7.0

Table Of Contents
For more information on storage device names, see
Storage Device Names and Identifiers
in the
vSphere Storage
documentation.
About the boot.cfg File
The boot loader configuration file boot.cfg specifies the kernel, the kernel options, and the boot
modules that the mboot.c32 or mboot.efi boot loader uses in an ESXi installation.
The boot.cfg file is provided in the ESXi installer. You can modify the kernelopt line of the
boot.cfg file to specify the location of an installation script or to pass other boot options.
The boot.cfg file has the following syntax:
# boot.cfg -- mboot configuration file
#
# Any line preceded with '#' is a comment.
title=STRING
prefix=DIRPATH
kernel=FILEPATH
kernelopt=STRING
modules=FILEPATH1 --- FILEPATH2... --- FILEPATHn
# Any other line must remain unchanged.
The commands in boot.cfg configure the boot loader.
Table 5-15. Commands in
boot.cfg.
Command Description
title=STRING Sets the boot loader title to STRING.
prefix=STRING (Optional) AddsDIRPATH/ in front of every FILEPATH in the
kernel= and modules= commands that do not already start
with / or with http://.
kernel=FILEPATH Sets the kernel path to FILEPATH.
kernelopt=STRING Appends STRING to the kernel boot options.
modules=FILEPATH1 --- FILEPATH2... --- FILEPATHn Lists the modules to be loaded, separated by three
hyphens (---).
See Create an Installer ISO Image with a Custom Installation or Upgrade Script and Network
Booting the ESXi Installer.
Install or Upgrade ESXi from a CD or DVD by Using a Script
You can install or upgrade ESXi from a CD-ROM or DVD-ROM drive by using a script that specifies
the installation or upgrade options.
VMware ESXi Installation and Setup
VMware, Inc. 93