root password

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26 Jun 2012 01:49 #21331 by lendrum
root password was created by lendrum
Could someone tell me what root password is created by the live CD install?

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26 Jun 2012 09:27 #21338 by ArcEye
Replied by ArcEye on topic Re:root password
Hi,

The answer is none.
Ubuntu are a complete PITA when it comes to root logins etc. They want to deny use of root for everything.

Fortunately there are ways around it.

Easiest way, from a terminal:-

$ sudo passwd root
When prompted for a password, give your user password
When prompted for the root password, give something suitable
Now enter
$ sudo passwd -u root
You will get a reply like 'password expiry info updated' or similar
Now enter
$ su root
Enter the root password when prompted
You should now have a root prompt '#' and you are ready to go.

If you use gdm, you will probably have to edit gdm.conf to allow a root login.

You may also want to go into user manager and make sure that root is a member of all groups etc.
Seem to recall not everything was ticked.

regards

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26 Jun 2012 10:45 #21346 by BigJohnT
Replied by BigJohnT on topic Re:root password
I can't help but wonder why you need a root password... I've never needed to use it with Ubuntu. Do you know about sudo?

John

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26 Jun 2012 13:32 #21363 by lendrum
Replied by lendrum on topic Re:root password
Thanks to ArcEye for the route to the root. I will try that.
I need root to change rtapi.conf to shut down the smi interupt that delays the real time system. Is there a better way to do that?

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26 Jun 2012 16:14 #21367 by BigJohnT
Replied by BigJohnT on topic Re:root password
"sudo gedit" in a terminal will open up an editor with root power!

John

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27 Jun 2012 15:56 #21393 by andypugh
Replied by andypugh on topic Re:root password
lendrum wrote:

Thanks to ArcEye for the route to the root. I will try that.
I need root to change rtapi.conf to shut down the smi interupt that delays the real time system. Is there a better way to do that?


gksudo gedit will open gedit with the power to edit everything.

Note that on a 2.5 LiveCD there is an /etc/emc2/rtapi.conf file, but editing that won't help.
You need to edit /etc/linuxcnc/rtapi.conf.

(Which reminds me, I ought to fix the Wiki)

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29 Jun 2012 18:53 #21461 by lendrum
Replied by lendrum on topic Re:root password
I am using 2.4.3 so this problem did not happen.
I tested sudo gedit and it works so the root password is not needed.
The lathe is running great now. Thanks for all your help.

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29 Jun 2012 20:06 #21463 by BigJohnT
Replied by BigJohnT on topic Re:root password
I love it when a plan comes together...

John

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01 Apr 2015 20:31 #57372 by johnl2
Replied by johnl2 on topic Re:root password
Yes, this is what I need for Debian Wheezy! Is there something similar for Wheezy?

Thanks and sorry for butting in!

John

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01 Apr 2015 20:46 #57374 by ArcEye
Replied by ArcEye on topic Re:root password
Hi

Wheezy asks if you want to set up a root password and then very often does nothing

These instructions will allow you to set one

www.linuxcnc.org/index.php/english/forum...rrect-password#52203

regards

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