[OpenWrt Wiki] Raspberry Pi
https://openwrt.org/toh/raspberry_pi_foundation/raspberry_piRaspberry Pi The Raspberry Pi is a single-board computer without an Ethernet Network Switch. There are many more Single-board computers without one. Raspberry Pi 1 and Zero support only soft-float (armel) which is slower than hard-float. Raspberry Pi 2 and 3 is compiled with the ARM hard-float kernel ABI (armhf), this means that non-integer math is done in hardware instead of …
[OpenWrt Wiki] Raspberry Pi
openwrt.org › toh › raspberry_pi_foundationThe Raspberry Pi will boot OpenWrt. Alternatively, flashing from the Linux command line, plug in the SD card and run as root or sudo check kernel messages as follows: dmesg The most recent message should give you the SD card device name, such as sdb or sdf or similar. Ensure the drive was not auto-mounted by your OS