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When I open the minecraft.jar file with p7zip on Linux, I can't delete the META-INF folder.

This is the error:

Error: /home/davide/.minecraft/bin/minecraft.jar is not supported archive

System error: Operation not permitted  

What can I do?

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migrated from Aug 20 '11 at 12:32

This question came from our site for passionate videogamers on all platforms.

p7zip couldn't open it for me even after renaming it to zip (said "unknown suffix").

My system's default archive manager is file-roller, it opened the .jar witout any problems an I could delete the folder.

unzip could also handle it, but you need to recompress manually after.

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