Ubuntu is a Linux distribution with an emphasis on ease of use and installation. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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35 views

/var/log/rgc main.log very large file preventing server operation

The root partition on our Ubuntu server has just filled and the web portal no longer works. I tried locating the large file and discovered: /var/log$ du -h --max-depth=1 3.6M ./apache2 12K ./...
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1answer
152 views

Installed OS on EFI system crashes on grub shell

I have installed an el6 based custom OS on an e-mmc drive. This machine doesn't have legacy boot mode, only EFI. The installed OS has grub-0.97-77.el6.x86_64.rpm. Using a rescue disk I can see that ...
0
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1answer
494 views

Installing OpenFlow inside Ubuntu error: glibconfig.h: No such file or directory

I'm trying to install OpenFlow in my Ubuntu machine. I'm following the steps in link. When I try to run these commands: cd utilities/wireshark_dissectors/openflow make sudo make install make ...
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1answer
51 views

Is there anyway to create a link that acts just like a shortcut?

I have Ubuntu 14.0.4 LTS. I have the following folder on my system: /opt/JBoss_4.0.4.GA/server/default/deploy Also I have this symbolic link to that folder on my Desktop: JBoss deploy -> /opt/...
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0answers
65 views

“Process cannot access the file” error with .net app under wine

I have a legacy .NET app (dotnetapp) that works fine on Windows XP and has been for many years. I setup Ubuntu 14.04 in a VirtualBox VM to try and see if I can get the app to work under Wine on Ubuntu....
1
vote
1answer
157 views

Is there a key binding to switch to “last” workspace in mint 17.2?

Mint 17.2, Cinnamon. I use dconf editor to set up my hot keys to switch between workspaces. Here is the relevant portion of my workspace key bindings: What I want is a key binding that switches ...
1
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1answer
1k views

Ubuntu server 14.04 cannot reach dns but can ping [closed]

The server A has access to the Internet, since I get correct response when I use curl . And I have another server B which is free of this issue, of which /etc/network/interfaces and /etc/resolv.conf ...
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0answers
31 views

bug in vim editing, caused by tab or diacritics?

I have the following line in a file (notice the tab in the beginning): $q = "select pl.id, pl.pltag tag, tf.nome família, tg.nome Gênero, ts.nome espécie, l.nome localidade When I try to edit ...
4
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0answers
314 views

A stop job is running for LVM

I use full disk encryption which uses an LVM. It uses like this in lsblk: NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda ...
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0answers
15 views

What are the installed components when installing a video card driver?

what are the components/modules/software installed and where? (kernel/userspace) that are installed when installing a OS driver vs proprietary driver , for example on ubuntu unity DE to simplify ...
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1answer
156 views

Resize2fs doesn't extend my file system to the size of the partition

I have a 1 TB hdd but when I run df -h my root partition is only 888G big.Parted -l shows the following 3 32.2GB 1000GB 968GB primary raid mdstat shows this md2 : active ...
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0answers
84 views

“at” jobs stuck?

I have a system that uses the at command to schedule simple commands to be executed later. The command in question uses a lock so that multiple commands started at the same time execute sequentially ("...
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0answers
134 views

fatal error: avr/io.h: No such file or directory compilation terminated

I am use 14.04 version of Ubuntu. Whenever i run AVR program this kind of error is generating "fatal error: avr/io.h: No such file or directory. compilation terminated". So, please someone help me ...
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3answers
6k views

Why is my EC2 server's time off by ~10 seconds every day?

I have what I believe is a system file, /etc/cron.daily/ntpupdate which runs ntpdate ntp.ubuntu.com daily to sync with the network time. Every day it generates output very similar to this: /etc/cron....
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1answer
61 views

How to start my own server as a service using systemd

I have written my own server in Qt with QtWebApp Now I want start that server on Ubuntu 15.10 startup using systemd I created this service file [Unit] Description=This service maintains a ...
2
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3answers
20k views

Mouse and keyboard not working in Ubuntu 14.04

I updated my Ubuntu Linux to 14.04 and now the mouse and keyboard don't work in the login screen. I tried re-installing grub from a Live USB, but it's still not working. I would really appreciate your ...
4
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1answer
44 views

Is that possible to know the user that installed a spcify package?

