CR-2026-03-12: P50 Migration from Arch to Ubuntu — Risk & Comms

Risk Assessment

Risk Impact Mitigation Probability

Data loss

High - lose personal files

Full backup before install

Low (with backup)

Hardware incompatibility

Medium - drivers don’t work

Ubuntu has good ThinkPad support

Low

LUKS passphrase forgotten

Critical - unrecoverable

Write down and store securely

Low

Gaming performance

Low - games run slower

NVIDIA drivers, Proton tested

Low

  • Case Studies Index

  • examples/codex/linux/ubuntu-install-encrypted.adoc - Full installation guide

Lessons Learned

To be completed after migration

Sign-Off

Role Name Date

Requestor

Evan Rosado

2026-03-12

Approver

Self-approved (personal)

2026-03-12

Implementer

Evan Rosado

2026-03-16 (in progress)