Specifications

Table Of Contents
virtualdisk
Not supported in ESXi 5.x.
zerombr
Not supported in ESXi 5.x.
%firstboot
--level option not supported in ESXi 5.x.
%packages
Not supported in ESXi 5.x.
Disk Device Names
The install, upgrade, and installorupgrade installation script commands require the use of disk device
names.
Table 76. Disk Device Names
Format Examples Description
VML vml.00025261 The device name as reported by
the vmkernel
MPX mpx.vmhba0:C0:T0:L0 The device name
NOTE When you perform a scripted upgrade from ESX 4.x to ESXi 5.x, the MPX and VML disk names
change, which might cause the upgrade to fail. To avoid this problem, use Network Address Authority
Identifiers (NAA IDs) for the disk device instead of MPX and VML disk names.
After you obtain the NAA ID or VML number, typically from the BIOS of the storage adapter, you can
modify the kickstart file (ks.cfg) for each host to identify the disk device by the NAA ID or VML number.
Some devices do not provide an NAA ID. In these circumstances, an MPX Identifier is generated by ESXi to
represent the LUN or disk. The identifier takes a form similar to the canonical name of previous versions of
ESXi with the mpx. prefix. This identifier can be used exactly as the NAA ID. See Knowledge Base article
1014953.
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 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
kernel=FILEPATH
kernelopt=STRING
modules=FILEPATH1 --- FILEPATH2... --- FILEPATHn
# Any other line must remain unchanged.
The commands in boot.cfg configure the boot loader.
Table 77. Commands in boot.cfg .
Command Description
title=STRING Sets the boot loader title to STRING.
kernel=FILEPATH Sets the kernel path to FILEPATH.
Chapter 7 Upgrading and Migrating Your Hosts
VMware, Inc. 193