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Tarnay Kálmán
Asked: 2017-07-19 09:55:20 +0800 CST

How do I list the mounts of all namespaces?

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Linux namespaces allow one to have different mounts for different namespaces. How can I list all mounts of all namespaces?

I have found /proc/*/ns/mnt, but I am not sure what to do with those.

linux

2 Answers

  1. tail -n +1 -- /proc/*/mounts is per process, but it gets the job done

    • 4

  2. You can list all the mount namespaces (constraining the output by -o PID to only display process IDs; using raw output with -r; and skipping header with -n) and then show the contents of /proc/$PID/mounts for each namespace:

    for PID in $(lsns -t mnt -o PID -r -n); do
    ps u $PID
    cat /proc/$PID/mounts
done
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