When attaching an Android device to a Linux machine, you may see a popup with the message:
Unable to open MTP device "001,104"
The numbers may vary depending upon device and port:
# tail -f /var/log/kern.log May 5 22:53:51 nuc8i7hvk01 kernel: [3205901.564694] usb 1-1: new high-speed USB device number 105 using xhci_hcd May 5 22:53:51 nuc8i7hvk01 kernel: [3205901.714863] usb 1-1: New USB device found, idVendor=18d1, idProduct=4ee1, bcdDevice= 2.23 May 5 22:53:51 nuc8i7hvk01 kernel: [3205901.714865] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 May 5 22:53:51 nuc8i7hvk01 kernel: [3205901.714866] usb 1-1: Product: Nexus 6 May 5 22:53:51 nuc8i7hvk01 kernel: [3205901.714867] usb 1-1: Manufacturer: motorola May 5 22:53:51 nuc8i7hvk01 kernel: [3205901.714868] usb 1-1: SerialNumber: ZX1G22MGK2
Further diagnostics generate:
# mtp-detect libmtp version: 1.1.17 Listing raw device(s) No raw devices found. root@nuc8i7hvk01:/home/rpb# mtp-detect libmtp version: 1.1.17 Listing raw device(s) Device 0 (VID=18d1 and PID=4ee1) is a Google Inc Nexus/Pixel (MTP). Found 1 device(s): Google Inc: Nexus/Pixel (MTP) (18d1:4ee1) @ bus 1, dev 103 Attempting to connect device(s) error returned by libusb_claim_interface() = -6LIBMTP PANIC: Unable to initialize device Unable to open raw device 0 OK.
On my system, the culprit is the gvfs filesystem packages:
# dpkg -l |grep gvfs ii gvfs:amd64 1.46.2-1 amd64 userspace virtual filesystem - GIO module ii gvfs-backends 1.46.2-1 amd64 userspace virtual filesystem - backends ii gvfs-common 1.46.2-1 all userspace virtual filesystem - common data files ii gvfs-daemons 1.46.2-1 amd64 userspace virtual filesystem - servers ii gvfs-fuse 1.46.2-1 amd64 userspace virtual filesystem - fuse server ii gvfs-libs:amd64 1.46.2-1 amd64 userspace virtual filesystem - private libraries # systemctl |grep gvfs run-user-1000-gvfs.mount loaded active mounted /run/user/1000/gvfs # ps aux |grep gvfs rpb 1886 0.0 0.0 241436 4036 ? Ssl Mar29 0:00 /usr/libexec/gvfsd rpb 1891 0.0 0.0 753756 3364 ? Sl Mar29 0:26 /usr/libexec/gvfsd-fuse /run/user/1000/gvfs -f rpb 2009 0.0 0.0 501008 4632 ? Ssl Mar29 0:00 /usr/libexec/gvfs-udisks2-volume-monitor rpb 2041 0.0 0.0 237900 4828 ? Ssl Mar29 0:00 /usr/libexec/gvfs-mtp-volume-monitor rpb 2061 0.0 0.0 239776 3052 ? Ssl Mar29 0:00 /usr/libexec/gvfs-gphoto2-volume-monitor rpb 2069 0.0 0.0 237500 3052 ? Ssl Mar29 0:00 /usr/libexec/gvfs-goa-volume-monitor rpb 2073 0.0 0.0 315992 3160 ? Ssl Mar29 0:41 /usr/libexec/gvfs-afc-volume-monitor rpb 2135 0.0 0.0 391244 6824 ? Sl Mar29 0:02 /usr/libexec/gvfsd-trash --spawner :1.8 /org/gtk/gvfs/exec_spaw/0 rpb 178920 0.0 0.0 315892 3956 ? Sl Mar30 0:01 /usr/libexec/gvfsd-network --spawner :1.8 /org/gtk/gvfs/exec_spaw/1 rpb 178946 0.0 0.0 317528 3172 ? Sl Mar30 0:01 /usr/libexec/gvfsd-dnssd --spawner :1.8 /org/gtk/gvfs/exec_spaw/3 rpb 179014 0.0 0.0 206540 5372 ? Ssl Mar30 1:29 /usr/libexec/gvfsd-metadata
The file browser known as pcmanfs does not seem to be able to access the filesystem
Solution: Dolphin, as a substitute for Nautilus, can be used to access the virtual filesystems.
The command gio can be used to access the file system:
# gio Usage: gio COMMAND [ARGS…] Commands: help Print help version Print version cat Concatenate files to standard output copy Copy one or more files info Show information about locations list List the contents of locations mime Get or set the handler for a mimetype mkdir Create directories monitor Monitor files and directories for changes mount Mount or unmount the locations move Move one or more files open Open files with the default application rename Rename a file remove Delete one or more files save Read from standard input and save set Set a file attribute trash Move files or directories to the trash tree Lists the contents of locations in a tree Use “gio help COMMAND” to get detailed help.
Background info via Wikipedia, which comes with a set of back-ends, including trash support, SFTP, FTP, WebDAV, SMB, and local data via Udev integration, OBEX, MTP and others.
- Don't know why this has to be so difficult on Debian, why all the competing applications which lock each other out?
- Remember: on Android, once connected, select transfer files
- May need to open a new dolphin window to actually get at the files
- And then in Dolphin, the actual right-click/copy/paste doesn't actually work -- need to load a file and then save it.... just painful .. I hope other's experience is less painful ... maybe I have to rebuild my machine
