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Why do I need to delete the META-INF folder when installing mods?
What do I do if I don't have a META-INF folder or minecraft.jar?When using graphics mods such as OptiFine, do I need to patch server or only client?Minecraft Corrupt Jar After Deleting Meta-infCan't delete Minecraft filesMinecraft META-INF FileHow do you uninstall Modloader for Minecraft?Why does META-INF keep coming back?I can't seem to get mods workingHelp with installing Minecraft Mods on a MacMinecraft CorruptInstalling Minecraft mod on Mac OS X
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In Minecraft, nearly every tutorial on how to install a MOD tells you to remove the META-INF folder. However none of the ones I found tell you what it is. I don't like the idea of deleting a folder without knowing what it is or what it does.
So what is the META-INF folder, and why should I delete it?
minecraft minecraft-mods
edited 42 mins ago
pppery
4664 silver badges13 bronze badges
asked Jul 31 '11 at 12:02
Wipqozn♦Wipqozn
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add a comment |
In Minecraft, nearly every tutorial on how to install a MOD tells you to remove the META-INF folder. However none of the ones I found tell you what it is. I don't like the idea of deleting a folder without knowing what it is or what it does.
So what is the META-INF folder, and why should I delete it?
minecraft minecraft-mods
edited 42 mins ago
pppery
4664 silver badges13 bronze badges
asked Jul 31 '11 at 12:02
Wipqozn♦Wipqozn
31.5k62 gold badges199 silver badges336 bronze badges
add a comment |
In Minecraft, nearly every tutorial on how to install a MOD tells you to remove the META-INF folder. However none of the ones I found tell you what it is. I don't like the idea of deleting a folder without knowing what it is or what it does.
So what is the META-INF folder, and why should I delete it?
minecraft minecraft-mods
edited 42 mins ago
pppery
4664 silver badges13 bronze badges
asked Jul 31 '11 at 12:02
Wipqozn♦Wipqozn
31.5k62 gold badges199 silver badges336 bronze badges
In Minecraft, nearly every tutorial on how to install a MOD tells you to remove the META-INF folder. However none of the ones I found tell you what it is. I don't like the idea of deleting a folder without knowing what it is or what it does.
So what is the META-INF folder, and why should I delete it?
minecraft minecraft-mods
minecraft minecraft-mods
edited 42 mins ago
pppery
4664 silver badges13 bronze badges
asked Jul 31 '11 at 12:02
Wipqozn♦Wipqozn
31.5k62 gold badges199 silver badges336 bronze badges
edited 42 mins ago
pppery
4664 silver badges13 bronze badges
asked Jul 31 '11 at 12:02
Wipqozn♦Wipqozn
31.5k62 gold badges199 silver badges336 bronze badges
edited 42 mins ago
pppery
4664 silver badges13 bronze badges
edited 42 mins ago
pppery
4664 silver badges13 bronze badges
edited 42 mins ago
pppery
4664 silver badges13 bronze badges
4664 silver badges13 bronze badges
asked Jul 31 '11 at 12:02
Wipqozn♦Wipqozn
31.5k62 gold badges199 silver badges336 bronze badges
asked Jul 31 '11 at 12:02
Wipqozn♦Wipqozn
31.5k62 gold badges199 silver badges336 bronze badges
asked Jul 31 '11 at 12:02
Wipqozn♦Wipqozn
31.5k62 gold badges199 silver badges336 bronze badges
31.5k62 gold badges199 silver badges336 bronze badges
add a comment |
add a comment |
1 Answer
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Because Minecraft is digitally signed. META-INF contains a signature file (.SF) that accounts for all the files within the JAR and their checksums, and Mojang's actual signature (.RSA).
When that signature checks out, you know it wasn't tampered with and comes from the source that signed it (in this case, Mojang). When you do tamper with it by installing mods, the signature becomes invalid and Minecraft won't start at all.
By deleting the META-INF directory, you remove the signature completely. Depending on your security settings, you might get an "unknown publisher" warning, but you'll be able to run it.
More detailed info: JAR File Specification
answered Jul 31 '11 at 13:49
a cata cat
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2
Ah, one of those other properties, the big one.
– Jeff Mercado
Jul 31 '11 at 18:51
Better copy it from there,instead of deleting.
– John
Jul 27 '15 at 8:30
add a comment |
protected by Community♦ Apr 28 '12 at 21:28
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Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Because Minecraft is digitally signed. META-INF contains a signature file (.SF) that accounts for all the files within the JAR and their checksums, and Mojang's actual signature (.RSA).
