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<font face="Courier New, Courier, monospace">2. Though so far a I have few complaints about Ubuntu, should I
decide to switch to Debian can I install Debian over Ubuntu such
that Debian does not </font><font face="DejaVu Sans"><font face="Courier New, Courier, monospace">reformat the hard disk
thereby erasing all that I've done?</font></font><br></div></blockquote><div><br>Do you mean convert your current Ubuntu install into Debian without formatting? No, you cannot do this. While installing Debian, you could tell the partition manager to leave you Ubuntu partition unformatted and install Debian to another partition. This way, you will still have you Ubuntu partition data. But you will have to install all the non-default software that you want in Debian.<br>
<br>Best Regards,<br>Rigved Rakshit<br></div></div>