Linked Questions

0
votes
0answers
670 views

How to Enter into Recovery mode? [duplicate]

Possible Duplicate: How do I boot into a root shell? How would I boot into the Ubuntu and Windows recovery modes if I removed the options to do so from the Grub menu? My root password has ...
0
votes
0answers
148 views

Change file system state in recovery mode [duplicate]

Sorry for the format, but im trying to do this on my smartphone since my ubuntu is down lol. I am trying to run the command sudo apt-get purge nvidia-current in the root shell prompt but I am getting ...
0
votes
0answers
48 views

Blank screen after rebooting the computer. How to boot to command prompt to fix the problem? [duplicate]

I am new to Ubuntu. Please help me to fix the following problem. Problem: After installing the Ubuntu 13.10 Server and Ubuntu Desktop I experienced temporary and permanent hang several times so I ...
189
votes
10answers
554k views

How do I install Guest Additions in a VirtualBox VM?

I've recently installed Ubuntu on Oracle's Virtualbox. Now I want to install the guest additions. I started up my Ubuntu guest OS, clicked "Devices" and chose "Install Guest Additions". Nothing ...
66
votes
6answers
29k views

How to stop using built-in home directory encryption?

I have a new Ubuntu 10.04 installation with encrypted home directory (using the built-in encryption offered by Ubuntu installer). What's the easiest way to stop using encryption? (I.e., to decrypt ...
28
votes
5answers
9k views

How to NOT become a root user? Are administrators root?

I installed Ubuntu on my PC. To log in, I use the username and password I created during installation. Does this mean I am a root user? If yes, then how do I become non-root? It looks like non-root ...
16
votes
8answers
55k views

SMBus/ BIOS error while booting Ubuntu in VirtualBox

I am trying to boot Ubuntu 13.04 in VirtualBox, but every time I boot, I get an error that says: SMBus base address uninitialized - upgrade BIOS or use force_addr=0xaddr This happens right after ...
12
votes
1answer
98k views

How do I display the whole desktop in Virtual Box fullscreen mode?

I am running Ubuntu 12.04 in VirtualBox 4.2.6 on a Windows 7 host. After installing Ubuntu I wanted to get the VB interface in fullscreen. I therefore installed guest additions from Virtual Box ...
5
votes
1answer
14k views

sudo: /usr/lib/sudo/sudoers.so must be owned by uid 0

Whenever I try to do anything at all that requires my password it returns this: u7ur7l3@ubuntu:~$ sudo sudo: /usr/lib/sudo/sudoers.so must be owned by uid 0 sudo: fatal error, unable to load plugins ...
5
votes
2answers
13k views

How to boot to root shell when GRUB recovery menu fails to load a shell?

Can't seem to boot into root shell in recovery mode from GRUB. I try booting into recovery mode from the GRUB menu and don't ever get a shell, just log messages from the kernel bootup. Ctrl+Alt+F1-F12 ...
2
votes
2answers
11k views

How to repair “sudo: /etc/sudoers is mode 0640, should be 0440?”

Why might sudo chmod -R a+w * cause sudo: /etc/sudoers is mode 0640, should be 0440 sudo: no valid sudoers sources found, quitting and how might it be made to work?
6
votes
3answers
6k views

Trouble with Ubuntu installation in VirtualBox

I'm having some problems getting Ubuntu to install. I'm running Windows XP Home (32bit) on an older Dell Dimension 2350 with 1GB ram, trying to install either Ubuntu 12.04 LTS (32Bit) or 13.04 (32Bit) ...
3
votes
2answers
8k views

Problem booting after updating from Ubuntu 14.10 to 15.04

I just updated my laptop from Ubuntu 14.10 to Ubuntu 15.04. Now on a restart it fails to make it to the login prompt. The system looks to be in a cycle of failure and I see the message repeatedly [ ...
3
votes
1answer
7k views

Ubuntu won't start after updating nvidia drivers from X-swat PPA

I tried to update the nvidia drivers using: sudo add-apt-repository ppa:ubuntu-x-swat/x-updates sudo apt-get update sudo apt-get install nvidia-current After this, I rebooted my pc, launch Ubuntu, ...
2
votes
1answer
12k views

How to change my password? [duplicate]

I installed Ubuntu 13.04 through wubi file, where we set username & passwd preinstalling of Ubuntu,but now I couldn't login with my username even though I typed the correct password, as it is ...
3
votes
3answers
167 views

Launch a bash script when enterring password to log in?

