G+_William Burlingame Posted March 24, 2018 Share Posted March 24, 2018 If I upgrade a project from a Raspberry Pi 2 to a Raspberry Pi 3 B+, should I be able to remove the SD card from the RPi2 and use it in the RPi 3 B+ without rebuilding the card? Link to comment Share on other sites More sharing options...
G+_David Peach Posted March 24, 2018 Share Posted March 24, 2018 Yes. Nothing should break. However, I would suspect it may affect the max speed of everything. Depending on the project it may not matter for you. I've done that on projects where speed wasn't a factor and I just wanted some hardware features. I went from a Pi A to a Pi B+ to get ethernet. You're going from one quad core pi to another one. Should not be a problem. But (and this is only a wild suspicion on my part, I have no real knowledge) you may sacrifice a small bit of speed. Then I wonder if a dist-upgrade might put everything right again. You can be our guinea pig. Clone the SD card. Run it in the new pi. Measure stuff. Then do a fresh install and see if you notice any difference. Of course, after all that then you saved nothing. ? Link to comment Share on other sites More sharing options...
G+_William Burlingame Posted March 24, 2018 Author Share Posted March 24, 2018 David, thanks for the response. My project is a NAS (JBOD). I'm not fluent in Linux and it was a pain for me to set up the files for the RPi to use my NTFS disks. I did a dist-upgrade (jessie to stretch) on another RPi, but I thought I would hold off on this one just in case it included some HW specific upgrades. I may forgo the benchmarks. My new board from Adafruit should be here Thurs. Link to comment Share on other sites More sharing options...
G+_Ben Tyger Posted March 24, 2018 Share Posted March 24, 2018 William Burlingame I would make sure you have the latest RPi kernel first before moving. With many new RPis, the SoC changes enough that the old kernel that was used on the previous version may not support on that newer Rpi. Especially with 3B+ because we know it has a new NIC controller. Link to comment Share on other sites More sharing options...
G+_David Peach Posted March 26, 2018 Share Posted March 26, 2018 William Burlingame, with Ben Tyger's suggestion of upgrading the kernel first, I would still recommend imaging the SD card before doing anything else (now that this is 3 or 4 days later, it may not matter). That way you can at least roll back to where you were on the old Pi if something doesn't work right for you. Link to comment Share on other sites More sharing options...
G+_William Burlingame Posted March 29, 2018 Author Share Posted March 29, 2018 I decided not to use the RPi 3 B+, but use a Rock64 instead. I had to go through the setup again and it works. It took 1442 seconds to transfer a 15.2 GB file to my desktop on the RPi 2 and 234 seconds with the ROCK 64. I also have Pi-Hole installed on the same ROCK64. Link to comment Share on other sites More sharing options...
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