How many OS do you have for your VIM3?

[Spikerguy]

Hello and Welcome to the community.
I suggest you burn Android eMMC image using the following links.
Latest OS Images:

VIMs && Edge Ubuntu Firmware V190830 Rom Release

Here we release some New Ubuntu ROM for VIMs and Edge. Check Firmware Page to download the ROM. Change logs VIM1 kernel update to 4.9.190 add initial support for OTA add u-boot package support add install SD image to eMMC script support switch kodi to 18.3 stable version add initial support for WiringPi add V14 support update ubuntu rootfs VIM2 kernel update to 4.9.190 add initial support for OTA add u-boot package support add install SD image to eMMC script support add initial sup…

Updating Link:
https://docs.khadas.com/vim3/UpgradeViaUSBCable.html

After that you can Flash LibreElec on SD Card and CoreElec and test both one by one and see which one is stable for your use cases. And once you’re confirmed about the ROM you want to put in the eMMC, you can flash that rom on eMMC using the Install script but check which ones are compatible to install script.

@melvin

Per my understanding up to now, 2 or 3 systems are required to achieve them.
For online videos, I should have original android or android TV.
For local videos, KODI is the first choice and there are 2 options, CoreELEC or LibreELEC.
For game console, original Android and some special linux distribution maybe.

I think LibreElec/CoreElec can do all the above work in single OS except for android games. You can use Retro Arch for games but not the android games.

@melvin

Could I have 3 or more bootable systems on eMMC?

Currently it is not available out of the box, But I have seen somewhere, grub for arm is available where you can define which OS is on which partition and have option to select which OS to boot on start-up.

@melvin

By put the systems on SD(TF actually) Cards or UBS disks, would that cause any problems or performance issues?

If you have a faster SD Card then it should not be a problem with performance.

I hope this helps.