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I installed my updates/grade today for 12.4 and have been unable to make a successful reboot since. I have had to log on going back to previous upgrade points. Do I now have to wait for another update/upgrade for this to be fixed?

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marked as duplicate by guntbert, BuZZ-dEE, Warren Hill, precise, terdon Mar 19 '14 at 0:34

This question was marked as an exact duplicate of an existing question.

Please add error messages or some stuff to diagnose your problem. – Danatela Mar 8 '14 at 14:40
No error messages just not booting up on the updated version when restarted. Black screen. – Seven Mar 8 '14 at 14:41

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