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sysext: Add debugging commands #336
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Unshare expects a single command with arguments but the "sh -c" was forgotten here.
krnowak
approved these changes
Sep 26, 2023
tormath1
reviewed
Sep 26, 2023
docs/provisioning/sysext/_index.md
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| You can list the contents of a systemd-sysext image like this (assuming an image without dm-verity): | ||
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| ``` | ||
| sudo unshare -m sh -c "mount docker-compose-2.18.1.raw /tmp && cd /tmp && find usr" |
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| sudo unshare -m sh -c "mount docker-compose-2.18.1.raw /tmp && cd /tmp && find usr" | |
| sudo unshare -m sh -c "mount docker-compose-2.18.1.raw /tmp && cd /tmp && find usr opt" |
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I think it can only be both, or? Have added a comment for opt.
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Well, I'd suggest even:
Suggested change
| sudo unshare -m sh -c "mount docker-compose-2.18.1.raw /tmp && cd /tmp && find usr" | |
| sudo unshare -m sh -c "mount docker-compose-2.18.1.raw /tmp && cd /tmp && find ." |
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That was my first idea but since only usr is considered I thought to make it explicit.
Have now added a comment for that and switched back to ..
When unsure what files an image ships or why the image is not compatible it can help to list the image contents or show the debug output from the matching.
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sysext: Add debugging commands
When unsure what files an image ships or why the image is not compatible
it can help to list the image contents or show the debug output from the
matching.
Correct unshare mount command for listing /etc
Unshare expects a single command with arguments but the "sh -c" was
forgotten here.
How to use
Testing done
Ran the command for the docker compose image.