[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