SCO UNIX to Linux Migration
Many organizations still run mission-critical applications on aging SCO UNIX or OpenServer systems. Zwiegnet provides expert, phased migrations to Linux — preserving your data, applications (including legacy COBOL), and business continuity while gaining modern security, support, virtualization, and hardware compatibility. On-site in Watertown, WI or remote nationwide.
Start Your SCO to Linux MigrationOur SCO UNIX to Linux Migration Services
SCO systems (OpenServer 5/6, UnixWare) often host stable but unsupported legacy apps in manufacturing, retail, accounting, and more. Migrating to Linux eliminates EOL risks, improves performance, and reduces hardware dependency — but requires careful planning to avoid downtime or data loss. We handle everything from assessment to cutover and beyond.
Our migration services include:
- Discovery & Assessment – Inventory hardware, software, custom apps (COBOL, C/C++), databases, dependencies, and SCO-specific configs (vxfs, SCOadmin, merge).
- Application Compatibility & Porting – Analyze binaries, recompile C/C++ code, port legacy COBOL (e.g., to GNUcobol or Micro Focus), handle SCO API differences, and test functionality.
- Data & Filesystem Migration – Safe transfer of files, databases, and configs using rsync, tar, custom scripts, or backup media — preserving permissions and ownership.
- P2V & Virtualization Testing – Physical-to-Virtual conversions (e.g., to KVM, VMware), hardware abstraction for modern drivers, and parallel testing in VMs to validate boot/behavior.
- Parallel Run & Validation – Run SCO and Linux side-by-side, compare outputs, perform user acceptance testing, and iterate until confidence is achieved.
- Zero-Downtime / Low-Downtime Cutover – Scheduled switchover with rollback plans, DNS/IP changes, final sync, and post-go-live monitoring.
- Post-Migration Optimization & Support – Tune Linux environment, implement monitoring (Nagios/Zabbix), security hardening, backups (Restic/Bacula), and ongoing managed support.
- Custom Scripting & Automation – Rewrite SCO shell/ksh scripts for bash/zsh, automate deployments with Ansible where applicable.
- Risk Mitigation & Compliance – Address security gaps in legacy SCO, ensure audit trails, and plan for regulatory needs during transition.
We specialize in minimizing business disruption — many migrations are completed with hours (not days) of planned downtime. Whether your app is simple file-based or complex with custom drivers, we deliver reliable results based on decades of legacy UNIX experience.
Located between Madison and Milwaukee, Wisconsin since 2009 — local expertise for Watertown-area businesses ready to modernize from SCO to Linux.