Removing a package AND dependant packages

I'm remastering a Knoppix installation. This PC won't boot a Knoppix CD. Only the DVD. And because I'd like to get it under, say, 300 MB, this will make it more difficult.

I'm in the APT stage of this FAQ. I want to remove all packages I don't need. And there are a LOT of those. For example, I don't need anything related to X/X11/Xorg/KDE/you-know-what-I-mean. I read there that

Code:

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apt-get remove --purge the-package

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will delete that package AND all packages dependant on it. However, when I try to remove xorg or kde-core this way, no packages other than just the one are deleted. (Or so sais the confirmation message.)

I certainly hope I'm not supposed to delete 4 GB of packages individually. :shock:

Could someone please help me out with this?

Thanks!