Minecraft Forums

A couple of my kids have shown an interest in Minecraft so I thought I'd evaluate the game by downloading the demo version onto my computer. I was able to get it to run but I get the following message

Starting launcher.
[10:38:34 INFO]: Refreshing local version list...
[10:38:34 INFO]: Minecraft Launcher 1.3.11 (through bootstrap 5) started on unknown...
[10:38:34 INFO]: Current time is Apr 19, 2014 10:38:34 AM
[10:38:34 FATAL]: This operating system is unknown or unsupported, we cannot guarantee that the game will launch successfully.
[10:38:34 INFO]: System.getProperty('os.name') == 'OpenBSD'
[10:38:34 INFO]: System.getProperty('os.version') == '5.5'
[10:38:34 INFO]: System.getProperty('os.arch') == 'amd64'
[10:38:34 INFO]: System.getProperty('java.version') == '1.7.0_21'
[10:38:34 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[10:38:34 INFO]: System.getProperty('sun.arch.data.model') == '64'
[10:38:34 INFO]: Refreshing remote version list...
[10:38:35 INFO]: Refresh complete.
[10:38:35 INFO]: Loaded 1 profile(s); selected '(Default)'
[10:38:35 INFO]: Refreshing auth...
[10:38:35 INFO]: Logging in with access token

and then the login fails with the following message.

[10:39:07 INFO]: Client> Exception in thread "main" java.lang.LinkageError: Unknown platform: OpenBSD
[10:39:07 INFO]: Client> at org.lwjgl.LWJGLUtil.(LWJGLUtil.java:280)
[10:39:07 INFO]: Client> at org.lwjgl.Sys.createImplementation(Sys.java:124)
[10:39:07 INFO]: Client> at org.lwjgl.Sys.(Sys.java:111)
[10:39:07 INFO]: Client> at ban.K(SourceFile:2173)
[10:39:07 INFO]: Client> at net.minecraft.client.main.Main.main(SourceFile:72)

So, obviously OpenBSD is not officially supported. Further evidence of this situation can be found in ~/minecraft/versions/1.7.9/1.7.9.json with the following and similar such lines.

 75 "name": "org.lwjgl.lwjgl:lwjgl-platform:2.9.1",
76 "natives": {
77 "linux": "natives-linux",
78 "windows": "natives-windows",
79 "osx": "natives-osx"
80 },

In summary, is it possible to run the demo or the full client on any other platform but some version of Windows, Mac OSX or Linux? Keep in mind, I'd like to evalulate the game before I decide to buy either for my workstation or for my Android phone.

Thanks.

I got the same problem. Here's my log and game output:

Log:

