I want to roll-back from VMware ESXi 6.0 to version 5.5 - Is this a possibility and still able to keep the VM's intact?

I want to roll-back from VMware ESXi 6.0 to version 5.5 - Is this a possibility and still able to keep the VM's intact?

If possible I dont want to lose any VM's, etc.

Thank you,
HappT
TheGreatEye OfSauronAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
It is possible, ESXi installer upgrades have a rollback feature.

At ESXi BOOT, Press Shift-R together this will pop up a warning about rolling back, and list the version you can roll back to...

Press Shift-Y, and it will roll back to a previous version.

see also here this KB Article to support this

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1033604
TheGreatEye OfSauronAuthor Commented:
I will test it out after hours and let you know.

Ben
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I would encourage you to always have a full backup (not snapshot) of VMs, before any production change.
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TheGreatEye OfSauronAuthor Commented:
I dont suppose you have the steps/link to do a full backup in ESXi 6?

Again, I really appreciate all the help you have given myself and everyone here on EE.
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I meant you should backup your VMs.

You cannot backup the ESXi OS, not easily. It's quicker to install.

If you had installed to SD card to USB flash drive it is possible.

see my EE Articles

VMware ESX/ESXi Backup Guide

How to Backup an ESXi installation on an USB Flash Drive or SD card, for security or redundancy.

http://www.experts-exchange.com/articles/18442/12-commercial-software-backup-products-for-VMware-vSphere-Hypervisor-ESXi-you-should-be-evaluating-today.html

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TheGreatEye OfSauronAuthor Commented:
Oops, I typed too fast. I meant to type "full backup of VMs".
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Brian MurphyIT ArchitectCommented:
What are we really talking about here other than hosting platform?

Can you downgrade ESXi 6 to Hyper-V, no.  Why?  One is paravirtualization other is hardware.

That means VHD native format to VMDK.

Before you "downgrade", make sure you uninstall the VMWare Client for ESXi 6.

I guess it depends on whether or not you built using VMWare Workstation or in ESXi.  Regardless, unless you did a reverse image from physical to virtual you drastically reduce the driver hardware impact.

How did you build the VM?  Did you change the Network Driver?  Zero Lazy?  

Are we talking about static servers here are read-only servers with PVS on ESX or MCS.

It has been awhile but I would think that your biggest obstacle would be drivers and client version.  Before you run your "backup", uninstall the client.  Just uninstall it.  Shut it down.

Don't take any snaps, export it as backup if necessary.

Install ESX 5.5, import, install 5.5 client tools.

If you have taken snaps, clone it first?  Clone it, uninstall the tools, shut it down, copy it to the 5.5 datastore, import it?

Yes?
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