Fragment of a
discussion from
Talk:R-Car/Boards/Yocto-Gen3Viewing a history listing
I think that you need to add a package.
Ex) Add the following to build/conf/local.conf
IMAGE_INSTALL_append = " e2fsprogs"
For details, please refer to Yocto manual.
Thank you very much for having you teach it.
I try it. I report the result some other time.
Thanks to you, I was able to format eMMC.
And I was able to write in Linux image at eMMC.