[13:37:16 INFO]: Minecraft Launcher 1.5.3 (through bootstrap 5) started on unknown...
[13:37:16 INFO]: Current time is Nov 19, 2014 1:37:16 PM
[13:37:16 FATAL]: This operating system is unknown or unsupported, we cannot guarantee that the game will launch successfully.
[13:37:16 INFO]: System.getProperty('os.name') == 'OS X'
[13:37:16 INFO]: System.getProperty('os.version') == '10.6.8'
[13:37:16 INFO]: System.getProperty('os.arch') == 'x86_64'
[13:37:16 INFO]: System.getProperty('java.version') == '1.6.0_65'
[13:37:16 INFO]: System.getProperty('java.vendor') == 'Apple Inc.'
[13:37:16 INFO]: System.getProperty('sun.arch.data.model') == '64'
[13:37:17 INFO]: Refreshing local version list...
[13:37:17 INFO]: Refreshing remote version list...
[13:37:18 INFO]: Refresh complete.
[13:37:18 INFO]: Loaded 1 profile(s); selected 'SkyKraft09'
[13:37:18 INFO]: Refreshing auth...
[13:37:18 INFO]: Logging in with access token
[13:37:25 INFO]: Getting syncinfo for selected version
[13:37:25 INFO]: Queueing library & version downloads
[13:37:25 INFO]: Download job 'Version & Libraries' started (16 threads, 29 files)
[13:37:25 INFO]: Attempting to download /Users/logan/minecraft/libraries/commons-codec/commons-codec/1.9/commons-codec-1.9.jar for job 'Version & Libraries'... (try 0)
[13:37:25 INFO]: Attempting to download /Users/logan/minecraft/libraries/net/sf/jopt-simple/jopt-simple/4.6/jopt-simple-4.6.jar for job 'Version & Libraries'... (try 0)
[13:37:25 INFO]: Attempting to download /Users/logan/minecraft/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar for job 'Version & Libraries'... (try 0)
[13:37:25 INFO]: Attempting to download /Users/logan/minecraft/libraries/org/apache/logging/log4j/log4j-core/2.0-beta9/log4j-core-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[13:37:25 INFO]: Attempting to download /Users/logan/minecraft/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar for job 'Version & Libraries'... (try 0)
[13:37:25 INFO]: Attempting to download /Users/logan/minecraft/libraries/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar for job 'Version & Libraries'... (try 0)
[13:37:25 INFO]: Attempting to download /Users/logan/minecraft/libraries/org/apache/commons/commons-compress/1.8.1/commons-compress-1.8.1.jar for job 'Version & Libraries'... (try 0)
[13:37:25 INFO]: Attempting to download /Users/logan/minecraft/libraries/java3d/vecmath/1.5.2/vecmath-1.5.2.jar for job 'Version & Libraries'... (try 0)
[13:37:25 INFO]: Attempting to download /Users/logan/minecraft/libraries/com/mojang/realms/1.6.1/realms-1.6.1.jar for job 'Version & Libraries'... (try 0)
[13:37:25 INFO]: Attempting to download /Users/logan/minecraft/libraries/com/mojang/authlib/1.5.17/authlib-1.5.17.jar for job 'Version & Libraries'... (try 0)
[13:37:25 INFO]: Attempting to download /Users/logan/minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.1/lwjgl-2.9.1.jar for job 'Version & Libraries'... (try 0)
[13:37:25 INFO]: Attempting to download /Users/logan/minecraft/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar for job 'Version & Libraries'... (try 0)
[13:37:25 INFO]: Attempting to download /Users/logan/minecraft/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar for job 'Version & Libraries'... (try 0)
[13:37:25 INFO]: Attempting to download /Users/logan/minecraft/libraries/org/apache/httpcomponents/httpclient/4.3.3/httpclient-4.3.3.jar for job 'Version & Libraries'... (try 0)
[13:37:25 INFO]: Attempting to download /Users/logan/minecraft/libraries/tv/twitch/twitch/6.5/twitch-6.5.jar for job 'Version & Libraries'... (try 0)
[13:37:25 INFO]: Attempting to download /Users/logan/minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.1/lwjgl_util-2.9.1.jar for job 'Version & Libraries'... (try 0)
[13:37:31 INFO]: Download job 'Resources' skipped as there are no files to download
[13:37:31 INFO]: Job 'Resources' finished successfully (took 0:00:00.001)
[13:37:32 INFO]: Finished downloading /Users/logan/minecraft/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:32 INFO]: Attempting to download /Users/logan/minecraft/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar for job 'Version & Libraries'... (try 0)
[13:37:32 INFO]: Finished downloading /Users/logan/minecraft/libraries/com/mojang/realms/1.6.1/realms-1.6.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:32 INFO]: Attempting to download /Users/logan/minecraft/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar for job 'Version & Libraries'... (try 0)
[13:37:32 INFO]: Finished downloading /Users/logan/minecraft/libraries/net/sf/jopt-simple/jopt-simple/4.6/jopt-simple-4.6.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:32 INFO]: Attempting to download /Users/logan/minecraft/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar for job 'Version & Libraries'... (try 0)
