0
votes
0answers
754 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
225 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
50 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 ...
270
votes
11answers
918k 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 ...
61
votes
16answers
111k 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 I ...
78
votes
7answers
37k 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 ...
33
votes
5answers
13k 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
2answers
169k 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
2answers
19k 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 ...
6
votes
1answer
21k 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 ...
2
votes
2answers
15k 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?
10
votes
3answers
2k views

ZSH removed, cannot relogin

So I have install zsh and I didnt like it. so I did apt-get remove zsh From that point I cannot relogin, i click my user.. and then it just go back to the login screen. I can only login with the ...
5
votes
1answer
38k 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)
3
votes
2answers
17k 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
2answers
15k 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, ...

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