How to mount emmc from micro sd boot up

Hi,

My unit boots up from sd card. Is there a way to mount emmc and check the emmc size and read/write to it? or copy the entire sd card image into emmc and boot up from emmc?

I am running Debian (buster) OS on my micro sd card.

Thanks a lot for your help.

https://wiki.radxa.com/RockpiN10/install/eMMC