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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2
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1answer
54 views

What happens step by step when using “rm -rf directory”? [duplicate]

Let's assume that I have 150 GB of data in a directory and I have accidentally run this command for a directory. Suddenly I realised, I should not put "/" in the beginning of directory and I ...
1
vote
1answer
149 views

How to use afl-fuzz (American Fuzzy Lop) with openssl

I am trying to use afl-fuzz with openssl in Ubuntu. A normal usage of afl-fuzz would be: afl-gcc test.c //-- this will produce a.out mkdir testcases echo "Test case here." > testcases/case1 ...
2
votes
1answer
17 views

Copy initramfs to a specific place after build?

I've been hacking on a Raspberry Pi with an Ubuntu 15.04 image. Since I've got an encrypted boot setup, I need to generate an initramfs.gz image in the first partition of the filesystem, which is the ...
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0answers
21 views

not Booting a newly linux kernel inux-2.6.32.65.tar problem

when i give reboot command kernel not booting screen showing.. i uploaded this pic here , and caps lock key blanking
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0answers
60 views

How do I persistently set the MTU for a PPTP VPN connection in Ubuntu?

I have a M$-based VPN connection that I connect to every so often. After connecting to the VPN server, I need to run sudo ifconfig ppp0 mtu 1200, So that I can log on to the server, or else ssh client ...
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0answers
47 views

Fatal error in MPI (rank 1 PID 13862)

I am running a program in a server with Ubuntu 3.16 that requires to specify the number of node and cpus per node to be used. It runs with mpirun. Some details about the server first: Architecture: ...
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0answers
34 views

efivars error while restoring image from CloneZilla

I am trying to restore a ubuntu image from a disk which was cloned using cloneZilla. While performing restoreparts I am getting the following error: Directory /sys/firmware/efi/efivars NOT found". ...
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0answers
25 views

Problems launching Ubuntu from rEFInd on Yosemite

Firstly apologies if this should be posted on a mac stack exchange group. Ive been running Ubuntu on my macbook pro for a while now and not had too many issues, recently however I have hit a wall. I ...
1
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1answer
36 views

KODi and terminal are not reacting to all buttons from remote control (rc_core)

I have bought a NUC5i5RYH, which has an integrated IR-receiver. I've installed Ubuntu 15.04 which comes with rc_core automatically activated. ir-keytable -t works fine and shows ALL keys from my ...
0
votes
1answer
58 views

Setting LD_LIBRARY_PATH

I am trying to run a program in a server with Linux Ubuntu 3.16.0-31-generic and it gives me the following error: error while loading shared libraries: libmpich.so.3: cannot open shared object ...
2
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0answers
50 views

Sound Problem in ubuntu startup

When Ubuntu boots first time, no sound comes out of speakers. But when I insert any headphone the sound is OK. also when I insert headphone first time and eject it from laptop then sound comes fine ...
0
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0answers
49 views

Install quickBooks in a server Ubuntu 14 64bits (I have the fedora instructions)

Hi I try to install qb in a server ubuntu 14 64 bits, all the system is for fedora. the steps I make: dowload the package qbdbm_25.0.i386.rpm installer, (don't exist 64bits) add 32 bits ...
1
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1answer
58 views

Access Macintosh HD from Ubuntu - Permission denied

I've followed this instructions and now I'm able to access my Machintosh HD from Ubuntu, the problem is that I can't access the folder I need (example Desktop), it say that I haven't enough ...
0
votes
1answer
32 views

ignore failing, non-OS drives?

Context: Remotely located machine with desktop ubuntu 12.04, 2 data drives, 1 OS drive, all specified in /etc/fstab. Issue: During boot one SATA data drive does not respond, and machine will not ...
0
votes
1answer
34 views

LinuxMint “File System” shows no space when many GB exist

I have a VM running LinuxMint 17.1. I just resized the virtual disk, then used a live CD to resize the system partitions. I now have 18GB+ free. However, when I look in Files, "File System" shows as ...
0
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1answer
53 views

Linux Desktop Keeps freezing

I have a Ubuntu 10.04 , I have recently been playing Minecraft by using the,"Minecraft.jar" After about 6-10 Minutes, My desktop suddenly freezes. Sometimes, I just spam Ctrl+ALT+* Sometimes it works ...
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0answers
14 views

