“Sandbox” error starting Shift on Linux

Shift, which runs on the Muon framework, uses Linux userspace sandboxing; however, some Linux OS's doesn't allow unprivileged users to create namespaces. Then the Muon application will fail to run and tell the user to run it with the --no-sandbox flag.

To solve the issue, run the following command to enable user namespaces.

For Debian and Ubuntu:

`echo 'kernel.unprivileged_userns_clone=1' > /etc/sysctl.d/00-local-userns.conf`
`service procps restart`

For CentOS or RHEL:

`echo 10000 > /proc/sys/user/max_user_namespaces`

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  • 31-Jan-2019
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