I want to monitor by FANOTIFY the Linux applications installed by snap but I was not able to do this, just applications installed by "apt-get" or "yum". The documentation is very weak and this task is a must to make my application suitable for all situations. Do you have any suggestion?
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Hi i have an application written in GTK and i would like to make it into an bootable ISO file.
I have tried many options but have failed and being sent in many directions using cmake and make by following several tutorials which did not work.
Does anybody know how to create an bootable ISO file for / from an GTK based application on linux / ubuntu?
I am currently using ubuntu to develop the bootloading application yet i would prefer the GTK application to startup when the computer starts up, and have no operating system running if possible?
GTK requires an operating system kernel (a Linux kernel...) to be running, and some display server, e.g. Xorg.
So you need to actually make your custom Linux distribution.
I would prefer the GTK application to startup when the computer starts up, and have no operating system running
This is not possible
But you could study the source code of source based Linux distributions like Gentoo and work for several months to make your own Linux distribution.
You probably would need help and address many issues you did not even thought of (e.g. AZERTY keyboard layout, computers with only USB disks, laptops with only Wifi network connections, etc...)
Notice that Debian & Ubuntu can be configured to boot some (open source) GTK based installation procedure. I guess you could study in details their implementation (since it is open source)
It's not possible to boot a GTK application without operating system, as Basile Starynkevitch said.
However, you can use Linux to display only your GTK distribution, without any additional programs and I think it can be done easier, than Starynkevitch's method.
You can try to use the tool Systemback or similar to create a bootable live Linux distribution. Systemback is not maintained anymore but there is a github fork made by BluewhaleRobot that appears to be more up-to-date.
You can install a light Linux distribution, for example Xubuntu, and remove all unnecessary packages and programs. You can set the wallpaper, remove or leave the taskbar/menu start etc. Then, install your GTK application, add it to autorun and use Systemback's "Live system create" function.
The ISO image should be created and your program should be already installed in it with autorun.
It's not a perfect and stable solution, however, it seems to be the easiest way to achieve what you want.
I am looking for design suggestions/documents etc. which contains specifics of system applications management in Linux (Ubuntu, Debian etc.)
Can you please point to a source of information or suggest a design?
I'm not sure to understand what you mean by system applications management (certainly it can mean several different things).
In practice, Linux distributions have some package management system to deal with that issue. init or systemd (etc....) is in charge of starting/stopping/managing daemons and servers. Its configuration is related to packaging.
Read also Ubuntu Packaging Guide and How To Package For Debian and Debian new Maintainer guide etc...
If you are coding some service application, read Advanced Linux Programming and about daemon(3) & syslog(3)
Also, study the source code of relevant system applications (similar to the one you are dreaming of), since Linux is generally (mostly) free software.
I want to be able to distribute a Linux running inside my application. The reason is that I need to add software functionality which is most easily added inside a Linux container and distributed with the application.
Is there any way to run a VM inside a C/C++ application on Windows, OSX, Linux?
VirtualBox has an API for creating/running VMs. The program Vagrant uses this to give developers a simple cross-platform way to develop. You can run vagrant up from Windows, Linux or Windows, and it does the same thing.
You can also script adding ports to your VM, so your C++ program could say "VirtualBox, boot me this image", then just connect to a TCP port to talk to the "Linux program". But debugging problems will be hard.
But if your goal is to sell a Linux program to non-Linux desktop people, it's probably best for you and your sanity to bite the bullet and port it to Windows/Mac. (Or go Cloud and sell it as a service.)
Two frameworks come to mind:
User mode Linux runs the Linux kernel as an application. This give you ultimate control over launching and managing the virtual machine from within a Linux application.
libvirt provides a toolkit for programmatically managing all manner of virtual machines.
These may both requires a Linux host. For other host operating systems, it may be necessary to manage the virtual machine manually -- or using ad hoc scripting.
QEMU can run a VM and it can be compiled on Windows and Linux and OSX. http://wiki.qemu.org/Main_Page
QEMU can be compiled as it is written in C++.
So in theory, QEMU could be embedded in a C++ program and used to run a Linux VM.
An example QEMU running Puppy Linux http://www.erikveen.dds.nl/qemupuppy/
I am developing a program similar to xbmc but only for movies. I was wondering if there is any very simple operating system that will basically just boot and run the program I am developing? Similar to what openelec does for XBMC. I can run it on windows but I want to be able to put it on a machine like raspberry pi without having to have a whole windows or linux OS.
I hope that makes sense.
Take a look at the rather slim linux distributions specialized in embedded systems, like firewalling distros and so on.
Then, if it is a graphical application you have to make sure you boot into runlevel 5 (graphics) and configure your application as login shell for the default user.
You might also be interested in two services the openSUSE project offers: the Open Build Service (OBS) and SUSE Studio:
OBS allows you to automatically get packages of your application built and packaged, ready for use in a number of wide spread distributions.
Studio allows you to go a step further and create a custom distribution for your own purpose: you can call it 'your' operating system, completely preconfigured for your purpose, with all requried software and your own application installed. You just have to download a CD image afterwards!
I have to check installation steps of my application on different production machines. I want to check how can I install my application on HP UX. I have only linux/windows machines but dont have real physical HP unix machine. Is there any way i can check installation steps of HP unix. I am thinking of any virtual environment or any flavour that run on linux or windows which gives accessiblity and functionality of HP unix.
I am looking something to cross check platfrom installation steps.
The short answer is no. HP-UX is as different from Linux as Linux is from Windows (almost). There would be many differences in libraries, patches, installed utilities, build tools, etc.
A few examples:
HP-UX does not come pre-installed with the bash shell
HP-UX uses a proprietary software packager and installer called swinstall (analogous to RPM but completely different)
Partition layout is different
Many common utilities behave differently. "echo" is one of many examples. This will affect things if your build process uses shell utilities
Even if you can test the install, don't you need to test the product's operation on HP-UX?
Not saying it's impossible. If your application uses basic, nonspecific utilities for install, it might work. There is no way to know without a running installation. Unfortunately you need Itanium hardware and the O/S.
My recommendation would be to get your application working on Solaris and any other Unixes first. The more platforms you test on, the more portable your code will become on all of them. Then, put out some feelers and find someone with a system you can borrow time on.
Worst case, find an Itanium server like an rx2620 on eBay, should not cost too much. Even better if the seller forgets to wipe the O/S :). You'll need a terminal and possibly null modem. 11.31 (11iv3) is the latest version of the O/S.