The Smell of Molten Projects in the Morning

Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

The New Hotness

  • Google Pixel vs. USB Mounting

    For reasons undoubtedly making sense at the time, the Google Pixel (and, most likely, current Android devices) don’t support the USB Mass Storage protocol. A bit of poking around suggests the jmtpfs utility supplies the other end of the Pixel’s Media Transfer Protocol and the process goes a little something like this:

    • Once upon a time, create a mountpoint: mkdir /mnt/pixel
    • Unlock the phone
    • Plug in the USB cable
    • Pull down the top menu, tap USB charging this device
    • Select Transfer Files
    • sudo jmtpfs /mnt/pixel -o allow_other,fsname="Pixel"

    The allow_other parameter sets the directory / file permissions so ordinary users can access the files. The fsname is just for pretty.

    The Pixel’s storage then appears as the awkwardly named /mnt/pixel/Internal\ shared\ storage/ directory.

    Despite being somewhat Linuxy under the hood, the mapped storage doesn’t support the usual filesystem attributes, so don’t try to transfer them with, say, rsync -a:

    rsync -rhu --progress /mnt/music/Music\ for\ Programming /mnt/pixel/Internal\ shared\ storage/Music/
    

    When you’re done: sudo umount /mnt/pixel

    This may not be a win over bankshotting off Dropbox or Google Drive, except for sensitive bits like private keys and suchlike.

    Thunar apparently knows how to detect and mount mtp devices automagically and I suppose GUI-fied drag-n-drop works as you’d expect.