After struggling a lot with Xenserver 6.2 and DSM (im not much of a linux user and i couldnt follow the command line instruccions in the post)
I manage to make it work!!
I was determined to test the HA feature in the DSM, and for that i needed 2 VMs with DSM, 1 in each XenServer in my lab enviroment. (2 Xenservers 6.2 with High Avaiavility). What i really like from Xenserver over ESXi is that for this HA feature in an ESXi enviroment i needed and extra VM o PC for the vCenter, and for XenCenter theres no need. But to the HA to be full, i wanted a HA storage too, without the need of extra phisical hardware, so i desperated wanted to DSM to work in a XenServer.
Said that, here is what i did (maybe is not the better way but it worked):
1. Download gnoboot_105_xpenology_5.0-4458_bootloader_X64_by_Poechi.iso from the http://xpenology.nl site 2. Download the DSM 5.0-4458 .pat file from Synology 3. Create a VM in XenServer, with a 100GB Disk, 512 Mb RAM, 1 vCore. DO NOT start the VM yet! 4. Mount the ISO Image in the VM's CDRom and configure CDRom as the first boot device 5. Start the VM 6. Choose the first option (not the option to install/upgrade) and everything should be looking good 7. Use Synology Assisstant to search for the new VM DSM 8. After finding the new VM DSM, right click and connect (it would open a browser to the IP of the DSM) or just use the Assitant's native Installation 9. In the installation menu DSM should see a vDisk connected (usually in that step appears that no disk was connected) 10. Follow the wizard to install the DSM, and everything should work like a charm 11. Reboot and let the boot process of Gnoboot to start with the first option 12. Continue DSM configuration The only thing that might not be perfect is that in the VM should be always mounted the ISO image in the CDRom, but honestly, at that point for me it didnt matter.
I hope this would help someone.
PS=Excuse my english