Upgrading XCP-NG

Upgrade XCP Remotely

First you need to have an XCP ISO Image mounted somewhere on an HTTP accessable server!

1.get uuid of host

[root@xen-to-xcp-test2 ~]# xe host-list 
uuid ( RO)                : 7b2ebfd3-f33a-4025-b757-e91d26a46242
         name-label ( RW): xen-to-xcp-test1
   name-description ( RW): Default install


uuid ( RO)                : 750d9176-6468-4a08-8647-77a64c09093e
         name-label ( RW): xen-to-xcp-test2
   name-description ( RW): Default install

1. Test URL access
   xe host-call-plugin plugin=prepare_host_upgrade.py host-uuid=750d9176-6468-4a08-8647-77a64c09093e fn=testUrl args:url=http://<ip-address>/xcp-ng/7.4.1/
   Output must be true
2. Run the Upgrade/prepare function
   xe host-call-plugin plugin=prepare_host_upgrade.py host-uuid=750d9176-6468-4a08-8647-77a64c09093e fn=main args:url=http://<ip-address>/xcp-ng/7.4.1/
   Output should be true as well

This adds a temporary entry to grub bootloader which will automatically invoked on next reboot. This runs the upgrade to XCP-NG, it will do the normal backup to secondary partition as well.

It’s good to have some remote KVM access to the machine to watch the output.