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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1
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0answers
4 views

Running makefile results in “/sbin/modprobe: invalid option — 'l'”

I'm trying to set up Slackware 14.0 on an Asus EEE PC Flare Series Netbook. Currently I'm trying to configure the wifi. When I enter the following: # iwconfig I get: lo no wireless ...
1
vote
1answer
24 views

Suppress warning from ps -aux on Linux

When I run the ps command i get a warning saying Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ. How do i suppress this warning? Is there some system setting that i ...
0
votes
2answers
479 views

Distro for high end video editing

Which distro would be most suited for maximizing hardware to perform expensive video editing and optimize resources. I followed up with optimizing resources, as in some cases one operation may not be ...
0
votes
2answers
36 views

Is it safe to format this extended partition?

On a ubuntu server I own, I am running out of space. When I ran sudo parted /dev/sda -l to find all available drives, I got this: Model: ATA ST31000528AS (scsi) Disk /dev/sda: 1000GB Sector size ...
-2
votes
0answers
8 views

real scenario about tc command and mangle table of iptables [on hold]

I don't have any question, But i have a request: I want to learn mangle table of iptables and tc command But i need to a real scenario, Please define me a real scenario!
6
votes
5answers
1k views

Free/Open Source secure Skype alternative on Fedora & OpenBSD?

Criteria: Audio/video calls Encrypt the whole traffic [with a good encryption] ported to windows 7 too runs on Fedora, OpenBSD Does anybody know a good alternative?
0
votes
1answer
375 views

udev rule trouble on a Raspberry Pi (Raspbrian) using an ACR122U card reader

I am trying to get my ACR122U usable by all users on my Pi. I have the drivers installed correctly and nfc-list is working for root: root@raspberrypi:/etc/udev/rules.d# nfc-list nfc-list uses libnfc ...
1
vote
1answer
41 views

Grub menu not appearing

I have a windows 8.1 installed in my lenovo z570.I installed linux mint 17 from an USB created using YUMI software. After installation the grub menu doesn't appear and windows gets booted up ...
8
votes
2answers
5k views

What is the difference between the following kernel Makefile terms: vmlinux, vmlinuz, vmlinux.bin, zimage & bzimage?

While browsing through the Kernel Makefiles, i found these terms. So i would like to know what is the difference between vmlinux, vmlinuz, vmlinux.bin, zimage & bzimage?
11
votes
6answers
29k views

Show top five CPU consuming processes with `ps`

How to show top five CPU consuming processes with ps?
6
votes
1answer
3 views

Linux kernel 3.10.0-123.4.2 processes [flush] aren't present

I am using CentOS 7 with "3.10.0-123.4.2.el7.x86_64" version, but I don't know why the kernel threads named flush aren't present in this kernel version. I tried to look in the kernel change log, but ...
1
vote
0answers
14 views

RTC is not saving time after hwclock

So I'm having quite a bit of trouble trying to get my system to set the hardware clock's time. Here is what I did just now, everything has worked, right? The first and last command seem to indicate ...
0
votes
0answers
8 views

Why would attempts to bind affinities for rcu kthreads fail?

I am trying to get full tickless mode working on my box on Ubuntu kernel 3.10.39. I am running the following command: for i in `pgrep rcu` ; do taskset -pc 0 $i ; done It seems to work on some of ...
3
votes
4answers
14k views

mount.nfs: access denied by server while mounting on Ubuntu machines?

I am a linux newbie and I have a very basic question. I have three machines in production - machineA 10.66.136.129 machineB 10.66.138.181 machineC 10.66.138.183 and all those machines ...
4
votes
2answers
748 views

Benefiting of sched_autogroup_enabled on the desktop

I am running a 2.6.37 kernel with sched_autogroup_enabled set to 1. I am not certain that I am seeing the benefits of this patch since: I am launching my applications from the desktop; applications ...
2
votes
1answer
406 views

Memory management - how memblock_reserve works

I am new to Linux kernel and I am studying the Linux memory management framework. I have few doubts on this. I am working on Marvel PXA986 boards and in board file I can see few memory reservation ...
0
votes
1answer
9 views

Multiple file systems on BeagleBone Black?

