I've altered my /etc/sudoers file with sudo visudo as follows (showing only uncommented lines, the entire file can be found here):

$ grep -v '^#[^i]' /etc/sudoers/ | grep .
root ALL=(ALL) ALL
#includedir /etc/sudoers.d

Basically, I have just uncommented one line, which should disable sudo password entry for all members of the wheel group. My user is part of the wheel group as shown in the output of groups [username]:

sys lp wheel network video optical storage scanner power ruben

However, it is not working, since I have to enter a password every time I open a new terminal window. I've rebooted a couple of times already.

What am I missing?

EDIT1: id command returns: uid=1000(ruben) gid=1000(ruben) groups=1000(ruben),3(sys),7(lp),10(wheel),90(network),91(video),93(optical),95(storage),96(scanner),98(power)

  • 1
    welcome to U&L, is wheel your primary group ? does it came first if you do id ?
    – Archemar
    Commented Oct 30, 2018 at 15:16
  • (Typo-verification: I assume you ran groups username and not group username?)
    – Jeff Schaller
    Commented Oct 30, 2018 at 15:22
  • 1
    @JeffSchaller whoops, good point. Thanks.
    – terdon
    Commented Oct 30, 2018 at 15:25
  • I can not duplicate the problem using only modifications to /etc/sudoers and groups... I've tried adding a system group and a user group, eliminating the sudo group... Which distro are you using? And is SELinux running? Is there a group password set? ... and could you provide the output of grep wheel /etc/group Commented Oct 30, 2018 at 16:48
  • Do you have another applicable rule in a file in /etc/sudoers.d? Order matters. Commented Oct 30, 2018 at 19:51

1 Answer 1


As Gilles pointed out there is a file /etc/sudoers.d/10-installer containing %wheel ALL=(ALL) ALL.

The 10-installer file is included in /etc/sudoers, after the change I made. This inclusion overwrites my change to the /etc/sudoers file.

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