DRBL vs OPSI

DRBL deploys GNU/Linux from one server to many client machines. Clients can boot through PXE or etherboot in a diskless or systemless environment, so GNU/Linux need not be installed on each client drive. DRBL says clients can use distributed hardware resources while retaining full local-hardware access, and that other installed systems such as Windows remain untouched. Clonezilla is included for partitioning and disk cloning. Commands can change boot modes, copy files, manage user accounts and issue instructions across clients. DRBL uses PXE/etherboot, NFS and NIS for network services and supports network and multicast deployment. The free, open-source software is intended for Linux and self-hosted setups. Its installation guide supports Debian Bullseye and Buster, Ubuntu Jammy and Focal, CentOS 7, Scientific Linux 7.x and RHEL 7.x; other distributions or versions will not work. DRBL Live is available for CD/DVD or USB and hard drives in amd64, i686-pae and i686 formats.

OPSI is an open-source client management system for software distribution, operating-system installation, inventory, patch management, and configuration. It can deploy Windows updates, MSI packages, setup programs, and system packages without interactive installation steps. It also automates installations of Windows client and server systems and common Linux distributions, including unattended and image-based setups.

Regular inventory collects hardware and software details, including hardware information from devices without an operating system. Administration can be centralized across multiple sites, each with its own depot servers, configurations, and software packages. Directory integrations support Active Directory, Samba 4, and OpenLDAP; single sign-on extensions support Microsoft Entra ID and Keycloak through SAML 2.0. OPSI-WebGUI runs in a modern browser without client-side installation. Community is free with unlimited devices and one worker process. Basic is free for up to 30 devices and one setup per user. Professional costs €499 a year and requires a minimum purchase of 100 devices; Enterprise costs €899 a year with the same minimum. Enterprise Cloud costs €1,199 a year, starting at 100 devices.