These questions are about Linux in general -- NOT specific to a particular distribution. If the question just happens to be in a Linux environment, please specify your Linux distribution in the body of your question, but do NOT use the /linux tag.

learn more… | top users | synonyms

37
votes
3answers
18k views

A list of available DBus services

Is there such a thing as list of available DBus services? I've stumbled upon a few (like those provided by NetworkManager, Rhythmbox, Skype, HAL). I wonder if I can find a rather complete list of ...
2
votes
0answers
212 views

Screen keeps dimming on Power (Dis-)Connect

I would like to disable the automatic screen dimming when I plug in our out my power adapter. Every time my laptop switches between battery/ac, my screen dims even though I have disabled it in every ...
5
votes
1answer
186 views

How to create external, filesystem, read-only entrypoint for process internal memory?

Target platform is GNU/Linux. Let's say I have: void *p I want to be create entrypoint for that internal memory in filesystem like: /tmp/my_entry_point And I'd like to be able to read that ...
4
votes
2answers
1k views

Can't SSH via password to a Remote Server

I've successfully VPNed to my University server on a Fedora 17 Linux terminal. $ sudo openconnect -u UNIVERSITY_USERNAMEID sslvpn.nameofuniversity.edu [sudo] password for PCUSERNAME: Attempting to ...
3
votes
2answers
553 views

Print console colors

Wrote a bash function to display the console colors. But, it seems some of the colors are not possible to show that way! (?) Also, note the strange "bright black"! (Note: The below screendump is of ...
3
votes
1answer
1k views

Trapping “READ FPDMA QUEUED”

Recently I encountered a kernel message: ata3.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x0 ata3.00: irq_stat 0x40000008 ata3.00: failed command: READ FPDMA QUEUED ata3.00: cmd ...
8
votes
4answers
1k views

Understanding different Linux Distros

I'm having a little bit of confusion when understanding linux based OS's. When I download the newest version of Mint and Ubuntu, aren't they the "same" at their core (kernel)? It just seems that they ...
5
votes
1answer
5k views

mmap() failed: Cannot allocate memory - how do I find out who's complaining?

mmap() failed is popping up in my .xsession-errors in bursts. But there's no indication about what application it is failing with. How do I look into this after it has happened? I usually discover the ...
1
vote
0answers
970 views

Which of VPN or IPSec or xxx can I use here?

I'm renting a dedicated server which has a fixed / static IP and I'm using this server / IP for my business. I'm hosting a webapp / webappserver on it (Apache + Tomcat) and I've also set it up as a ...
5
votes
2answers
4k views

What is /dev/xvde1?

I'm having to do with an OpenShift RHEL Linux installation running on Amazon EC2. In the filesystem, there is a device file named /dev/xvde1 mounted to / ... and a device file named /dev/xvde2 mounted ...
2
votes
2answers
2k views

Gnu Parted Error in HardDisk of Linux?

Anyone help me, why the error getting when excuting the fdisk -l command in linux. # fdisk -l /dev/sdb WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support ...
7
votes
2answers
9k views

Why Bash unable to find command even if $PATH is specified properly?

I am specifying path to my command in the file /etc/profile: export PATH=$PATH:/usr/app/cpn/bin My command is located in: $ which ydisplay /usr/app/cpn/bin/ydisplay So, when I performing "echo ...
3
votes
2answers
5k views

Ubuntu password policy

I want to set the system-wide password policy on an Ubuntu 12.04 LTS server. Googling around, a lot of people point to this (very old) document: ...
2
votes
2answers
556 views

How do I route a spare network interface through an SSH tunnel?

I just bought a Raspberry Pi and I am wanting to route an ad hoc wireless network interface fully through an SSH tunnel that was created using another wireless interface. I want to do this so that I ...
4
votes
4answers
4k views

Recovering overwritten LVM metadata

Yesterday I was trying using the Debian install in rescue mode in order to fix my Grub (The menu-item for Debian was suddenly gone). Now I wasn't able to fix it and didn't have a lot of time, so I ...
4
votes
1answer
100 views

Transform directory structure

I have the following folder structure root folder |-al2 |- GER.zip |- ENG.zip |-ww |- GER.zip |- ENG.zip and so on. The folder names are random strings. I want to sort the files in ...
4
votes
1answer
320 views

Socksifying a qemu-kvm using tsocks

I'm trying to socksify a qemu-kvm using tsocks, but I have no success. I don't know if qemu access directly the hardware, skipping the OS or something like that, but I wasn't able to do this feat. ...
11
votes
3answers
383 views

Where to find explanation of kernel processes?

