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5
votes
1answer
6k views

Why am I getting apparmor error messages in the syslog about NTP and LDAP?

On my newly installed Ubuntu 12.04 machine, with ntp and slapd installed, the following messages appear in /var/log/syslog at regular intervals: Feb 23 18:54:07 my-host kernel: [ 24.610703] type=...
1
vote
1answer
665 views

Grub2 lost in new Linux distro install

So, I really need some help. Recently I was using a dual boot machine on the same hard drive. I had Windows 8.1 and Ubuntu GNOME 14.04. When I installed Ubuntu on top of my Windows install, I didn't ...
2
votes
5answers
3k views

Unable to download youtube video

I don't know what happened now but I'm unable to download any youtube video. Earlier it was working properly. I'm working on Ubuntu 13.04 ravbholua@ravbholua-Aspire-5315:~$ youtube-dl http://www....
0
votes
2answers
147 views

Is there a way to free memory? [duplicate]

I remember, back from my days with Windows Vista/7, that there was a tool called memclear or memclean that would free some memory by invoking the NT garbage collection API. Probably it cleared cache ...
1
vote
0answers
73 views

Having trouble updating my firmware “Error processing Archive”

On Ubuntu OS sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done The following packages will be ...
1
vote
2answers
46 views

send message to log file after package installed

How can i send a message to a log file (not the apt log) after the installation of a package. I simple want to log which package (package name) was installed. ie. "links installed successfully"
1
vote
0answers
55 views

Proxy Filtering with Squid

I am currently faced with a situation where i would like to deploy a proxy server on amazon EC2 running on Ubuntu. What i am trying to achieve is to have Wifi users in each site have their traffic ...
12
votes
6answers
8k views

Screen turns on automatically (xset dpms force off)

I am using xset dpms force off to manually turn my screen off to save power. However, it turns back on after some time (20 - 40 seconds). Distro: Ubuntu-Lucid Graphics: Intel 4500 MHD ...
0
votes
1answer
222 views

Mouse Pointer Blinks and Sometimes Disappears

I am using Ubuntu 14.04LTS with dual Monitor. I am unable to figure out the problem occurring with the mouse pointer. The mouse pointer blinks and at times it disappears. Any help is appreciated ...
1
vote
1answer
30 views

Basic Hosting Postgresql in Virtualbox + Ubuntu 14.04

I have configured Postgres to accept network connections from anywhere: In pg_hga.conf: host all all 0.0.0.0/0 md5 In postgresql.conf: listen_addresses = '*...
2
votes
0answers
30 views

Software for adjusting the velocity curve of a MIDI controller

I use my yamaha clp330 digital piano as a midi controller. The problem is that the volume of the sound is too low when I play on the piano. But using software controllers the sound is normal. So it ...
0
votes
0answers
95 views

Fglrx-updates refuses to replace Gallium on Mint 17.2

I installed fglrx-updates on a fresh install of Mint 17.2 via this guide for Ubuntu 14.04. When I type in $ fglrxinfo display: :0 screen: 0 OpenGL vendor string: X.Org OpenGL renderer string: ...
0
votes
1answer
262 views

Can't access flash drive on kali

I have flash drive but it can not be detect on kali and ubuntu. Windows can detect it but can't format it. Even in gparted it isn't listed. I refresh devices on gparted and get a warning: Libparted ...
1
vote
1answer
47 views

copying and working on OSX .app files (folders) in linux

tldr; I want to run a script over an external hard drive and tar.gz every folder that ends with .app into their own archive. That is, I don't want them all in one tar.gz file, I want to create one ...
1
vote
2answers
370 views

Wi-Fi working on and off, mostly off on a HP laptop - take two

I have a HP laptop with Intel Centrino 2230 N card. The system is Xubuntu 13. Wi-Fi works on and off. When it's down, it still connects to the network and obtains an IP address, but ping to the ...
18
votes
6answers
39k views

keyserver timed out when trying to add a GPG public key

I am trying to add a public key for installing a program with CPG. But i am pretty new to this but every command i found gave me the same error: gpg --keyserver keyserver.ubuntu.com --recv-keys ...
1
vote
2answers
7k views

How to install AMD Catalyst 15.9 on Ubuntu 15.10?

today I tried to install the fglrx-updates package from the repositories of Ubuntu 15.10, but after rebooting my computer, did not start the display manager. It is assumed that the driver has patches ...
8
votes
2answers
3k views

