RISC OS Open

RISC OS  OPEN


A fast and easily customised operating system for devices using ARM processor cores.

Other items

ROM releases, software collections and source code

You can download the latest builds and releases of RISC OS for a number of different machines here. You can also download archives of source code and archives which contain collections of other RISC OS components (e.g. desktop applications, games, modules, etc).

It should be noted that any non-official ROM builds were made using snapshots from the RISC OS Open cvs repository so they include a wide range of updates and fixes which have been submitted by the community. You can build the latest ROM image yourself using the published RISC OS sources.

For each new release, it is expected that IYONIX Ltd will test the latest ROM image and, once they are satisfied that it meets with their test criteria, it will be released to existing IYONIX owners through this web site. You are strongly advised not to reflash your machine with a ROM image until IYONIX Ltd give it the all clear and call it an “official” release.

Unpacking

You should unpack any zipfile download, those which end in ”.zip”, using SparkFS, SparkPlug or a similar unzipping program – see our additional instructions here. Any downloads which are supplied as a (compressed) tarball, those which end in ”.tar” or ”.tar.bz2”, should be unpacked using our UnTarBZ2 application, which can be downloaded here. This application includes a Help file so you should be able to refer to that for further instructions.

Ensure you unpack the archive contents onto a filesystem that supports long filenames and more than 77 files per directory!

See this page for more information.

Ancillary downloads

IconName, date & MD5DescriptionVersionSizeDetails
iconCreateSEC
2010-02-13 15:47:28
e114852fc1f3459880c4ce3f110689b1
Self-extracting version of the CreateSEC front end and command line (self-extracting archive creator) tool.-182.2 KBinfo
iconHardDisc4
2010-02-13 15:49:23
b29847af9a2a9d0a206ce04ef83a60f0
Self-extracting version of the development HardDisc4 image.-8.6 MBinfo
iconUnTarBZ2
2010-02-13 15:49:26
008993e97d6267ec93449601d86f8870
Self-extracting version of the UnTarBZ2 front end and command line (archive decompressor and extractor) tool.-279.4 KBinfo

Collections of pre-built components

IconName, date & MD5DescriptionVersionSizeDetails
iconBoot
2010-01-18 13:58:39
fecdc8b9debf9972afbfeb343a18ac94
All of the released boot sequence-related components.-1.6 MBinfo
iconDesktop
2010-01-18 13:58:43
abacdbbf9d090b29ec5109dc042f914a
All of the released desktop applications.-3.1 MBinfo
iconGames
2010-01-18 13:57:42
3af8068b6e4ecb0834914d64d3978b37
All of the released desktop diversions and games.-277.7 KBinfo
iconHardDisk4
2010-02-05 00:22:01
46e7670abe4216b9809393e4ed938b51
RISC OS 5 disc image, including boot sequence and applications.-6.3 MBinfo
iconModules
2010-01-18 13:58:35
dec6c861457d99ae0a44df5a481d1e78
All of the released RISC OS relocatable modules.-1.3 MBinfo

ROM softloads

IconName, date & MD5DescriptionVersionSizeDetails
iconBeta Iyonix softload
2010-06-18 11:07:51
Development Iyonix RISC OS ROM image. (Includes Iyonix softload tool. Work in progress.) Only use this if you really know what risks you are taking!5.172 MBinfo
iconIOMD softload
2010-06-18 11:07:25
Development RiscPC ROM image. Runs on A7000 or RiscPC. (Includes softload tool. Work in progress.)5.171.8 MBinfo
iconIyonix softload
2010-01-23 20:21:23
ef2664ccf0629dc79c6cee99785a2d03
Official Iyonix RISC OS 5.16 release from Castle. (Includes Iyonix softload tool.) See our press release for more information.5.162 MBinfo

ROMs – miscellaneous

IconName, date & MD5DescriptionVersionSizeDetails
iconBeagle ROM
2010-08-16 15:15:11
Development Beagle ROM image. (Work in progress.)5.171.9 MBinfo
iconBeta Iyonix ROM
2010-06-18 11:06:35
Development Iyonix ROM image file. (Work in progress.)5.172 MBinfo
iconIOMD ROM
2010-06-18 11:06:09
Development A7000 and RiscPC ROM image. (Work in progress.)5.171.8 MBinfo
iconIyonix Flash
2010-01-23 20:20:12
48e6bec991c7bb2a10062c1e58f985cf
Flash ROM programmer for official Iyonix RISC OS 5.16 ONLY. See our press release for more information.5.162 MBinfo
iconIyonix ROM
2010-01-23 20:20:47
2db9b86c809f5269a10f8d66ae67271d
Iyonix 5.16 official release ROM image file.5.162 MBinfo

Source code archives (rebuilt daily)

IconName, date & MD5DescriptionVersionSizeDetails
iconBatch 1 to 6
2010-09-03 03:37:20
Batches 1 to 6 combined into one source code archive. (Obsolete. Historical interest only.)-30.7 MBinfo
iconCVS
2010-09-03 03:55:27
The complete cvs source repository as a compressed archive.-51.3 MBinfo
iconCVS (daily)
2010-09-03 03:00:16
Changes to CVS repository over past 24 hours (rebuilt daily).-1.4 MBinfo
iconCVS (monthly)
2010-09-03 03:00:17
Changes to CVS repository over past month (rebuilt daily).-2.1 MBinfo
iconCVS (weekly)
2010-09-03 03:00:17
Changes to CVS repository over past week (rebuilt daily).-1.9 MBinfo
iconIOMD
2010-09-03 03:41:27
Source code for the development IOMDA7000 and RiscPC – ROM build. (Work in progress.)5.1716.1 MBinfo
iconOMAP
2010-09-03 03:45:39
Source code for the development Beagle ROM build. (Work in progress.)5.1716.4 MBinfo
iconTungsten
2010-09-03 03:49:51
Source code for the official Iyonix 5.16 development ROM build.5.1615.5 MBinfo
iconTungstenDev
2010-09-03 03:53:40
Source code for the development Iyonix ROM build. (Head revision. Work in progress.)5.1717.3 MBinfo
   .   

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Commercial use

For commercial enquiries, please contact the owners of RISC OS, Castle Technology Ltd.

ROOL Store

The official C/C++ Development kit and more here.

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