6.7

Table Of Contents
} else {
# Load the snponly.efi configuration of iPXE as initial bootloader
option dhcp6.bootfile-url "tftp://[xxxx:xxxx:xxxx:xxxx::xxxx]/snponly.efi";
}
When a machine attempts to PXE boot, the DHCP server provides an IP address and the location of the
snponly.efi (iPXE) binary file on the TFTP server. iPXE then asks the DHCP server for the next file to
load, and this time the server returns mboot.efi as the filename.
PXELINUX Configuration Files
You need a PXELINUX configuration file to boot the ESXi installer on a legacy BIOS system. The
configuration file defines the menu displayed to the target ESXi host as it boots up and contacts the TFTP
server for all SYSLINUX configurations, including PXELINUX and gPXELINUX.
This section gives general information about PXELINUX configuration files. For examples, see Sample
DHCP Configurations.
For syntax details, see the SYSLINUX web site at http://www.syslinux.org/.
Required Files
In the PXE configuration file, you must include paths to the following files:
n
mboot.c32 is the boot loader.
n
boot.cfg is the boot loader configuration file.
See About the boot.cfg File
File Name for the PXE Configuration File
For the file name of the PXE configuration file, select one of the following options:
n
01-mac_address_of_target_ESXi_host. For example, 01-23-45-67-89-0a-bc
n
The target ESXi host IP address in hexadecimal notation.
n
default
The initial boot file, pxelinux.0 or gpxelinux.0, tries to load a PXE configuration file in the following
order:
1 It tries with the MAC address of the target ESXi host, prefixed with its ARP type code, which is 01 for
Ethernet.
2 If that attempt fails, it tries with the hexadecimal notation of target ESXi system IP address.
3 Ultimately, it tries to load a file named default.
File Location for the PXE Configuration File
Save the file in /tftpboot/pxelinux.cfg/ on the TFTP server.
For example, you might save the file on the TFTP server at /tftpboot/pxelinux.cfg/01-00-21-5a-
ce-40-f6. The MAC address of the network adapter on the target ESXi host is 00-21-5a-ce-40-f6.
VMware ESXi Installation and Setup
VMware, Inc. 30