[Voyage-linux] setgid: Operation not permitted

[(spam-protected)]

You are right, sorry about that, in the meanwhile I google it a bit and I've finally solved the problem

I don't know why and how the myusergroup in /etc/group was like:
myusergroup:x:0000:

I changed it in myusergroup:x:1000:
I add a user to it and now that user can login via ssh and call su!!!

thanks a million to all of you. I wouldn't be able to solve it otherwise...

Davide

On 12 Oct 2011, at 17:13, <jfh at greenhousepc.com> wrote:

> Davide,
> 
> Your questions are a lot more "general Linux" than "Voyage".  My suggestion would be to pick up some Linux system administrator books at your local bookstore.
> 
> The command you're going to want for changing user attribute is "usermod" and the one for groups is "groupmod".  Note that you can specify how you want users created by adding more options to the "useradd" command.
> --
> Julie Haugh
> Senior Design Engineer
> greenHouse Computers, LLC // jfh at greenhousepc.com // greenHousePC on Skype
> 
> 
> -------- Original Message --------
> Subject: Re: [Voyage-linux] setgid: Operation not permitted
> From: "themrorange at gmail.com" <themrorange at gmail.com>
> Date: Wed, October 12, 2011 10:58 am
> To: voyage linux Mailing List <voyage-linux at voyage.hk>
> 
> Brilliant, works!
> 
> now i have
> 
> # ls -l /bin/su /etc/group* /etc/passwd*
> -rwsr-xr-x 1 root 1000 29152 Feb 15 2011 /bin/su
> -rw-r--r-- 1 1000 1000 543 Oct 10 15:29 /etc/group
> -rw------- 1 root root 558 Oct 10 14:48 /etc/group-
> -rw-r--r-- 1 1000 1000 905 Oct 10 15:29 /etc/passwd
> -rw------- 1 root root 948 Oct 10 15:11 /etc/passwd-
> 
> I suppose that I have to repeat the same command for passwd and group, haven't I...
> 
> At that stage... how should I create a user that can call su without messing it up again? what is not clear to me it's that every time that i create a user that one goes to a new group and I cannot change the usergroup in root...
> 
> 
> Thanks a million
> 
> Davide
> 
> 
> 
> On 12 Oct 2011, at 16:51, <jfh at greenhousepc.com> wrote:
> 
> > Davide,
> > 
> > Cool!
> > 
> > Login as "root" and execute the commands
> > 
> > chown root /bin/su
> > chmod 4755 /bin/su
> > 
> > This will give you "su" back.
> > --
> > Julie Haugh
> > Senior Design Engineer
> > greenHouse Computers, LLC // jfh at greenhousepc.com // greenHousePC on Skype
> > 
> > 
> > -------- Original Message --------
> > Subject: Re: [Voyage-linux] setgid: Operation not permitted
> > From: "themrorange at gmail.com" <themrorange at gmail.com>
> > Date: Wed, October 12, 2011 10:24 am
> > To: voyage linux Mailing List <voyage-linux at voyage.hk>
> > 
> > Yes, I have root access to the machine.
> > 
> > Problems started when I tried to disable ssh root login. I created a new user, with it came a new group. Then I logged via ssh as the new user and I tried su but from that user I cannot access to su becaouse of permissions.
> > 
> > I can still login as root...
> > 
> > Thanks
> > 
> > Davide
> > 
> > 
> > 
> > On 12 Oct 2011, at 13:20, <jfh at greenhousepc.com> <jfh at greenhousepc.com> wrote:
> > 
> > > Davide,
> > > 
> > > Are you able to login as root? If you can't login at all as root, you're out of luck. The only "under 20 minute" fix is to remove the CF or whatever Voyage is installed on, mount it on that Linux machine, use the "chown" command to change the ownership on the "/bin/su" command, the put it back and restart.
> > > 
> > > But if you're, as you put it, a "wannabe" (don't be so hard on your -- real wannabes don't get as far as you have), the best solution is to create a new installation image on another CF or disk drive, and put that in.
> > > 
> > > And for the rest of y'all, I do sell fully assembled and installed ALIX.2C and 3D boxes. Shipping within the United States and Canada is at pretty reasonable rates.
> > > --
> > > Julie Haugh
> > > Senior Design Engineer
> > > greenHouse Computers, LLC // jfh at greenhousepc.com // greenHousePC on Skype
> > > 
> > > 
> > > -------- Original Message --------
> > > Subject: Re: [Voyage-linux] setgid: Operation not permitted
> > > From: "themrorange at gmail.com" <themrorange at gmail.com>
> > > Date: Wed, October 12, 2011 5:38 am
> > > To: voyage-linux at voyage.hk
> > > 
> > > Unfortunately I cannot reinstall voyage since that machine is running some tests for my WSN and I cannot stop it for more than 20 min
> > > 
> > > Adrian, I installed voyage using the help script so I think that I did the mess when I started creating users and groups to differentiate access trough ssh. I think I'm the only one to blame, I'm newbe and, in this case a wannabe...
> > > 
> > > Anyway I want to fix the problem so I need a better understanding of the matter in case. Can you please suggest me any wiki or tutorial where I can learn how to manage access permission?
> > > 
> > > Many thanks
> > > 
> > > 
> > > Davide 
> > > 
> > 
> > 
> > _______________________________________________
> > Voyage-linux mailing list
> > Voyage-linux at list.voyage.hk
> > http://list.voyage.hk/mailman/listinfo/voyage-linux
> 
> 
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