Author Topic: Polkit error - GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed  (Read 28475 times)

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I have multiple servers and I have updated 2 of them, now I have the same error on both everytime I tried to restart any service.

I get the following error:
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Unable to register authentication agent: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Cannot determine user of subject
Error registering authentication agent: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Cannot determine user of subject (polkit-error-quark, 0)

Why we get this error? And what is the solution?

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Re: Polkit error - GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed
« Reply #1 on: June 12, 2020, 07:07:24 AM »
this is not any error ots some issue with new version of centos 7.8 you can disable secure processes to suppress this message.

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Re: Polkit error - GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed
« Reply #2 on: June 12, 2020, 01:45:10 PM »
this is not any error ots some issue with new version of centos 7.8 you can disable secure processes to suppress this message.
How can I disable secure processes?

And why this is not an error? This cause that some processes cannot restart and if they stop we are unable to start it, I think the system should not work like that.

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Re: Polkit error - GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed
« Reply #3 on: June 16, 2020, 01:52:31 PM »
This is CentOS bug and seems like they will not fix it :(
https://bugs.centos.org/view.php?id=17291
You can ask me to solve any problem with your server for some money in pm  ;)
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Do not "disable secure processes" fix the real reason, Solution, test on 2 updated CentOS 7 with CWP
https://access.redhat.com/solutions/1543343

Resolution:

    Ensure the existence of a polkitd system user & group
    Copy/paste the following 2 compound-commands to a root terminal to check for and conditionally create the user/group
   
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getent group polkitd >/dev/null && echo -e "\e[1;32mpolkitd group already exists\e[0m" || { groupadd -r polkitd && echo -e "\e[1;33mAdded missing polkitd group\e[0m" || echo -e "\e[1;31mAdding polkitd group FAILED\e[0m"; }
    getent passwd polkitd >/dev/null && echo -e "\e[1;32mpolkitd user already exists\e[0m" || { useradd -r -g polkitd -d / -s /sbin/nologin -c "User for polkitd" polkitd && echo -e "\e[1;33mAdded missing polkitd user\e[0m" || echo -e "\e[1;31mAdding polkitd user FAILED\e[0m"; }

    Reset the permissions and user/group ownership for all files provided by the polkit and polkit-pkla-compat packages
    Copy/paste the following compound-command to a root terminal to check for and conditionally reset user/group perms & ownership
   
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rpm -Va polkit\* && echo -e "\e[1;32mpolkit* rpm verification passed\e[0m" || { echo -e "\e[1;33mResetting polkit* rpm user/group ownership & perms\e[0m"; rpm --setugids polkit polkit-pkla-compat; rpm --setperms polkit polkit-pkla-compat; }
    Reboot
    A reboot of the machine will be required to make sure that all changes take affect and that polkit has reconnected to the dbus
   
Code: [Select]
shutdown -r now

Re: Polkit error - GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed
« Reply #5 on: July 15, 2020, 08:24:06 AM »
I hereby declare @NFT the winner!  ;D

A simpler method (mount modification) was posted a while back that appears to have cleared the warning. As to whether it is/was effective, is another matter.
« Last Edit: July 15, 2020, 08:28:13 AM by cynique »

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Re: Polkit error - GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed
« Reply #6 on: May 16, 2022, 09:35:27 AM »
Also tnx to the @NFT,
solved also by my side.


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Re: Polkit error - GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed
« Reply #7 on: June 02, 2022, 08:03:39 AM »
Also tnx to the @NFT,
solved also by my side.

Just notice,
temporally solved.

Problem still exists, yesterday I noticed the same message for crond :(.

Is there any solution?! It seems that there is existing problem with CentOS 7.6, even on 7.8.
It doesn’t look promising that the RedHat team will address this any time soon.


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Re: Polkit error - GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed
« Reply #8 on: June 04, 2022, 06:18:10 PM »
On centos 7, there are instances where you get the error Unable to register authentication agent: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Cannot determine user of subject
Error registering authentication agent: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Cannot determine user of subject (polkit-error-quark, 0)

This usually happens when trying to restart a systemd service.

The workaround is as follows:

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groupadd -g 23 nohidproc
usermod -a -G nohidproc polkitd
mount -o remount,rw,hidepid=2,gid=nohidproc /proc
systemctl restart polkit

Add the following in /etc/fstab as well

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echo "proc /proc proc defaults,hidepid=2,gid=nohidproc 0 0" >> /etc/fstab
After mount the new mountpoint

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mount -a
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systemctl restart polkit
Done.


https://www.awaludin.net/how-to-fix-gdbus-errororg-freedesktop-policykit1-error-failed-centos-7/

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Re: Polkit error - GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed
« Reply #9 on: February 01, 2023, 05:10:15 AM »
I can confirm @daniellopesjp solution just worked for me.

Now I can run sh /scripts/update_cwp without these two warnings:

Code: [Select]
Unable to register authentication agent: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Cannot determine user of subject
Error registering authentication agent: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Cannot determine user of subject (polkit-error-quark, 0)

Thanks!

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Re: Polkit error - GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed
« Reply #10 on: February 01, 2023, 04:11:31 PM »
I can validate this fix also. Thanks!

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Re: Polkit error - GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed
« Reply #11 on: April 19, 2023, 08:07:20 PM »
works for me too

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Re: Polkit error - GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed
« Reply #12 on: May 06, 2023, 11:34:50 PM »
I got error
Code: [Select]
svxxx.xxx polkitd[9231]: Unregistered Authentication Agent for unix-process:9501:31436 (system bus name :1.37, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.
Any help for me?
I can't start apache


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Re: Polkit error - GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed
« Reply #13 on: May 18, 2023, 08:41:59 PM »
this is not any error ots some issue with new version of centos 7.8 you can disable secure processes to suppress this message.

thank you

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Re: Polkit error - GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed
« Reply #14 on: June 07, 2023, 05:19:59 AM »
Hello,
I am not able to securely mount my CWP disks. Problem do remains and it is not good for a PRO panel.
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