Without seeing the errors and knowing your setup it is difficult to say. If Mint is anything like Ubuntu then you may need to enable additional repositories. In Ubuntu they are called universe and you may possibly even need to enable multiverse.

You may also encounter errors related to packages that are not signed or repositories that are not signed. Assuming that you're using default repositories this typically should not be a problem but again I don't know what your situation is because I don't have enough information to say one way or the other.

Hope this helps!

On Nov 26, 2013 4:02 PM, "t'es in t'es bat" <tesintesbat@gmail.com> wrote:
hello
i'd just check and i find all the packages in synaptic
but if i try to select for install i got a message saying package not certified, risk of attack from bad people or something.
If i ckeck for install the package become red and i got a broken package message...
It seem to be a problem with my system ?
Impossible to get the mesa-dev or quicktime-dev package...
so what can i do ?

thanks

TNTB
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2013/11/26 Ivica Bukvic <ico@vt.edu>

Ugh, just read the rest of your message. I guess we need to investigate what are the exact package names for Mint and rebuild the package to for Mint format? Can you list what packages are missing and what are the closest package names you have in synaptic? Thanks!