Chandra X-Ray Observatory
	(CXC)
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Last modified: 9 December 2015

URL: http://cxc.harvard.edu/ciao/download/platforms.html

Platform Support


[IMPORTANT]
End of Support: 32bit Linux and OSX 10.6.8/10.7

CIAO 4.7 was the last CIAO release on 32bit Linux and OSX 10.6.8/10.7.

Some older versions of 64bit Linux can only run the 32bit binaries. This includes CentOS 5. These users will need to upgrade to be able to use the current version of CIAO.

CIAO 4.8 is available as precompiled binaries for the following platforms:

Linux 64 bit

The Linux64 builds are done on a CentOS 6.5 machine and have been fully tested on CentOS 6 and Fedora 20. The Linux64 build will not work on some older Linux operating systems, including CentOS 5 and earlier versions of Fedora.

Users have reported successfully installing CIAO on Debian based Linux distributions: Ubuntu and Linux Mint, on Fedora based distributions: Red Hat, CentOS, and Scientific Linux, as well as OpenSUSE and Mageia.

CIAO 4.8 does not run on standard installations of:

  • Any 32 bit Linux
  • Cent OS5
  • RHEL version 5 or lower
  • Slackware Linux (missing SELinux system library)

Mac OS X, 64 bit

There are two OSX binary releases.

The osxml64 build is built on OSX 10.8 (Mountain Lion) and is compatible with OSX 10.9 (Mavericks) and OSX 10.10 (Yosemite)

The osxElCap build is built on OSX 10.11 (El Capitan).

CIAO 4.8 does not run on:

  • Mac OS X 10.7 or lower
  • Mac PowerPC
  • Mac 32bit

X11 System Libraries

CIAO requires several X11 related system libraries to be installed. These are usually already installed on most end-user machines; however, they are frequently omitted when running on "headless" clusters.

Users are responsible for installing them via the package manager (e.g. yum, fink).

The names may differ slightly but here are the known packages:

  • X11
  • GL libs (Open GL or Mesa)
  • curses
  • libm
  • C libraries
  • C++ libraries
  • libz
  • pthread
  • crypt

Doing an ldd on our executables and libraries will produce a list something like the following list of system libaries that will either be located in /lib or /usr/lib.

libncurses.so.5	libXt.so.6 	 libgnutls.so.13
libm.so.6	libSM.so.6 	 libkrb5support.so.0 
libdl.so.2	libICE.so.6 	 libkeyutils.so.1
libstdc++.so.6	libXrandr.so.2	 libresolv.so.2
libgcc_s.so.1	libXrender.so.1	 libgcrypt.so.11
libc.so.6	libXinerama.so.1 libgpg-error.so.0
ld-linux.so.2	libXau.so.6	 libnsl.so.1
libX11.so.6	libXdmcp.so.6	 libsepol.so.1
libGLU.so.1 	libdl.so.2	 libz.so.1
libGL.so.1	libselinux.so.1	 librt.so.1
libXmu.so.6	libcrypt.so.1	 libpthread.so.0

Explanation of Platform Support

The CXC's commitment to support a platform - i.e. a version of an operating system - means that we undertake to fix bugs on that system. This requires that we are able to compile CIAO from source on each platform, which is a much greater commitment than simply providing a compatible binary. Additionally, it is typically necessary to support several versions of each operating system: former, current and new.

When we support a system:

  1. We test every tool on every platform via a large number of regression tests and scripts; this requires a greater amount of time when the number of systems increases.
  2. We have to have current machines running each of these systems.
  3. We make a tarball and install it on each system; this process is never problem-free, and takes manpower and time.

As a result, we are not able to support a larger number of systems than we currently do. We gather information from users on what platforms they are running (or want to use) in order to prevent the overextension of our resources.


Last modified: 9 December 2015
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