I want to know about kernel processes, like [migration], [kswapd], etc. Where are kernel processes like these documented?
1
vote
1answer
651 views

Eglibc cannot compile suffix of object files while trying to cross compile

I'm currently making my way through Trac's CLFS book. When trying to configure the 32-bit version of EGLIBC-2.15, using the options: BUILD_CC="gcc" CC="${CLFS_TARGET}-gcc ${BUILD32}" \ ...
-4
votes
3answers
3k views

Running Visual Studio 2010 in Linux

Is there any possible way to run Visual Studio 2010 in Linux (Red Hat)?
12
votes
1answer
18k views

Delete specific line number(s) from a text file using sed?

I want to delete one or more specific line numbers from a file. How would I do this using sed?
8
votes
1answer
985 views

Is it possible to use OpenCL on a minimal OS without X?

I'm looking to use OpenCL for Bitcoin mining. Obviously it is technologically possible to use a GPU and OpenCL without X; Windows machines do it all the time. I'm wondering if there is a way to use ...
0
votes
1answer
75 views

Trying to update Bugzilla on Fedora 16 using YUM

I am currently running Bugzilla version 4.0.6 and would like to update to 4.2. I have tried yum check-update and yum update bugzilla but it is not updating. Am I doing something wrong? If not, is ...
20
votes
3answers
7k views

Why is Linux NFS server implemented in the kernel as opposed to userspace?

I was just wondering why the Linux NFS server is implemented in the kernel as opposed to a userspace application? I know a userspace NFS daemon exists, but it's not the standard method for providing ...
1
vote
0answers
325 views

Force mysqldump encoding

I have two mysql servers, viewed from the same mysql client, right_server is rendering the french characters correctly, wrong_server is not. Encoding is the same : $ mysql -h right_server -NBe "SHOW ...
6
votes
1answer
2k views

What is “SYSV00000000”?

In my dmesg this appeared when my window manager (xfwm4, part of XFCE) crashed: xfwm4[3936]: segfault at 7f3c7c523770 ip 00007f3c7c523770 sp 00007ffffea1ee28 error 15 in SYSV00000000 ...
3
votes
1answer
4k views

file system uid and gid in linux

I came across a linux kernel tutorial and there they talked about 4 pairs of identifiers and one of them was file system uid and gid. Could someone explain me what it is and how it is different from ...
6
votes
1answer
1k views

Run an application with different TimeZone

I have an windows application (Under Wine) that only works when I change timezone to NewYork's TimeZone. with Any other zone it doesn't start!! So, Is it possible in Linux to run an application with ...
4
votes
2answers
402 views

How to safely shutdown computer during boot sequence?

Due to a bug my computer has stopped in the middle of the boot sequence, just waiting. If I type anything, it prints stuff like ^[[B. I do not want to damage the files on the computer by pressing the ...
5
votes
1answer
359 views

Virtual kernel memory layout: negative values [closed]

i'm porting drivers for omap3-board to 3.5 kernel. When I start board I see it: Memory: 256MB = 256MB total Memory: 253564k/253564k available, 8580k reserved, 3226106074K highmem Virtual kernel ...
5
votes
1answer
254 views

Specify Monitor For Linux Console

Does the kernel, framebuffer, or a framebuffer driver (uvesafb) have an option to specify the video-card output to use? The kernel only outputs to one monitor: Kernel message buffer (before and ...
3
votes
1answer
342 views

How does the Linux file structure work?

I see the different folders bin, dev, mnt, proc, srv, sys, etc. What are the properties of all these different folders? What are there purposes? Are there files in some of them that I should not ...
4
votes
2answers
3k views

How to install Gentoo with VirtualBox and use it as native OS later?

