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After I upgraded from 11.10 to 12.04 (I believe) I'm getting a black screen, however the system appears to start normally besides that.

I have seen the "duplicate" question at here however the answer there is not satisfying to my situation/system.

In the duplicate question the suggested solution is to remove fglrx. However, my system has an Nvidia 8600M graphics card in it. Hence removing a module that is not used would make no sense.

However, I'm in any case unable to even use apt-get remove, because I get the following error when I boot into recovery mode and attempt to use apt-get remove:

apt-get: error while loading shared libraries: libapt-pkg.so.4.12: cannot open shared object file: No such file or directory

I do not appear to have this file. When I search for similar files I only find:

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Have you seen this question? –  Seth Jan 27 '13 at 17:55
No, thanks. However it seems that my issue cannot be resolved just by adding nomodeset, it seems something went wrong with my upgrade. I remember I answered yes to some warnings about packages that were not installed correctly. I didn't really read them, assuming it was something normal with this upgrade. I guess the most easy solution is to just reinstall the OS. –  ioctlvoid Jan 27 '13 at 18:18
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