[ubuntu] Best Debian/Ubuntu partition scheme for workstation

Thread moved to Installations and Upgrades.

Why have two /home partitions and such a large /swap? You only need a /swap that big if you intend hibeating. Maybe you do. Two Gb is generally adequate, especially with that much RAM (some users don't use a /swap partition at all, I don't advise that).

Install one OS. When installing the other, choose 'Something Else' at the partitioning section. Mark the /swap you created in the first install to 'Use' and the /home to 'Use' but not to format.

If you have a separate /home partition, regardless of how you do it, there is no point whatever in have a 100Gb+ / partition. Why? A Ubuntu install will fit easily on 25Gb (I've never used more than a 15Gb partition myself but run a pretty slimmed down hybrid) as all your personal data - Video, Documents, Music, etc. - goes in /home. The OS goes in root and after install will probably take up less than 10Gb.

Make the / partitions 20-25Gb if you have a separate /home. I would be seriously rethinking your current plan in light of the info in this post.

PS: Keep in mind we are a Ubuntu forum so we can give most effective support for Ubuntu. If you want help with Debian, best to post a new thread on the Debian forum.

Good luck.