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Difference between revisions of "Reporting unknown MD5 checksums"
Reporting unknown MD5 checksums (view source)
Revision as of 21:34, 23 June 2008
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* The easiest way would be to check the ScummVM console window, which will report the unknown MD5s you got. If you can't see the console window, you can redirect ScummVM's output to a text file, by running ScummVM as follows: | * The easiest way would be to check the ScummVM console window, which will report the unknown MD5s you got. If you can't see the console window, you can redirect ScummVM's output to a text file, by running ScummVM as follows: | ||
scummvm > file.txt | scummvm > file.txt | ||
* If for some reason you can | * If for some reason you can not see ScummVM's window or do not get any output in the text file, you need to follow an a bit harder process. The MD5-based detection in ScummVM uses the first bytes of each file to determine its MD5 checksum. This is necessary to speed up the detection process and to avoid having to calculate the MD5 checksums of large files, which would make game detection very slow. | ||
Each engine in ScummVM uses a different number of bytes to calculate their MD5 checksums. | Each engine in ScummVM uses a different number of bytes to calculate their MD5 checksums. | ||
Number of bytes in each engine, to compute an MD5 hash:<br> | Number of bytes in each engine, to compute an MD5 hash:<br /> | ||
''AGI, AGOS, Cine, | ''[[AGI]], [[AGOS]], [[Cine]], [[CruisE]], [[Drascula]], [[Gob]], [[Parallaction]], [[SAGA]]'' - '''5000''' bytes<br /> | ||
''Igor, Lure'' - '''1024''' bytes<br> | ''[[Igor]], [[Lure]]'' - '''1024''' bytes<br /> | ||
''Kyra, | ''[[Kyra]], [[SCUMM]]'' - '''1024 * 1024''' bytes<br /> | ||
''Touche'' - '''4096''' bytes<br> | ''[[Touche]]'' - '''4096''' bytes<br /> | ||
[[Queen]], [[Sky]], [[Sword1]], [[Sword2]] use a different detection. | |||
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md5deep -p size file | find /i "offset 0-size" | md5deep -p size file | find /i "offset 0-size" | ||
Where ''size'' depends | Where ''size'' depends on the engine, as described above. | ||
Alternatively, you can download the [http://gnuwin32.sourceforge.net/packages/coreutils.htm gnuwin32 coreutils] and run the *nix command above. You | Alternatively, you can download the [http://gnuwin32.sourceforge.net/packages/coreutils.htm gnuwin32 coreutils] and run the *nix command above. You will need head.exe, md5sum.exe and the two libraries from the dependency package. | ||
After you get the MD5 sums of the game files, you can report them by using our | After you get the MD5 sums of the game files, you can report them by using our [http://sourceforge.net/tracker/?group_id=37116&atid=418820 bug tracker]. It is much preferred over a post in the forums. | ||