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

learn more… | top users | synonyms

0
votes
0answers
7 views

fork: retry: Resource temporarily unavailable

While I am connecting to my server I get, -bash: fork: retry: Resource temporarily unavailable -bash: fork: retry: Resource temporarily unavailable -bash: fork: retry: Resource temporarily ...
0
votes
0answers
5 views

How to create boot SD card for Banana Pi manually

it seems that I have a lack of understanding how booting SD-Card images on devices like the Banana Pi work. The situation is as follows. I have a Banana Pi and a Banana Pro. Every device has an ...
1
vote
0answers
7 views

Multiple screens on one physical monitor

I've recently bought one large monitor to replace my two smaller ones. I use i3 and as it turns out I miss the screen switching mechanism in a big way. Is it possible to configure X11 to split my one ...
0
votes
0answers
8 views

Configuring X server

How can I configure XDM server to accept remote X login and works as X server, which Configuration should be done on the clients if they want to connect to this X server?
0
votes
0answers
5 views

virtualbox shared clipboard not working

I run linux mint on my laptop, and I installed the newest virtualbox software from oracle. I run windows 7 inside a virtualbox. Now I would like to copy and paste or drag and drop files from linux ...
0
votes
1answer
18 views

Routing table and multiply hops

I have 6 networks, I need to connect network 1 and network 5 via five routers. What’s the command to set multiply hops? ip route add IP_address/mask via IP_adrress dev eth0, but how do I set next hop? ...
-6
votes
0answers
17 views

Installation of watsapp on ubuntu 12.04

Please post the latest set of instructions to install whatsapp on ubuntu 12.04.
0
votes
1answer
12 views

what is tagging a socket in linux netfilter

What is tagging in linux kernel netfilter module? This is the reference code : ...
1
vote
1answer
29 views

Why `ip addr` showing inet 192.168.122.1/24?

My local ip address is : 10.102.42.102, but i don't understand the rest of the address. Can someone explain why ? root@HitHiFitHai:~# ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc ...
1
vote
1answer
14 views

How can I change the IP and gateway addresses permanently?

I recently installed Linux Ubuntu 14.04 to my computer. To enable internet connection I needed to change my IP and Gateway address. I did the following as a root user # ifconfig eth0 "my ip address ...
2
votes
0answers
25 views

Linux - mount command returns zero/0 but not working

Sounds strange, I have a shell script that it gets trigger by udev rules, to mount attached USB device to the system file tree. The script runs when an usb device attaches to system, so the rules ...
-1
votes
0answers
14 views

exchange from Manjaro to Ubuntu [on hold]

i have a big problem now i had deleted previous windows and Ubuntu and formatted my hard of the laptop now i already installed Manjaro but want to change it to ubuntu i tried to make boot usb by the ...
-1
votes
0answers
5 views

initramfs too slow and ISR taking too much time?

On my SMP (2 core with 10siblings each) platform i have a PCIe deivce which is a video card which does DMA transfers to the application buffers. This works fine with suse13.1 installed on a SSD drive. ...
1
vote
0answers
10 views

Configure the network interface to send frames with 802.3 frames on freebsd

Is it possible to configure my Freebsd (or Linux) so that all frames are sent in the 802.3 frame format (with the LLC part of 802.2) rather than Ethernet 2 frame format ? Thank you
0
votes
3answers
11 views

Clone Linux user (copy user, based on another one)

How can I create a new system user, an exact copy of another one (having the same groups, permissions, privileges and settings), but with different username, password and home directory?
1
vote
0answers
12 views

Using a rados block device as block device in libvirt qemu

What is the difference between using a rados block device in libvirt qemu with disk type='network' and disk type='block'? The ceph guide tells me to do the following: <disk type='network' ...
0
votes
0answers
10 views

“yum-config-manager --disable <repoid>” How to get repoid for centos 7?

I mistaken installed centos7 minimal. But I want to install GUI for centos7. from this link: ...
1
vote
0answers
15 views

What is the correct way to start a container with a given command?

