Questions tagged [development]
Development refers to the development of the Ubuntu source code through the implementation of new features and the fixing of bugs.
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Warning during update: cryptsetup: WARNING: failed to detect canonical device of /dev/sda1
Preamble: Few years back I dropped my laptop, it subsequently failed to mount the sda1 disk. I recovered it mounting it with a live usb ubuntu distro. Ever since, my laptop has never been as smooth ...
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1
answer
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rkhunter warning /dev files
I recently installed rkhunter and it gave me two warnings for /dev files is there any way to find a list of normal files in /dev?. I only ask because I ran wireshark and found several ip address ...
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1
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Ubuntu Snappy for a development machine
So Ubuntu Snappy core is supposed to be super lightweight. I was thinking to put that on a server, ssh to it and use it to write code.
Would that work? Does it come with desktop environment? Can I ...
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Can I write an app for Android/Ubuntu Phone and openly recommend Ubuntu as a software platform legally?
I am a developer planning to write an app for a local high school. This app will most likely be a free/open source program made on Ubuntu. I am also planning on openly recommending Ubuntu to all ...
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Where is the source code of Ubuntu and how do I compile it?
I really want to make my own distro of linux but I do not know where to find the source code. Also I don't know how to compile it, is there any special way to compile Ubuntu and install everything.
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Do I need a Qt account?
I was thinking about writing code for Ubuntu and have a question. Do I need a Qt account in order to develop for Ubuntu?
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1
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What is exactly Linux From Scratch? [closed]
I want to developing a Linux From Scratch but is that custom Linux like based on some kind of linux ? I installed an ubuntu, when I make LFS it would be base on Ubuntu?
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0
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How can I create a chromium-like background app?
I want to create an application that (like chromium) creates an icon on the top menu bar and after you close the application, the icon is still there and the application continues running in the ...
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Add and remove update channels in an easy terminal way
I know there is a GUI in Ubuntu Software & Updates to enable the update channels
updates
proposed
backports
security
as shown in this screenshot:
I am looking for an easy way to do this from ...
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3
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1
answer
40
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Developing software for Ubuntu [closed]
So I noticed that programs such as dd or Unetbootin won't work for Windows images, and I wrote a program that does just that. Now it's really just a python script that uses some command line software ...
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Documentation for GNOME application code?
I want to get involved in GNOME development, however I have one problem, there is such a large amount of code in every package, and so many files and variables that it's really hard to find bugs ...
user364819
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How to make a flashable zip of ubuntu touch?
I've followed the proceedure in
https://developer.ubuntu.com/en/start/ubuntu-for-devices/porting-new-device/
to make a ubuntu build for my device.
Now I want to try this rom in my mobile.
I want to ...
- 2,726
0
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1
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14 LTS, /usr/bin suid flags, looking for an offical developer
My first goof in 5 year using Ubuntu, but a big one.
Trying to get strongloop working, I chowned /usr/bin to my user account, and back to root ( only to realize a bit later that by doing so I erased ...
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1
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lubuntu: How do I run .64 files?
I have problem with a .64 file I downloaded from the Godot Engine website.
How do I execute this file?
I really have no clue.
Thanks you.
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1
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umake - Unity3d installation failed
when I install Unity3d via umake utility i get following error message.
Choose installation path: /home/unknown/tools/games/unity3d
Downloading and installing requirements ...
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1
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How to remove unity3d game engine from Ubuntu (and its dependencies)?
I have installed it from .deb package. I can't find packages that I should remove.
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Get a cd of Ubuntu developer version by post
How can i get the latest Cd of Ubuntu Developer version 14.04.3 by post?I received a Cd of older version of kubutu by post.
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1
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How do I know whether I'm running a devel version of Ubuntu?
I have found this question:
How can I find the version of Ubuntu that is installed?
and so can find what version of Ubuntu I'm running.
Now, it does not seem to say anything about a devel version. ...
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0
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create ios apps in ubuntu [duplicate]
I need to develop an app for iphones. I have a laptop that runs on ubuntu. Can we develop the complete code, run and test it on ubuntu machine?
Thanks
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1
answer
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New line in python script creating EOL error [closed]
I'm creating a Python program for Ubuntu, and I need to write a python script into a file, but the \n in the code creates a new line in the file, it isn't copied as \n, so I get an EOL error.
This is ...
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1
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What should I name my install instructions for ubuntu centric applications?
Just wondering if there was a standard for this sort of thing, particularly for debian packages.
I see in here for the license, LICENSE.LGPL
I'd like to add some install instructions to my own, but ...
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0
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Which system monitors are able to show me a non-rounded memory usage?
Backstory:
I am trying to detect memory leaks in a program by viewing the memory used from the system monitor, and seeing if it rises while doing a certain activity.
System Monitor unfortunately ...
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2
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0
answers
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Application rejected on myapps.developer.ubuntu.com. What can I do?
I submitted a desktop application on myapps.developer.ubuntu.com long time ago. But it was rejected today with the following reason:
This package submission process is now deprecated.
To provide my ...
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1
answer
356
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Can't generate makefiles in MonoDevelop 5.5
I'm trying to build a package on Ubuntu 15.04 using MonoDevelop 5.5, and I can't generate makefiles. When I press the Project menu, there is no such option. When I try to create package, I only have ...
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Setting up Web Root for LAMP and never worry about it again
I made a fresh install of Ubuntu in my laptop. I just installed the LAMP stack and phpmyadmin.
I tested them with http://localhost and http://localhost/phpmyadmin and they're working fine.
Now I've ...
