Werk #19700: Enable site restore in Checkmk Docker containers

Component

Site management

Title

Enable site restore in Checkmk Docker containers

Date

Apr 9, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.6.0b1 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0b5 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p26	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Previously, restoring a site backup in a Checkmk Docker container could result in the following error:

File "/omd/versions/2.3.0p41.cce/lib/python3.12/shutil.py", line 662, in _rmtree_safe_fd
    os.rmdir(name, dir_fd=dirfd)
OSError: [Errno 16] Device or resource busy: '/omd/sites/disaster/tmp'

The restore would abort partway through, leaving the site home directory nearly empty and the site inaccessible.

Users who cannot update can work around this issue by not using a --tmpfs mount at tmp/ and retrying the restore.

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