File System no longer mounts

Something still not right. If I reset UDEV, and use the physical boot button, the LED’s are off and /media/$USER/RPI-RP2 mounts.

If I then unplug and replug the BP, /media/$USER/BUS_PIRATE5 mounts.

If I connect to the BP, and type “#” to do a reset, no file system mounts and the LED’s flash.

If I reset UDEV, reconnect the BP, the file system mounts.
I then connect to the BP, and type “$”, the file system unmounts, and does not remount. The LED’s stay on and do not change.

If I do not unplug the BP after I type “$”, then

  1. No file system mounts
  2. The LED’s stay on constantly
  3. No /dev/tty’s show up.

If I unplug and replug the BP, then

  1. no file system mounts
  2. the /dev/ttyACM0 and 1 show up but I don’t have permission to connect to them
  3. the LED’s flash

If I again replug the BP, it’s the same as above.

If I again replug the BP - it works normally.

If I connect to the BP and type “$”, then disconnect the BP and restart UDEV and replug the BP, I can connect to the BP but the file system doesn’t mount

I think this has something to do with the MTP (Media Transport Protocol). I also see

Volume was not properly unmounted. Some data may be corrupt. Please run fsck.

BTW, I ran fsck to check the file system but did not make any changes. It did report

There is no label in boot sector, but there is volume label ‘BUS_PIRATE5’ stored in root directory