Linux refers to the family of Unix-like computer operating systems using the Linux kernel. If your question is about a certain distribution only, use a more specific tag.

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Clarification on signals (sighup), jobs, and the controlling terminal

So I've read two different perspectives and I'm trying to figure out which one is right. 1) Some sources online say that signals sent from the controlling terminal are ONLY sent to the foreground ...
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537 views

Why is my portable WD My Passport drive not recognized?

My Western Digital My Passport portable drive is not recognized in OS X. It used to be recognized, but not anymore. It does not appear in /Volumes. The hard drive is recognized by a Linux machine. I ...
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274 views

How to properly use stunnel?

I'm trying to setup Wireshark ssl debugging, and to do this, I'm trying to follow instructions in this article. I'm currently at stunnel part, and I'm trying to execute sudo stunnel -p ps.pem -d ...
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101 views

stripping properties and personal information from .odt files on linux?

I have a few files that have fields of properties and personal information that I want to remove, the format is .odt. Basically, I want to strip out everything. What utilities are available for the ...
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1k views

Errors when installing jdk 1.7 in linux

When I am installing jdk 1.7 in Oracle Linux by using the following rpm -ivh jdk-7u9-linux-i586.rpm However I am getting the following errors, how can I resolve these errors and install jdk 1.7? ...
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47 views

Providing Access to a Whitelisted Server through OpenVPN

Ok, so there's a server A. This server is only accesible from another server B, with a given IP address. I want to install OpenVPN server on B so that clients connecting to this VPN can access server ...
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338 views

gparted unallocated entire hard drive

Here is my whole situation: I have a dual booted Windows/Ubuntu computer. In order to move from space from the Ubuntu partition onto the Windows partition, I booted into a live Ubuntu 10.10 CD and ...
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1k views

Does TRIM avoid the performance impact of mdadm RAID 1 on SSD?

It has already been mentioned in other questions that Red Hat recommends against using mdadm RAID 1 on SSD. Red Hat also warns that software RAID levels 1, 4, 5, and 6 are not recommended for use ...
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242 views

emacs ansi-term is very slow

I'm running emacs GNU Emacs 24.2.50.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.24.10) on Ubuntu 12.04. When I open an ansi-term (or term or multi-term) buffer, and use it for a few minutes, it ...
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261 views

Stream live audio with noise filter in Linux

I need to strip the noise from an audio source, but it needs to happen live. The resulting voice doesn't need to sound perfect, it just can't contain too much noise. I've read up about sox, but it ...
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279 views

Get Illegal Instruction error when booting Linux in VirtualBox, works fine when booted directly

I have a computer on which I am dual booting Windows 7 and Gentoo Linux (both 64-bit). I want to be able to load up my Linux installation in a VM while I am booted into Windows. I have installed ...
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46 views

Disable MathML output of eLyXer

eLyXer is a standalone LyX to HTML converter. In the resulting file, equations are formatted as MathML, and the file itself starts with an XML tag. This causes two problems: LibreOffice does not ...
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419 views

Synergy breaks copy (for paste) from Windows

I am running Synergy 1.4.10 on Ubuntu 10.10 as the server and on Windows 7 as the client. The problem that is happening right now is that the copy action on Windows has no effect to bring that text ...
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102 views

Iso_level3_shift key not working in Firefox (Linux)

Under Firefox (Firefox 3.6 and Iceweasel 10.0.9), my Iso_level3_shift key (= "Alt Gr" key) is not working. That means that on my azerty keyboard, I can't press some characters like @, |, and so on, ...
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91 views

graphic error on console

I have Linux on an embedded system. There is no graphic system, but I still have graphic errors. For example, if I type: ifconfig eth2 hw ether 00:0e:8c:d0:59:d2 I see: ifconfig eth2 hw ...
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316 views

mounting a multi-drive USB enclosure in linux

I have a OWC Mercury Elite 2-bay USB drive enclosure (OWCMEPT934AL2C). I have it set on "individual" settings for the disks, so the 2 disks show up as two separate drives on my Mac (no raid, or ...
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894 views

