Thanks
So now I won’t be scared to flash images anymore.
For 2)
Basically I just want to avoid unnecessary steps to connect device to a PC and then also enter MaskROM Mode to change the OS on the EMMC.
Wanted to know if there is a way to do everything from Ubuntu/Linux running from a micro-sd card to access the whole emmc storage, erase it and flash Linux/Android to it.
But I think KRescue in development will solve this problem.
Something else
If I want to keep Android on emmc and only test Ubuntu/Linux OS’s like Manjaro from a micro-sd card
then the Linux OS’s can’t boot from the micro-sd card since the Android u-boot on the emmc(which is a lot older) loads first and not the one on the micro-sd card, so you just get a ‘no signal’ on your tv.
Is there some way Khadas, you or @goenjoy can
upgrade the u-boot used by Android so it can boot both Android(4.4, 4.19 kernels) from emmc and Linux(5.7 kernel) from micro-sd cards?
At the moment only a Linux OS using a 4.4 kernel can boot from a micro-sd card if Android is on emmc. If you want to eg. use Manjaro(5.7 kernel) on a micro-sd card, you need to keep the emmc erased. But a strange thing is, LibreELEC that also uses a 5.7 kernel can boot correctly from a micro-sd card if Android is on emmc but not Manjaro here - Manjaro ARM Linux - Preview1 - Edge-V Pro
Maybe it’s a Manjaro problem?
I haven’t tried this Edge Ubuntu 20.04 v0.9.1 image yet, but will later today.
Not sure if it will have the same problem but maybe since it uses 2020.04 u-boot which Android on emmc doesn’t.