I don't feel easy with Unix package tools, and I wonder whether it is possible in Ubuntu to list all installed packages, and see the users that installed them ?
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0answers
21 views

problem locating module in ubuntu, visible through Anaconda but not accesible

I have Ubuntu 12.04. I have installed Anaconda3 latest version. It has python3.5 which is default for the system now. Some of the programs require using python2.7 which I invoke as follows /usr/bin/...
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votes
4answers
2k views

Does Linux support the ThinkPad Helix 2?

I'm holding out for the ThinkPad Helix 2, which has a detachable tablet as a screen. It comes out later this month. I've heard that installing Linux on bleeding edge technology can be problematic ...
1
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0answers
355 views

Ubuntu 15.10 Desktop x86-64 Enabling manual login leads to “The system is running in low graphics-mode”

I prefer manual login in both Windows and Linux. With past Ubuntu releases, sudo sh -c 'echo "greeter-show-manual-login=true" >> /etc/lightdm/lightdm.conf'achieved this perfectly. Now, with ...
3
votes
3answers
7k views

redhat vs debian/ubuntu system architecture (& not deb vs rpm)?

What are the key areas (except package management) where Fedora/RHEL/CentOS differ from Debian/Ubuntu Linux systems? I'm asking this from a newbie's perspective to the Linux admin world so that I can ...
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1answer
551 views

R IDE and RStudio won't open in lubuntu

I've installed R (3.2.2) in latest lubuntu (apt-get) and the RStudio (0.99.489 - Ubuntu 12.04+ 32-bit). R works from command line, but the IDE fails to launch from the shortcut that installation ...
1
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1answer
213 views

Disable ubuntu unity launcher & panels when using vmware full screen

When I put a vmware workstation in fullscreen mode, I am unable to click on things on the left edge of the virtual machine because Ubuntu captures the clicks and opens up the corresponding application ...
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2answers
232 views

How to set up Python path?

I have uninstall anaconda2. but now when I run Python command in terminal it says "bash: /home/user/anaconda2/python: No such file or directory" now how can I set to Python when I have python 2.7 in "/...
1
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1answer
84 views

Some packages cannot be installed using multi-arch (take two)

Note: This question has been previously asked on askubuntu.com but was rejected as off-topic, and instead, I was redirected to this site. Therefore I'm reposting it here. I'm trying to compile a ...
0
votes
1answer
17 views

Restore boot parameters to default value Linux

I feel my system is getting slower and slower. I am using Ubuntu and my machine is HP ProBook 450 i7 4x2.0GHz, 8GB RAM and an optical HD. Still it takes ~2 minutes to boot, which in my opinion is way ...
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0answers
155 views

dpkg-deb: error: control directory has bad permissions

I'm running an Ubuntu 12.04 VM and trying to convert an rpm file to a deb file. When I run sudo alien --to-deb --scripts oracle-xe-11.2.0-1.0.x86_64.rpm I get this error dpkg-deb: error: control ...
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0answers
13 views

keyboard layout bug in Trusty 14.04

My default layout is AZERTY, but i also have the QWERTY layout (don't know why, my keyboard is AZERTY) and sometimes after booting my computer, QWERTY is selected automatically while itdisplays to be ...
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0answers
103 views

IPTables if more than 30 connection in 1 minute ban IP for 1 hour?

I am trying to setup a firewall that limits to 3 connections per IP and also ban the IP for an hour if > 30 connection attempts in one minute. Is this all possible with iptables? So far I have only ...
0
votes
1answer
286 views

Asterisk:Registration is UNREACHABLE VOIP chan_sip.c:15171 sip_reg_timeout

I'm trying to register my VOIP but I can't and appear this massege [Jul 24 12:45:58] NOTICE[24430]: chan_sip.c:15171 sip_reg_timeout: -- Registration for 'XXXXX@sip2.tellfree.net' timed out, ...
3
votes
2answers
977 views

how to upgrade a single package in debian

I'm currently running debian 8 and I want to upgrade security patches which is provided by debian but problem is that, if I upgrade a single package then it asks to upgrade many packages, as in: $ ...
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0answers
86 views

Ubuntu routing tables problem

I'm having an issue with ubuntu's server network traffic rules. Ubuntu server's version is 14.04. I have a zabbix server monitoring serveral hosts. 2 days ago, about 14 hosts started reporting down. ...
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0answers
499 views

pfsense: squid transparent proxy not working in bridge mode

I have installed the latest version of pfsense. I have setup it up in bridge mode after creating a rule any for lan and wan respectively. I have setup the squid on transparent proxy mode with ssl ...
2
votes
2answers
394 views

Xt error: Can't open display!

