Recommended ways to update ESXi 5,5 to 6,0 U2

Hi all.

We have recently improved our vCenter to version 5.5 to 6.0 U2 U2.

We must now continue and improve all our ESXi hosts (also), and I have a question about this process:

Update Manager is recommended to upgrade the host? I'm asking this because, in my experience with OS updates (also Windows, etc.), it has always recommended to format and install a 'clean' operating system and does not perform an upgrade.

So, the upgrade to ESXi with Update Manager is equal to install a fresh ESXi?

If I spend with UNIFIED messaging, there are known issues and things that can go wrong in the future?

I already tried to put up-to-date with UM in our laboratory and a customer and everything seems to work perfectly, but I was always afraid that something could go wrong to happen in the future because it is not a new installation...

Thank you!

Hi Daniel,.

by using the VUM or any other option support (like esxcli) to do an upgrade on ESXi square is an option completely cared for and safe.

The way that ESXi is built it not to accumulate junk like other traditional operating systems. The code of the OS is in packages that are loaded into a virtual disk at boot time, and only data configuration (and newspapers if redirected) is persistent as soon as it recharges. It can even run without a State to boot via PXE and get configuration via vCenter host profiles (called "Autodeploy").

An upgrade will just update or replace the packages in the system while maintaining configuration data.

-Andreas

Tags: VMware

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