Confusing warning: unknown argument ignored: lazytime
Metadata
Current evaluation
Fixed by merged PR #989 (commit 31c44401), which builds fuse-overlayfs v1.15 from source and removes the misleading "lazytime" warnings seen with Noble’s older version.
Resolution: closed resolved
Reason: Merged PR #989 resolved #964 by building fuse-overlayfs v1.15, where support for the "lazytime" option is available, instead of using Noble’s outdated package.
Evaluated by: mr-cal-bot
No scores available.
Issue body
### Bug Description
Hi,
STR:
```
git clone https://github.com/canonical/charmed-postgresql-rock
cd charmed-postgresql-rock
git checkout 16-24.04
rockcraft pack
```
For the future, reproducible with Git commit [346b618](https://github.com/canonical/charmed-postgresql-rock/pull/162/commits/346b618bdbe01198e9e3d144c239b373c54824b6).
AR:
```
> rockcraft pack
Initialising lifecycle :: Updating base overlay systemunknown argument ignored: lazytime
Pulling charmed-postgresql - (15.6s)unknown argument ignored: lazytime
Overlaying charmed-postgresqlunknown argument ignored: lazytime
Overlaying charmed-postgresql - (12.0s)unknown argument ignored: lazytime
Overlaying non-root-userunknown argument ignored: lazytime
Building charmed-postgresqlunknown argument ignored: lazytime
Building non-root-userunknown argument ignored: lazytime
Packed charmed-postgresql_16.10_amd64.rock
```
ER: successful build without warnings `unknown argument ignored: lazytime`.
The issue/warning is also reproducible in branch 14-22.04 (commit c7ad026bc).
We are happy to assist with troubleshooting/testing the fix. Tnx in advance!
### To Reproduce
See above
### Environment
```
> snap list rockcraft lxd
Name Version Rev Tracking Publisher Notes
lxd 5.21.4-8b5e998 35624 5.21/stable canonical✓ -
rockcraft 1.14.0 3591 latest/stable canonical✓ classic
> uname -a
Linux taurus-framework 6.14.0-29-generic #29-Ubuntu SMP PREEMPT_DYNAMIC Thu Aug 7 18:32:38 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
> lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 25.04
Release: 25.04
Codename: plucky
```
### rockcraft.yaml
```yaml
https://github.com/canonical/charmed-postgresql-rock/blob/16-24.04/rockcraft.yaml
```
### Relevant log output
```shell
See above multiple `unknown argument ignored: lazytime`.
```
Evaluation history
| Date | Model | Scores | Action | Summary |
|---|---|---|---|---|
| stealth/space-bunny-alpha | — | closed resolved | Fixed by merged PR #989 (commit 31c44401), which builds fuse-overlayfs v1.15 from source and removes the misleading "lazytime" warnings seen with Noble’s older version. | |
| stealth/space-bunny-alpha | — | closed not a bug | Closed as harmless: Noble’s outdated fuse-overlayfs emitted the warning despite a successful build. An internal upgrade following canonical/imagecraft#185 was proposed, not confirmed. | |
| qwen/qwen3.6-35b-a3b | — | — | Closed as harmless. The warning originates from an outdated fuse-overlayfs version in Ubuntu Noble. The team plans to resolve it by building a newer upstream version internally, following imagecraft's approach. | |
| qwen/qwen3.6-35b-a3b | — | — | Closed as harmless. The warning stems from an outdated fuse-overlayfs in Ubuntu Noble. Resolution involves building a newer upstream version to eliminate the message. | |
| qwen/qwen3.6-35b-a3b | — | — | Closed as harmless. The warning originates from Ubuntu Noble's outdated fuse-overlayfs. The team plans to build a newer upstream version to resolve it, following imagecraft's approach. | |
| qwen3.6-35b-a3b-mtp-q6 | — | — | Closed as harmless. The warning originates from Ubuntu Noble's outdated fuse-overlayfs. Resolution is planned by building a newer upstream version locally, similar to imagecraft's approach. |
Update history
No update history recorded yet.
Related work
-
Likely Fixed By:
canonical/rockcraft#989
(confidence 100%)
Merged as commit 31c44401 to build fuse-overlayfs v1.15 and eliminate the warning.
-
Related To:
fuse-overlayfs#429
(confidence 100%)
Upstream issue documenting support for the lazytime argument in newer fuse-overlayfs versions.
-
Related To:
canonical/imagecraft#185
(confidence 98%)
Imagecraft previously implemented the same fuse-overlayfs v1.15 build fix.
Related issues
| Issue | Project | State | Summary | Similarity |
|---|---|---|---|---|
| #989 fix: build latest fuse-overlayfs to fix warning message | rockcraft | merged | Merged PR #989 as commit 31c44401, building fuse-overlayfs v1.15 from source to fix the misleading "unknown lazytime" warning and resolve #964. | |
| #1158 "unknown argument ignored: lazytime" in overlay operations | craft-parts | open | Triaged bug: old fuse-overlayfs versions emit noisy “unknown argument ignored: lazytime” warnings during overlay mounts; it remains open without a craft-parts fix. | |
| #185 fix: build latest fuse-overlayfs to fix warning message | imagecraft | merged | Merged PR #185 in commit 5e39250, building fuse-overlayfs v1.15 from source to eliminate the overlay warning tracked in containers/fuse-overlayfs#429. |