In local.conf, I can see:
PACKAGE_CLASSES ?= "package_rpm"
However, after boot the yocto OS, the rpm command not found.
PACKAGE_CLASSES
specifies the package manager the OpenEmbedded build system uses when packaging data. This will not add rpm
package to your image.
To have rpm
package to your image, add EXTRA_IMAGE_FEATURES += "package-management"
to your conf/local.conf