bugs/#11021 Add custom fstab option and manage /tmp mount point
- add custom fstab option which need a custom fstab file included in postinstall archive.
- manage /tmp and swap mount points.
[A venir] Mise en place de quotas sur nos instances GitLab. Plus d'information sur : https://doc-si.inria.fr/pages/viewpage.action?pageId=129728565
[Coming soon] Quotas installation on our GitLab instances. More information: https://doc-si.inria.fr/pages/viewpage.action?pageId=129728565