15.3. Live Migration and Red Hat Enterprise Linux Version Compatibility
Table 15.1. Live Migration Compatibility
|Migration Method||Release Type||Example||Live Migration Support||Notes|
|Forward||Major release||6.5+ → 7.x||Fully supported||Any issues should be reported|
|Backward||Major release||7.x → 6.y||Not supported|
|Forward||Minor release||7.x → 7.y (7.0 → 7.1)||Fully supported||Any issues should be reported|
|Backward||Minor release||7.y → 7.x (7.1 → 7.0)||Fully supported||Any issues should be reported|
Troubleshooting problems with migration
- Issues with the migration protocol — If backward migration ends with "unknown section error", repeating the migration process can repair the issue as it may be a transient error. If not, report the problem.
- Issues with audio devices — When migrating from Red Hat Enterprise Linux 6.x to Red Hat Enterprise Linux 7.y, note that the es1370 audio card is no longer supported. Use the ac97 audio card instead.
- Issues with network cards — When migrating from Red Hat Enterprise Linux 6.x to Red Hat Enterprise Linux 7.y, note that the pcnet and ne2k_pci network cards are no longer supported. Use the virtio-net network device instead.
Configure shared storage and install a guest virtual machine on the shared storage.