How does the Ubuntu upgrade process work?
- by IDWMaster
How does Ubuntu upgrade seamlessly to a newer distribution, while the operating system is still running? I'm upgrading from 10.10 to 11.04, and I've upgraded several times before, and it's as simple as running update-manager -d and downloading and installing them, then rebooting.
How exactly does this work though? How is the upgrade manager able to update the operating system while it is still in use?