Persistence in KNOPPIX v7.0.4

I recently used the KNOPPIX DVD as a tool when re-installing my Windows desktop machine and it worked great so I've been doing some more reading to become familiar with it. I have the "KNOPPIX Hacks" ...
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254 views

ffmpeg/avconv crashes when video frame isn't expected size

I'm capturing my webcam using ffmpeg/avconv, but I keep running into this problem: The v4l2 frame is 828212 bytes, but 829440 bytes are expected And then it crashes. It should just skip that frame, ...
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413 views

Video Streaming to Linux from Windows Shares

I wanted to ask this question for a while now, and it may just be nothing, but it's bugging me like crazy. At the moment i have a win2008 server up, which has several dedicated shares for specific ...
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202 views

Why does cpu usage never reach 100%?

I have a dual-core processor. I'm running two instances of the program below: void main(){ int i; while(1){ i=i+1; } } I run TOP and CPU usage gets up to 97%, however it never ...
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424 views

Missing characters when printing in linux

I have a pdf that I was printing recently, and on the final printout there is a single character that doesn't print. It is the greek letter phi, and the pdf was built with pdflatex. The phi shows up ...
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123 views

Linux USB to work as CD ROM in OS X

I am working in driver development in Linux USB modules. I have written a driver for USB and it is working as CD ROM in a Windows machine. I made the first partiton as fat32 modprobe g_hidmass ...
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250 views

How do I use wine's new multi-channel audio support?

Wine supposedly added Multi-channel support to the ALSA driver in a recent release. However, I haven't found any documentation about it or any reports of anyone successfully using it. I have 5.1 ...
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168 views

How can I boot directly into an application?

How can I disable and hide all menus for a specific user and start only one program? What I mean is, I would like my user to login and see only the background image and the one program that the ...
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5k views

How to force mdadm to stop RAID5 array?

I have /dev/md127 RAID5 array that consisted of four drives. I managed to hot remove them from the array and currently /dev/md127 does not have any drives: cat /proc/mdstat Personalities : [linear] ...
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212 views

Model M Keyboard inputs incorrect characters after logging in to Fedora

I recently bought a 24 year old IBM Model M keyboard. From what I gather, it'd been left on a shelf for the last 5 years, so you can imagine the amount of dust dirt and crap that was on it. Before ...
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135 views

Pysdm has disabled my ability to write to my storage partition

I have a dual boot setup with Windows 7 and Mint 13 Cinnamon. As well as their respective partitions, I also have a large one (NTFS) for storing all my music, videos, documents etc. I downloaded ...
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758 views

Samsung 32" LCD TV as PC Monitor, resolution problems

I have a Samsung LE32C450 TV connected to my Nvidia 7300LE via the VGA connector. I managed to obtain 1360x768 resolution (after some work, NVidia driver, Nvidia-settings, xrandr, cursing to every ...
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212 views

Linux: cat /dev/video0 TS into some kind of ring puffer

I want to cat a /dev/video0 device output (Transport Stream) into a temporary ring buffer. In fact i do not want that the file is growing over the time. Simultaneously access is not possible. So the ...
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116 views

Windows removes its own drive from bios, but appears in Linux

I'm having a strange problem. Some background: I have two sata drives in this computer. The first one has a boot partition and two NTFS partitions (one Windows 7, one storage). The second drive has ...
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262 views

Linux Mint 13 (64) freeze with USB modem

I have an iBurst modem and a driver I installed from here: http://lelanthran.com/deranged/?p=132 I'm running Mint 13 (64 Bit) - so it's the 3.2 kernel version. After plugging in the USB modem - it ...
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726 views

AC3 & DTS Output Produces Buzzing/Noise Using a52 ALSA Plugin in Pulseaudio

Note: I hope this is the right site to ask it on, as I'm using ubuntu 12.04 64bit but assumably this is a general linux/alsa configuration question. I've followed the guide at ...
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562 views

Samsung NP530 CPU stuck at 55 C temperature

I have run into heating issues on my ultrabook running Linux. Idling temperature for Win7 is ~45 C, while in Linux it is ~55 C. Output of sensors rohit@raijin ~ $ sensors acpitz-virtual-0 Adapter: ...
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1k views

Need help mounting device : mount -t ntfs-3g mount failed: No such device

I'm using ophcrack-vista-livecd-3.4.0.iso on Windows 7 to recover a password. When I tried using the software, I got a message saying "Tables Found" along with another message saying "No partition ...
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229 views

Slow down clock/timer of a Linux program

Sometimes a Linux program requiring fast user interaction/manual dexterity runs too fast for me to keep up. Examples include video games and video players that don't let you control the speed. How ...
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338 views

Alternative (pref. mature) Linux PAM authentication methods?

