I have just upgraded my processor to a 64-bit processor and I would like to update my Linux mint 17 to 64-bit. How to do it?
$ uname -a Linux kmcodes-home 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:31:42 UTC 2014 i686 athlon i686 GNU/Linux
I don't know about Mint, but I don't think many distributions support that kind of upgrade. Technically it shouldn't be impossible, but there are some pitfalls that will leave you with an unusable system.
It's probably easier to do a new install.