Ubuntu is a Linux distribution with an emphasis on ease of use and installation. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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vaio grub removal after default windows setup

After installing default factory windows xp from VAIO VGN-NR, and hence removing the Ubuntu on its hard drive, the grub does not allow the windows to boot up properly, giving the prompt: "no such ...
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1answer
6k views

Are Ubuntu PPA Repositories usable on Debian wheezy?

I'm using Debian wheezy and i wonder are Ubuntu PPAs hosted at Launchpad safe to be added & used on Debian?
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1answer
1k views

private memory calculated by pmap, a combination of virtual memory size and resident memory size?

You can use the ps command to get the virtual memory size and the resident memory size of a process: $ ps aux | grep apache2 USER PID %CPU %MEM VSZ RSS TTY STAT START TIME ...
2
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1answer
744 views

Alternatives to Unity panel

Is there an alternative to Unity (top) panel that supports Mac style application menu integration? I'd like to have a Unity-like user experience on Debian.
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0answers
3k views

Permission denied when Ubuntu is attempting to mount to a remote Windows share folder

Fellow guys, I encountered the error when I's mounting my Ubuntu server to a remote Windows share folder, the following is the error on terminal after I typed command line 'mount -a': mount ...
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2answers
178 views

Package name suggestion in fedora

In Ubuntu when an app is not installed and in Terminal you type for example gvim it says that this app is contained in package vim-gnome and try installing that but in fedora that doesn't happen with ...
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2answers
8k views

Failing on apt-get update

Very recently when I have been attempting to check for updates on my laptop (Ubuntu 12.04), the check fails. sudo apt-get update: W: GPG error: http://us.archive.ubuntu.com precise Release: The ...
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2answers
419 views

Raid5 Device Has Less Space Than Expected

I have 3 3TB drives, and have raid5ed them together. I would expect to get a resulting device around 6TB. The command I used: mdadm --create md0 --level=5 --raid-devices=3 /dev/sda1 /dev/sdb1 ...
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1answer
63 views

Recommended app for elaborating “System Charts” out of a Makefile in Ubuntu?

I'm looking for an application that is capable of plotting graphically as boxes on a chart (System Chart) all the components and operations of a Makefile so that the chart be taped prominently to the ...
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3answers
788 views

Memory Mapping Linux 3+ kernel

Can some one help me understand how memory mapping is done Gone through this Why does Linux show both more and less memory than I physically have installed? but still i am not able to understand ...
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1answer
106 views

Installed Win7 after Ubuntu, Win removed Ubuntu boot option [duplicate]

Completely 100% new to Linux. I recently partitioned my drive to run Windows and Ubuntu simultaneously. Ubuntu installed fine, but then I installed Win7 and suddenly Ubuntu disappeared from the boot ...
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0answers
44 views

getting “//” after the URL

I'm running nginx web server. I have not written any rule to redirect abc.com to www.abc.com, I have just added both in server_name directive which looks like, server_name abc.com www.abc.com; My ...
0
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1answer
112 views

install a kernel module into BeagleBoard (BB)

I want to install a kernel module (For example "Hello world") on the BeagleBoard(BB). (The installed OS on the BB is an Ubuntu Linux). If anybody already worked on this could you suggest me a step by ...
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1answer
464 views

Linux signals logger

I'm looking for a signals logger for the Linux kernel, without patching of kernel. I found many articles with patching, but I am not interested in that. I'm running default Ubuntu 13.04. # uname -a ...
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0answers
2k views

Can't connect through ssh?

I'm running two OSes, one (Backtrack 5) as a guest in VirtualBox and the other (Ubuntu 13.04) as the host. Now when I connect to my host through ssh (host-only connection): $ ssh 198.168.*.* -vvv ...
4
votes
2answers
5k views

sending email to IP address via postfix

My friend and I have configured two Postfix mail servers on our laptops. We succeeded in sending mail to a real network (to some Gmail accounts) from our computers; that was the easy part. We now ...
2
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2answers
877 views

Can I recover from a system disk error on Ubuntu Linux?

