The best Operating System alternative to openmediavault is Unraid. It's not free, so if you're looking for a free alternative, you could try ZimaOS or MOS (Modular Operating System). If that doesn't suit you, our users have ranked more than 10 alternatives to openmediavault and four of them are Operating Systems so hopefully you can find a suitable replacement.
Flexible operating system combining storage management with support for mixed drive sizes, Docker containers, virtual machines, hardware and GPU passthrough, browser-based interface, file protocols, scalable expansion, integrated parity, and monitoring features.
United States
A simplified, focused and open NAS OS that supports all X86-64 hardware.
China
MOS is a lightweight operating system based on Devuan, designed specifically for small, energy-efficient home servers.
Austria
EU
It uses openSUSE Leap as a base with the Btrfs advanced file system. EasyNAS is managed through a web-based interface and offers such features as on-line growing of file systems, snapshots and copy-on-write.