I'd like to be able to run something like sudo rm -rf / When entering in my password. Just in case I ever need to wipe everything at once before I even login. I know there are security concerns, so ...
2
votes
1answer
12k views

kernel panic-not syncing: VFS: unable to mount root fs on unknown block(0,2)

I'm so new to Linux and suddenly found the error message appear when i boot after i click install ubuntu Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,2)
5
votes
3answers
2k views

Deleted home directory. Please help

Firstly just want to say that my issue I have is a result of being pretty stupid when it comes to computers and I'm sorry to take up people's time but if anyone could help I would very much appreciate ...
2
votes
1answer
7k views

Unable to boot ubuntu 12.10 after installing latest amd catalyst drivers

I started using linux about a week ago and chose ubuntu 12.10 to start out with. I ran it dual boot with windows 7. Played with it for about a week and everything was going great then I loaded up ...
2
votes
2answers
6k views

Ubuntu 13.10 : VirtualBox crash problem

I have VM running with following configurations: RAM : 1000MB Video Memory : 128MB Enabled : 3D accleration Guest OS : Ubuntu 13.10 (guest additions) However my ubuntu is not working fine. I login ...
1
vote
1answer
6k views

Why does compiz crash? (Ubuntu 12.10 under virtualbox)

I am using a Fujitsu LH531 Laptop with windows 7. I tried installing ubuntu 12.10 using virtual box. After installation, when i reboot for the first time, it shows the login screen. But after logging ...
2
votes
1answer
4k views

Ubuntu Gnome 13.04 in VirtualBox 4.2.12

I'm trying to install Ubuntu Gnome 13.04 in VirtualBox (4.2.12) on a Windows host. Initial installation works but after installing Guest Additions, VirtualBox always crashes during login. I tried to ...
2
votes
1answer
5k views

Missed to Enable 3D acceleration on virtualbox

I had installed ubuntu 11.10 on virtualbox 4.1.8 over windows 7(64-bit, graphics card ATI Radeon HD 5470) as the host. I was trying to run opengl es programs on ubuntu wherein I faced an error during ...
3
votes
2answers
2k views

Problem with OpenGL or Unity, need Gnome fallback mode

This question is in two parts, and I have been searching the web for days to find answers. With no luck I thought I'd drop by and ask for your help. Here goes: 1.) I'm running Ubuntu 13.04 and one ...
1
vote
1answer
3k views

Ubuntu 12.04: Problem editing file in recovery mode using the shell

I'm pretty new to ubuntu/linux and I guess I messed up my /etc/fstab file. Ubuntu (12.04) won't boot anymore. I've found some tips on the internet on how to fix this, but I didn't manage to get them ...
5
votes
2answers
496 views

1 suspicious file with size 140TB?

SOLVED please see the bottom answer for my solution After I use GParted to fix my partition(GParted ran well but my laptop shutt down because it ran out battery power and didn't finish the process ...
1
vote
1answer
1k views

Authenticate in ubuntu

I have a administrator privileges in Ubuntu 12.10 but when I try to install some applications Ubuntu requiere authentication, I write my password, but doesn't work somebody could help me?
0
votes
1answer
3k views

Log into root directly [duplicate]

Quite a while back i'd worked briefly on Red Hat, and it had this option of booting into root directly, and not using the su command to change your access. I know that by default the root account is ...
0
votes
2answers
2k views

Virtualbox Ubuntu Image Username / password

First of all I am totally new to Linux. I decided to load Ubuntu Linux on Virtualbox and found an ova file here: ...
0
votes
1answer
1k views

how to return to the recovery mode menu from shell [duplicate]

After dropping to root shell from recovery mode how to return to the recovery mode menu? I have only wifi connection and I do not know what Repair broken packeges menu entry does so I want to drop to ...
2
votes
1answer
1k views

How to Enter Recovery Mode from Grub

I have a dual boot installation with Windows 7 and Ubuntu 12.04 LTS. I am currently trying to solve this problem, where any mouse and keyboard input is ignored on the login screen. The apparently ...
0
votes
2answers
1k views

