Is it possible to have two operating systems on a SD card with provision to select the OS at bootup (e.g Grub), or selecting OS for next bootup at shutdown ?

Rein.

On 8/4/2020 at 6:09 AM, Rein said:

Is it possible

Anything is possible, but this is Armbian support forum, section Allwinner A20, support for a few boards that or the list. Your problem is off topic, moving to general section. U-boot could provide something like that, yes, but you can also look towards https://github.com/open-power/petitboot direction. Its on you to do the research, make a POC, develop and maintain this feature ...

On 8/4/2020 at 6:09 AM, Rein said:

two operating

apart from Igors suggestion, you can search the forum. You r not the first with such a wish

 

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