I want to create a set of containers for simulating network traffic. Inside each of the containers, I would like to set a different network delay. Right now I am doing it manually using this command, ...
0
votes
1answer
28 views

passing bootloader arguments to the kernel

We know that the bootloader parameters are passed to the kernel before the init process starts executing. What file in the /proc directory actually does this job?
0
votes
0answers
16 views

memtest86+ doesn't show up in grub

According to my package manager memtest is installed and both memtest68+.elf and memtest86+.bin are in my boot partition yet grub doesn't give me the option to boot to them. Is there anyway to add the ...
0
votes
0answers
15 views

Where am I supposed to put PyCharm files?

I've just downloaded PyCharm (pro) for Linux (I'm running Ubuntu). It's basically a zipped directory containing everything it needs to run (tree below), including an entry point (bin/pycharm.sh). ...
0
votes
0answers
12 views

Centos 7.1.1503 no longer has some static libs that python packages assume are present

I ran repoquery -ql readline-devel and it revealed that only various .so libs are a part of this repository. /usr/include/readline /usr/include/readline/chardefs.h /usr/include/readline/history.h ...
0
votes
0answers
17 views

2 X 2TB HD in RAID1 config, “Data volume failed to mount” error

I am using a Western Digital My Book Live Duo and for some reason it decided to go bad on me. The WD support people usual answer is that the device is bad and they even upgraded my warranty to get a ...
0
votes
1answer
26 views

Linux driver privileges

I've loaded a custom driver to linux via mknod. However, now any programs I write to use it need to be run using sudo, which is difficult to do when I'm using an IDE. Is there any way to adjust the ...
0
votes
0answers
7 views

How to remove previous version of centos7 and install fresh centos7 in Toshiba Satellite using bootable USB

My centos 7 has been corrupted. I want to install fresh centos7. When I run rpm -q kernel. It gives the following results kernel-3.10.0-123.el7.x86_64 kernel-3.10.0-123.20.1.el7.x86_64 ...
1
vote
1answer
40 views

Is it possible to speed up my Linux Clock?

Is it possible to modify the Unix Time Clock so that the clock is running ten times faster? Something like a fast-forward by increasing a clock frequency or change the clock tick time? Background is ...
-1
votes
0answers
16 views

Do not work shortcuts in Fedora 21

In Fedora 21 some shortcuts don't work. There is a problem with combinations which have more than two keys (ctrl+shift+tab, ctrl+shift+← etc). Another problem with the Win+R or F12 hotkeys to call ...
0
votes
1answer
31 views

Windows to Linux (rsync and ssh) [on hold]

I'm trying to backup the folders in Windows Pictures to a remote Linux directory. This is what I have: rsync -av ssh /cygdrive/c/users/Owner/Pictures/ blah@192.168.1.10:/var/files/ImageSync/ I got ...
0
votes
0answers
20 views

Link Speed for wireless connections [migrated]

I am working to implement a benchmarker for wireless connections. How can I determine the link speed in mbps? I am working with C language and Linux system.
-1
votes
0answers
13 views

Can I install and work with pycuda if I have ubuntu linux 32bit and boot from usb? [on hold]

System is 32bit. Have Nvidia Geforce 610M graphics card on my laptop. Am booting ubuntu 14.04 lts from usb
0
votes
1answer
38 views

sort file based one colum and group by another column

I have a file of three columns: 1 A 0.5 2 B 0.7 3 A 10 4 C 4 5 B 4 I want to sort the file by increasing order of column 3 and group by column 2 1 A 0.5 3 A 10 ...
2
votes
3answers
52 views

Bash | port killing loop fails

I am trying to create a bash function which should kill all processes using some ports specified in port_array. The kill-port function works if I call it myself with a port e.g. with kill-port "80";. ...
0
votes
1answer
21 views

page up and page down alternative for horizontal scrolling in less

In vertical scrolling using less the page up and page down keys are working. Which keys scrolls one page down/up vertically? The less was started with -S option.
0
votes
1answer
28 views

How to format old laptop and install CentOS

I have an old laptop with Windows 7. I want to remove everything and install CentOS 7 to turn it into a server. What I know is that I should format the old OS somehow and get iso image of CentOS and ...
0
votes
0answers
8 views

OpenSuse does not show .eps files

I am running on this machine on a cluster: > lsb_release -r -i -c -d Distributor ID: openSUSE project Description: openSUSE 13.2 (Harlequin) (x86_64) Release: 13.2 Codename: Harlequin ...
0
votes
1answer
24 views

Assign IP to a device using BOOTP protocol?

