this format: http://www.ntpro.nl/blog/archives/1602-Injecting-drivers-into-the-ESXI-installer.html

There may be a simple way to include all the files in ./bundles in the ISO and also update BOOT.CFG to look at them.

[cbednarski]

This one also seems worth re-reading, though maybe outdated: http://www.ntpro.nl/blog/archives/1602-Injecting-drivers-into-the-ESXI-installer.html

[cbednarski]

I ended up using the ESXi customer script to customize the ISO. With this workflow you run the customizer, then rename the output ISO to esxi.iso and continue with the makefile. Not ideal, particularly since the optimizer runs on Windows, but it works.