ESXi Installer vSphere 5.5 U2 don't show me upgrade option

Boot Host (HP DL380 G8) from CD, ISO image HP Cutomized, 12-2014
I had problems: error 39 (folder not empty at 24%) or incompatibility vib update.
I need to update esxi 5.1 to 5.5 U2, when i try remove local.tgz (as found at VMware KN) next boot from cd the install don't show me upgrade host and preserve vmfs.
I try many many solutions but ...  With a boot from ESXi 5.1 U3 same result. No Upgrade option.

How to solve this problem?

Or: What happens wenn I take "install and preserve vmfs" option? I stopp this later at the question, that the installer will repartition! In the same RAID Array as the 5.1 installation there are lots of vm. Are this save?
Or: new installation to a USB Device, or SD Card? But how to make the new Installation on the other device is booting?
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Dawid FusekVirtualization Expert, Sr B&R, Storage SpecialistCommented:

1. installing ESXi on the same volume that VMFS and VMs/data resists is very bad option
2. if you have problem with update of such installation with HP Customized ESXi installer, we rather can't help with do it fine
3. you should install new ESXi on the USB stick or SD card (similar solution, you choose what is better for you)
4. if you choose "install and preserve vmfs" option while upgrade installer will try to preserve (not destroy) your VMFS and VMs/data resist on this datastore, but in your case it may not happens and may destroy ESXi installation and even sometimes may destroy datastore VMs/data, so it's not a good idea to do that, ONLY if YOU HAVE ACTUAL BACKUP of that DATASTORE!!!

So finally, You should install new ESXi on the USB stick or SD card, it needs 4GB or bigger, and choosing a boot order you should change in the server BIOS.


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Aaron TomoskyDirector of Solutions ConsultingCommented:
what version are you on now? Why not just upgrade using one of the supported methods?
Perform a new installation on a usb drive is highly recommended. It will provide an option as long as it is detected from the BIOS. There is little benefit to use a larger device because any space beyond the installation will be unused.

Keep in mind that once ESXi is loaded, it runs from memory and there minimal I/O to the boot device.

new installation to a USB Device, or SD Card? But how to make the new Installation on the other device is booting?
perolinAuthor Commented:
Accepted as Workaround, but not as Solution.
It's still strange, that the ESX Installer will not show me the update option. The first run it was ok, but with Error ...
This night I will install it on SD Card. Hope, that it works. 2 Years ago, the install on SD was fine, but ESXi 5.0 was not able to start vom LUN 0!  Else I take a USB Stick. And of Cores, I hope to retrieve my vmfs store untouched.
Dawid FusekVirtualization Expert, Sr B&R, Storage SpecialistCommented:
If your esxi installation is somehow broken then installer may not see it as an installation for upgrade, even if that installation working ok as a esxi host.

Good you choose install esxi on a sd card, it's fully supported solution and working well.

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