Syncing releases with uvt-simplestreams-libvrt

September 1, 2020 | minutes read

If you are executing uvt-simplestreams-libvrt you’ll need to execute the command with sudo and exercise patience (i.e. be okay with waiting 3 minutes while program runs without outputting any informational message to the standard output)

No logging to standard output/error

I had to exercise some patience when executing the command uvt-simplestreams-libvrt sync, the command that downloads OS images to the box. Basically, the command takes several minutes to complete and does not any information messages while running, leaving you wondering if any forward progress is being made.

Tip #1 – Run with sudo

If you do not run the command with sudo, the program will download images but then fail to wrtiting to the socket.

TIp #2 – Verify images have be downloaded

Once you downloaded the images, you can list all the images by using the query subcommand.


I’m Matt Chung. I’m a software engineer, seasoned technology leader, and father currently based in Seattle and London. I love to share what I know. I write about topic developing scalable & fail-safe software running in the AWS cloud, digital organization as a mechanism for unlocking your creativity, and maximizing our full potentials with personal development habits.

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