I have a device that is BOOTP enabled, I want to assign an IP to this device on Linux. there are these tools that works perfectly ...
1
vote
1answer
18 views

How does PulseAudio start?

PulseAudio is always running on my system, and it always instantly restarts if it crashes or I kill it. However, I never actually start PulseAudio. I have checked /etc/init.d/ and ...
1
vote
0answers
12 views

rpm --verify does not inform about missing file

I noticed there is a missing file in the MySQL installation in a RHEL server. I want to know if there are more missing files so I tried to use rpm --verify (or rpm -V), however it doesn't output ...
2
votes
1answer
20 views

How to connect between two Linux machines VIA Linux router machine

I have three Linux machines that connected as the following: Linux_machine1 --> Route_linux_machine --> Linux_machine2 How to ssh from Linux_machine1 to Linux_machine2 Only VIA ...
-1
votes
1answer
21 views

how to convert video into webm format using ffmpeg in centos

how to convert video into webm format using ffmpeg and libvpx in centos I have install ffmpeg and libvpx in centos.but it's doesn't convert mp4 format into webm format. but in windows i have check, ...
0
votes
1answer
45 views

Cron Job every 55 minutes [duplicate]

I want cron to be run in every 55 mins. I followed the link CronJob every 25 minutes and my crontab command is */5 * * * * [ $(( $(date +%s) / 60 % 55 )) -eq 0 ] && wget ...
1
vote
3answers
73 views

How to decode base64 text in xml file in Linux?

I'm new in linux (shell). I need to decode base64 text in xml file using linux shell script. Could you please help me to write linux shell script for decoding the values of those tags where attribute ...
0
votes
1answer
20 views

How do I run the query 1 by 1 and return only exit code in bash script? [on hold]

I've created a below script :- query1=$(command1) query2=$(command2) query3=$(command3) if [ $? -eq 0] then echo "Success" exit 0 else echo "Failed" exit fi the problem is when I ...
-3
votes
0answers
9 views

reconfiguration of NBD [on hold]

please tell me the command of reconfiguration of nbd-server in Ubuntu. I want to reconfigure the nbd-server because when I restart the nbd-server it show me error and I have to reconfigure it
-1
votes
0answers
17 views

network block device: a port was specified but old style export were not requested

I configured the nbd-server in Ubuntu. I configured the following [generic] [myexport] exportname=/dev/sda1 port=9000 Now I restart the nbd-server service #service nbd-server force-reload but ...
2
votes
1answer
16 views

/dev/mapper in fdisk

After installing CentOS, I see several lines like /dev/mapper/centos_jackpc--11-swap and /dev/mapper/centos_jackpc--11-root when I issue fdisk -l. What is the purpose of these? And why do they not ...
2
votes
0answers
47 views

How to keep my C program from terminating when CTRL-C is pressed? [migrated]

AFAIK this has something to do with "catch the SIGINT" but I'm looking for more details. Like many others I learn C by writing my own CLI that can start other program located by the environment ...
0
votes
0answers
5 views

videoconferencing/audio-only-conferencing on LAN

The given scenario is an office-building with several floors. Using linux servers and linux clients it is necessary to create a system for videoconferencing or if not possible then audio-only ...
0
votes
1answer
13 views

Dual booting with two drives

So I need to install a microsoft product on one of my drives today sadly. My current setup is so that I have a SSD which has Linux on it. And a 1 TB HDD which just extends my Videos and Documents ...
1
vote
0answers
17 views

Caldera Debian Keyboard Output Chinese Characters

So, I'm an involuntary IT guy at my current position, and we have come across an issue with Caldera's flavor of Debian Linux. For some reason, with no real prompting, our keyboard starting typing ...