I'm trying to put together a BeagleBone Black using Debian on the EMMC, a separate MicroSD card and a flash USB disk (but could ostensibly be platter media on USB). My question, simply put: are there ...
1
vote
2answers
1k views

Install mono and Monodevelop on a new Redhat 6.5 Workstation

Does anyone know how to install Mono and MonoDevelop on a Redhat 6.5 Workstation. I've tried a number of different things but nothing has worked. I tried using git and building with make from the mono ...
2
votes
1answer
342 views

cpufreqd does not control temperature plus shows no output

Since my laptop (an Acer Aspire 5750G running a Gentoo Linux with a not-quite-up-to-date kernel 2.6.39-r3 (a weird wLan hardware makes the update difficult)) tends to run rather hot I am trying to ...
1
vote
1answer
490 views

Capture raw image from V4L (webcam) device

I'm using a Raspberry pi to monitor a self-service fridge. When the door opens, a shell script is being executed to capture pictures until the door closes again. The problem, however, is the speed of ...
0
votes
0answers
11 views

Permission denied when trying to write to a file in /sys directory [duplicate]

I'm trying to manually set the speed of the fan on my Macbook Pro 7.1 which is running Crunchbang Linux Waldorf. I'm following the instructions in this blog article ...
0
votes
0answers
10 views

Determin if the currnet terminal has a dark or light theme [duplicate]

I have several (Bash) scripts that uses ASCII color codes. They look good on my dark themed terminal, however on my colleagues light themed terminal the colors I selected don't look that good. Is ...
1
vote
0answers
13 views

Setting up touch driver to run through service

We are trying to integrate a touch panel to our Debian system. Touch driver (General touch) I am trying to run this application in Linux service.Below are the steps which i followed Driver ...
0
votes
3answers
270 views

NFS server on qemu guest

I need to know how I can mount block devices, placed on a qemu guest system, from host. So in this case we have NFS server placed on guest system and NFS client on the host's side. There are a lot ...
2
votes
1answer
19 views

How does chroot's use of qemu for cross compile environments work?

To be able to do cross compiling there's a trick where you copy a static qemu binary into your <different-arch-root-to-be>/usr/bin and when you chroot into that filesystem, which has non-native ...
6
votes
1answer
88 views

Why are rmdir and unlink two separate system calls?

Here's something that kept me wondering for a while: [15:40:50][/tmp]$ mkdir a [15:40:52][/tmp]$ strace rmdir a execve("/usr/bin/rmdir", ["rmdir", "a"], [/* 78 vars */]) = 0 brk(0) ...
1
vote
1answer
376 views

Fedora 20: Failed to start LSB: Bring up/down networking

I'm trying to restart my networking service in Fedora 20, and I get the following error: [dev@localhost das]$ sudo service network restart [sudo] password for dev: Restarting network (via ...
0
votes
0answers
6 views

Alternatives to Symphony OS Orchestra Application Environment

I just read that Symphony OS has an wonderful concept, called Orchestra, where applications (can be even written HTML + JAVAscript) can be ran via a reduced localhost server and a leaned down mozilla ...
2
votes
2answers
89 views

Can GNU Parallel execute more parallel processes?

Can I for example execute: parallel -j 200 < list0 Where "list" has: nice -n -20 parallel -j 100 < list2 nice -n -20 parallel -j 100 < list1 Would this be feasible/possible?
2
votes
3answers
7k views

KVM - Which Web Based management to use?

I would like to became an Expert of managing KVM on debian squeeze. I still use virt-manager. Yes, it is easy and quiet safe and quick for me. I tried a lot of web based management UI and non of ...
2
votes
1answer
495 views

Increasing Accuracy of Synaptics Touchpad - Arch Linux

Here's my current problem with my Arch Linux installation. The touchpad is horribly inaccurate. And by that, I mean, I cannot click links without having to sway back and forth. I've been resorting to ...
1
vote
2answers
181 views

PPTP VPN in CentOS 7

I recently installed CentOS 7 (Gnome), but I realized that there are no options for setting up a PPTP VPN client. I tried to install networkmanager-pptp-gnome, but unfortunately it's not available in ...
4
votes
2answers
651 views

Access point (with hostapd) on the same interface as the network/gateway?

I wonder if it should be possible to have an wireless access point using hostapd (as described in Set up an access point) on the same interface that connects to a wireless network for internet. I ...
1
vote
1answer
28 views

How to migrate from Proxmox to VMWare?

