It may happen that you are hosting servers whose operating systems are not supported by Nutanix Move. In these rare cases, you will then have to proceed manually to migrate your virtual machines and you may be faced with post-migration boot issues.

For the demonstration, I chose a really old operating system: Ubuntu 12.04.

This version is not part of the list of systems supported by Nutanix Move for migration and the migration must therefore be done manually:

I have set up a manual migration plan for this virtual machine and I am proceeding with its migration which is going smoothly:

Unfortunately, when starting the virtual machine on the Nutanix AHV side, I encounter a boot problem:

To fix this issue, I shut down the virtual machine, log into my Prism Central, and navigate to the “Compute and Storage > Images” menu:

I click on “Add Image”, select “VM Disk” as the image source and select my Ubuntu12 VM:

I name the disk with an explicit name and click on “Next”:

I leave the image placement option in its default configuration and save:

My disk image will appear in the list of images available on my Nutanix cluster:

I then go back to the “Compute and Storage > VMs” menu and open the control panel of my virtual machine:

The part that interests us concerns the machine’s 2 disks with a virtual disk and a CD-ROM type reader:

The first step is to delete all disks by clicking on the trash icon:

Then, once the 2 disks are deleted, click on “Attach Disk”:

Configure the disk as follows:

• 1 – Type : Disk
• 2 – Operation : Clone From Image
• 3 – Image : select the disk you added initially
• 4 – Capacity : you can make it any size you want
• 5 – Bus Type : select PCI

Validate the new configuration of your virtual machine and boot it. The boot problem is now fixed, and the operating system boots perfectly fine:

Welcome to Ubuntu 12.04 LTS (GNU/Linux 3.2.0-23-generic x86_64)

Documentation: https://help.ubuntu.com/ System information as of Thu Sep 26 15:58:58 CEST 2024 System load: 0.0 Processes: 67
Usage of /: 3.5% of 37.68GB Users logged in: 1
Memory usage: 2% IP address for eth0: 192.168.2.137
Swap usage: 0% Graph this data and manage this system at https://landscape.canonical.com/

0 packages can be updated.
0 updates are security updates.

Your Ubuntu release is not supported anymore.
For upgrade information, please visit:
http://www.ubuntu.com/releaseendoflife

New release '14.04.6 LTS' available.
Run 'do-release-upgrade' to upgrade to it.

Last login: Thu Sep 26 15:58:05 2024
nutanix@ubuntu24hv:~$

The main problem encountered when migrating these obsolete systems is a boot issue. By following this method, you should be able to migrate all your virtual machines without any problems.