Not able to login from GUI


 
Thread Tools Search this Thread
Top Forums UNIX for Advanced & Expert Users Not able to login from GUI
# 1  
Old 02-01-2010
Not able to login from GUI

Hi,
When I installed Ubuntu on my laptop, I had chosen "automatic login" . So i was not asked ofr username and password everytime I switched on. I later wanted to change the settings. So I went to systems-->administration-->login window-->security. There I disabled automatic login and I reboot the computer. Now the GUI does not allow me to enter USername and password. It says "Authorization denied" at the login screeen.. PLease help me.
# 2  
Old 02-01-2010
At login screen press alt+ctrl+f1 and login into console. There - log in and use "startx" command. I hope (wild guess) this works as I don't have a Ubuntu at hand at the moment. If it does - go to the options and review them.
# 3  
Old 02-02-2010
Java

Another workaround:
if you installed grub as boot loader, you can edit the kernel parameters before booting via grub. Add a 'init=/bin/sh' parameter, and boot. That gives you a root shell. Remount the root filesystem, like 'mount -o remount,rw /'. create the user account you seem to be missing (useradd, see manpage). remount the file system readonly, like 'mount -o remount,rw /'. exit the shell, aka reboot. That should have created a valid user.

I do not know Ubuntu that well, but that should work generically on any linux which has grub. W/o grub, you can achieve the same if you have a boot CD somewhere.
# 4  
Old 02-02-2010
At Grub choose "recovery mode" as the choice and it should drop you into a prompt and you can reset your password there using "passwd username"

If that doesn't work try these links:
How to reset your password in Ubuntu
How-To Recover password under Ubuntu|Ubuntu Geek
Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Unable to login into GUI mode.

hii all, I am unable to login into GUI mode in solaris 10. It is only prompting me to command mode credentials not going further to GUI mode.. Please help.. Thanks & regards, Bhagi (3 Replies)
Discussion started by: bhargav90
3 Replies

2. UNIX for Dummies Questions & Answers

login via gui

I am not too new with linux. Since I installed a new version (2011) of Mandriva, I am unable to login via the gui (I'm currently using the live version of the same dvd free with Linux Format mag). I can login from a console as it has picked up the previous version's /home, but when I try to login... (2 Replies)
Discussion started by: richardmellersh
2 Replies

3. Solaris

Solaris machine is at # prompt not able to login in GUI mode

Solaris machine is at # prompt not able to login in GUI mode : I want to login solaris server in GUI mode from # prompt. ---------- Post updated 12-30-11 at 11:36 AM ---------- Previous update was 12-29-11 at 02:23 PM ---------- Hi, Please send me some guidelines regarding this.... as... (2 Replies)
Discussion started by: sunray
2 Replies

4. Fedora

can't login via GUI but can via Putty

Hi all, I am able to login via putty to a fedora 10 workstation. But when i try to login via physical screen connected to workstation, it just gives me a blank screen and i cant see any options to enter username and passwd. How do i get the physical GUI to work. $ who -r ... (4 Replies)
Discussion started by: lramsb4u
4 Replies

5. Solaris

Problem with GUI login on Ultra 45

I have a Sun Ultra 45 that was working perfectly until i upgraded it to Update 9 with a zfs filesystem. The box is sparc based and has an internal video card. When i boot it up, i receive an X server error and, while checking /var/dt/Xerrors, the following message is displayed Fatal server... (9 Replies)
Discussion started by: goose25
9 Replies

6. Solaris

Queries on cron and GUI login...

I have 2 queries: 1.how do we monitor failed GUI logins...? I think the /var/adm/loginlog will log only failed logins happened at /dev/console and virtual terminals.. 2.How to use cron scheduler to display a message when a user is working in GUI Terminal window irrespective of in which... (1 Reply)
Discussion started by: saagar
1 Replies

7. Linux

how to root gui login enable

hi iam installed mandriva spring 2009 iam unble to login into gui using root how to enable it where the settings are stored (5 Replies)
Discussion started by: seshumohan
5 Replies

8. Solaris

Solaris 8 login GUI doesn't come up.

Hi experts, I've installed Solaris 8 to Sunfire V480. After installation I only could login to the server using CLI command. Can you show me how to start the login GUI? I use standard SUN graphic monitor and keyboard. Thanks in advanced. VN (26 Replies)
Discussion started by: vntiger
26 Replies

9. SCO

pswd change on sco GUI login

Can i change the password on the SCO GUI interface login page and if so how? When I try to login it just goes right back to the login screen. If anyone has any suggestions, please reply. :confused: (3 Replies)
Discussion started by: qphillips
3 Replies
Login or Register to Ask a Question

Featured Tech Videos