upgrade esx manually

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1002368

Upgrading an ESX host using esxupdate
Details
This article describes how to use esxupdate to upgrade an ESX host via the command line.

Solution
Before updating ESX:
•Check the /var/cache folder for any packages that have been left over from previous upgrades.
•You should have at least enough disk space to download the required files, as well as enough space to apply the package. A good rule is to have at least double the space of the largest package file you are applying.
•To check how much disk space you have remaining, execute:

df -h

To upgrade an ESX host from the command line using the esxupdate command:

1.Download the ESX update file from VMware Downloads.

Note: Ensure that you have downloaded the correct tar or zip file before proceeding.

2.Login to the ESX host as the root user via SSH.
3.Copy or FTP the ESX update file to the /tmp directory on the ESX host.
4.Prepare the ESX update file for execution:
a.For ESX 3.x, extract the file by executing:

tar -zxvf .tar.gz

b.For ESX 4.x, leave the ESX update file compressed.

5.Execute the ESX update:
a.For ESX 3.x, execute:

esxupdate -n

b.For ESX 4.x, execute:

esxupdate --bundle=zip update

6.Reboot the ESX host.
7.Login to the ESX host.
8.Verify that ESX is upgraded by executing:

vmware -v