I am wondering how it is possible to migrate a full hardware VM in Proxmox (qemu) to a full hardware VM in VMWare (vmdk). I have been searching all over the place, and it seems almost impossible to ...
0
votes
1answer
792 views

prores 444 output using ffmpeg

Instead of prores_ks ( as in image ), I need to get prores444. How is it possible? I tried the following and felt that I am limited to this. Is prores_ks an alternative to prores444? Can you explain ...
0
votes
1answer
24 views

Battery standby [on hold]

I am using a lenovo z570 laptop. In windows I am able to use the laptop for around 2.30 hrs in normal usage.But when I use any Linux distro the battery drains a lot faster. I am able to use only for ...
0
votes
1answer
3k views

rsh shows “poll: protocol failure in circuit setup”, why?

In the starting rsh worked properly, but after making some changes it shows some error [changes are shown in the end of this question, see that], I am sharing the same. Command $ /usr/bin/rsh ...
0
votes
1answer
40 views

How to edit /etc/sysconfig/iptables from: RESCUE MODE boot?

Let's say the /etc/sysconfig/iptables needs to be edited because, due to it I can not ssh to my server. I start my server in "Rescue Mode", but when i login, there is no such thing as ...
0
votes
0answers
19 views

linuxrescue — **RESCUE**] : Edit /mnt/grub/grub.conf and boot normally?

It turns out when my linux starts in RESCUE MODE as in.. [linuxrescue -- **RESCUE**]# it probably starts in a 32 bit environment rather than a 64 bit environment and thus.. when i do these.. ...
0
votes
1answer
31 views

UUID vs /dev/sdX in FSTAB

I have Linux system in which we force /dev/devname for running the system. proc /proc proc defaults 0 0 /dev/sda1 / ext3 ...
1
vote
1answer
39 views

How to download original ramdisk file to the computer? [closed]

Linux embedded, is it possible to download original ramdisk file to the computer, to get source code? Access via SFTP. U-boot 1.2.0 Kernel command line: root=/dev/mtdblock3 ...
1
vote
0answers
19 views

Disable processor speed changes on AC vs battery [on hold]

My Toshiba Satellite L300 laptop freezes when I plug in the AC power cord. The problem is, whenever the processor goes in power management or downclocks, the system freezes and shows colorful ...
4
votes
1answer
7k views

How can I install latest VLC player in cent os 6.4?

I have installed cent os 6.4 in my laptop, I want to know the method of installing VLC in cent os 6.4, Is it necessary to download the vlc package and compile or can I use ''yum install vlc'' to ...
0
votes
1answer
26 views

What are the differences between socket polling mechanisms of kqueue and epolling?

kqueue socket polling mechanism is used in FreeBSD and epolling in Linux. I would like to know what are the differences between the two mechanisms?
1
vote
1answer
62 views

Command-line parameters in bash script not recognised

I use Debian (Raspbian) Wheezy. If this command line works fine: smsd -c sms/out -i 60 -0 -f sms/smsd.log and this alias also works fine: bsmsd='smsd -c sms/out -i 60 -0 -f sms/smsd.log' then ...
1
vote
1answer
41 views

harddisk not recognized / filesystem too large to mount safely on this system / hdparm shows garbage

I have a 4 TB Verbatim external hard disk with ext4. It can be successfully mounted at my Raspberry Pi. I am trying to plug it at my WD Mybook Live Duo device where I have SSH root access. When I ...
2
votes
1answer
566 views

Airdrop compatible

Is there anything in Linux that implements whatever it is that makes Airdrop in OS X work? I'm not really familiar with that program, so I'm not sure what protocol it's using to communicate. update ...
4
votes
2answers
965 views

How to increase the size of rootfs?

So I got this error today and decided to investigate: /etc/init.d/mysql: ERROR: The partition with /var/lib/mysql is too full! ... failed! I'm not sure how... but I've filled up my rootfs ...
0
votes
0answers
37 views

Mount var to another directory, Mysql Database not found

I had an issue with rootfs and /dev/root/ because it was full at 100%. I did this command: du -h So I read this post: How to increase the size of rootfs? And I decided to mount /var to ...
0
votes
1answer
1k views

Permission denied NetApp export share

We have NetApp NFS file server. I have shared /example filesystem on NFS and give two Linux host permission of ROOT level access. Interesting thing is ServerA can mount /example share and has full ...