Emulating the XO

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(Quick Start for Developers: Note builds 463,461 don't boot under qemu. So we're still at 445.)
 
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In the past, OLPC produced alternative software images which could be run in emulators such as QEMU and VMware. This meant that development and testing could happen to a limited extent without requiring an XO laptop.
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== Quick Start - [[LiveCd|LiveCD]] ==
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'''In 2013, please see Tom Gilliard's many [http://wiki.sugarlabs.org/go/Sugar_Creation_Kit virtual machine images ready-to-go].'''
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For many, the [[LiveCd|LiveCD]] is the easiest way to try [[Sugar]].  It's easy to do, but your work is lost when you reboot.
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Note, XOs are readily available to genuine volunteer contributors through the [[Contributors program]].
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== Quick Start - [[Emulating the XO/Quick Start|Emulation]] ==
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'''[[Emulating the XO/Quick Start|Emulation]]''' is the other way to try [[Sugar]].  It can be harder to set up,, but work is preserved.
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:Sound in [[TamTam]] may not be working at the moment. [[User:MitchellNCharity|MitchellNCharity]] 13:16, 5 June 2007 (EDT)
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== Quick Start for Developers ==
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Developing on emulation is one alternative for developing software.
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Get [http://olpc.download.redhat.com/olpc/streams/development/LATEST/devel_ext3/olpc-redhat-stream-development-devel_ext3.img.bz2 the latest image]
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from [http://olpc.download.redhat.com/olpc/streams/development/LATEST/devel_ext3/ here].  ''(add link to tinderbox)''
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Install QEMU and kernel acceleration as described in [[Emulating the XO/Quick Start]].  See [[/Help_and_tips#Development]].
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Builds 463,461,451 do not boot under qemu.  445 is known to work.
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== Overview ==
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One way to run oplc software is using an emulator on your pc.  See [[Getting started programming]] for other options.
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Note '''[[:Category:Emulation]]''' and '''[[Emulating the XO/Help and tips|Help and tips]]'''.
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For play, you can use [[LiveCd]] or [[Emulating the XO/Quick Start|Quick Start]].
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For development, you can use [[LiveCd]], or qemu (as in quick start, but with a different image), or perhaps one of the [[Developer Images]] other than the LiveCd.  An alternate approach is to attempt [[:Category:Installing_Sugar|installing sugar]].  See [[Getting started programming]] for a comparison.
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A common development approach is to use [[QEMU]] with kqemu acceleration.  See [[Emulating the XO/Quick Start|Quick Start]] for the basics.
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Though for development, we will use a different .img, one with a few extra utility programs.  See [[OS images]], including '''[[OS_images#Latest_Stable_Build |latest stable build]]'''.
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Instead of qemu, you can run [[Emulating the XO/UsingVMware|VMware]], and there are additional options on a [[Emulating the XO/Mac|Mac]].
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Please report your experiences in [[User Feedback on Images]].  There is a [[Virtualization Common Room]].
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There are [[Emulating the XO/Limitations of XO disk images|limitations with XO disk images]].
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The LATEST-STABLE-BUILD versus LATEST build distinction is mostly of interest to people running on actual XO's.  In emulation, developers should usually use LATEST.  And when STABLE is old, non-developers probably should too.
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== Comparison of alternatives ==
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An OLPC laptop is custom hardware, running a stripped-down Red Hat linux, running [[Sugar]].  But what if you don't have a real olpc laptop?  There are a several options, which can each be used in a couple of ways.
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=== recomendations ===
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{| border=1 cellspacing=0
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|- style="background:lightgray; "
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! platform !! purpose !! recommendation
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|-
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| Windows || development || emulated xo disk image; or emulated Ubuntu with sugar-jhbuild; (or develoepr CD or LiveCD)?.  (''need your reports'')
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|-
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| Mac || development || emulated xo disk image; or emulated Ubuntu with sugar-jhbuild; (or developer CD or LiveCD)?.  (''need your reports'')
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|-
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| Mac with Parallels || development || install Ubuntu 32-bit, and [[Sugar on Ubuntu Linux]].  See [[/Mac]].
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|-
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| Ubuntu 32-bit || development || [[Sugar with sugar-jhbuild]] and [[Sugar on Ubuntu Linux]]
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|-
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| 32-bit linux || development || [[Sugar with sugar-jhbuild]]
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|-
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| 64-bit linux || development || xo disk images under qemu; or [[LiveCd]] once it gets updated (currently it's April)
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|}
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:I don't really believe the development option of Windows/Mac developer/live CD.  I've not yet heard of it actually being used.  They are months out of date (April).  But [[User:Mcfletch|Mcfletch]] said (in May) it's an option, so I added it.  [[User:MitchellNCharity|MitchellNCharity]] 09:19, 23 June 2007 (EDT)
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=== background ===
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{| border=1 cellspacing=0
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|- style="background:lightgray; "
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! option
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! updated !! sound? !! camera? !! library? !! etoys? !! R/W? !! development software? !! net? !! comments
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|-
