You can use remote management applications for installing ESX or for remote management of hosts.

Supported Remote Management Server Models and Firmware Versions lists the remote management firmware versions that are supported for installing ESX  4.1 remotely.

Supported Remote Management Server Models and Firmware Versions

Remote Controller Make and Model

Firmware Version

Java

ActiveX

DRAC 5

1.4

Not applicable

1.4.2_19

1.45 (08.10.06)

2.1,0,14

1.6.0.50

1.40 (08.08.22)

2,1,0,14

1.6.0_11

1.20 (07.03.02)

1.4.2_06

2,1,0,13

1.33

1.6.0_07

2,1,0,14

1.32 (07.12.22)

1.4.2_13

2,1,0,13

1.0 (06.05.12)

1.4.2_13

2,1,0,13

1.32

1.6.0_11

2,1,0,14

1.2

1.6.0_11

2,1,0,14

1.45 (09.01.16)

1.6.0_11

2,1,0,14

1.3

1.6.0_11

2,1,0,14

1.33

1.6.0_11

2,1,0,13

DRAC 4

1.7

1.4.2_06

2,1,0,14

ILO

.26

1.6.0_11

2,1,0,14

1.7

1.4.2_19

Not applicable

ILO2

1.91 (07/26/2009)

1.6.0_07

2,1,0,14

1.29 (2/28/2007)

1.4.2_13

Not applicable

RSA

1.09

1.6.0_11

2,1,0,14

1.06

1.6.0_11

2,1,0,14