I'd like to try Gentoo (again...). I know that many steps require a lot of configuration and much more time. I'd like to do something else on computer during long waiting, because of that I would like ...
2
votes
0answers
985 views

Black screen on resume from suspend to RAM

This is my first post so please bear with me. I have Xubuntu(12.04) and Fedora17KDE spin installed on my netbook. While Xubuntu wakes up neatly, Fedora gets stuck at the black screen while resuming. ...
1
vote
2answers
461 views

Program to manipulate Samba shares (net.exe equivalent)

Is there an equivalent to the NET.exe suite for linux systems with which I can do net view queries for example?
0
votes
2answers
2k views

Force getaddrinfo to use IPv4

The man page says: The getaddrinfo(3) function is not limited to creating IPv4 socket address structures; IPv6 socket address structures can be created if IPv6 support is available. These ...
1
vote
1answer
122 views

Displaying just an image instead of text

Is it possible to compile the linux kernel so that when it is booting up, instead of the boot up text to display and image and ONLY an image (like osx)?
-2
votes
3answers
843 views

Best live distro for working with files [closed]

What is the most savvy Live Linux Distro for working (open, coping, moving) with files (text documents, pictures, music files and videos). Typical case: We have a computer (mostly with Windows and ...
5
votes
1answer
1k views

What is SSTP vpn server and how can I run one?

I've read a couple of L2TP and PPTP tutorials on the net and there are just dozens of "running PPTP/L2TP on Linux" guides available out there and I successfully made packages like open-swan or pptpd ...
2
votes
3answers
148 views

Finding out how many programs I have not installed from a list with grep/awk in archlinux

I want to see how many packages from a list are not installed. I use archlinux, so I use pacman -Q to determine if a package is installed. If it is not installed, it returns a message like: "error: ...
9
votes
2answers
4k views

What is Arch Fallback in Arch boot menu?

What is exactly "Arch Fallback" in the Arch boot menu?
8
votes
1answer
449 views

Is there a checklist for getting the “beep” program to work?

Debian has a program called "beep" available, that lets you make the computer beep at whatever frequency or time you want. http://packages.debian.org/wheezy/beep The problem that many people seem to ...
2
votes
1answer
7k views

How to get list of available wireless networks without being root

I would like to get a list of all the wireless networks. iwlist wlan0 scan | grep ESSID This will only show me the wireless network I am currently connected to. When I run the command as root, it ...
8
votes
1answer
6k views

Other than Alt + Shift to switch keyboard layout, any other Xorg key combinations?

All I can find about XkbOptions was: Option "XKbOptions" "grp:alt_shift_toggle" Seems I can only use alt+shift combination to switch keyboard layout, any other keys that I can use ?
5
votes
2answers
6k views

What command can be used to force release everything in swap partition back to memory?

What command can be used to force release everything in swap partition back to memory ? Presume that I have enough memory.
10
votes
1answer
7k views

Creating a bootable Linux installation USB without unetbootin

I want to install Scientific Linux from USB. I don't know why unetbootin doesn't work but I am not curious to find out: after all, I transferred to Linux from Windows to see and learn the underlying ...
1
vote
0answers
492 views

Debian sheevaplug internet not working

I have a sheevaplug with debian 5.0..internet was always working fine until today. I have a bunch of pcs connected via wireless to my router and internet works fine. From today though my debian won't ...
8
votes
1answer
4k views

dd: writing '/dev/null': No space left on device

I am reading a 550MB file into /dev/null and I am getting dd: writing '/dev/null': No space left on device I was surprised. I thought /dev/null is a black hole where you can send as much as you ...
2
votes
0answers
129 views

Busybox exits instantly printing 'SIGUSR1'

I was tinkering with my router these days. It runs on MIPS core and the OS is based on Linux. But the builtin busybox is very limited. I managed to export a binary of busybox compiled for MIPS through ...
4
votes
0answers
422 views

Setting Framebuffer splash resolution when exiting X

I installed a copy of BackTrack 5 R2 (Ubuntu 10.04) to my HDD and dual-booted with Windows 7. After a bit of tweaking I set about updating the native Intel drivers because it was only allowing me to ...