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[GH-ISSUE #399] cannot switch euid to root #286

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opened 2026-05-05 05:31:40 -06:00 by gitea-mirror · 4 comments

gitea-mirror commented

2026-05-05 05:31:40 -06:00

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Originally created by @FacundoAcevedo on GitHub (Apr 1, 2016).
Original GitHub issue: https://github.com/netblue30/firejail/issues/399

Hello, I've installed firejail on Fedora 23 using the copr repo.
When I run firejail ( even without an application) I get:

Error: cannot switch euid to root
Error: the sandbox is not setuid root

Originally created by @FacundoAcevedo on GitHub (Apr 1, 2016). Original GitHub issue: https://github.com/netblue30/firejail/issues/399 Hello, I've installed firejail on Fedora 23 using the copr repo. When I run firejail ( even without an application) I get: > Error: cannot switch euid to root > Error: the sandbox is not setuid root

gitea-mirror

2026-05-05 05:31:40 -06:00

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gitea-mirror commented

2026-05-05 05:31:45 -06:00

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@FacundoAcevedo commented on GitHub (Apr 1, 2016):

It happens when I run firejail as normal user.
As root works perfect!

@FacundoAcevedo commented on GitHub (Apr 1, 2016): It happens when I run firejail as normal user. As root works perfect!

gitea-mirror commented

2026-05-05 05:31:46 -06:00

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@chiraag-nataraj commented on GitHub (Apr 1, 2016):

Is the firejail binary suid?

@chiraag-nataraj commented on GitHub (Apr 1, 2016): Is the firejail binary suid?

gitea-mirror commented

2026-05-05 05:31:48 -06:00

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@netblue30 commented on GitHub (Apr 1, 2016):

Yes, they install the executable without SUID. I guess they intend to use it for servers. This is how you fix it:

$ sudo chmod u+s /usr/bin/firejail

The good part is they track the master git, and they do builds every day.

@netblue30 commented on GitHub (Apr 1, 2016): Yes, they install the executable without SUID. I guess they intend to use it for servers. This is how you fix it: ``` $ sudo chmod u+s /usr/bin/firejail ``` The good part is they track the master git, and they do builds every day.

gitea-mirror commented

2026-05-05 05:31:50 -06:00

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@FacundoAcevedo commented on GitHub (Apr 1, 2016):

It works, thanks :D

@FacundoAcevedo commented on GitHub (Apr 1, 2016): It works, thanks :D

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Reference: github-starred/firejail#286

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