Trouble Installing Old Mods

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Flexico

Well-Known Member
Dec 15, 2012
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I'm trying to install some mods for old versions of MC using the new launcher. I had previously been using them from an old install of the original beta launcher, but now that I'm moving to using Linux the old Windows launcher doesn't work for me.

I follow the instructions I've found from several places, including copying/renaming the *.json file, but every time I run MC after installing the core mods to the *.jar, MC just re-downloads a fresh copy of the *.jar and replaces my re-named modded version. What am I doing wrong?

I also followed the instructions here for the Deep Space Turtle Chase map,with the same results.