Installing Jessie in Model B+ and using it in RPi 2

[juranga]

I have a SD card that I just installed Jessie in it using a Raspberry Pi Model B+. I am going to buy the Raspberry Pi 2 that I will use in my projects so I do not know if I have to install Jessie OS again because the new model it has 4 cores and I do not know if I could lost performance or not. Does it matter this??

Many thanks for your help!

[fruitoftheloom]

I have a SD card that I just installed Jessie in it using a Raspberry Pi Model B+. I am going to buy the Raspberry Pi 2 that I will use in my projects so I do not know if I have to install Jessie OS again because the new model it has 4 cores and I do not know if I could lost performance or not. Does it matter this??

Many thanks for your help!

Raspbian Jessie will work in all models, it loads the applicable Kernel for the RPi model.

[hansotten]

I have a SD card that I just installed Jessie in it using a Raspberry Pi Model B+. I am going to buy the Raspberry Pi 2 that I will use in my projects so I do not know if I have to install Jessie OS again because the new model it has 4 cores and I do not know if I could lost performance or not. Does it matter this??

Many thanks for your help!

No worry, it does not matter, you can swap between B+ and Pi 2 without issues and no manual actions required.

Under the hood: Raspbian has two kernels, kernel.img and kernel7.img and the relevant kernel is loaded automatically at boot, no user actions involved. The kernel7 for the RPI 2 makes the four cores available.

[juranga]

Many thanks for your answers!

It has been very useful!!