Rooting Archos 79 Cobalt
The ARCHOS 79 COBALT is the same internally as the ARCHOS 70b COBALT.
Both use a RT3026 chip and the only difference being the size of the battery and screen, other than this they are identical.
There is very little information listed on the forums for rooting these model tablets, and Archos theirselves are yet to list firmware on their support website.
As for recovery optiond i cannot seem to get these tablets to load a recovery. An Android picture/logo loads but no options or text is displayed. I have heard some of the older Archos tablets needed a recovery installing also.
If i can find a successful root method i will be able to research these models more. So far i am yet to find a way to get SuperUser on, but my knowledge is limited so i would not know the options available to me. I have tried a program called SuperOneClick which successfully rooted android devices for me before bu it seems to do nothing on starting the ADB service but i don't fully understand what it actually is doing at this point or whether it requires time. I waited 2 minutes and quit the program.