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1
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Android Studio fails downloading SDK Components [duplicate]
I installed android studio using ubuntu-make like
umake android
after starting android studio, it asks some questions and then starts downloading SDK components, but it never finishes that ...
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1
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346
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Does Android Development obviate 32-bit Linux
Recently I encountered the following error while trying to emulate Android using Cordova:
ERROR: 32-bit Linux Android emulator binaries are DEPRECATED when attemping to run the Android emulator
....
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2
answers
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Why are workspaces disabled by default?
In the recent versions of Ubuntu, workspaces are disabled by default. Is there a specific reason for this.
I know how to enable them, but I wish to know the reason why the developers choose to ...
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0
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Potentil developer. ;) [duplicate]
I am a 16 year old boy from Austria which want`s to start developing apps for ubuntu (mobile). Are there some links for a newbie like me? ^^
Sorry if I am new. Just wanna try to develop and take a ...
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Error, even with sudo: "dd: failed to open ‘/dev/sda1’: Permission denied" (dd input piped from gzip)
My command which doesn't work:
sudo gzip -dc sda1.image.gz | dd of=/dev/sda1
returns the following error even before I've had a chance to enter my password:
dd: failed to open ‘/dev/sda1’: ...
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Unity8 Development install troubleshooting
First attempt at getting into development with Unity and in a Linux box. I was able to pull down the trunk and (I think) build its dependancies, but it doesn't feel like I've done this right and I ...
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GImP Plugin: unable to access GimpDrawble or Gimpimage resolution
m trying to get image resulotion in a plugin I m writing. But when I call resolution function the plugin crashes saying image does not exist..... But I can access the drawble , plz tell if there us ...
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scope developing / how to change scope result inside perform_action
I became bit lost with how to set a result attribute or trigger scope search (refresh) inside Scope::perform_action method or in methods of ActivationQuery object. The idea is to change data in a ...
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How to cross compile the qtmultimedia-opensource-src for armhf?
Repost from
https://answers.launchpad.net/ubuntu/+source/qtmultimedia-opensource-src/+question/264619
Cross
I can't figure out how to build it with cross compiler (on trusty-amd64 for utopic-armhf):...
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Where do I give ideas? [closed]
I just had an idea. Someone must have probably thought of this and I'm not sure where to write this but here it is.
We drag a file onto another file and a new folder is created with both files inside ...
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Touch as IP camera
What is the easiest way to set up Touch device with cameras to share them via IP, so these cameras could act as video devices (webcams) of the Ubuntu desktop?
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ubuntu package developing trying to overwrite config of other package
I've build a custom debian package with shuold overwrite configs of lightdm (autologin). My install script (debian/install) contains the following lines:
lightdm/* /etc/lightdm/lightdm.conf.d/
But I ...
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1
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Where are the headers with IOCTL numbers for ext4?
I am looking for ext4.h, or another file that contains EXT4_IOC_*. There is nothing in /usr/include or /usr/src. I have linux-headers-generic installed. I am on Kubuntu 14.10. Where are the headers?
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2
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437
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LibreCAD. New versions
I am user of LibreCAD and I haven't seen any new version of it since June last year. But the new versions continue to release. These versions are for Windows and Mac. LibreCAD web page still says that ...
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Problem setting up Environment for 'make' command execution
I am trying to set up devkitPro for ARM use, but I continuously get an error while executing the last two commands. The commands are make and make install.
The tutorials I am following:
http://...
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2
answers
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SSH keys from USB Stick
I have a couple of desktops, a couple of laptops and a netbook. Some of these devices still run windows. I use these machines to connect to Launchpad, where my projects are hosted. I'm really ...
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0
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Question about libmatio-dev
I want to install libmatio-dev, but a specific version (1.3.4-2). Whenever I run sudo apt-get install libmatio-dev, I get 1.5.2 installed instead. How do I force the install of 1.3.4-2?
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What does it mean if (development branch) is part of the title?
I apologize for what is probably a stupid question, but my google- and stackoverflow-fu has failed to positively reveal the answer to my question:
What does it mean if a branch (such as Ubuntu Utopic ...
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Ubuntu SDK, Ubuntu touch app: "Error: Error opening shm."
I am building an app for Ubuntu Touch. It works well on desktop, but when I try to open it on nexus it starts opening a splash screen but immediately crashes.
Here's the logs:
t_shm() at lttng-ust-...
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2
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Ubuntu SDK: How can I see error logs for my ubuntu touch app?
I've built an ubuntu touch app, it works well on desktop, but when I install it on the device and try to launch, it crashes. Where can I find error logs or any other output that the app can give me to ...
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0
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Ubuntu SDK, QML: how do I create a vertical slider?
I am trying to create a vertical slider: http://developer.ubuntu.com/api/qml/current/Ubuntu.Components.Slider/
How can I do that?
Just rotating it doesn't seem like a good idea, it messes up anchors ...
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2
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1
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293
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Ubuntu SDK, how do I create a tree view in QML?
I have json data that defines comments that have children.
I am trying to display nested comments(like in hackernews or reddit) in my app.
What is the best way to go about doing it?
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How can I use emacs instead of Ubuntu SDK to write Ubuntu Touch Apps?
I want to use emacs and console tools instead of Ubuntu SDK to edit and debug my projects.
Where can I learn about doing that?
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Import new package to older release
I have uploaded a new package to Debian. It has recently reached Debian unstable and Ubuntu development branch (currently Vivid).
How do I get this new package into the currently supported stable ...
user180409
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1
answer
242
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How can I run arbitrary commands as part of a deb package install?
I'm creating a ppa deb package for a python module, replacing a pip package (which I also created), and I would like to run "pip uninstall" as part of the deb installation.
How can I run "pip ...
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