With the OEM install the root partition uses the 8GB of the MMC. With the OpenWRT install the root partition is only using 100MB of an overlayfs. See screenshot below.
How can I get OpenWRT to use the 8GB of the MMC? Thanks.
Set the parameter CONFIG_TARGET_ROOTFS_PARTSIZE. It is used on top level in [openwrt/openwrt.git] / include / image.mk, so I think, it is generated in menuconfig.