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#1 2018-08-27 21:16:02

johnywhy
Member
Registered: 2011-10-09
Posts: 276

[Solved] Difference Between "thunar" and "Thunar"?

`Thunar` works.

`pkexec thunar` works, to run thunar with root permissions.

However, `pkexec Thunar` returns `Thunar: Cannot open display:`

What's the difference?

My first guess is: Thunar is just an alias for thunar, but maybe Thunar introduces some switches which confuse pkexec?

Last edited by johnywhy (2018-09-06 19:33:20)


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#2 2018-08-27 22:09:20

alcornoqui
Member
Registered: 2014-07-28
Posts: 684

Re: [Solved] Difference Between "thunar" and "Thunar"?

Same experience in Xubuntu 16.04.5.

I've noticed /usr/bin/Thunar is a symlink to /usr/bin/thunar.

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#3 2018-08-27 22:24:11

alcornoqui
Member
Registered: 2014-07-28
Posts: 684

Re: [Solved] Difference Between "thunar" and "Thunar"?

And reading the man page for pkexec makes me think that /usr/share/polkit-1/actions/org.xfce.thunar.policy is the file governing that action.

I just tried adding a line, so:

<annotate key="org.freedesktop.policykit.exec.path">/usr/bin/thunar</annotate>

becomes this:

<annotate key="org.freedesktop.policykit.exec.path">/usr/bin/thunar</annotate>
<annotate key="org.freedesktop.policykit.exec.path">/usr/bin/Thunar</annotate>

... and it worked!

Is it safe to leave it like this or shall I undo the change?

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#4 2018-08-27 22:25:26

johnywhy
Member
Registered: 2011-10-09
Posts: 276

Re: [Solved] Difference Between "thunar" and "Thunar"?

alcornoqui wrote:

Same experience in Xubuntu 16.04.5.

I've noticed /usr/bin/Thunar is a symlink to /usr/bin/thunar.

thx, alcornoqui! why would that break pkexec? i googled 'pkexec symlinks', didn't find anything.

THX


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#5 2018-08-27 22:32:37

alcornoqui
Member
Registered: 2014-07-28
Posts: 684

Re: [Solved] Difference Between "thunar" and "Thunar"?

Ah, now I understand! Capitalized "Thunar", that is /usr/bin/Thunar (the symlink), wasn't authorized in the corresponding polkit action, while lowercase thunar (the binary) was.

So we add the line with "Thunar"in it, and it works. Symlinks are no problem, if properly referenced in the polkit file... or something like that smile

Last edited by alcornoqui (2018-08-27 22:34:51)

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#6 2018-08-28 00:01:41

johnywhy
Member
Registered: 2011-10-09
Posts: 276

Re: [Solved] Difference Between "thunar" and "Thunar"?

ok, i see. thx!


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