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-1
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0answers
26 views

Linux Ubuntu Cylon [on hold]

I would like to know if there is anyone who could help me with the newest Ubuntu operating system. I'm having trouble connecting to our network via wifi. According to me Linux should be able to ...
0
votes
0answers
10 views

What is cost of kernel-mode switch on Ubuntu?

What is the cost in CPU cycles of a kernel-mode switch, so from user mode, to kernel mode and back to user mode, on Ubuntu?
0
votes
0answers
40 views

Create virtual USB Drive from Partition to run Live CD

I'm trying to install android_x86 on a separate partition that was created before installing 14.04. Just for testing experimental reasons, I created a 32gig partition to use as a virtual usb per to ...
0
votes
1answer
19 views

How to shutdown an ubuntu VM for 5 mins and then restart after 5 min automatically

I would like to shutdown a VM which is running Ubuntu 12.04LTS , and it should come up after 5 mins . Can this be done using command line ?
-1
votes
0answers
25 views

Why does Linux has less possibility of getting affected by viruses? [duplicate]

As a general question for any linux distribution: Why does Linux has less possibility (or probability) of getting affected by viruses, compared to Windows? Please elaborate your answer.
0
votes
1answer
67 views

I can't add myself(default user) in sudo group in ubuntu [duplicate]

I accidentally changed my primary group using the following command. sudo usermod -g localgroup shantanu #shantanu is my username I interrupted this process as soon as I realize what is happening. ...
0
votes
0answers
18 views

Non Sudoer Access to a Kernel Module

Is it possible to access a kernel module if a user is not sudoer? I am trying to access a KVM, which is kernel module, as non-sudoer but I am getting an error: Could not access KVM kernel module: ...
0
votes
0answers
15 views

Grub, linex and windows 7 [duplicate]

I have grub, Linux, and windows 7. Someone installed grub and Linux on my computer. We had partitions. Now I got rid of the partitions and Linux. The problem is when I turn my computer on now I get: ...
0
votes
0answers
27 views

How to create filesystem with nfs for User Mode Linux

I trying to debug user mode linux and have referred this Wiki for it. how to build and configure kernel and file system for UML in Ubuntu 11.10? but how do I add support for NFS into the created ...
0
votes
3answers
37 views

Help me to know ubuntu [closed]

Please help me to find the way to know about Linux (Ubuntu) and everything associated with that. I want to know about the internal working of Ubuntu and how to manage it. I am a computer student and ...
1
vote
0answers
36 views

I can't change the username?

Whenever I'm trying to change the username I get this error: usermod: cannot lock /etc/passwd; try again later What's the solution for this?
0
votes
1answer
1k views

“dmask” and “fmask” mount options

I tried this command to mount manually : sudo mount -t vfat /dev/sdb1 /media/external -o uid=1000,gid=1000,utf8,dmask=027,fmask=137 I am not getting what dmask and fmask does here. I know they are ...
0
votes
0answers
31 views

Save Screenshot does not not appear when I press the Print Screen button

"Save Screenshot" does not not appear when I press the Print Screen button. What should I do in order to see "Save Screenshot"?
0
votes
1answer
30 views

I cannot change between Windows VM and Linux Host

When I open my Virtual Windows Machine I cannot leave the screen and go to my Linux system. I cannot minimize my WM window. How can I fix this problem?
0
votes
0answers
9 views

installing build application framework

I get this message while installing cruise control: Cannot construct net.sourceforge.cruisecontrol.build loop information I need help to work this out.
2
votes
0answers
97 views

Difference between FUSE and VFS in linux?

What is the difference between VFS [Virtual File System] and FUSE [File System in User Space] in linux. I think, most of the popular OS today support VFS feature. I recently had a chance to go through ...
0
votes
1answer
40 views

How to get the database details and mail configuration file in ubuntu 12.04.2 lts?