Windows scattered across virtual desktops after waking up from sleep

My setup is two external screens connected to a docking station and the laptop screen all running (thanks, Lenovo!). I have four virtual desktops (Ubuntu 14.04, Unity). At any point I might have one ...
0
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1answer
49 views

Restrict user to do SFTP on the www folder owned by www-data group

I would like to create a new user with read/write privileges ONLY in the /var/www/ directory including all sub-directories. The /var/www/ is owned by a group called www-data. Best way to do it I ...
1
vote
1answer
69 views

Can't use Python3 Package Installer

I successfully installed Python3's Pip and SetupTool packages by: sudo apt-get install python3-pip but when I try to download/install any package for Python3 by: pip install <package-name> ...
0
votes
1answer
33 views

Issue on updating Linux Ubuntu

As LU is strongly suggesting me, I want to update my packages but a problem (which I hadn't encountered before) interrupts upgrading process. Some specific packages fail to be downloaded. They are: ...
0
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0answers
33 views

Openbox Session mount webcam/other usb devices?

I am following http://thepcspy.com/read/converting-ubuntu-desktop-to-kiosk/ guide to turn my Ubuntu into a Kiosk, and everything works fine except when my Google Chrome boots it doesn't have any of my ...
4
votes
2answers
92 views

Function Keys no longer available for Switching Workspaces

For about 15 years I have assigned a workspace to each function key (F1-F10) in whichever Linux/X environment I'm using. Yesterday I ran a normal software update on my work Ubuntu box and now, ...
0
votes
1answer
130 views

How to start 2FA-using OpenVPN with systemd?

I have openvpn config that users 2 factor authentication. If I start it manually, by running: /usr/sbin/openvpn --writepid /run/whatever --cd /etc/openvpn/ --config /etc/openvpn/work.conf it asks ...
1
vote
0answers
11 views

How to recover data after memory module errors [duplicate]

My linux PC has suffered the occasional application crash, desktop crash, and kernal panic over the last few months. I also started noticing error dialogs on login, and some parts of the desktop do ...
0
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0answers
21 views

Compiling ksymoops tool on Ubuntu 12.04

I need to build ksymoops tool as standalone for kernel panic analyse. ksymoops source code can be downloaded from this link When I compile it on Ubuntu 12.04 it shows error: ...
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0answers
17 views

RDP enters command prompt automatically

Why is this? I did remote desktop connection from mac to ubuntu server. I get a command prompt automatically for some reason.
1
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1answer
27 views

Pasting with vim squeezes content in between previous content and margin

I'm learning my way around the vim and got around to copy-paste. Or yank-paste. Now when I try to paste a yanked piece of text, it pushes previous content to the right and squeezes in on the left. I ...
0
votes
1answer
59 views

Disable PAM login but keeping landscape-sysinfo y motd

Running Ubuntu Server, I have no need for PAM login, and thus disabled this service in the sshd_config file. However, oddly, there is some login info that is only displayed if you enable PAM logins ...
0
votes
3answers
166 views

DNS Issue in ubuntu 14.04

I am facing DNS resolving issue sometimes in my Ubuntu 14.04.2 LTS trusty. I have configured my system with network manager to work with static IP assignment. I have also tried by changing DNS server ...
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0answers
62 views

Will booting ubuntu in recovery mode use default keyboard layout?

I have a chromebook with Ubuntu 15.04 and I need to customize some of my keyboard keys in xkb. Unfortunately while doing so I managed to disable my keyboard and needed to boot from live USB to revert ...
1
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0answers
72 views

Installing a light vim colorscheme on gnome-terminal

I'd like to install a light color scheme for my vim, but it never seems to work (I tried several now). What I'm trying to obtain is something like you can see in this screenshot of mayansmoke: ...
0
votes
1answer
51 views

Hyphen/Dash “-” Symbol's use in Linux bash /dir + GRUB booting for newbs

I am attempting to complete this GitHub tutorial on creating a custom GRUB loader for a stubborn Asus Win8.1 laptop on which I am hoping to install Ubuntu: ...
0
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1answer
167 views

lsd-slam installation failed during rosmake

I am trying to install the lsd-slam library without success. When typing during the last step of the installation: rosmake lsd_slam I got this output: [ rosmake ] rosmake starting... ...
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0answers
27 views

How to get miniature(live thumnail preview) of open windows on linux?