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| [[:Category:Installing Sugar|Installing Sugar]]
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| continuous || yes || yes? || yes? || yes
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| yes || your own || yes
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| On some platforms, it takes time and space (hours and ~3GB), but "just works".  On others, it is quite difficult to install.
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| [[:Category:Installing Sugar|Installing Sugar]], on a virtual 32-bit Ubuntu, running in an emulator (qemu, parallels, or vmware)
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| [[LiveCd]]
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| April || yes(boot) yes?(qemu) || yes?(boot) no(qemu) || no || yes
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| no || toolchain, Gnome || yes?
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| Alternative Quick Start.  Can both be booted from, and used in qemu.  Problems: A.
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|-
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| colspan=10 style="background:lightgray; " | [[OS images|XO disk images]]:
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|-
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| colspan=10 | LATEST-STABLE-BUILD <span style="font-size:80%; "><tt>http://olpc.download.redhat.com/olpc/streams/development/LATEST-STABLE-BUILD/</tt></span>
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|-
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| ...development-ext3.img
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| ~monthly || yes/B || no || yes || yes
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| yes || no || after config
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| Quick Start for getting a look at Sugar.
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|-
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| ...development-devel_ext3.img
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| ~monthly || yes/B || no || no || yes
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| yes || a little || after config
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|-
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| colspan=10 | LATEST <span style="font-size:80%; "><tt>http://olpc.download.redhat.com/olpc/streams/development/LATEST/</tt></span>
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|-
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| ...development-ext3.img
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| ~daily || yes/B || no || yes || yes
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| yes || no || after config
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|-
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| [http://olpc.download.redhat.com/olpc/streams/development/LATEST/devel_ext3/olpc-redhat-stream-development-devel_ext3.img.bz2 ...development-devel_ext3.img]
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| ~daily || yes/B || no || no || yes
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| yes || a little || after config
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| Good for new developers (requires some command-line comfort).
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|-
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| colspan=10 style="background:lightgray; " | OTHER
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| [[Developer Images#Big Fedora Core 6 Build|FC6+Sugar]]
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| April || yes? || ? || ? || no
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| yes || Full Fedora Softare Dev. || yes
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| 6GB (April version: no etoys)
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|}
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Key:
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:library: A library of sample content is included (english version).  Ie, pretty text to web browse without having to get network.
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:R/W (writable): With an .img, you can save things between sessions.  With a .iso, your environment is the same each time you start.
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:development software: are development tools included?
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:Net (network): does the network "just work" or "manual" steps are required?
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Problems:
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:A: LiveCd (April) on fc6 x86_64, kernel panics under kqemu.  A squashfs problem.
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:B: Tam Tam is silent (though EToys makes noise).  Cause unknown.
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Notes:
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*re "does sugar-jhbuild support camera/mic?": "yes, if the camera uses v4l2 and 640x480, I'd suspect so."  Can someone confirm this? (#olpc, now) [[User:MitchellNCharity|MitchellNCharity]] 00:16, 2 June 2007 (EDT)
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Doables:
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*Remove LiveCd's "?" above.
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*Find out what's going on with Tam Tam sound.  It would be nice for the xo disk images to all be sound-yes.
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*Add a microphone column?  Reconsolidate sound/camera/mic into a H/W column?
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[http://sugarlabs.org Sugar], the unique user interface of the XO laptops, is also distributed as a generic software project and can be developed and tested on "regular" computers as well as XOs. See [http://wiki.sugarlabs.org/go/Downloads Sugar Labs Downloads] for the full range of options, such as [http://wiki.sugarlabs.org/go/Sugar_on_a_Stick Sugar on a Stick].
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For emulation of extremely old builds, you may be able to come across "ext3 images" on some corners of http://download.laptop.org and http://xs-dev.laptop.org/~cscott/olpc/streams/ which can be loaded into emulators. You are unlikely to find support for them!
[[Category:OS]]
[[Category:OS]]

Current revision as of 16:26, 30 July 2013

  english | español日本語한국어portuguêsрусский HowTo [ID# 290021]  +/-  
Emulation
modify 

In the past, OLPC produced alternative software images which could be run in emulators such as QEMU and VMware. This meant that development and testing could happen to a limited extent without requiring an XO laptop.

In 2013, please see Tom Gilliard's many virtual machine images ready-to-go.

Note, XOs are readily available to genuine volunteer contributors through the Contributors program.

Sugar, the unique user interface of the XO laptops, is also distributed as a generic software project and can be developed and tested on "regular" computers as well as XOs. See Sugar Labs Downloads for the full range of options, such as Sugar on a Stick.

For emulation of extremely old builds, you may be able to come across "ext3 images" on some corners of http://download.laptop.org and http://xs-dev.laptop.org/~cscott/olpc/streams/ which can be loaded into emulators. You are unlikely to find support for them!

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