[[CPanel server|CPanel server]] [[WHMCS|WHMCS]] http://askubuntu.com/questions/57908/how-can-i-quickly-copy-a-gpt-partition-scheme-from-one-hard-drive-to-another Copy GPT /dev/sdX to /dev/sdY (be CAREFUL): sgdisk -R /dev/sdY /dev/sdX Randomize GUID: sgdisk -G /dev/sdY View details of raid device: mdadm --detail /dev/mdY Remove device if nesessary: mdadm /dev/md4 -r /dev/sdY4 Add the device again: mdadm /dev/md4 -a /dev/sdY4 Install Grub on the new disk: grub-install /dev/sdY