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I want to do this because I'm trying to fix user permissions from Ubuntu on my Mac OS X partition and Ubuntu doesn't have the "wheel" group that I so desperately need!

Please don't trash me for this but I set my whole Mac OS X partition to give read and write access to everyone so I could access and modify everything on it from my dual-booting Ubuntu OS, and now everything is screwed...

I don't have the original Mac OS X installation DVD and booting a Mac OS X 10.5.6 DVD gives me kernel panics... The OS installed on that Mac partition is 10.4.11.

Is there any hope for me to ever fix it?

I don't have money to buy utilities, and I can't use AppleJack either because my permissions are so messed up...

None of the posted answers are what I wanted to do. I wanted to add fields to a user that was on my Mac partition, not a user part of the Ubuntu groups. Is that possible?

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3 Answers 3

I'm not sure about what you're trying to accomplish here (big picture), but here's how to add groups.

$ sudo addgroup mygroupname

However, system groups like sudo, adm and wheel have a low number group id. Do this for your group wheel:

$ sudo addgroup --system wheel

You should also be able to accomplish this using the GUI ('Users and Groups').

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OR you can use advance user settings graphical application.

sudo apt-get install gnome-system-tools

enter image description here

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None of these are what I wanted to do. I wanted to add fiels to a user that was on my Mac partition, not a user part of the Ubuntu groups. Is that possible?

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1  
Please edit your existing question to make what you want clearer. –  Jorge Castro Sep 18 '12 at 15:53

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