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Filtering by: Keyword: ctr Clear all

Removing HCS containers

The Windows workers in the windows-x86_64 pool have a habit of quietly falling off the cluster. The ocluster-worker service is still RUNNING, but the scheduler lists the worker as disconnected.

container container_id containers ctr ctr_path exec_result ocaml-ci ocluster-worker orphan-test snapshot

10 Jun 2026

Marc Elvers

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OBuilder on Windows: Bringing Native Container Builds with the HCS Backend

Following from my containerd posts last year and my previous work on obuilder backends for macOS and QEMU, this post extends obuilder to use the Host Compute System (HCS) and containerd on Windows.

container containerd ctr hcs obuilder obuilder-spec programdata snapshot snapshots windows

19 Feb 2026

Marc Elvers

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Containerd on Windows

Everything was going fine until I ran out of disk space. My NVMe, C: drive, is only 256GB, but I have a large, 1.7TB SSD available as D:. How trivial, change a few paths and carry on, but it wasn’t that simple, or was it?

appdata containeradministrator containerd ctr fsutil hns lock namespace netns psm1

27 Jun 2025

Marc Elvers

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