VMware ESX 4.0 only installs and runs on servers with 64bit x86 CPUs. 32bit systems are no longer supported.
Make sure Intel VT is enabled in the host's BIOS.
If you are installing to the local disks and SAN is connected to the ESX host, detach the fiber before continuing with the installation.
Note: Do not disable HBA cards in the BIOS.
The /, swap, and all the optional partitions are stored on a virtual disk called esxconsole-
Note: For /var/log, VMware recommends a separate partition to prevent unexpected disk space constraints due to extensive logging.
Based on VMware KB 1009080