Gnome-shell does it in the 'activities' screen, unity/compiz has it in 'Spread','Shift','ALT-Tab'. How do I get those live window previews in C++?
0
votes
1answer
81 views

Using `minicom` not able to access the root file system

I am trying to use minicom for my serial cable communication to the target but I am not able to access the / of my remote device.I tried setting up ttyXX for minicom using sudo minicom -s but still I ...
0
votes
1answer
68 views

How to add shortcut to Cinnamon taskbar

I am using Ubuntu 14.04 with Cinnamon desktop. After trying to create a shortcut for a PDF file to Cinnamon's Taskbar, I found maybe I should have searched for a folder containing the Taskbar's ...
0
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0answers
28 views

Custom ubuntu install to enable wifi on inspiron-1501 w/o wired ethernet

I am helping a small non-profit install ubuntu on some (40) donated inspiron's. To get wifi running I need to install some additional packages: b43-fwcutter firmware-b43-installer. I would ...
4
votes
3answers
127 views

What is the difference between home$ and ~$?

I'm learning Linux, and I'm a little confused right now. In the below screenshot, I was not able to understand the third shortcut of Table 2-1. It says that cd ~user_name will change the working ...
0
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0answers
29 views

How to check if Nginx + Ruby on Rails web application is down?

I am very new to *nix system. I have below setup: OS - Ubuntu 14.14 Web Server - Nginx with Passenger Web Application Ruby on Rails web application Please tell me what tools to use to achieve: ...
0
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3answers
123 views

how can I build older version of gcc?

I am on Ubuntu 14.04.2 32 bit platform and I have gcc 4.8.4 installed. I want to build old version of gcc (2.95.3) to compile older version of linux kernel. I tried to follow this gcc-2.95.3 and this ...
0
votes
1answer
129 views

How to mount VMware-tools cdrom inside a VM

I know this should be easy, but I'm having a hell of a time figuring out where the vmware tools cdrom is (for instance it's not /dev/cdrom) and so I can't figure out how to mount it. I'm on Kali ...
1
vote
1answer
38 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 ...
0
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0answers
46 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
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0answers
69 views

Can't boot Windows XP from Grub2 in Ubuntu 14.04.2

I can't boot my Windows XP OS on a dual boot with Windows XP and Ubuntu 14.04.2. I already tried the command update-grub without improving. I can see the menu entry in Grub but when I choose Windows ...
1
vote
4answers
103 views

How to stop minute cron job?

I have a program written in python; my program scrapes a value from some financial website every minute and pushes that value into my DB. My program takes like 1 or maximum 1.5 seconds to do this ...
1
vote
1answer
34 views

Ubuntu runned on my usb stick meets often segmentation faults

I've installed ubuntu on my usb stick Sandisk Extreme http://www.sandisk.com/products/usb/drives/extreme/ , which is hardcorely efficient. But I met a trouble. In the random moments of the time ...
2
votes
1answer
229 views

'Docker' File System - Compatibility with Symbolic Links

The question is marked in bold if you wish to skip the explanation of our situation. I work as a developer for a server network. We deploy multiple instances of our servers. we have 5 types of server ...
1
vote
2answers
74 views

Run commands “without” terminal [closed]

Months ago I saw a guy running commands from a small, text-box-like window, showing nothing else other than the text-box for you to write the command. Such text-box would popup by pressing some ...
2
votes
2answers
63 views

Peculiar issue with ping

I'm using ping from package iputils-ping (3:20121221-4ubuntu1.1) on Ubuntu 14.04. When pinging a host host2.lan with IP 192.168.1.20 that is down initially but comes up during the run of ping, I see ...
1
vote
1answer
56 views

Permission denied (failed to create pid) when starting SphinxSearch [closed]

When I try to start the SphinxSearch service like this /etc/init.d/sphinxsearch start or this sudo /etc/init.d/sphinxsearch start I get the following error Starting sphinxsearch: Sphinx ...