21.10 sometimes ignoring USB memory sticks - and a possible workaround.

[Ian Bruntlett]

Hi Colin,

More observation from today:-
Using a SanDisk Cruzer Blade (called HERMES) USB flash drive.
If the drive does not automount (is that the right word?), start Nautilus
(file manager) and click on HERMES to mount the flash drive.

Sods law - when I tried it today, the first time, it worked.
did-automount-info.txt
======================
Oct 22 12:33:31 descartes systemd[1]: systemd-localed.service: Deactivated
successfully.
Oct 22 12:33:31 descartes systemd[1]: systemd-hostnamed.service:
Deactivated successfully.
Oct 22 12:33:35 descartes kernel: usb 2-2: new high-speed USB device number
4 using ehci-pci
Oct 22 12:33:35 descartes kernel: usb 2-2: New USB device found,
idVendor=0781, idProduct=5567, bcdDevice= 1.00
Oct 22 12:33:35 descartes kernel: usb 2-2: New USB device strings: Mfr=1,
Product=2, SerialNumber=3
Oct 22 12:33:35 descartes kernel: usb 2-2: Product: Cruzer Blade
Oct 22 12:33:35 descartes kernel: usb 2-2: Manufacturer: SanDisk
Oct 22 12:33:35 descartes kernel: usb 2-2: SerialNumber:
4C530000220228211085
Oct 22 12:33:36 descartes mtp-probe[2245]: checking bus 2, device 4:
"/sys/devices/pci0000:00/0000:00:1d.7/usb2/2-2"
Oct 22 12:33:36 descartes mtp-probe[2245]: bus: 2, device: 4 was not an MTP
device
Oct 22 12:33:36 descartes kernel: usb-storage 2-2:1.0: USB Mass Storage
device detected
Oct 22 12:33:36 descartes kernel: scsi host5: usb-storage 2-2:1.0
Oct 22 12:33:36 descartes kernel: usbcore: registered new interface driver
usb-storage
Oct 22 12:33:36 descartes kernel: usbcore: registered new interface driver
uas
Oct 22 12:33:36 descartes mtp-probe[2260]: checking bus 2, device 4:
"/sys/devices/pci0000:00/0000:00:1d.7/usb2/2-2"
Oct 22 12:33:36 descartes mtp-probe[2260]: bus: 2, device: 4 was not an MTP
device
Oct 22 12:33:37 descartes kernel: scsi 5:0:0:0: Direct-Access     SanDisk
 Cruzer Blade     1.00 PQ: 0 ANSI: 6
Oct 22 12:33:37 descartes kernel: sd 5:0:0:0: Attached scsi generic sg2
type 0
Oct 22 12:33:37 descartes kernel: sd 5:0:0:0: [sdb] 30031872 512-byte
logical blocks: (15.4 GB/14.3 GiB)
Oct 22 12:33:37 descartes kernel: sd 5:0:0:0: [sdb] Write Protect is off
Oct 22 12:33:37 descartes kernel: sd 5:0:0:0: [sdb] Mode Sense: 43 00 00 00
Oct 22 12:33:37 descartes kernel: sd 5:0:0:0: [sdb] Write cache: disabled,
read cache: enabled, doesn't support DPO or FUA
Oct 22 12:33:37 descartes kernel:  sdb: sdb1
Oct 22 12:33:37 descartes kernel: sd 5:0:0:0: [sdb] Attached SCSI removable
disk
Oct 22 12:33:38 descartes udisksd[656]: Mounted /dev/sdb1 at
/media/rene/HERMES on behalf of uid 1000
Oct 22 12:33:38 descartes dbus-daemon[1324]: [session uid=1000 pid=1324]
Activating service name='org.gnome.Shell.HotplugSniffer' reque

So I carried on using the system and it eventually did not automount.  So I
had to do something like 'sudo dmesg | tail -30'
did-automount-info.txt
======================
Oct 22 12:33:31 descartes systemd[1]: systemd-localed.service: Deactivated
successfully.
Oct 22 12:33:31 descartes systemd[1]: systemd-hostnamed.service:
Deactivated successfully.
Oct 22 12:33:35 descartes kernel: usb 2-2: new high-speed USB device number
4 using ehci-pci
Oct 22 12:33:35 descartes kernel: usb 2-2: New USB device found,
idVendor=0781, idProduct=5567, bcdDevice= 1.00
Oct 22 12:33:35 descartes kernel: usb 2-2: New USB device strings: Mfr=1,
Product=2, SerialNumber=3
Oct 22 12:33:35 descartes kernel: usb 2-2: Product: Cruzer Blade
Oct 22 12:33:35 descartes kernel: usb 2-2: Manufacturer: SanDisk
Oct 22 12:33:35 descartes kernel: usb 2-2: SerialNumber:
4C530000220228211085
Oct 22 12:33:36 descartes mtp-probe[2245]: checking bus 2, device 4:
"/sys/devices/pci0000:00/0000:00:1d.7/usb2/2-2"
Oct 22 12:33:36 descartes mtp-probe[2245]: bus: 2, device: 4 was not an MTP
device
Oct 22 12:33:36 descartes kernel: usb-storage 2-2:1.0: USB Mass Storage
device detected
Oct 22 12:33:36 descartes kernel: scsi host5: usb-storage 2-2:1.0
Oct 22 12:33:36 descartes kernel: usbcore: registered new interface driver
usb-storage
Oct 22 12:33:36 descartes kernel: usbcore: registered new interface driver
uas
Oct 22 12:33:36 descartes mtp-probe[2260]: checking bus 2, device 4:
"/sys/devices/pci0000:00/0000:00:1d.7/usb2/2-2"
Oct 22 12:33:36 descartes mtp-probe[2260]: bus: 2, device: 4 was not an MTP
device
Oct 22 12:33:37 descartes kernel: scsi 5:0:0:0: Direct-Access     SanDisk
 Cruzer Blade     1.00 PQ: 0 ANSI: 6
Oct 22 12:33:37 descartes kernel: sd 5:0:0:0: Attached scsi generic sg2
type 0
Oct 22 12:33:37 descartes kernel: sd 5:0:0:0: [sdb] 30031872 512-byte
logical blocks: (15.4 GB/14.3 GiB)
Oct 22 12:33:37 descartes kernel: sd 5:0:0:0: [sdb] Write Protect is off
Oct 22 12:33:37 descartes kernel: sd 5:0:0:0: [sdb] Mode Sense: 43 00 00 00
Oct 22 12:33:37 descartes kernel: sd 5:0:0:0: [sdb] Write cache: disabled,
read cache: enabled, doesn't support DPO or FUA
Oct 22 12:33:37 descartes kernel:  sdb: sdb1
Oct 22 12:33:37 descartes kernel: sd 5:0:0:0: [sdb] Attached SCSI removable
disk
Oct 22 12:33:38 descartes udisksd[656]: Mounted /dev/sdb1 at
/media/rene/HERMES on behalf of uid 1000
Oct 22 12:33:38 descartes dbus-daemon[1324]: [session uid=1000 pid=1324]
Activating service name='org.gnome.Shell.HotplugSniffer' reque

Note that the second last line in both examples says "Mounted /dev/sdb1 at
/media/rene/HERMES".

Now I am really confused.

However, the GNOME Notifications -beeping when HERMES is plugged in -
beeping when unmounted from Nautilus seem to be my most accurate indicator
of this fault. If a device does not automount, you don't get the beep on
plugging it in. Could this be a GNOME issue?

HTH,


Ian

-- 
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