I'm looking for alternative, non-keyboard-password authentication methods to unlock my laptop. Whatever authentication it is, it should be quick and convenient to perform and relatively secure. Yes, ...
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0answers
319 views

Making grub boot into chroot directory

I am trying to make grub boot into a chroot directory /slack containing a Slackware Linux installation. This directory was created by issuing the following command: installpkg --root /slack a/*.t?z ...
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0answers
56 views

Linux VM can not connect to the internet

I'm trying to set up an virtual server with connection to the internet. When I start a ping to the local network, there are no problems. When I try to ping an address from the internet, it shows that ...
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301 views

Multiple SSH Connections over different connections

I have a Linux box with a couple of 3G/HSDPA modems, seen as network connections, and i would like to get each to connect to a server over SSH. The server could be the same server, and i would need ...
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327 views

Dynamic/Static CPU Frequency Scaling

I need to manipulate frequency of each core in my I7 processor. There is a way to do it in Debian (http://wiki.debian.org/HowTo/CpuFrequencyScaling). But I want to do it on Linux Fedora and Window. ...
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1k views

Kernel data types u8, u16, u32, u64 not resolved

I am trying to compile some files related to wireless subsystem (mac80211) which use datatypes u8, u16, u32, u64. These are not resolved. The header file being referred to is linux/types.h which is ...
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393 views

XRDP multiple log in sessions

I use xrdp, and I am trying to have multiple sessions with the same user (ABC). I do not have any connection issues. What's happening is when I open the second session it just mirrors whats ...
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0answers
3k views

Default permissions with setfacl

Just started using setfacl to assign permissions for a specific group to /var/www/html (CentOS 5). Files in this directory are 640, root:apache. However, I've noticed that after doing something ...
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0answers
183 views

Capture key events at system level to control e.g. alsamixer

In Linux window managers, it is easy to define actions for key events - e.g. in openbox: <keybind key="XF86AudioRaiseVolume"> <action name="Execute"> <command>amixer set ...
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178 views

What is sd(exec) process and why is it consuming 100% CPU time?

I recently installed Fedora 16 with XFCE. Occasionally, a process named sd(EXEC) shows up and eats up all of my CPU time (CPU maxes out at 100%). Unfortunately, it cannot be killed even with kill -9 ...
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347 views

problems encoding 1080p60fps MTS files with ffmpeg to DNxHD proxy; plays too slow in NLE compositor window.

I was advised to encode my HD files with ffmpeg to DNxHD proxy with 220M bitrate rather then 45M so the image doesnt have too much artifacts. I reduced the framerate to 29.97 fps when I encoded the ...
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363 views

force upperdir overlayfs to re reread/reload lowerdir

am having the following problem with an overlayfs: I can mount an overlayfs fine using the following line in my etc/fstab none /home/student overlayfs ...
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408 views

Bluetooth mouse won't reconnect after reboot or wake from sleep in Debian squeeze

I have a Microsoft Bluetooth Notebook Mouse 5000 and have experienced the same problem with two laptops, a Sony Vaio Z, and now a Lenovo Thinkpad T420s: I can pair the bluetooth device to the ...
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0answers
314 views

Pairing bluetooth mouse with two system on same computer

I have a Microsoft Mobile Memory Mouse 8000 paired to my notebook under Windows via Bluetooth. However I have a Linux installation as well (openSUSE 12.1) and I thought I could make that mouse work ...
2
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0answers
161 views

split window and rearange parts on screen

I have third party application with the native resolution of 1600x600. What I need is to display first 800x600 half of the window below the second 800x600 part of the window. This wasn't problem as ...