[13:37:32 INFO]: Finished downloading /Users/logan/minecraft/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:32 INFO]: Attempting to download /Users/logan/minecraft/libraries/org/apache/commons/commons-lang3/3.3.2/commons-lang3-3.3.2.jar for job 'Version & Libraries'... (try 0)
[13:37:32 INFO]: Finished downloading /Users/logan/minecraft/libraries/commons-codec/commons-codec/1.9/commons-codec-1.9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:32 INFO]: Attempting to download /Users/logan/minecraft/libraries/net/sf/trove4j/trove4j/3.0.3/trove4j-3.0.3.jar for job 'Version & Libraries'... (try 0)
[13:37:32 INFO]: Finished downloading /Users/logan/minecraft/libraries/tv/twitch/twitch/6.5/twitch-6.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:32 INFO]: Attempting to download /Users/logan/minecraft/libraries/commons-logging/commons-logging/1.1.3/commons-logging-1.1.3.jar for job 'Version & Libraries'... (try 0)
[13:37:32 INFO]: Finished downloading /Users/logan/minecraft/libraries/com/mojang/authlib/1.5.17/authlib-1.5.17.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:32 INFO]: Attempting to download /Users/logan/minecraft/libraries/org/apache/httpcomponents/httpcore/4.3.2/httpcore-4.3.2.jar for job 'Version & Libraries'... (try 0)
[13:37:33 INFO]: Finished downloading /Users/logan/minecraft/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:33 INFO]: Attempting to download /Users/logan/minecraft/libraries/com/google/guava/guava/17.0/guava-17.0.jar for job 'Version & Libraries'... (try 0)
[13:37:33 INFO]: Finished downloading /Users/logan/minecraft/libraries/java3d/vecmath/1.5.2/vecmath-1.5.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:33 INFO]: Attempting to download /Users/logan/minecraft/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar for job 'Version & Libraries'... (try 0)
[13:37:33 INFO]: Finished downloading /Users/logan/minecraft/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:33 INFO]: Attempting to download /Users/logan/minecraft/libraries/io/netty/netty-all/4.0.15.Final/netty-all-4.0.15.Final.jar for job 'Version & Libraries'... (try 0)
[13:37:33 INFO]: Finished downloading /Users/logan/minecraft/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:33 INFO]: Attempting to download /Users/logan/minecraft/libraries/org/apache/logging/log4j/log4j-api/2.0-beta9/log4j-api-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[13:37:33 INFO]: Finished downloading /Users/logan/minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.1/lwjgl_util-2.9.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:33 INFO]: Attempting to download /Users/logan/minecraft/libraries/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.jar for job 'Version & Libraries'... (try 0)
[13:37:33 INFO]: Finished downloading /Users/logan/minecraft/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:33 INFO]: Attempting to download /Users/logan/minecraft/versions/1.8/1.8.jar for job 'Version & Libraries'... (try 0)
[13:37:33 INFO]: Finished downloading /Users/logan/minecraft/libraries/commons-logging/commons-logging/1.1.3/commons-logging-1.1.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:33 INFO]: Finished downloading /Users/logan/minecraft/libraries/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:33 INFO]: Finished downloading /Users/logan/minecraft/libraries/org/apache/commons/commons-compress/1.8.1/commons-compress-1.8.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:34 INFO]: Finished downloading /Users/logan/minecraft/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:34 INFO]: Finished downloading /Users/logan/minecraft/libraries/org/apache/logging/log4j/log4j-api/2.0-beta9/log4j-api-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:34 INFO]: Finished downloading /Users/logan/minecraft/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:34 INFO]: Finished downloading /Users/logan/minecraft/libraries/org/apache/commons/commons-lang3/3.3.2/commons-lang3-3.3.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:35 INFO]: Finished downloading /Users/logan/minecraft/libraries/org/apache/httpcomponents/httpcore/4.3.2/httpcore-4.3.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:35 INFO]: Finished downloading /Users/logan/minecraft/libraries/org/apache/httpcomponents/httpclient/4.3.3/httpclient-4.3.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:36 INFO]: Finished downloading /Users/logan/minecraft/libraries/io/netty/netty-all/4.0.15.Final/netty-all-4.0.15.Final.