Booting / Dual Booting from SD

[mialemat]

Is it possibile installing a different O.S. on a SD?
Is it possibile booting from an O.S. installed on a SD card?Just like a powerful PC can we create a dual boot loader?
It would be wonderful making a choice to start from resident O.S. or from an installed O.S. in the SD.

Thanks in advance for your kind reply.

[Rudegar]

i doubt it
never heard about the bootloader being able to use the sdcard for anything but to take an image from and flash the rom with it

also sdcards are very very much slower then internal flash so it would mean a very very slow start if it was possible

[sp3dev]

well. actually i had such idea. the idea is to integrate sd drivers to xip, create imgfs and 2 fat partitions on sd and launch xip from xip. unfortunately, because of some strange bootloader behavior on my asus 525, i have not yet managed to start a xip from ram, it keeps falling to the one on DoC..))) but i think everything is possible. just you need to be very careful when migrating from flashdrv to sdmemory - it`s hard to set up the driver for os root correctly