Do not boot on a cgroup v1 machine
Summary
CGroups v2 has been the default for Fedora since F31. Systemd is aiming to not boot on cgroup v1 to help finally switch users to cgroup v2. See https://github.com/systemd/systemd/issues/30852.
Owner
- Name: Kevin Hannon
- Email: kehannon@redhat.com
Current status
- Targeted release: <VERSION>/ Fedora Linux <VERSION>
- Last updated: 2024-07-24
- [Announced]
- [<will be assigned by the Wrangler> Discussion thread]
- FESCo issue: <will be assigned by the Wrangler>
- Tracker bug: <will be assigned by the Wrangler>
- Release notes tracker: <will be assigned by the Wrangler>
Detailed Description
Fedora has been defaulting with cgroup v2 since F31. The goal of this change request is to phase out cgroup v1 by avoiding users booting their nodes with cgroup v1. Systemd (v256) is aiming to not boot on a cgroup v1 by default. Fedora should follow a similar approach.
Feedback
Benefit to Fedora
CGroupv2 is the future and cgroup v1 is in support at best. Most kernel developers would encourage users to switch to cgroup v2 so Fedora should also make sure that the support for cgroup v1 goes down over time.
Scope
- Proposal owners:
- Other developers:
- Release engineering: #Releng issue number
- Policies and guidelines: N/A (not needed for this Change)
- Trademark approval: N/A (not needed for this Change)
- Alignment with the Fedora Strategy:
Upgrade/compatibility impact
Early Testing (Optional)
Do you require 'QA Blueprint' support? Y/N
How To Test
User Experience
Dependencies
Contingency Plan
- Contingency mechanism: (What to do? Who will do it?) N/A (not a System Wide Change)
- Contingency deadline: N/A (not a System Wide Change)
- Blocks release? N/A (not a System Wide Change), Yes/No
Documentation
N/A (not a System Wide Change)