What is the root.disk file?
I have a 30 GB root.disk file sitting in /host/ubuntu/disks/root.disk, and I don't know what exactly it does. If all my OS info is stored in this file, does that mean I don't have Ubuntu installed as a standalone legitimate OS? What should I do if I want Ubuntu to be my permanent OS, is there a better way to install than WUBI?
Re: What is the root.disk file?
Wubi is a version that runs in one file root.disk inside the Windows NTFS partition and uses the Windows boot loader in the MBR to boot. But once loaded it becomes just like a standard Ubuntu. It is intended for a longer test than a liveCD and allows updates. But running inside the NTFS partition means it still relies on Windows.
Agostino: Wubi actually wasn’t designed to do long-term installations. The main aim was really to let people try out Ubuntu with confidence. Normally, users that start with Wubi tend to upgrade to a full installation to a dedicated partition at the next release cycle.
HOWTO: migrate wubi install to partition - bcbc