installing OS over itself

[Colin Law]

On 22 January 2013 02:06, Robert Holtzman <holtzm at cox.net> wrote:
> IIRC at one time it was possible to install Ubuntu over a previously
> installed one. Still possible? If so what is the effect on installed
> apps? I've read a few horror stories about the new install deleting the
> core files, leaving an unbootable computer.

Further to Nils' reply, if you wish to avoid having to re-install apps
then you should upgrade Ubuntu rather than re-install.

Colin