I'd like to move to the new raspberry pi because I need more performance. The current sd card I used on pi 2, ane now pi 3, and I'd like to ask if anyone tried running his pi 3 raspbian on pi 4 by just transferring the sd card. Pi 4 supports 64 bit, so I'm wondering whether there would be surprises.

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    Which operating system is on the sd card? – CoderMike Dec 22 '19 at 21:56
  • Pi 4 supports 64 bit technically the pi 3 (and second release of pi 2) are 64 bit capable chips – Jaromanda X Dec 22 '19 at 23:32

Raspbian Stretch or earlier will not run on the Rpi4; a card containing Buster should work on all models.

Buster - the new version of Raspbian

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    what makes you think OP is using Jessie? Seems an odd assumption (since the most recent previous version was stretch) – Jaromanda X Dec 22 '19 at 23:30

The sd card could only just be transferred to the Pi4 if it had Raspbian Buster on it.

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You will need to upgrade the operating system system to Buster before you will be able to boot it on a pi4. if you have a working pi3 this is not all that difficult.

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  • Have you ever tried to full-upgade a Raspbian version? Does it work for you without difficulties? The recommendation of the Raspberry Pi Foundation is to start with a new version from its image. – Ingo Dec 23 '19 at 11:30
  • Much as I admire (and participate in) Stack Exchange, I have to say that many Raspberry Pi questions on here have already been very comprehensively answered on the Rasperry Pi official forum. – Michael Harvey Dec 23 '19 at 17:50
  • I done it on debian many times, it usually works. 98% success rate. Raspbian should be similar, – Jasen Dec 23 '19 at 18:26

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