I got a strange looking warning message in Windows Vista about a potential hard disk failure. I say strange because I have never in my life seen that type of warning in Windows. It suggested that I ...
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1answer
474 views

UDev automounting drives as 'usbhd' regardless of type and name on Ubuntu 12.10

I have 3 drives which I use for storage on my system. Here are their mounting points in /etc/fstab # <file system> <mount point> <type> <options> <dump> ...
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4answers
12k views

SSH not working from one specific computer

I can connect from every other computer on the LAN, as well as externally. It connects fine to other machines running SSHD. When trying ssh with verbosity, I get the following readout: $ ssh -vvv ...
5
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2answers
2k views

SSH tunnel through middleman server - how to connect in one step (using key pair)?

My question is basically how to turn my existing two steps into one step. I have a working SSH tunnel set up between two computers using a middleman server like this: ...
1
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1answer
755 views

Unable to recognize old interfaces after motherboard update

I updated motherboard on x240 computer node, now the ethernet interfaces show up as eth2 and eth3 previously it was eth0 and eth1. I tried to delete /etc/udev/rules.d/70-persistent-net.rules file but ...
2
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1answer
111 views

How to install Ubuntu on a system where is already Mint and Windows 7?

I have already installed Linux Mint on Windows 7 so now I have dual boot with Linux Mint and Windows 7. They are both on diferent partitions. I have 1 free partition left. The question is how to ...
2
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0answers
179 views

Ubuntu : puppet f5 device config : Partition '' doesn't exist

This is a Puppet question that I've posted on the PuppetLabs forums with no response. I'm also posting here because I'm hoping that with a wider audience I might find someone knowledgeable re Puppet ...
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6answers
6k views

pgModeler installation - Dependencies error

I'm trying to install the pgModeler. But I'm getting stuck. I have pgModeler at /opt/pgmodeler-0.5.2/ I have all the dependencies: Qt 5.0, Pg and the others. When I run the pgmodeler with ...
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2answers
268 views

Migrate Ubuntu to bigger HDD

I have a multi-boot system and want to push my Ubuntu installation to a bigger partition on the same hdd, because I want the system to have more memory available. What I know so far is I can clone ...
0
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1answer
2k views

How can I set the TTY font size manually in Lubuntu? [duplicate]

I'm configuring some minimal Lubuntu installs, which will run within VMs. They do not have window managers, and I do not intend to install any. I would like to increase the TTY font size so that 4 of ...
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1answer
2k views

Add Ubuntu to Arch linux Dual boot, Keeping Syslinux, without GRUB

Situation I have Arch Linux installed on /dev/sda1 (15GB/ext4). / and /boot are both on /dev/sda1 and /home is on /dev/sda2 (100GB/ext4). I made a 15GB/ext4 /dev/sda3 partition for Ubuntu. I ...
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1answer
14k views

vsftpd: 550 Failed to change directory

I'm using ubuntu 12.04. and ftp service I've installed vsftpd and it's working fine. But may I'm facing some user complexity. My system directory like: -/ --/home ----/rony --/vol When I list ...
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1answer
1k views

How to fail prerm script and preinst script with error message in Debian package

I structured my debian package in following way preinst script which displays EULA to user and ask for choice 'y' or 'n'. postinst script which install the package and updates the initrd image. ...
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0answers
172 views

How to stop application windows from shifting to workspace one after attaching dual monitor?

I'm using Unity on Ubuntu 13.04. I use arandr to configure my dual monitor setup. The problem is as soon as I apply my settings, the display resets and all application windows, which I had tediously ...
0
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2answers
124 views

Learning Ubuntu - Testing on Mac OS 10.7?

I'm a beginner in learning Linux. I know that there are many different distributions of Linux including Ubuntu. I consider Mac OS as a distribution of Linux, is that right? My goal in learning Linux ...
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2answers
3k views

How can I print unique line base on particular column value using awk? [closed]

I have a comma separated file with multiple fields. Example: candidate1,12,56,ATTG candidate2,45,90,ATTG candidate3,90,140,ATTG candidate4,2,36,AGCT So, does anyone know the answer?
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1answer
289 views

Dropbox, notify-send and OSD interfere with Ctrl-shortcuts

I'm using Ubuntu 13.04 with i3 4.5.1. When i3wm starts, Ctrl-C/-D/-K etc. are working fine. When I start Dropbox, notify-send or change the volume, all Ctrl-something shortcuts stop working. I can ...
2
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0answers
75 views

How to use Gnome's extensions

I have been trying to install some Gnome extensions from the site https://extensions.gnome.org. I get the dialogue asking if I want to install, but after I select yes, it fails silently. This is the ...
0
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1answer
866 views

