installing over a previous version

[emorrp1]

Firstly, you should do a fresh install. Upgrading is never without problems on any operating system (one reason why you don't see M$ releasing an upgrade tool). If you do insist on upgrading, then the safest way is to upgrade one release at a time, so you should first upgrade to elyssa: http://www.linuxmint.com/rel_elyssa.php ... structions and then to felicia: http://www.linuxmint.com/rel_felicia.php Note also that gloria will soon be released, so it may be worth holding back, backing up your data, waiting for the release, then doing a fresh-install of gloria.

[Aging Technogeek]

To install Felicia over Darnya just select Manual when the partitioning screen comes up. Click "Forward" and select "Create New Partition Table" . The partitioner will erase all existing partitions on the drive. Once this is done, you can set your partitions for Felicia as you wish.

[emorrp1]

Ah, my bad, I saw the word upgrade and immediately assumed you're trying to upgrade in place. If all you want to do is re-use (but erase) the previously created partition, then you can select manual partitioning, as Aging Technogeek points out, but then instead of creating a new partition table, just select the partition created for daryna, click edit partition, select the filesystem type from the dropdown (probably ext3), tick the format box, and select "/" as the mount point.