When that signature checks out, you know it wasn't tampered with and comes from the source that signed it (in this case, Mojang). When you do tamper with it by installing mods, the signature becomes invalid and Minecraft won't start at all.
By deleting the META-INF directory, you remove the signature completely. Depending on your security settings, you might get an "unknown publisher" warning, but you'll be able to run it.
More detailed info: JAR File Specification
answered Jul 31 '11 at 13:49
a cata cat
22.1k25 gold badges141 silver badges182 bronze badges
2
Ah, one of those other properties, the big one.
– Jeff Mercado
Jul 31 '11 at 18:51
Better copy it from there,instead of deleting.
– John
Jul 27 '15 at 8:30
add a comment |
Because Minecraft is digitally signed. META-INF contains a signature file (.SF) that accounts for all the files within the JAR and their checksums, and Mojang's actual signature (.RSA).
When that signature checks out, you know it wasn't tampered with and comes from the source that signed it (in this case, Mojang). When you do tamper with it by installing mods, the signature becomes invalid and Minecraft won't start at all.
By deleting the META-INF directory, you remove the signature completely. Depending on your security settings, you might get an "unknown publisher" warning, but you'll be able to run it.
More detailed info: JAR File Specification
answered Jul 31 '11 at 13:49
a cata cat
22.1k25 gold badges141 silver badges182 bronze badges
2
Ah, one of those other properties, the big one.
– Jeff Mercado
Jul 31 '11 at 18:51
Better copy it from there,instead of deleting.
– John
Jul 27 '15 at 8:30
add a comment |
Because Minecraft is digitally signed. META-INF contains a signature file (.SF) that accounts for all the files within the JAR and their checksums, and Mojang's actual signature (.RSA).
When that signature checks out, you know it wasn't tampered with and comes from the source that signed it (in this case, Mojang). When you do tamper with it by installing mods, the signature becomes invalid and Minecraft won't start at all.
By deleting the META-INF directory, you remove the signature completely. Depending on your security settings, you might get an "unknown publisher" warning, but you'll be able to run it.
More detailed info: JAR File Specification
answered Jul 31 '11 at 13:49
a cata cat
22.1k25 gold badges141 silver badges182 bronze badges
Because Minecraft is digitally signed. META-INF contains a signature file (.SF) that accounts for all the files within the JAR and their checksums, and Mojang's actual signature (.RSA).
When that signature checks out, you know it wasn't tampered with and comes from the source that signed it (in this case, Mojang). When you do tamper with it by installing mods, the signature becomes invalid and Minecraft won't start at all.
By deleting the META-INF directory, you remove the signature completely. Depending on your security settings, you might get an "unknown publisher" warning, but you'll be able to run it.
More detailed info: JAR File Specification
answered Jul 31 '11 at 13:49
a cata cat
22.1k25 gold badges141 silver badges182 bronze badges
edited Jul 27 '15 at 13:03
answered Jul 31 '11 at 13:49
a cata cat
22.1k25 gold badges141 silver badges182 bronze badges
answered Jul 31 '11 at 13:49
a cata cat
22.1k25 gold badges141 silver badges182 bronze badges
answered Jul 31 '11 at 13:49
a cata cat
22.1k25 gold badges141 silver badges182 bronze badges
22.1k25 gold badges141 silver badges182 bronze badges
2
Ah, one of those other properties, the big one.
– Jeff Mercado
Jul 31 '11 at 18:51
Better copy it from there,instead of deleting.
– John
Jul 27 '15 at 8:30
add a comment |
2
Ah, one of those other properties, the big one.
– Jeff Mercado
Jul 31 '11 at 18:51
Better copy it from there,instead of deleting.
– John
Jul 27 '15 at 8:30
2
2
Ah, one of those other properties, the big one.
– Jeff Mercado
Jul 31 '11 at 18:51
Ah, one of those other properties, the big one.
– Jeff Mercado
Jul 31 '11 at 18:51
Better copy it from there,instead of deleting.
– John
Jul 27 '15 at 8:30
Better copy it from there,instead of deleting.
– John
Jul 27 '15 at 8:30
add a comment |
protected by Community♦ Apr 28 '12 at 21:28
Thank you for your interest in this question.
Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).
Would you like to answer one of these unanswered questions instead?
