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

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Error: EDID Checksum is invalid when logging in to Fedora

Let me start off by saying that I'm a complete Linux noob. I've played around the GUI and the command line, but I've done nothing of the sort that I can do on Windows. I'm handling a client that ...
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880 views

How do I use my Ubuntu laptop as a wireless access point?

Main Problem I want to siphon the Internet access from my Ubuntu 12.04 LTS laptop to my old Windows ME desktop for learning purposes. I have 2 Ethernet cables and a switch with no access to configure ...
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275 views

Upstart and process substitution

So I want to use the following in my script stanza: forever -l >(tee $QW_LOG_DIR/webserver.log | logger -p user.info -t '[QW]') start webserver.js However, that doesn't work for at least two ...
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4k views

while installing a patch I am getting this error: 1 out of 1 hunk FAILED --

We are configuring lighttpd in centOS 6.4. To enable kerberos authentication, we are trying to install this patch. Saving rejects to file /usr/local/sbin/lighttpd.rej patching file /usr/local/...
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2answers
73 views

How to mirror Dedicated Server

I bought a dedicated server with cent os from 1&1. I want to upgrade the cent os version on dedicated server. Before that, i want to take a mirror of the server for backup. It hosts many websites....
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1k views

How to add 232.83GB of unallocated space to a mounted partition using GParted?

I have the following partition layout: I am wanting to move this 232.86GB of unallocated space to an already-mounted partition (/dev/sda1) using GParted. Is this possible?
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354 views

Routing web access on port 8080 trough another gateway

I have this network configuration (see picture and details bellow): R1 and R2 are two routers linux with CentOS, each with 2 NICs (LAN and ISP). Now all web trafic goes trough R1 and a vpn trough R2 ...
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2answers
2k views

CLI cURL works flawlessly, Apache with mod_php cannot resolve host, how to fix?

Setup: cURL 7.32.0 Apache 2.2.25 PHP 5.5.4 Whenever I attempt to: $ch = curl_init('www.google.com'); curl_exec($ch); var_dump(curl_error($ch)); within PHP, I get: Could not resolve host: ...
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500 views

Mac OS X doesn't show Linux Boot Partition

I have successfully triple-booted by mid-2012 MacBook Pro using rEFInd (a fork of rEFIt). I have Mac OS X 10.8.5, Windows 8, and Ubuntu (formatted as ext3) installed, as well as NTFS-3G for read/write ...
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261 views

Bash conditional redirection when testing/debugging

What is the best way to conditionally do a redirection in Bash for testing and debugging purposes? In my scripts I add a debug option to show what would have happened effectively doing a test run ...
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6k views

Create a Linux (Knoppix) bootable USB (with multiple partitions) with Linux or Mac OS X

I want to create a Knoppix bootable USB flash drive. I've found instructions about how to do this, but I would like to do it fulfilling the following conditions: The USB I am planning to use has 8 ...
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131 views

Cannot boot Ubuntu from USB 2.0 on OS X

I'm running OSX 10.7.5 on a Mac Mini 2012. I'm trying to boot Ubuntu, but keep running into issue, after issue. This is what I have done: Got an extra external hard drive an formatted to MSDOS with ...
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1answer
327 views

Set up a virtual capture device using ALSA

I am looking to set up a radio stream on my local network using a Linux box with ALSA. My first idea was to just have it capture the sound output, but this can be annoying for several reasons. (For ...
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2k views

CentOS 6.4 and alternate SSH port not working

I've got a CentOS 6.4 machine and would like to change the default SSH port, and followed these instructions: CentOS Wiki After making those changes (including the "semanage port -a -t ssh_port_t -p ...
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1answer
289 views

Remotely monitor top output on Linux from Windows [closed]

I work on Windows 7 most of the time. I have a linux machine whose process I need to monitor from my Windows machine. Instead of ssh'ing into the linux machine and doing top, I want to install some ...
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1answer
924 views

Bash script fails from Windows 7 task scheduler

In order to use rsync I created a Bash script. It runs fine from the Cygwin 32-bit shell in Win 7 but fails when run from the Win 7 Task Scheduler. My Task Scheduler script is a simple: c:\cygwin\bin\...
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407 views

