Questions specifically about Linux, as opposed to Unix-like systems in general, or to questions about a specific distribution or program.

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0
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0answers
11 views

Citrix Receiver fails to run on custom distro

I have a customized OS, based on lfs. GCC, glibc version of this OS matched with that of Ubuntu-13.04 I installed an application named Citrix Receiver on both OS. On Ubuntu, it runs smoothly as per ...
0
votes
0answers
9 views

Unable to Configure Quotas in RHEL6 & CentOS6- quotecheck returns error message

Unable to Configure Quotas in RHEL6 & CentOS6- quotecheck returns error message I've created new partition(/dev/sda6) and mounted it(on /hulk). Edited /etc/fstab file to give quotas on the ...
1
vote
1answer
329 views

sudo service command not found when installing mongodb

I am currently on OS/X using macbook. I want to stop the instance of mongodb service running. Hence I tried: > sudo service mongodb stop sudo: service: command not found After looking up on ...
0
votes
0answers
14 views

linux boot issue

I found an entry in file /etc/ld.so.conf.d/cognos.conf which stopping linux to boot in the VM. Its going to recovery mode after boot. I am not getting grub prompt and os in read only mode. Solution ...
1
vote
1answer
7 views

How can I see processes being run by another instance of root on my Beaglebone

I am installing a Raspbian Linux image onto an sd card inserted into my BeagleBone Black. I will use this later in my Raspberry Pi. To do this, I am using the dd command from my MacBook Pro (via ...
0
votes
0answers
25 views

GNOME 3.14 theme management without gnome-tweak-tool

I'm using Arch Linux (x86-64), with SLiM and Openbox. But naturally I have a handful of GNOME applications installed. With the recent upgrade to 3.14 they all started looking really bad. And I want ...
1
vote
3answers
36 views

How to List files which contain white space in filename? [duplicate]

I am trying to read files one by one by using the for loop like below, by passing argument to the functions. Argument 3 makes lot of problem due to space in file names. Example: ...
4
votes
1answer
187 views

File size shown by “du -k” is different in different file systems (PRAMFS and FLASH)

I have a file xyz.log which is of size 1.72MB. In FLASH file system: If I run du -k xyz.log output is 1761 xyz.log. I copied the same file to RAM storage and run the du -k xyz.log output is 221 ...
4
votes
1answer
342 views

Windows Changes File Permissions in Samba File Shares

I have mounted an external USB drive that is used for file shares on CentOS. All of the clients access the shares are Windows XP or 7. Within Windows, I use the "Manage your credentials" feature in ...
0
votes
0answers
12 views

iwlwifi: timeout delays firmware to be loaded

I'm using OpenSuSE 13.2 beta (which runs by the way very nicely). When starting up, my wireless adapter (Intel Centrino Ultimate-N 6300 AGN/Thinkpad T420) delays about one minute... But then it works ...
-1
votes
2answers
18 views

How to install ISO file? [on hold]

I've MATLAB R2014a UNIX ISO file , but i'm using windows 8.1 , how can i install this version of MATLAB into windows instead of UNIX ?
1
vote
0answers
18 views

CrunchBang vs LXLE or other lightweight distro [on hold]

I am looking for a lightweight distro for my laptop. My laptop is not old, it is quite powerful (core i7 ) but I need more battery life because with Mint/Ubuntu it drains fast. So I need advice what ...
5
votes
2answers
106 views

annoying message “X11 connection rejected because of wrong authentication” while there is no problem at all

I'm having an annoying problem. When I'm logged in to a specific host via SSH, the message X11 connection rejected because of wrong authentication. occurs three times seemingly random about once ...
8
votes
3answers
137 views
+100

How to force Linux kernel to “freeze” (or nearly freeze) for a few hundred milliseconds

We are running a real-time process on a non real-time kernel (CentOS 6), and this is probably not going to change. We have a streaming video application that requires about 500 MB/s of PCIe traffic ...
0
votes
2answers
41 views

Command Line only UNIX/Linux OS [on hold]

I want a command line only UNIX/Linux OS. I want the download of the OS to be below 80MB. I want minimum software.
1
vote
3answers
54 views

How to align a table of display nicely

I am trying to create a script that act as a ps command with it's own properties that I want to display. Say this is how processes would look like in ps command: sas 24431 1 0 Oct10 ? ...
1
vote
1answer
834 views

How to access u boot environment from linux?

