2TB could be a problem. The kernel for the Networkspace is rather old, and I don't know if it supports that size.
When the kernel supports it, it is fairly possible to clone your system. Connect both disks to a Linux system. Use
to identify your disks. I'll assume sdb the old disk, and sdc the new disk.
Copy the system (first, let's say, 2GiB) Make sure you are using the right disk identifiers
dd if=/dev/sdb of=/dev/sdc count=4000000
Then use fdisk to delete partition 2, (the data partition) and recreate it:
The exact keystrokes are:
d<enter>2<enter> (delete partition 2)
n<enter>p<enter>2<enter> (create new, primary, partition at slot 2)
<enter><enter> (default start- end endsector)
w<enter> (write changes and exit)
Create a filesystem on it:
mke2fs -j /dev/sdc2
Now you can put the new disk in the Networkspace, and it should work.