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The MDM user 'mdm' does not exist. Please correct MDM config

Posted: Sun Jun 10, 2012 3:36 pm
by jaishakarh
I cannot boot into linux mint 13 maya mate 64bit.

I downloaded the 64 bit version of mint maya and loaded it on a 8GB pendrive through ubuntu using startup disk creator. And then when i try to boot into the live desktop environment this is the error that is produced.

This is the error that is produced:
The MDM user 'mdm' does not exist. Please correct MDM configuration and restart MDM.
System config:
Processor - AMD Athlon(tm) II X2 260 processor 3.2GHz
GPU - Nvidia GTS 450
RAM - 4GB

Please anyone HELP ME!!
THANK YOU!!

Re: The MDM user 'mdm' does not exist. Please correct MDM co

Posted: Sun Jun 10, 2012 3:46 pm
by timcowchip
I ran into this same error after installing MDM.

This is what worked for me:

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sudo groupadd -r mdm

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sudo adduser mdm
you'll need to give a password for the user "mdm"

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sudo gpasswd -a mdm mdm

Re: The MDM user 'mdm' does not exist. Please correct MDM co

Posted: Mon Jun 11, 2012 9:59 am
by jaishakarh
my issue is even before install when i want to boot to live cd to install mint.
so i cannot input those commands right ?

so what do i do ?

thanks again

Re: The MDM user 'mdm' does not exist. Please correct MDM co

Posted: Mon Jun 11, 2012 1:56 pm
by timcowchip
jaishakarh wrote:my issue is even before install when i want to boot to live cd to install mint.
so i cannot input those commands right ?

so what do i do ?

thanks again
You can create users and groups while running the live cd. They just won't persist through a reboot.

Re: The MDM user 'mdm' does not exist. Please correct MDM co

Posted: Tue Jun 12, 2012 10:09 am
by jaishakarh
how do i do that can you please tell me?
Thank you!

Re: The MDM user 'mdm' does not exist. Please correct MDM co

Posted: Tue Jun 12, 2012 11:17 am
by timcowchip
timcowchip wrote:I ran into this same error after installing MDM.

This is what worked for me:

Code: Select all

sudo groupadd -r mdm

Code: Select all

sudo adduser mdm
you'll need to give a password for the user "mdm"

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sudo gpasswd -a mdm mdm
Write down on a piece of paper the commands in the code blocks above. After clicking "OK" on the error dialog, you should be in the console with sudo priviledges. Start typing the commands, one at at time, in the console.

If

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aduser
doesn't work, try

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useradd

Re: The MDM user 'mdm' does not exist. Please correct MDM co

Posted: Wed Jun 13, 2012 4:34 am
by jaishakarh
sorry but after clicking ok on the dialog. there is no console which comes up. but another error which says authentication failure and hangs there. so what can i do?
thanks man for replying.

Re: The MDM user 'mdm' does not exist. Please correct MDM co

Posted: Wed Jun 13, 2012 1:31 pm
by timcowchip
Try

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ctrl alt F2
then enter the commands at the prompt.

The console I am referring to, isn't a little window, it is the prompt on a blank screen. If there is no prompt, then you're only other option is try LinuxMint Cinnamon. It uses GDM instead of MDM.

Re: The MDM user 'mdm' does not exist. Please correct MDM co

Posted: Thu Aug 16, 2012 1:16 pm
by bradharris
I had this exact same issue. I had used the Universal USB Installer to put Mint onto a 16 gig usb drive. The problem turned out to be that I didn't allocate any persistent storage on the USB drive. I redid the drive adding 500 mb persistent storage and everything worked like a charm.

Re: The MDM user 'mdm' does not exist. Please correct MDM co

Posted: Tue Apr 16, 2013 10:12 pm
by leetcat
I am still facing this same issue. But I the proposed solution does not work.