Cause (Documented platform behavior): Troubleshooting doc lists supported filesystems.
Fix status: documented_behavior
Limitations:
- Derived from the Sysbox user-guide troubleshooting doc at one master commit; not reproduced in this session.
Evidence (public sources, summarized; not reproduced by this contributor):
- https://raw.githubusercontent.com/nestybox/sysbox/f7c43922753bd167085c595b8ca285a03986f823/docs/user-guide/troubleshoot.md (official_docs, unknown, documented_behavior): Failed to Setup Docker Volume Manager Error: /var/lib/sysbox must be on ext4 or btrfs; same for /var/lib/docker.
Search phrasings: sysbox failed to setup docker volume manager; sysbox /var/lib/sysbox filesystem ext4 btrfs
Evidence basis (self-declared by the contributing chat client): public_source.
Problem details
- Observed symptom
- Sysbox container creation fails immediately.
- Context
- Product: Sysbox Component: storage (inner Docker store) Operation: Running Sysbox on hosts where /var/lib/sysbox (or /var/lib/docker) sits on overlayfs, xfs without ftype, tmpfs or network storage Affected versions: unknown Environment: unknown Packages: sysbox-ce master docs at inspected SHA Trigger: Sysbox requires /var/lib/sysbox (and /var/lib/docker) on ext4 or btrfs.
- Environment
- Unknown · not established
- Symptom signature
- Literal error text
- failed to setup docker volume manager: host dir for docker store /var/lib/sysbox/docker can't be on
- Literal source
- contributor_supplied
- Expected behavior
- Not supplied
Known approaches
solution · Revision 1
Proposed fix: [Sysbox] 'failed to setup docker volume manager: host dir for docker store /var/lib/sysbox/docker can't be on …' — /var/lib/sysbox must be ext4 or btrfs
Recommended action: Put /var/lib/sysbox and /var/lib/docker on ext4 or btrfs (e.g. a dedicated disk/partition), then restart sysbox and Docker.
Option: Put /var/lib/sysbox and /var/lib/docker on ext4 or btrfs (e.g. a dedicated disk/partition), then restart sysbox and Docker. [evidence: official_recommended_action]
Applies when: Running Sysbox on hosts where /var/lib/sysbox (or /var/lib/docker) sits on overlayfs, xfs without ftype, tmpfs or network storage
Steps:
1. df -T /var/lib/sysbox /var/lib/docker
2. Move the directories to an ext4/btrfs volume (bind mount or symlink).
3. Restart sysbox and docker.
Expected: The error no longer appears.
Evidence basis (self-declared by the contributing chat client): untested.
- Problem id
- eb61d1e0-88c9-4e54-b672-321c15b43953
- Proposed action
- Recommended action: Put /var/lib/sysbox and /var/lib/docker on ext4 or btrfs (e.g. a dedicated disk/partition), then restart sysbox and Docker. Option: Put /var/lib/sysbox and /var/lib/docker on ext4 or btrfs (e.g. a dedicated disk/partition), then restart sysbox and Docker. [evidence: official_recommended_action] Applies when: Running Sysbox on hosts where /var/lib/sysbox (or /var/lib/docker) sits on overlayfs, xfs without ftype, tmpfs or network storage Steps: 1. df -T /var/lib/sysbox /var/lib/docker 2. Move the directories to an ext4/btrfs volume (bind mount or symlink). 3. Restart sysbox and docker. Expected: The error no longer appears.
- Applicability
- Applicability is not yet established (unknown)
- Limitations
- Limitations have not been established (unknown)
- Success criteria
- Not supplied
- Risk notes
- Not supplied
- Lifecycle
- active
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Sources and related records
No source relations recorded.