You can do this on the cli (in 8.3) via

xe vm-snapshot new-name-label=newname uuid=vmUUID ignore-vdi-uuids=uuid1,uuid2,uuid3

It is currently not possible in Xen-Orchestra, see
https://xcp-ng.org/forum/topic/3607/snapshot-backup-exclude-additional-mounted-disk/8?_=1680267126156

Hello fellow xcp-ng users. After a few weeks of getting to know the system and testing stuff out I'd like to share something I looked for but couldn't really find:

An easy way to get Xen-Orchestra running from just the xe cli.
https://github.com/HPPinata/Xen-Orchestra-Install

So I just made my own. This script creates a VM running openSUSE MicroOS to start a decent docker image I found, bringing up Xen-Orchestra commuity edition completely automatically from a newly installed XCP-ng Server without any other management tools.

Due to choosing a transactional OS as the container host it should be virtually manitenance free and update automatically (though to apply those updates a reboot of the VM is required).

All of the configuration happens on the Hypervisor for extra flexibility, but this requires the script to install (and later remove) a few unofficial packages: (genisoimage, qemu-img and pv).
I made this choice to allow for easier customisation (and troubleshooting while creating this) compared to a baked VHD file (like the only other cli to orchestra script i could find uses) but this definitely is not an officially supported use case.

The script works, but currently isn't doing any error checking and makes a few assumptions:

• The Host is connected to the Internet
• A local ISO SR can be created at /var/opt/xen/ISO_Store
• A VM with 1GiB-4GiB of Ram and a 32GiB disk (on the default SR) can be created
• The VM can connect to the default bridge network (xenbr0)
• An IP is assigned to the VM by a DHCP server in your network
• The initial configuration inside the MicroOS VM happens in 5 minutes or less (ca. 3 min. on my 50 MBit connection, can be changed in the script)

Feedback is welcome, though this is a side project and it currently has all the functionality I need/wanted it to have.
Greetings from Germany and a huge thanks to the developers, definitely get XOA if you can afford it (or use XCP-ng for anything critical) and have a good day.