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:37 INFO]: Finished downloading /Users/logan/minecraft/libraries/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:37 INFO]: Finished downloading /Users/logan/minecraft/libraries/org/apache/logging/log4j/log4j-core/2.0-beta9/log4j-core-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:37 INFO]: Finished downloading /Users/logan/minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.1/lwjgl-2.9.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:38 INFO]: Finished downloading /Users/logan/minecraft/libraries/com/google/guava/guava/17.0/guava-17.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:38 INFO]: Finished downloading /Users/logan/minecraft/libraries/net/sf/trove4j/trove4j/3.0.3/trove4j-3.0.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[13:37:39 INFO]: Finished downloading /Users/logan/minecraft/versions/1.8/1.8.jar for job 'Version & Libraries': Used own copy as it matched etag
[13:37:39 INFO]: Job 'Version & Libraries' finished successfully (took 0:00:13.452)
[13:37:39 INFO]: Launching game
[13:37:39 INFO]: Unpacking natives to /Users/logan/minecraft/versions/1.8/1.8-natives-1416425859069555000
[13:37:39 INFO]: Launching in /Users/logan/minecraft
[13:37:39 INFO]: Half command: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M -Djava.library.path=/Users/logan/minecraft/versions/1.8/1.8-natives-1416425859069555000 -cp /Users/logan/minecraft/libraries/java3d/vecmath/1.5.2/vecmath-1.5.2.jar:/Users/logan/minecraft/libraries/net/sf/trove4j/trove4j/3.0.3/trove4j-3.0.3.jar:/Users/logan/minecraft/libraries/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.jar:/Users/logan/minecraft/libraries/net/sf/jopt-simple/jopt-simple/4.6/jopt-simple-4.6.jar:/Users/logan/minecraft/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar:/Users/logan/minecraft/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar:/Users/logan/minecraft/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar:/Users/logan/minecraft/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar:/Users/logan/minecraft/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar:/Users/logan/minecraft/libraries/io/netty/netty-all/4.0.15.Final/netty-all-4.0.15.Final.jar:/Users/logan/minecraft/libraries/com/google/guava/guava/17.0/guava-17.0.jar:/Users/logan/minecraft/libraries/org/apache/commons/commons-lang3/3.3.2/commons-lang3-3.3.2.jar:/Users/logan/minecraft/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar:/Users/logan/minecraft/libraries/commons-codec/commons-codec/1.9/commons-codec-1.9.jar:/Users/logan/minecraft/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar:/Users/logan/minecraft/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar:/Users/logan/minecraft/libraries/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar:/Users/logan/minecraft/libraries/com/mojang/authlib/1.5.17/authlib-1.5.17.jar:/Users/logan/minecraft/libraries/com/mojang/realms/1.6.1/realms-1.6.1.jar:/Users/logan/minecraft/libraries/org/apache/commons/commons-compress/1.8.1/commons-compress-1.8.1.jar:/Users/logan/minecraft/libraries/org/apache/httpcomponents/httpclient/4.3.3/httpclient-4.3.3.jar:/Users/logan/minecraft/libraries/commons-logging/commons-logging/1.1.3/commons-logging-1.1.3.jar:/Users/logan/minecraft/libraries/org/apache/httpcomponents/httpcore/4.3.2/httpcore-4.3.2.jar:/Users/logan/minecraft/libraries/org/apache/logging/log4j/log4j-api/2.0-beta9/log4j-api-2.0-beta9.jar:/Users/logan/minecraft/libraries/org/apache/logging/log4j/log4j-core/2.0-beta9/log4j-core-2.0-beta9.jar:/Users/logan/minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.1/lwjgl-2.9.1.jar:/Users/logan/minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.1/lwjgl_util-2.9.1.jar:/Users/logan/minecraft/libraries/tv/twitch/twitch/6.5/twitch-6.5.jar:/Users/logan/minecraft/versions/1.8/1.8.jar net.minecraft.client.main.Main
[13:37:39 INFO]: Looking for orphaned versions to clean up...
[13:37:39 INFO]: Looking for old natives & assets to clean up...
[13:38:06 ERROR]: Game ended with bad state (exit code 1)
[13:38:06 INFO]: Ignoring visibility rule and showing launcher due to a game crash
[13:38:06 INFO]: Deleting /Users/logan/minecraft/versions/1.8/1.8-natives-1416425859069555000

Game Output:

Exception in thread "main" java.lang.LinkageError: Unknown platform: OS X
at org.lwjgl.LWJGLUtil.<clinit>(LWJGLUtil.java:280)
at org.lwjgl.Sys.createImplementation(Sys.java:124)
at org.lwjgl.Sys.<clinit>(Sys.java:111)
at bsu.I(SourceFile:2462)
at net.minecraft.client.main.Main.main(SourceFile:40)


HOPE IT HELPED! Now, I have seen this and here's the problem. Your platform (OS) is not supported. You need a new platform like Mac OS X, Windows, or Linux.

-SkyKraft09:DSWORD: