flash.py: handle RPI-RP2 block device not yet mounted on Linux#147
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When a Pico is already in bootloader mode, the block device appears (/dev/sda1, label RPI-RP2) but may not be auto-mounted. The previous code only checked mounted paths, so it fell through to serial scanning and bailed with "No Pico boards found over USB". Now checks the block device before scanning serial ports. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
flash.pybails with "No Pico boards found over USB" on Linux when the Pico is already in bootloader mode but the RPI-RP2 volume hasn't been auto-mounted yet (block device exists at e.g./dev/sda1but no mount point)_find_rpi_rp2_blockdev()check before falling through to serial port scanningTest plan
flash.pybefore OS auto-mounts — previously failed, now flashes correctly🤖 Generated with Claude Code