drasko@Hegel:~/yocto/build$ bitbake -e altera-image | grep IMAGE_FEATURES
# IMAGE_FEATURES=package-management
IMAGE_FEATURES="package-management"
# ROOTFS_POSTPROCESS_COMMAND=license_create_manifest;  rootfs_update_timestamp ;  ${@base_contains("IMAGE_FEATURES", "debug-tweaks", "", "zap_root_password ; ",d)} ${@base_contains("IMAGE_FEATURES", "debug-tweaks ssh-server-openssh", "openssh_allow_empty_password; ", "",d)} remove_packaging_data_files ;
# FEATURE_INSTALL_OPTIONAL=${@' '.join(oe.packagegroup.optional_packages(oe.data.typed_value('IMAGE_FEATURES', d), d))}
# ROOTFS_BOOTSTRAP_INSTALL=${@base_contains("IMAGE_FEATURES", "package-management", "", "${ROOTFS_PKGMANAGE_BOOTSTRAP}",d)}
# FEATURE_INSTALL=${@' '.join(oe.packagegroup.required_packages(oe.data.typed_value('IMAGE_FEATURES', d), d))}
# SDKIMAGE_FEATURES=dev-pkgs dbg-pkgs
SDKIMAGE_FEATURES="dev-pkgs dbg-pkgs"
# IMAGE_FEATURES_REPLACES_ssh-server-openssh=ssh-server-dropbear
IMAGE_FEATURES_REPLACES_ssh-server-openssh="ssh-server-dropbear"
# IMAGE_INSTALL_COMPLEMENTARY=${@complementary_globs("IMAGE_FEATURES", d)}
# EXTRA_IMAGE_FEATURES=debug-tweaks
EXTRA_IMAGE_FEATURES="debug-tweaks"
# SDKIMAGE_INSTALL_COMPLEMENTARY=${@complementary_globs("SDKIMAGE_FEATURES", d)}
    """Return all the IMAGE_FEATURES, with the exception of our special package groups"""
    features = set(oe.data.typed_value('IMAGE_FEATURES', d))