Raspberry pi b3+ hat to add a 2dary SD Card

Anyone skilled with gerbering is able to built a Rasberry pi b3+ hat to add a secondary sd card where you can put all your roms of games inside it? Whithout removeing the Operating System SD !?

Thanks for reading

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toolkitman over 6 years ago

i havent stated a requirements i have speak about adding space but i dont see all this problems.
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toolkitman over 6 years ago in reply to toolkitman

outside of the topic i have a question to the design owner, is it possible to boot the os from the hat and use the sd slot of raspberry pi as additional space support? Thanks
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toolkitman over 6 years ago in reply to toolkitman

outside of the topic i have a question to the design owner, is it possible to boot the os from the hat and use the sd slot of raspberry pi as additional space support? Thanks
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balearicdynamics over 6 years ago in reply to toolkitman

Hi Matteo, yes, at least on the models after the PI3B (the last two most recent).

There are two different approaches, one that can be managed on all the devices, where the kernel boot from the main SD card but then the entire filesystem is moved to external support. This is useful for example if you need a large or more stable filesystem (and need to reduce the number of accesses to the SD card too), with the FileSystem, for example, running on an SSD connected vias SATA to USB.

In a more drastic solution instead, I have never experimented from a secondary SD but from an SSD disk just using a boot flag set up. At this moment I have no access to the documentation I wrote a couple of years ago but I have applied it with success.

Maybe useful if you look at the following thread where I participated: boot from ssd in pi desktop

This is the original post I referred above. Read it and try it carefully https://www.raspberrypi.org/documentation/hardware/raspberrypi/bootmodes/msd.md

If I have done a video... a method should be! https://youtu.be/IGAkYd1W4X4
Here is the same video published on E14. This means that somewhere there is the post embedding this video: Booting PI B3 from 120Gb SSD

Enrico
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toolkitman over 6 years ago in reply to balearicdynamics

I have a redisigned case to fit Raspberry and mmc Hat have a look!
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