I am trying to run xterm on my Virtualbox ubuntu VM, but when I run xterm on the VM, I keep getting the message xterm: Xt error: Can't open display!: xterm: DISPLAY is not set When I run xterm ...
2
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1answer
45 views

Cannot write to sector - boot Ubuntu

So I was in an airport working and I closed my laptop. When I brought it back up again, my screen was black so I kill switched. Now when I boot, I get "cannot write to sector". Anyone got any ideas? ...
2
votes
1answer
92 views

Boot menu not showing Ubuntu 12.04 installed alongside Ubuntu 14.04 & Windows 8.1

I know the question looks similar but I did not find any answer to my problem, hence posting it here. Thanks in advance for any help. I had Ubuntu 14.04 installed alongside Windows 8.1 and both ...
0
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1answer
495 views

Xterm: No absolute path found for shell: 500

After sshing (using putty with X11 enabled) into my virtual box VM, I tried to open an xterm window. However the following command: xterm -sb 500 or even /usr/bin/xterm -sb 500 returns the ...
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0answers
45 views

opencv webcam problem

I started the webcam using openCV but (stupidly) did not assign code for proper closing up of resources. So now the webcam is stuck. How can I restart the webcam without rebooting ? I know rebooting ...
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0answers
28 views

' user account ' [closed]

i cannot access my user account. the only thing i see in front of me is the display screen, with no icons at all. the only way i can use my computer is through the guest account. and everything that ...
1
vote
1answer
195 views

Want to print NULL if value is not present as awk output

I am trying to print a tshark command output using awk below is my command: tshark -r "test.pcap" -odiameter.tcp.ports:"1234" -R 'diameter.cmd.code == 272 and diameter.flags.request==0 and !tcp....
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0answers
155 views

Grey screen when using tightvnc and trying to run xfce4

I have an Amazon ec2 instance. I am attempting to run a dedicated arma 3 server on it. Part of this it to set up a repository on the server. The program I want to use requires a GUI. This is the ...
0
votes
1answer
77 views

How to upgrade Open VSwitch in openStack Kilo

I'm using OVS integrated with OpenStack Neutron. OVS' version that I use is 2.3.2 and I want to upgrade it to the latest version released in Sep 2015. I tried to upgrade it by entering "apt-get ...
1
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0answers
36 views

Easy way to boot Windows and more than 1 linux distros?

So originally I had installed Windows 7. Then a couple of weeks ago I installed Debian. I now wanted to try Ubuntu so I installed it without taking to much care for the booting process, I let Ubuntu ...
3
votes
3answers
171 views

How can I read a linux hard disk from Windows?

I have a PC with Ubuntu (I think it's 14.4). Pretty recently it completely broke down (motherboard (again)). I want to get rid of it, but on the hard disk there are a lot of photos I want to keep. I ...
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0answers
57 views

ubuntu Crontab not running properly

I have to run crontab in xvfb display mode forever when the system restarts...below is crontab code.... @reboot nohup Xvfb :1 -screen 0 1024x768x24 & export DISPLAY=":1" @reboot /usr/bin/forever ...
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0answers
183 views

Ubuntu 14.04 VBox VM boot with minute delay

I am running Ubuntu 14.04 inside VirtualBox 5.0.10 r104061, installed from the mini.iso from Canonical. Somehow, booting has gotten a huge delay (edit: 'huge' for me being... a good minute staring ...
0
votes
2answers
70 views

Significance of md5sum file in debian package source

I have one debian package source with md5sum file inside DEBIAN directory |-- DEBIAN | |-- control | |-- md5sums Now my question is when this file will be used? Will it be useful for integrity ...
2
votes
1answer
132 views

Access iphone storage as device/partition

I am working on a project, in which the ultimate goal is to successfully wipe iOS from an iPhone and install TinyCore Linux in it's place. I expected the iPhone to function like an external drive when ...
2
votes
1answer
868 views

Add Ubuntu Repository to Debian

I would like to know how I can add the Ubuntu repository with Debian's, as there are some drivers and games I want that aren't on the Debian repository. For example, darkplaces is a game I want that ...
1
vote
2answers
403 views

Pulseaudio with external sound adapter: work around broken sound

I'm using an external USB sound adapter on a laptop that has an internal sound card. There are some issues: The applications by default continue to use internal sound card. I can work around this ...