No icons on main screen on VirtualBox

I've tried everything, I've uninstalled and reinstalled, I've tried adding guest additions, nothing is working. EDIT: I should also add I've been using this guide to getting VB set up: ...
1
vote
2answers
544 views

Stuck at boot screen: checking file system stage

I cant login to Ubuntu. The splash screen stuck after checking file system. I used "storage device manager" (pySdm) to mount drives at boot time and also changed some options in it (which I can't ...
1
vote
1answer
720 views

Ati driver with HD7470M laptop screen backlight not working

I need to install the ATI proprietary driver on my laptop (Asus K54HR) as I use it for gaming. My problem is, it doesn't matter what I try, I have always the same result black screen and I have to ...
0
votes
0answers
643 views

How to exit recovery console? [duplicate]

Possible Duplicate: How to exit the recovery console? I upgraded my Ubuntu to 11.10 two days ago and by accident I started on recovery console mode and now I cannot get out of it. I tried ...
0
votes
1answer
252 views

nvidia 840m driver problem with kubuntu 14.10

I'm having some trouble installing the 346 driver on Kubuntu 14.10. After I followed this tutorial and after I reboot the system (without anything saying that I must do that after installation), It ...
0
votes
2answers
238 views

How to reset ubuntu to default display settings after failed nVidia driver install attempt?

This is the same dreaded story in Ubuntu with nVidia drivers ... I got a new machine with the K2200 nVidia card in it and now I'm unable to boot again after installing the latest nVidia drivers for ...
-1
votes
1answer
198 views

ubuntu throws me back to login screen

When I try to login to my system I am automatically thrown back to the login screen.I tried ctrl+alt+f1 but I got an error named 'signature error' Please help.... I'm using Ubuntu ver 14.04
1
vote
1answer
247 views

Kernel Panic - not syncing on Ubuntu 12.04

Yesterday I was updating my ubuntu from 10.04 to 12.04. I have a laptop, a compaq presario v6000, with that system only: One HD for Linux, no virtuabox, and so on. For update my Ubuntu I used the ...
0
votes
1answer
142 views

Is it possible than my user disappears from sudo?

That happened after I managed to install Virtual Box. I found a part of the answer here : http://ubuntuforums.org/showthread.php?t=1376802. I added my user to another group and then lost my user to ...
0
votes
1answer
130 views

Ubuntu server 14.4 not booting

After uninstalling gnome desktop,My ubuntu server not booting.I am getting the following error. I am new in ubuntu.please help me.
1
vote
1answer
101 views

Hardware Installation or Mod

If I need to modify a piece of hardware, such as a Video Card (failing), will Ubuntu automatically find and install the drivers for the new card on reboot or will I have to reinstall the OS to ...
1
vote
1answer
125 views

ubuntu 14.04.2 LTS installation problem

I installed ubuntu 14.04.2 LTS on external hard disk. My main hardware is: computer Acer Aspire 4530 pre installed with windows vista home basic. Graphic card by nvidia GEForce 9100M G. After ...
0
votes
2answers
86 views

No sudo or root access anymore [duplicate]

I'm afraid I locked myself out of the sudo/root options. The one account that had sudo rights now reports that it doesn't have these anymore. How can I restore this? Do I need to use a live stick?
0
votes
1answer
77 views

How to boot to terminal (ubuntu 12.04/gtx660Ti)? [duplicate]

trying to install CUDA for my ubuntu 12.04LTS. Installed the NVIDIA drivers for GTX660Ti but haven't yet run the updates. The manual for CUDA says I should now move to a tty via Ctrl+Alt+F1 but that ...
0
votes
2answers
51 views

How can I boot to linux command line from GRUB? [duplicate]

I botched a gnome install on my virtual box and now when it boots it just hangs up at a black screen. I wante to get back into a command line and uninstall/reinstall gnome...
0
votes
1answer
47 views

Missing dependencies - Can't insall Mutate launcher

I'm trying to install the mutate launcher on Ubuntu 14.04, but I'm having problems with all the methods suggested in the readme. If I use the ppa method I receive: Reading package lists... Done ...
0
votes
1answer
42 views

Not able to login into ubuntu 12.04

I am now using ubuntu 12.04. I have problem with login. It wait me for log time even though I have enter right password.And nothing happen after waiting. I try to login from guest account but same ...

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