Released with the new version on Thursday was a upgrade package from ESX3i to ESX4i
After you have downloaded the package – proceed to update your host.
The example below is a VM installed with latest build of ESX3i (158874)
Open the VMware vSphere Host Update Utility (this will not work with the VI 2.5 client – it must be the vSphere 4.0 version) and select the host you would like to upgrade
Add the Upgrade file. The file is verified
Accept the EULA and enter Credentials
You will have to have put the host in Maintenance mode beforehand otherwise you will receive an error like this
Compatibility checks are run – in my case this did not work the firs time round because the VM only had 1GB of Ram allocated so I got this. Duncan has written an informative post on the matter and how to manipulate the amount of RAM if you need to.
So after adding additional RAM to the VM the compatibilty check passed
And The Upgrade Process Begins
And after waiting a while the Host is updated with the new version of ESX
A Few points to note:
- Do not close the Host Update Utility during the upgrade otherwise you will most probably mess up your host
- You of course need the minimum amount of memory (2GB) for the upgrade to run
- When the host comes back online it will be in evaluation mode – you will have to provide a license for it.(you have 60 days)
- Of course your host has to be in Maintenance Mode before you upgrade.
Happy Upgrading!
6 comments:
Thanks for the great post. My problem is that i am still using the VI 2.5 client. How do I upgrade to the vSphere 4.0 Host? Is this only a paid product? thanks.out
Thanks for the info - how do I upgrade on a host that only has a 32bit CPU? The upgrade tool objects to this at the compatibility check. Thanks
You can only install ESX4 on 64bit hardware. Sorry but you are stuck unless you have to find a 64 bit processor.
Good guid dude!, very usefull, thanks!
Just finished upgrading from 3.5.0 to 4.0U1 without any problems. The only thing I would say to anyone upgrading is to be patient with the vSphere host update utility and just leave it alone while it's doing the upgrade. Mine sat on 3% for about 8-10 minutes without moving. I refreshed the updater and it no longer showed the host version I was running and I started getting a little anxious....but eventually it continued along it's merry way. Just leave it be and let it do it's thang!
IU'm getting this error.. can any one help..
ERROR: Unsupported boot disk
The boot device layout on the host does not support upgrade.
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