You may find yourself in the position where you need to add a machine into a pool, a new host that is, and it's patching is well behind. Thankfully there is a relatively straightforward way to do this. You will need to have already downloaded and extracted the required files. On a computer with XenCentre installed run the following commands (assuming default install and Windows 7 / 8) Open a command prompt Win+r, then type cmd (or go to Start -> Run -> cmd and return) cd "C:\Program Files (x86)\Citrix\XenCenter" From here run: xe patch-upload -s server-ip -u root -pw secret-password file-name=c:\ username\Downloads\XS62ESP1\XS62ESP1.xupdate and hit return. Make sure the items in italics is replaced with your actual details. Once this finished, you'll get a long string of characters appear and that's the patch UUID. Normally when updating a pool we make note of that, but I've found another way that works just as well. Download puTTY -
Angus Beath's Blog - a jotting down of thoughts, handy to remember things and general BS about the world.