On the above unsupported distributions is still possible to install GitLab yourself.
Please see the [manual installation guide](https://github.com/gitlabhq/gitlabhq/blob/master/doc/install/installation.md) and the [unofficial installation guides](https://github.com/gitlabhq/gitlab-public-wiki/wiki/Unofficial-Installation-Guides) on the public wiki for more information.
You will either need to configure 512MB or 1.5GB of swap space.
With 512MB of swap space you must configure only one unicorn worker.
With one unicorn worker only git over ssh access will work because the git over http access requires two running workers (one worker to receive the user request and one worker for the authorization check).
If you use SSD storage and configure 1.5GB of swap space you can use two Unicorn workers, this will allow http access but it will still be slow.
Notice: The 25 workers of Sidekiq will show up as separate processes in your process overview (such as top or htop) but they share the same RAM allocation since Sidekiq is a multithreaded application.
The necessary hard drive space largely depends on the size of the repos you want to store in GitLab. But as a *rule of thumb* you should have at least twice as much free space as your all repos combined take up. You need twice the storage because [GitLab satellites](structure.md) contain an extra copy of each repo.
If you want to be flexible about growing your hard drive space in the future consider mounting it using LVM so you can add more hard drives when you need them.
Apart from a local hard drive you can also mount a volume that supports the network file system (NFS) protocol. This volume might be located on a file server, a network attached storage (NAS) device, a storage area network (SAN) or on an Amazon Web Services (AWS) Elastic Block Store (EBS) volume.
If you have enough RAM memory and a recent CPU the speed of GitLab is mainly limited by hard drive seek times. Having a fast drive (7200 RPM and up) or a solid state drive (SSD) will improve the responsiveness of GitLab.