How can I access and change the u-Boot env variables in linux. Using the u-boot/tools/env directory in u boot directory: u-boot$ make env Which created the executable file fw_printenv. I copied ...
7
votes
1answer
312 views

How to make linux 'perf record' work for libc and libstdc++ symbols?

I'm using perf record -g on x86-64 Linux to profile a program. Several symbols in libc or libstdc++ have 0 as a parent: __GI___strcmp_ssse3 (libc) and strcmp@plt (libstdc++) for example. (I can ...
3
votes
0answers
29 views

Thread process in linux

I'm wondering about the "punishment" that occurs when a new thread is created. From my understanding of clone(2), NPTL (New POSIX Thread Library), CFS (Completely Fair Scheduler), when a new thread ...
0
votes
0answers
17 views

unsquashfs fails

Debian 7.0, I extracted the firmware.bin image using binwalk. The extracted content is squashfs-root folder containing subdirectories and one file.squashfs file. I tried unsquashfs the file.squashfs ...
0
votes
0answers
6 views

Get start and end of process segments C/C++ [migrated]

I need to get the start and end addresses of the following process segments: code, data, stack, environment. I understand how it is located in memory, but don't know how to get it using API calls or ...
4
votes
1answer
951 views

One host, two virtual machines that cannot ping each other. How to solve

We have Virtual Machines operating within the KVM environment. We setup one as a dev server running Apache etc., and the other as a Windows development environment. The two environments are setup ...
0
votes
0answers
33 views

GDB up arrow doesn't work

I searched a lot about similar problems but found nothing. When running gdb I couldn't use up arrow for walking through previous commands. Up and down arrows are just ignored. I have started to ...
5
votes
2answers
905 views

OpenLDAP Password Policy overlay error while loading

I'm trying to load the password policy overlay but i'm having the following error ldapadd -Wx -D "cn=Manager,cn=config" -f overlay.ldif Enter LDAP Password: adding new entry ...
11
votes
4answers
715 views
+100

Drop a specific file from the Linux filesystem cache?

I know I can drop everything from the Linux filesystem cache, but is there a way to drop just one specific file? Or prevent a file from being cached? Or tell a process not to cache any files it ...
4
votes
3answers
521 views

Linux installation stops working after a few reboots

I'm trying to set up a dualboot Win8/Linux on my HP tablet (touchsmart tm2-1050ez). However, when I'm finished setting it all up, after a few more reboots, I'm not able to boot to Linux anymore, as I ...
1
vote
1answer
1k views

Bridge interfaces with Vlan on Linux based access point

I have a Linux based wireless access point. It has eth0 interface for ethernet, ath0 for wireless and br-wan as a bridge between the two. bridge name bridge id STP enabled ...
1
vote
1answer
407 views

Why do I not seem to have hidraw options on my system, and how can I fix my usb devices?

Starting today, I noticed a few problems with my system. USB devices, including the internal ones such as microphones, don't seem to be working at all. I first noticed when my keyboard and mouse ...
3
votes
1answer
530 views

BCache and disk encryption

I recently bought a new laptop with a 16Gb mSATA SSD cache drive. I haven't used that one yet. I have, however, opted for Ubuntu 13.04 with "Full Disk Encryption" for the main partition (is that ...
0
votes
1answer
904 views

SMTP connectivity issue in Zenoss (“Connection unexpectedly closed”)

I am using Zenoss for monitoring purpose. I have been using its mail service for a long time. Suddenly my mail service in zenoss stopped and started showing <class ...
2
votes
1answer
606 views

azap from LinuxTV dvb-apps strange signal behavior with Hauppauge WinTV-HVR 950Q

What I want to do I have a Hauppauge WinTV-HVR 950Q USB-TV-Stick. I want to use this stick to successively tune to and read in a certain live TV stream. What I do I trigger a scan and save the scan ...
8
votes
2answers
899 views

Avoid very fast double clicks

I have a mouse with a weird problem. The left button sometimes fires a double click even if I click just one time. I would like to know if there's a way to avoid fast double clicks, ignoring clicks ...
0
votes
0answers
10 views

boot fails with “cryptsetup: lvm fs found but no lvm configured” [dual boot(2xlinux LVM, dm-crypt+luks)]

I have a dual-boot(xubuntu/#!) setup LVM with dm-crypt+luks as follows /dev/sda1 = /boot (xubuntu) /dev/sda2 = /boot (#!) /dev/sda3 = encrypted LVM /dev/mapper/volgroup-xroot = / (xubuntu) ...
2
votes
1answer
604 views

Debian stable dual monitor problem

I installed Debian wheezy with XFCE 4.8 on my new laptop, updated the kernel to 3.13 from backports. When I connect the laptop to my monitor, I can see only a part of the screen on the monitor with a ...
2
votes
1answer
83 views

Is there a way to run a privileged command upon successful SSH login (not necessarily with shell or PTY)?