Difference between /run and /var/run

Is there any difference between /run directory and var/run directory. It seems the latter is a link to the former. If the contents are one and the same what is the need for two directories?
0
votes
2answers
1k views

keep script running while screen is locked for a long time

I have a script that is running on my computer. The script is written in PHP under my XAMP server. It actually is reading some files from a remote FTP server and after processing them writes them back ...
1
vote
1answer
32 views

Difference lubuntu openbox-session: Asked because of aplication error

I am trying to run a packaged Electron application at startup to create a "kiosk" system.When i use it in a fresh install of Lubuntu all seems to work fine. When i install openbox and slim on Ubuntu ...
1
vote
0answers
51 views

Ubuntu remaster creates too small ISOs

I am trying to use respin which is a fork of remastersys to create a livecd of an Ubuntu installation on my virtualbox VM. respin creates a folder called ISOLinux, dummyfs and custom.iso The problem ...
1
vote
1answer
166 views

Does linux mint use the ubuntu repos or their own repos? [duplicate]

I prefer the cinnamon desktop included with Linux Mint but there are some applications that I require that are in the ubuntu repos. Does linux mint use the ubuntu repos or their own repos? I know ...
13
votes
4answers
11k views

How to get rid of the “scanning for btrfs file systems” at start-up?

After upgrading from Ubuntu 12.04 to Ubuntu 12.10, I get a message "scanning for btrfs file systems" at starting-up. I don't have any BTRFS filesystem. It delays the booting for about 15 seconds. How ...
1
vote
1answer
86 views

How to restore ubuntu Linux to the default factory state/settings

Hello I was wondering if Linux (Ubuntu) has a way of restoring the system if something goes wrong like a Microcomputer software Windows Personal Computer.
5
votes
1answer
183 views

What is the purpose of listing the rootfs in /etc/fstab?

In BuildRoot 2015.08.1 /etc/fstab contains the following line. /dev/root / ext2 rw,noauto 0 1 On my encrypted Ubuntu laptop /etc/fstab contains the following line. /dev/mapper/ubuntu--vg-root / ...
1
vote
2answers
129 views

Ethernet with DHCP not working

I'm trying to get internet on my beaglebone black with ubuntu, but it won't work. My /etc/network/interfaces file has: auto eth0 iface eth0 inet dhcp in it. Should I use static IP or something? ...
1
vote
1answer
192 views

pulseaudio-equalizer keeps resetting at startup

Every time I start my laptop, pulseaudio-equalizer it's enabled. Even when I disable it (inside the app there's a button to disable it). How can I avoid that? Moreover, something is resetting my ...
29
votes
2answers
12k views

Run script on screen lock/unlock

I'd like to run a screen if the Gnome session is locked and unlocked. Is there a way that I can intercept this and perform certain actions when the desktop is locked or unlocked?
0
votes
0answers
15 views

Error: “failed to connect to lvmetad” in Ubuntu 15.10 [duplicate]

My computer has a error that is preventing it from booting to the desktop. The error message is Warning failed to connect to lvmetad no such file or directory falling back to internal scanning ...
1
vote
0answers
86 views

unable to open primary document entity

I'm new at Ubuntu please anyone can help me to figure out this problem? Whenever i run this command 7z x -so SwissProt.xml.7z | xqilla -i /dev/stdin q.xq It displays error "unable to open primary ...
1
vote
0answers
25 views

Ubuntu Server x64 - VirtualBox - GRUB

I using Ubuntu Server 15.10/amd64 and when installation on VirtualBox begins to end I saw message "failed to install GRUB record". And when I tried run the system without GRUB it's showed up black ...
2
votes
2answers
218 views

umount stalled and unable to kill its process

Sometimes when I remove SD card I can notice that when I reinsert it - it doesn't mount by itself. Also I've notice that umount process is stalled and I cannot kill it (not even with -9). I use Ubuntu ...
1
vote
1answer
60 views

Set the “-x” slewing option for NTP startup

On RedHat it can be set in /etc/sysconfig/ntpd but despite much searching on web and also reading man page for ntpd, I cannot find how you do this on Ubuntu (set -x option on ntpd). I can manually ...
3
votes
1answer
72 views

Why does kill not work from script, but does work from terminal?

