[Feature Request] Booting from SD cards

fg42o15a702dc

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Jan 5, 2026
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I would love to have a ability too boot from SD. Not fully on the SD card it self but just the bootloader.
Why? Because install Linux and Windows together will mess up the boot loader, so I would like the SD card to be a "key" to switch to other OS.
SD inserted -> Linux
SD remove -> Windows
It will be nice this way as handheld are generally hard to put a USB into and keep it stable.
Mini ssd handhelds from China are also bootable but I won't need a full SSD for bootloader anyway.
 
The transfer speed of the SD card is only up to 312 MB/s, which is really slow to boot up...
 
This is not entirely true. I use dual boot since many years and NEVER had a problem.
Which Distribution do you use?
Just Arch.
But I do break both my Windows and Linux and have to reinstall all the time.
Hence this feature request. Just asking to make SD bootable.
 
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