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I tried upgrading multiple times , tried removing dependecies and also tried removing old kernels but it keeps on crashing saying no space in disk. I keep checking it says I have 1.1 GB free but it keeps crashing I can mount more than 1 drive now and it keeps adding more and more problems.

The following packages have unmet dependencies:

linux-headers-generic-pae: Depends: linux-headers-3.2.0-56-generic-pae but it is not installed

How to solve this issue ?

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What is the output of sudo apt-get check? – Braiam Nov 25 '13 at 11:49

Try with following command:

sudo apt-get install --fix-broken && sudo apt-get autoremove && sudo apt-get update 

Then update again.

If it is doesn't succeed then follow this answer.

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