Ubuntu 13.04 seems to randomly crash

I'm using an x64 distro of Ubuntu 13.04 on a Dell inspiron 1464, but it keeps crashing for no apparent reason. Took some pictures of the error screen (first picture is of one instance, the rest are ...
2
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3answers
340 views

Automated mounting for usb drives in linux

I have a five 4TB usb drives. I want to setup a mount point, /mnt/backups so that when I plug in any of those drives, they get automatically mounted to /mnt/backups. The problem is that when the ...
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1answer
235 views

Unable to install open CV in Ubuntu 12.04

I am trying to install openCv for learning purpose and then using it for OCR(Optical Character Recognition) but i am unable to install it in Ubuntu 12.04 I am following this link and able to carry ...
0
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0answers
296 views

Ubuntu change language encoding for file uploading

Previously we were running a Wordpress site on a Mac OS Server machine. We had several hundred images with Chinese characters for the image names. Now we're trying to migrate to a Ubuntu system and ...
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0answers
1k views

Why does resume from hibernation pause/hang?

I used suspend (to ram) for a long time, and it worked flawlessly. Recently, I started using hibernate (to disk) - not-quite-flawlessly. Hibernate-to-disk works (from the terminal, so far - as ...
3
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1answer
916 views

How can I figure out which pty's are from which qemu?

I'm running qemu's like this: $ sudo qemu -boot d -m 1024 \ -netdev tap,id=tap0 \ -device virtio-net-pci,netdev=tap0,id=vth0 \ -drive file=ubuntu.iso,media=cdrom,cache=none,if=ide \ -monitor pty \ ...
3
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1answer
471 views

Open luks-encrypted partition from virtual DomU LVM disk containing another LVM

I've gotten myself in a bit of a bind, here. A while ago I set up an encrypted Unbuntu 13.04 under Xen. It's virtual disk is an LVM LV. This LV was presented to the DomU as a (whole) physical disk ...
0
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1answer
115 views

Problem with wifi in Ubuntu

I'm not able to see (or access) my WiFi in Ubuntu. tharcisyo@tssd:~$ iwlist scan eth0 Interface doesn't support scanning. lo Interface doesn't support scanning. wlan0 Failed to read ...
2
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4answers
394 views

Why is the available space in my $HOME decreasing?

My OS is Ubuntu 12.04. As System Monitor shows, "free" for my $HOME is 1.6GiB, but "Available" is 222.7 MiB and is keeping slowly decreasing from around 750 MiB yesterday. I am not aware that I am ...
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0answers
400 views

What is the difference between RGB and YCbCr?

In my Linux Mint ATI Catalyst setup I have set YCbCr as default for Color Pixel Format? What is the difference? I subjectively think that RGB (Full RGB) is better for my eyes. YCbCr seems to be ...
0
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1answer
224 views

Do all distrbutions have the same drivers for ATI cards?

The problem is that my fan is too loud and working nonstop on my desktop. I have tried so far: Ubuntu 13.04, Linux Mint 15 and I had in both the same fan problem (nonstop working fan and very ...
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3answers
424 views

Change terminal prompt Ubuntu

I have cloned a git repository to a folder in my workspace: /home/jose/workspace/very-very-very-long-repository-name/ so when i browse to it in my terminal it looks like ...
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1answer
4k views

Equivalent of these commands in the following distros [closed]

These commands: dpkg -i apt-get install apt-get update apt-get remove apt-get dist-upgrade apt-get purge in these distros: Opensuse, Fedora, Gentoo, Arch, Slackware.
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1answer
4k views

Ubuntu / Unity attach script to Launcher

I recently downloaded IntelliJ IDEA and start the app by running . idea.sh. The app appears in the launcher while I'm running it, but for some reason when I right click on it I don't get a 'Lock to ...
3
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4answers
3k views

Crontab not working

I'm trying execute a basic shutdown crontab to run M-F at 10PM. So I did the following: sudo crontab -e Once inside of the crontab I added the following line: 0 22 * * 1-5 shutdown now The job ...
2
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0answers
1k views

Rotating a video (ubuntu 12.04)

I have a video, shot on my android phone, which I want to rotate 90 degrees clockwise for computer viewing. Here's what I expect should work: ffmpeg -i infile.mp4 -vf "transpose=1" -an -vcodec mpeg4 ...