I have the following contrived script to illustrate my issue: #!/bin/bash set -eux sudo sleep 120 & spid=$! sleep 1 sudo kill $spid wait $! This will print $ ./test.sh + spid=21931 + sleep 1 +...
2
votes
1answer
606 views

When and why is /etc/init/failsafe.conf invoked on Ubuntu Server 12.04?

Could someone please tell me when during the boot process and why /etc/init/failsafe.conf is invoked? If possible, please point me towards a resource (keyword or link) where I could read more about ...
0
votes
1answer
211 views

How to pass output to the xargs command by using piping and update user's plan after running the finger command [closed]

I'm a new user on Ubuntu and working on a task, but I haven't found any way to resolve this problem. Here is the statement: finger takes the user account name as the argument. You can feed the ...
0
votes
2answers
750 views

How to monitor the screen lock/unlock in the Ubuntu 14.04

I need to implement a function that monitors the screen lock/unlock. I referred to the following article: Run script on screen lock/unlock My python script code works fine in Ubuntu 12.04, but it ...
2
votes
2answers
52 views

How I can ignore transient failures in scripts run by cron?

I have various backup-style scripts which run from cron on a headless server (Ubuntu 14.04), typically on a daily schedule. Cron is configured with a mail server so I get feedback from jobs. Normally ...
22
votes
4answers
27k views

How to record Skype video calls on Linux?

I'd like to conduct recorded video interviews with Skype and am looking for a reliable tool to accomplish that. Is there anything out there that's not slow or buggy? I'm running (K)Ubuntu.
3
votes
1answer
94 views

Oracle's VirtualBox and keyloggers

So, I have installed Windows 7 in Oracle's VirtualBox (5.0.8) and I would like to know if the Windows 7 software (including viruses and malware) is able in the default VirtualBox settings access the ...
1
vote
2answers
226 views

KDE with plasma 5 doesn't automount the partitions anymore on Ubuntu

Until recently, kde was autommounting all my partitions after I was logging in. But, after an upgrade (a few months ago), this stopped happening and now I use krusader to manually mount the patitions ...
2
votes
0answers
131 views

DPKG Status Corrupted

My Ubuntu system has been giving me trouble whenever I try to install or uninstall or update software using apt-get. Whenever I run these commands it returns an error with regards my status file. The ...
5
votes
1answer
3k views

Keyboard layout changed. How and why?

Yesterday, I upgraded my kernel (to 3.5.0-19-generic), rebooted, and had to reinstall my video drivers to get full resolution. (After upgrading the kernel, the resolution always goes to 640x480, until ...
0
votes
1answer
157 views

Is there a Facebook IM client for Mint (or Ubuntu)?

A few years ago pidgin worked fine, but now I can't find one IM client that connects on Facebook.
1
vote
1answer
123 views

OpenVPN connection help. Multiple Tunnels

i have a system setup, mostly from reading posts and instructions and am having a bit of trouble. My basic setup multiple openvpn clients, e.g. macbook, android phone dd-wrt router / firewall ...
3
votes
1answer
170 views

How to get the name of a network interface that is down

I am using Ubuntu and am just curious as to tell the name of all network interfaces, even the ones I've taken down with sudo ifconfig wlan0 down (for example) as they no longer show up in ifconfig.
1
vote
1answer
199 views

Disk Partition when dual booting Ubuntu 14.04 onto Windows 10

I'm trying to dual boot Windows 10 and Ubuntu 14.04.3 from a USB stick. Really quick question, when I partition my hard drive in Windows and create unallocated space for the Ubuntu OS, is that space ...
3
votes
2answers
2k views

i3-wm not resizing screen resolution on login

I'm using Parallels for the Mac, but this may be relevant to other VMs too. Using Ubuntu 14.04, when I login using Unity it resizes the screen and uses all available screens (2 in my case), perfect. ...
1
vote
1answer
67 views

Keep x11 GUI app forwarded over ssh alive after lost connection

I am forwarding gftp with putty from my Ubuntu server to my laptop. Is it possible to run the program in a way that will allow it to continue working on the server if my laptop looses connection? ...
1
vote
0answers
28 views

infomap-nlp-0.8.6 in ubuntu

I am using infomap nlp for my academic project. After installing and building the model, initially it was giving a segmentation fault. I did some changes in the utils.c and I ran the program but it ...