I'd like to run a privileged command upon successful SSH logins at the server's end. However, this has to be in the server configuration (sshd_config or anything else that cannot be manipulated or ...
1
vote
2answers
42 views

Increasing performance of clear text file reads

In our bioinformatics application we have large files (up to 900MB, typically 100MB). These files contain a clear text representation of a genome, and are essentially a 1 line file with a sequence of ...
1
vote
2answers
142 views

OpenSSL 1.0.1j - “POODLE” vulnerability fix (upgrade) on RHEL 6.5

I've got a problem when I upgraded my OpenSSL on RHEL 6.5. The OpenSSL is missing the library libcrypto.so.10. Instead the openssl 1.0.1j created lib is libcrypto.so.1.0.0. I've made a soft link, but ...
11
votes
8answers
4k views
0
votes
0answers
17 views

I'm trying to create a public TLD using BIND

I'm using these two guides: jackal777.wordpress.com/2013/11/19/custom-tld-for-local-network/ timg.ws/2008/07/31/how-to-run-your-own-top-level-domain/ When I run dig sokolovskaya.ssu, it looks ...
2
votes
1answer
1k views

What is the difference in CPU utilization between 'ps aux' and 'ps -ef'?

I use Ubuntu 12.04.1 Linux. I see a difference between %CPU and C output format of ps command for a process. It is not clearly noted in the ps man page. Man pages says: CODE HEADER ...
3
votes
0answers
131 views

129 MB used space shown in the SD card even after formatting it with mkfs.ext4 [duplicate]

Possible Duplicate: ext4: How to account for the filesystem space? The full 2 GB space doesn't get shown as free space even after fully formatting it with mkfs.ext4. Are these some system ...
0
votes
1answer
2k views

How to format large Size HDD quickly

In windows we can do a Quick format just by right clicking the device and boom format. In linux How to do the same I mean if the size of HDD is 2TB or more it takes along time to format using ...
0
votes
1answer
680 views

Format drive and all partitions, start from scratch on chromebook

I have a chromebook which ... someone ... may have messed up some partitions using fdisk while ubuntu was installed. Now, after doing a recovery re-install for chromeOS I'm unable to install ubuntu ...
0
votes
0answers
37 views

cronjob executes every minute but should execute every hour [on hold]

I have a script which should be executed every hour, which creates a new log file. But it executes every minute. I am really despairing. My entry in crontab -e looks like this: #Create new logfile 0 ...
1
vote
3answers
2k views

RHEL:Change Screen Resolution of Virtual Console

I am working on a RHEL 6.3 Workstation. And the monitor is a HD AOC Monitor. Problem I am facing is whenever this machine starts up, it runs with maximum screen resolution. It is a big screen and ...
1
vote
1answer
139 views

bash: /etc/bash.bashrc: Permission denied whenever I open a terminal

On Ubuntu 13.10, when I open a new terminal, I sometimes get the following output on the terminal: bash: /etc/bash.bashrc: Permission denied However, the permissions should be fine: >ls -l ...
3
votes
1answer
25 views

Softlink in rc0.d is working on poweron rather than shutdown

I want to run a script on poweroff in Ubuntu. so I made a script, placed it in init.d & made a softlink in rc0.d with name S36xyz. my script is working perfectly when I run it in terminal. so ...
1
vote
1answer
60 views

How to launch multiple instances of a program in parallel using parallel?

I would like to execute a command: curl example.com multiple times in parallel using GNU parallel. I tried: parallel -j 3 curl example.com but it doesn't work.
4
votes
5answers
2k views

How to disable shutdown so that an important process cannot be interrupted?

What is the simplest way to disable or temporarily suspend reboot/shutdown when an important process is running? The process takes too long to finish and cannot be paused/resumed so I like to avoid ...
2
votes
1answer
722 views

SSH agent forwarding, multiple hop

I tested this setup with Linux origin machine - everything is the same - only the first hop can use keys from origin machine. Initial problem I'm trying to set up SSH agent forwarding with multiple ...