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Free download ibcs-us Linux app to run online in Ubuntu online, Fedora online or Debian online

This is the Linux app named ibcs-us whose latest release can be downloaded as ibcs-us-4.1.6.tar.gz. It can be run online in the free hosting provider OnWorks for workstations.

Download and run online this app named ibcs-us with OnWorks for free.

Follow these instructions in order to run this app:

- 1. Downloaded this application in your PC.

- 2. Enter in our file manager https://www.onworks.net/myfiles.php?username=XXXXX with the username that you want.

- 3. Upload this application in such filemanager.

- 4. Start the OnWorks Linux online or Windows online emulator or MACOS online emulator from this website.

- 5. From the OnWorks Linux OS you have just started, goto our file manager https://www.onworks.net/myfiles.php?username=XXXXX with the username that you want.

- 6. Download the application, install it and run it.




This replaces of https://sourceforge.net/projects/ibcs64/. It is the same thing implemented in user-space. iBCS64 is a fork of https://sourceforge.net/projects/linux-abi/ that ported it to amd64.

All available documentation can be read online at http://ibcs-us.sourceforge.net/

In summary: if you run "ibcs program args", where "program" is a statically linked binary (elf, coff, elf) that ran on Xenix, SCO SVR4, SVR4, wyse or similar operating system, there is a chance it will run under Linux.

If it doesn't run you can probably get it to run if you have a platform it does run on and know C. See the README.txt in the source for more information.


  • Runs on any version of Linux that supports rt_sigaction, which is every verison from 2.2 onwards.
  • Runs on both amd64 and x86.
  • Doesn't use any library except those required by the compiler (-lgcc for gcc).
  • Has no run runtime dependencies whatsoever.
  • The emuation runs at native speed (it is as fast as the previous kernel implementation).
  • All options are controlled via the command line each time a program is run. There are no compile time options, nor are there any global options like kernel module settings that effect all programs.

This is an application that can also be fetched from https://sourceforge.net/projects/ibcs-us/. It has been hosted in OnWorks in order to be run online in an easiest way from one of our free Operative Systems.