Clone SD Card in Rev.1 Pi for use in Rev.2 Pi
Does anyone know if an SD card from an up-to-date Rev.1 Pi can be used in a Rev.2 Pi? I would like to avoid all the configuration and just clone and go. Thanks for your help.
Re: Clone SD Card in Rev.1 Pi for use in Rev.2 Pi
Shouldn't be a problem as long as it's updated with the latest firmware
Re: Clone SD Card in Rev.1 Pi for use in Rev.2 Pi
Great! Thanks.
Re: Clone SD Card in Rev.1 Pi for use in Rev.2 Pi
Well, I've done this and booted successfully, but how do I update the Pi software so that it realizes it's on a Rev.2 board? "cat /proc/cpuinfo" shows the wrong revision, and wiringPi's "GPIO readall" does as well, meaning, I'd assume, that it will interpret GPIO pins incorrectly.
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DougieLawson
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Re: Clone SD Card in Rev.1 Pi for use in Rev.2 Pi
/proc/cpuinfo is part of a special filesystem that gets created automagically by the firmware. If it's wrong that's because your firmware is too old for the Rev.2 board.sipp wrote:Well, I've done this and booted successfully, but how do I update the Pi software so that it realizes it's on a Rev.2 board? "cat /proc/cpuinfo" shows the wrong revision, and wiringPi's "GPIO readall" does as well, meaning, I'd assume, that it will interpret GPIO pins incorrectly.
Try
sudo apt-get update && sudo apt-get dist-upgrade && sudo apt-get install rpi-update && sudo rpi-update && sudo shutdown -r now
to update to 3.10.18+
Note: the very latest firmware breaks spidev, but that will be fixed soon. If you need to use SPI go with
sudo rpi-update 8234d5148aded657760e9ecd622f324d140ae891
to stick with 3.6.11+
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Any DMs sent on Twitter will be answered next month.
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Re: Clone SD Card in Rev.1 Pi for use in Rev.2 Pi
Worked perfectly! Many thanks for the quick, precise reply. Didn't think of the Pi as having firmware, but it's more like a smartphone than a PC of course. The analogous part in the PC would be maybe the BIOS?
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W. H. Heydt
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Re: Clone SD Card in Rev.1 Pi for use in Rev.2 Pi
Sort of... The difference being that BIOS (or UEFI) code is stored in non-volatile memory on the PCs motherboard, where the Pis firmware is a file in the FAT partition of the SD card.sipp wrote:Worked perfectly! Many thanks for the quick, precise reply. Didn't think of the Pi as having firmware, but it's more like a smartphone than a PC of course. The analogous part in the PC would be maybe the BIOS?
The advantage is that updating the Pis firmware is much easier and far less risky than updating (flashing) the BIOS on a PC.