Syslinux “Missing OS” after expanding to the left the partition with /boot

I have a GPT partitioned drive. Its a bit of a mess so I was starting to sort everything out. /dev/sda2 is an ArchLinux install and the location of /boot with syslinux being used. /dev/sda1 is a ...
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1k views

Having an issue with NX 3.5.0 and SSH during user authentication phase (time out)

SuSE SLES 11 SP3 Intel P4 I've installed NX 3.5.0 from NoMachines on my home server which has been working quite well until recently when I change the Domain Name for my server through my registrar ...
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1answer
1k views

Running pacman in arch bang

I have installed arch bang in my vmware workstation. The internet works fine but the pacman is not working Output of pacman -Syy : :: Synchronizing package databases... error: failed to update core (...
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1answer
1k views

Linux Mint (Mate): use xkbcomp to load a keyboard layout on startup

I'd like to load a custom keyboard layout on login, but either it doesn't load or it gets overridden by the default keyboard layout from 'keyboard preferences'. Unfortunately I can't select my layout ...
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2answers
10k views

how to rollback/undo yum update on fedora after messing the fedora versions

I want to install texlive on my fedora 16 laptop with the following procedure: # yum remove tex-* texlive-* # cat > /etc/yum.repos.d/texlive.repo <<EOF [texlive] name=texlive baseurl=http://...
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951 views

Properly setting default external PDF reader in emacs org-mode

My default PDF viewer is Evince and I'm running Linux Mint 15 with Cinnamon. If, for instance, I double-click a PDF file on my Desktop, it opens in Evince as expected. In my org-file-apps variable I ...
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1answer
523 views

Unable to ssh to my desktop

I'm trying to ssh from my mac laptop to my linux desktop. I ran ifconfig on my linux desktop (the target machine) and got the ip address listed under eth0 (the machine is connected via wire - not ...
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1answer
2k views

How do I create a one time use startup script on Linux - Centos 6.x

I want to set a script that will only run one time on a Centos 6.x box and then never run again, since it's going to set some system options based on hardware and then it's all set.
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525 views

How to login to EC2 Linux instance if sudo password is not known?

I am trying to login to my EC2 Linux instance, but someone has changed the sudo password. So I could not install or uninstall any application.
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2answers
2k views

Can't Install CentOS 6.4 from USB

Cannot install Cent OS on a box I build up. Here are the log entries visible on the screen: sd 0:0:0:0 [sda] Write ache: enabled, read cache: enabled, doesn't support DPO or FUA sda: sda1 sd 0:0:0:0:...
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4answers
3k views

How to revert to default google search from google.com/cse?

I have a problem with Google search in both Chrome and Firefox, when I type a search query, it will search at http://www.google.com/cse? rather than at https://www.google.com/#q= or at https://www....
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1answer
3k views

Performance loss when using WINE? Can windows > Ubuntu really account for it? [closed]

I have been considering a switch to ubuntu and also running a LAMP(Small PHP deployments, mainly for learning purposes) stack over it. Though it is my own personal PC, and i'd also want to run my ...
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1answer
1k views

How can a partition be full if du does not show it is?

On one of my systems, the root partition is full: snip:˜ # df -h Filesystem Size Used Avail Use% Mounted on rootfs 11G 9.3G 0 100% / devtmpfs 744M 36K 744M 1% /dev ...
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1answer
1k views

How to overcome grub rescue? [duplicate]

I had windows 7 installed, I had installed linux mint. I freed up one of my partitions from windows drive management to remove linux and now when I load, the screen I get is error: filesystem not ...
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576 views

BIOS doesn't detect USB and CD/DVD drive

I have a Lenovo B460e laptop. The BIOS does not detect and boot a Linux LiveCD in the optical drive. A Linux LiveUSB does not work either. They are detected from within Windows so there is not ...
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2k views

wants to remove cdh4(hadoop) from ubuntu 12.04

i have installed cdh3 pseudo mode in my ubuntu 12.04(precise) system using the following web reference cdh3-install-ubuntu12.04 now i tried to install cdh4 to replace cdh3 but,unfortunately found ...
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1answer
2k views

How to partition a USB drive into 2 sections for Centos ISO files

I actually once did this but forgot how it's done and also did not take notes. i think i need to create 2 partitions. one needs to be 500 mb and the rest needs to me whatever is left in the USB ...
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1answer
4k views

