6.7

Table Of Contents
n
Target host with a hardware configuration that is supported for your version of ESXi. See the VMware
Compatibility Guide.
n
Network adapter with PXE support on the target ESXi host.
n
DHCP server configured for PXE booting. See Sample DHCP Configurations.
n
TFTP server.
n
Network security policies to allow TFTP traffic (UDP port 69).
n
For legacy BIOS, you can use only IPv4 networking. For UEFI PXE boot, you can use IPv4 or IPv6
networking.
n
(Optional) Installation script (kickstart file).
n
Use a native VLAN in most cases. If you want to specify the VLAN ID to be used with PXE booting,
check that your NIC supports VLAN ID specification.
Verify that your environment also meets the following prerequisites required for PXE boot using a Web
Server:
n
Verify that the HTTP Web server is accessible by your target ESXi hosts.
n
(UEFI) Obtain iPXE, available at http://ipxe.org.
n
(Legacy BIOS) Obtain version 3.86 of the SYSLINUX package, available from
https://www.kernel.org/pub/linux/utils/boot/syslinux/.
Procedure
1 Configure the DHCP server for HTTP boot.
2 (UEFI only) Obtain and configure iPXE:
a Obtain the iPXE source code, as described at http://ipxe.org/download.
b Follow the instructions on that page, but use the following make command:
make bin-x86_64-efi/snponly.efi
c Copy the resulting file snponly.efi to /tftpboot directory on your TFTP server.
3 (UEFI only) Copy the file efi/boot/bootx64.efi from the ESXi installer ISO image
to /tftpboot/mboot.efi on your TFTP server.
Note Newer versions of mboot.efi can generally boot older versions of ESXi, but older versions of
mboot.efi might be unable to boot newer versions of ESXi. If you plan to configure different hosts to
boot different versions of the ESXi installer, use the mboot.efi from the newest version.
VMware ESXi Upgrade
VMware, Inc. 54