SU not allowed...

**jaboua** · 05-03-2005

I went for a fresh stage1-install of gentoo this time, and most seems to be working (Not all done yet...). But the problem is that I cant use su, I have to run "sudo su" to get root. I am in the wheel-group. Here's the error:

Code:

bash-2.05b$ su
You are not authorized to su root

Any suggestions?

**genesus** · 05-03-2005

have you tried

Code:

su -

?

**Cabhan** · 05-03-2005

Have you double-checked the permissions of /bin/su?

**jaboua** · 05-04-2005

The "su -" did'nt work neither, I am not authorised to su root. I also checked the permissions of /bin/su, the owner and group is root but everybody can exe (-rws--x--x). I checked the man for suauth and added this line to the not-existing file /etc/suauth:

root:ALL EXCEPT GROUP wheel

ENY

*still humbling for himself*

**jaboua** · 05-04-2005

Just found an article on google made by a guy called madhax0r (at) b0g (dot) org which pointed me in the direction of editing the file "/etc/login.defs". I searched for su (HUGE ammounts of them!), but found this variable which was set to yes by default:

Code:

# If "yes", the user must be listed as a member of the first gid 0 group
# in /etc/group &#40;called "root" on most Linux systems&#41; to be able to "su"
# to uid 0 accounts.  If the group doesn't exist or is empty, no one
# will be able to "su" to uid 0.
#
SU_WHEEL_ONLY  yes

I then changed "yes" to "no" and now I can su root

EDIT: here's the link of the article on google (just searched for the error-fraze): http://www.hackphreak.org/newbie/linuxbxj.txt

**Dachnaz** · 05-04-2005

You can always log in as root and add your user to group 'wheel.'

**jaboua** · 05-04-2005

My user was in the wheel-group, but I had to change the variable to allow ANYBODY not in the root-group to gain superuser-powers... Even after adding the wheel-section in /etc/suauth. Notice the comment in the file.

**serz** · 05-05-2005

Originally Posted by jaboua

Code:

# If "yes", the user must be listed as a member of the first gid 0 group
# in /etc/group &#40;called "root" on most Linux systems&#41; to be able to "su"
# to uid 0 accounts.  If the group doesn't exist or is empty, no one
# will be able to "su" to uid 0.
#
SU_WHEEL_ONLY  yes

I then changed "yes" to "no" and now I can su root

It says that you will be able to "su" to uid 0 accounts (root) if your user is listed in the gid 0 group (that's root group), is that what you did?

You shouldn't need to add your user to the "root" group just to use su

**jaboua** · 05-05-2005

No, I changed the SU_WHEEL_ONLY to no, so now I can su from anybody in the wheelgroup.

**serz** · 05-05-2005

Ah, I didn't read correctly your post. It makes sense now.

Well, glad you got it fixed!

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