I am new to ubuntu 12.04.2 lts.I need to get the database details and mail configuration file & where we install the files & locations of file paths in ubuntu 12.04.2 lts.for my question i ...
-2
votes
2answers
58 views

How do i go from linux mint 15 to Ubuntu? [duplicate]

I have linux mint 15 and want to uninstall that and use Ubuntu, i am real new to the whole linux OS. Please help me out if you can!
1
vote
0answers
21 views

Need to remove Metasploit from my Ubuntu 12.10 system [duplicate]

Tonight I installed Metasploit in my Ubuntu 12.10 it did not work properly, so i removed it by executing the following command in terminal sudo rm -r /opt/metasploit now when i try to re-install ...
2
votes
1answer
107 views

can't boot past login screen

I'm new to ubuntu. I just installed 12.10 last night and was installing some applications. I was working on installing wine. When I entered a command from online trying to figure it out the command ...
3
votes
0answers
224 views

User Mode Linux on ARM

I usually use UML but seems ARM architecture doesn't support it. Can I use UML on ARM? Before this I shared tiny servers with my friends. Now, I bought ARM based server. Anybody knows how to use UML ...
3
votes
2answers
3k views

How to set Value of JAVA_HOME variable

My /etc/profile code is: # /etc/profile: system-wide .profile file for the Bourne shell (sh(1)) # and Bourne compatible shells (bash(1), ksh(1), ash(1), ...). if [ "$PS1" ]; then if [ "$BASH" ] ...
1
vote
1answer
523 views

Terminal running with superuser

How can activate the terminal to be run as superuser. I don't see the icon nor know the command line to do so
0
votes
2answers
47 views

No internet - please help?

I just got Ubuntu and I am really really really a linux novice. I can't get the wireless to work? I played around with it until I saw it says "wireless firmware missing" - Hardware address ...
1
vote
2answers
559 views

Problems with run from USB installation creation and lack of option to run from USB

I wanted to use and try Ubuntu from a USB flash drive so I used the Universal USB installer from PenDriveLinux. I selected ubuntu-12.04.1-alternate-amd64.iso since I have a 64bit processor on an HP ...
2
votes
4answers
9k views

How long does it take to compile a kernel (linux 3.2.5)? [closed]

How long does it take to install kernel (linux 3.2.5) on 12.04 using make install -j 4 command? My terminal is displaying this for around 40 minutes now. root@user-desktop:/usr/src/linux-3.2.5# make ...
0
votes
2answers
5k views

Regarding “Host key verification Failed”

I use Ubuntu 10.04 in 2 virtual machines. In one machine I have installed Hudson and another machine is to run klocwork. Scenario is when I trigger a build in Hudson, the script has to run successful ...
1
vote
2answers
180 views

How can i add the content of a file in the starting of another existing file?

how can i add the content of a text file in the starting of another text file? here is the scenario. there are 3 file named f1 f2 f3. all of three have some text content. how to add the content of ...
0
votes
1answer
1k views

how to grant file permission to /dev directory permanently [closed]

I have a file /dev/ttyS0. And every time I boot, Its file permission is changed to default (unwritable) by the system. So, i have to run chmod command every time i boot-up. How to change it's file ...
1
vote
0answers
1k views

Building User-Mode-Linux UML kernel from source [closed]

I have tried building a user-mode-linux kernel using both the source from the Ubuntu repository using apt-get and by using the git of the generic kernel. The source code from Ubuntu's repository ...
1
vote
0answers
422 views

How do I ssh into a User Mode Linux process [closed]

I have managed to startup a User Mode Linux session (see How to correctly start a Ubuntu user-mode-linux from the command line) although I'm still having an issue on startup I'm able to get networking ...
6
votes
2answers
4k views

How to correctly start a Ubuntu user-mode-linux from the command line

I have installed the package user-mode-linux for the UML kernel. I have built a user mode linux filesystem using the commands at: http://kuparinen.org/martti/comp/ubuntu/en/uml.html I have even tried ...