04 August 2009
Installing ESX 4 from USB Flash
The target server had a CD drive and I only had a DVD .iso file that was about 835Mb. I discovered that the server's BIOS would allow me to boot from a USB flash drive. I used unetbootin to burn the .iso file to my USB drive. Next, and this is the important part, I booted from the USB drive and pressed the Tab key when presented with the boot options for ESX. That then brings up the standard line of options to pass into the kernel. I appended askmedia to that line. The askmedia option allows one to specify that the install media is hosted and available elsewhere, for example, HTTP, FTP, NFS, or USB. Of course, I selected USB when prompted and the rest of the install proceeded automatically with no problems.