Cannot open port 8080

I'm running a VmWare with an application under JBoss starting up on port 8080. I'm able to access the app from outside the VM if the iptables are off. However, I must turn on iptables due to some ...
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1answer
614 views

copying to usb drive stucks in xubuntu

I am using a 12.04 64 bit version of xubuntu and whenever i try to copy files from my computer to any usb drive, it starts with a good speed and comes almost to an end very fast but as soon as it ...
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1answer
1k views

Black screen when running game in virtualbox on linux

After installing the virthualbox 4.2 in linux mint and installing Windows XP in virtualbox (Testing in windows 7 shows the same problem) When I try to run a game (like Red Alert 2), it shows me a ...
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1answer
276 views

FTP I/O Error Ubuntu VM

I have an Ubuntu 12.1 VM running on Windows Azure. I've been trying to connect via FTP to upload files to the VM but I'm having problems. I installed and set up vsftpd, like is outlined here (and ...
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1answer
386 views

Search for two strings within zip archives

Hope someone can help. I have a series of zip files. These zip files contain email files (.eml) I need to find all files between two people. I can find on of them easily using an answer I found in ...
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1answer
700 views

Internet access to host behind firewall using ssh tunnel

My goal is to give host behind firewall access to the internet. Below you can find brief description of network [internet] <-> [proxy] <-> [A] <-> (firewall) <-> [B] [A] - ...
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2answers
470 views

Copying contents from an NTFS disk to exFAT formatted disk

Will there be any problem if I copy contents from an NTFS file-system hard disk to an exFAT file-system hard disk? I will taking files from Windows 7 on an NTFS file-system EHD and copying them on a ...
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1answer
3k views

Alsamixer won't work with bluetooth device

I'm running Debian unstable. My .asoundrc looks like this: pcm.btheadset { type plug slave { pcm { type bluetooth device 5A:5A:5A:A6:08:09 profile "...
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1answer
3k views

NFS Server/Client administration of multiple machines through a GUI

I want to share folders between PCs on a local network, which may have different Linuxes installed (or booted from a USB key). Thus, I do not want to count on the sharing capabilities of a given file ...
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1answer
50 views

Cross platform softlinks?

I am using a scientific software that require softlinks to work with reasonable efficiency. However, I'd also like to sync my data, that must contain bare data from that software (i.e. not packaged ...
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1answer
5k views

packages excluded due to repository priority protections

I am not able to update my PHP in centos 6. I have centos base, epel and rpmforge repos. yum update php Error: Package: php-tidy-5.3.3-14.el6_3.x86_64 (@updates) Requires: php-common = 5.3.3-14....
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313 views

How can I reallocate an ext4 file system in an extended partition without lose data?

I resize the disk using the Windows default program. I don't know why, the extended partition of Linux now result unallocated. I'm sure I don't "touch" the extended partition, and I don't know why ...
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220 views

No guest shutdown in Linux/Ubuntu?

I had to shut down a bunch of Linux boxes tonight because we have an upcoming power outage for the whole building. I did not know any passwords for most of the boxes. So, (on the Ubuntu desktop) I ...
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1answer
377 views

Don't have permission to set environmental variables via a script?

I've written a script to add some environmental variable required to run a certain process. I use it in this way >. ./env_change_script.zsh using the leading dot to indicate I want the script ...
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1answer
946 views

Need Tool to Extract ER Diagram fom PostgreSQL 9,1

Guys I need to compare 2 different databases running in PostgreSQL. I would like to use some tool to extract the diagram in a automatic way, Ive tried pgadmin3 and pgdesigner but they seem ...
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1answer
524 views

Turn off single process swap and overcommit

Two questions: Is there some way to turn off swapping for a given process, i.e., is it possible to kill a certain process if it uses all the system's primary memory available? How do I deactivate ...
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2answers
487 views

Unable to install debian on Lacie ss4000e Kernel Panic

I am trying to load Debian Linux on my Lacie ss4000e I have been trying to follow this tutorial http://d-i.alioth.debian.org/manual/en.armel/ch05s01.html#boot-firmware-ss4000e I have tried to load it ...