Upgrade Path

The current Mirror Manager supports a 6.6.0 Phase 2 target and two preparation modes.

Full OS Upgrade + Phase 2

Use this for a supported DP still on Ubuntu 16.04.

Ubuntu 16.04
  → 18.04
  → 20.04
  → 22.04
  → 24.04
  → DP 6.6.0 Phase 2 bringup

Every Ubuntu LTS hop is required.

Phase 2 Only

If the supported DP is already on Ubuntu 24.04, skip the OS-hop preparation and perform only the DP 6.6.0 Phase 2 workflow generated by Mirror Manager.

Decision table

Current state	Action	Final state
DP 6.2.x–6.5.0 on Ubuntu 16.04	Full OS Upgrade + Phase 2	Ubuntu 24.04 + DP 6.6.0
Supported DP 6.2–6.5 on Ubuntu 24.04	Phase 2 Only	DP 6.6.0
Healthy DP 6.6.0 on Ubuntu 24.04	Normally no upgrade	No change

Important boundary

Phase 1 completion means Ubuntu reached 24.04. It does not mean DP bringup has completed. Intermediate Ubuntu releases are transition points and may not run the complete DP application stack. Follow the Menu 7 sequence through Noble and Phase 2 before judging final application health.

Operator rule

Do not manually combine commands from historical 6.5.0 or apt-cacher/full-mirror runbooks with the current Mirror Manager. The installed tool’s Menu 7 output is the authoritative operator command set for the active configuration.

Planning & Requirements

Mirror Manager Reference

DP Upgrade Reference

System Reference

Upgrade Path

Upgrade Path

Full OS Upgrade + Phase 2

Phase 2 Only

Decision table

Important boundary

Operator rule

​Upgrade Path

​Full OS Upgrade + Phase 2

​Phase 2 Only

​Decision table

​Important boundary

​Operator rule

Upgrade Path

Full OS Upgrade + Phase 2

Phase 2 Only

Decision table

Important boundary

Operator rule