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, <[email protected]> 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: "[email protected]" <[email protected]> > Date: Wed, October 12, 2011 10:58 am > To: voyage linux Mailing List <[email protected]> > > 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, <[email protected]> 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: "[email protected]" <[email protected]> > > Date: Wed, October 12, 2011 10:24 am > > To: voyage linux Mailing List <[email protected]> > > > > 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, <[email protected]> <[email protected]> > > 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: "[email protected]" <[email protected]> > > > Date: Wed, October 12, 2011 5:38 am > > > To: [email protected] > > > > > > 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 > > [email protected] > > http://list.voyage.hk/mailman/listinfo/voyage-linux > > > _______________________________________________ > Voyage-linux mailing list > [email protected] > http://list.voyage.hk/mailman/listinfo/voyage-linux _______________________________________________ Voyage-linux mailing list [email protected] http://list.voyage.hk/mailman/listinfo/voyage-linux
