Often, I insert my USB storage into my computer and it will not mount. I can see the USB drive recognised in KDE's panel, but it will not be mounted. I can click on the mount button in the panel, but nothing happens. If I remove the device and reconnect, always mounts the second time.I looked through sudo journalctl for the relevant log lines, and there were two differences. Firstly, the failed mounting had the additional lines:Mar 04 14:35:34 sparhawk-XPS-17 kernel: usbcore: registered new interface driver usb-storageMar 04 14:35:34 sparhawk-XPS-17 kernel: usbcore: registered new interface driver uasSecondly (perhaps unimportant), the failed mounting did mtp-probe before the kernel detected the USB mass storage device; this order was inverted when it worked.The full log is reproduced below. This represents a failed connection, a disconnection, and a working connection. How can I make my USB device be mounted on the first connection?I am using Arch Linux, but I also experienced this (I think) when I was using Kubuntu.Mar 04 14:35:34 sparhawk-XPS-17 kernel: usb 4-1.2: new high-speed USB device number 7 using ehci-pciMar 04 14:35:34 sparhawk-XPS-17 mtp-probe[5109]: checking bus 4, device 7: /sys/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.2Mar 04 14:35:34 sparhawk-XPS-17 mtp-probe[5109]: bus: 4, device: 7 was not an MTP deviceMar 04 14:35:34 sparhawk-XPS-17 kernel: usb-storage 4-1.2:1.0: USB Mass Storage device detectedMar 04 14:35:34 sparhawk-XPS-17 kernel: scsi host6: usb-storage 4-1.2:1.0Mar 04 14:35:34 sparhawk-XPS-17 kernel: usbcore: registered new interface driver usb-storageMar 04 14:35:34 sparhawk-XPS-17 kernel: usbcore: registered new interface driver uasMar 04 14:35:35 sparhawk-XPS-17 kernel: scsi 6:0:0:0: Direct-Access              USB Flash Memory PMAP PQ: 0 ANSI: 4Mar 04 14:35:36 sparhawk-XPS-17 kernel: sd 6:0:0:0: [sdc] 15240576 512-byte logical blocks: (7.80 GB/7.26 GiB)Mar 04 14:35:36 sparhawk-XPS-17 kernel: sd 6:0:0:0: [sdc] Write Protect is offMar 04 14:35:36 sparhawk-XPS-17 kernel: sd 6:0:0:0: [sdc] Mode Sense: 23 00 00 00Mar 04 14:35:36 sparhawk-XPS-17 kernel: sd 6:0:0:0: [sdc] No Caching mode page foundMar 04 14:35:36 sparhawk-XPS-17 kernel: sd 6:0:0:0: [sdc] Assuming drive cache: write throughMar 04 14:35:36 sparhawk-XPS-17 kernel:  sdc: sdc1Mar 04 14:35:36 sparhawk-XPS-17 kernel: sd 6:0:0:0: [sdc] Attached SCSI removable diskMar 04 14:35:36 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/drives/USB_Flash_Memory_00187D0F56A0EE214000ABF8 has new interfaces: (org.freedesktop.UDisks2.Drive)Mar 04 14:35:36 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/drives/USB_Flash_Memory_00187D0F56A0EE214000ABF8Mar 04 14:35:36 sparhawk-XPS-17 baloo_file[640]: QObject::connect: Cannot connect (null)::accessibilityChanged(bool,QString) to Baloo::StorageDevices::slotAccessibilityChanged(bool,QString)Mar 04 14:35:36 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdc has new interfaces: (org.freedesktop.UDisks2.Block, org.freedesktop.UDisks2.PartitionTable)Mar 04 14:35:36 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdcMar 04 14:35:36 sparhawk-XPS-17 baloo_file[640]: QObject::connect: Cannot connect (null)::accessibilityChanged(bool,QString) to Baloo::StorageDevices::slotAccessibilityChanged(bool,QString)Mar 04 14:35:36 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdc1 has new interfaces: (org.freedesktop.UDisks2.Block, org.freedesktop.UDisks2.Filesystem, org.freedesktop.UDisks2.PartMar 04 14:35:36 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdc1Mar 04 14:35:39 sparhawk-XPS-17 kernel: usb 4-1.2: USB disconnect, device number 7Mar 04 14:35:39 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdc1 lost interfaces: (org.freedesktop.UDisks2.Partition, org.freedesktop.UDisks2.Filesystem, org.freedesktop.UDisks2.BloMar 04 14:35:39 sparhawk-XPS-17 baloo_file[640]: Found removable storage volume for Baloo undocking: /org/freedesktop/UDisks2/block_devices/sdc1Mar 04 14:35:39 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdc lost interfaces: (org.freedesktop.UDisks2.PartitionTable, org.freedesktop.UDisks2.Block)Mar 04 14:35:39 sparhawk-XPS-17 baloo_file[640]: Found removable storage volume for Baloo undocking: /org/freedesktop/UDisks2/block_devices/sdcMar 04 14:35:39 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/drives/USB_Flash_Memory_00187D0F56A0EE214000ABF8 lost interfaces: (org.freedesktop.UDisks2.Drive)Mar 04 14:35:39 sparhawk-XPS-17 baloo_file[640]: Found removable storage volume for Baloo undocking: /org/freedesktop/UDisks2/drives/USB_Flash_Memory_00187D0F56A0EE214000ABF8Mar 04 14:35:39 sparhawk-XPS-17 systemd-udevd[212]: error opening USB device 'descriptors' fileMar 04 14:35:43 sparhawk-XPS-17 kernel: usb 4-1.2: new high-speed USB device number 8 using ehci-pciMar 04 14:35:43 sparhawk-XPS-17 kernel: usb-storage 4-1.2:1.0: USB Mass Storage device detectedMar 04 14:35:43 sparhawk-XPS-17 kernel: scsi host7: usb-storage 4-1.2:1.0Mar 04 14:35:43 sparhawk-XPS-17 mtp-probe[5198]: checking bus 4, device 8: /sys/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.2Mar 04 14:35:43 sparhawk-XPS-17 mtp-probe[5198]: bus: 4, device: 8 was not an MTP deviceMar 04 14:35:44 sparhawk-XPS-17 kernel: scsi 7:0:0:0: Direct-Access              USB Flash Memory PMAP PQ: 0 ANSI: 4Mar 04 14:35:45 sparhawk-XPS-17 kernel: sd 7:0:0:0: [sdc] 15240576 512-byte logical blocks: (7.80 GB/7.26 GiB)Mar 04 14:35:45 sparhawk-XPS-17 kernel: sd 7:0:0:0: [sdc] Write Protect is offMar 04 14:35:45 sparhawk-XPS-17 kernel: sd 7:0:0:0: [sdc] Mode Sense: 23 00 00 00Mar 04 14:35:45 sparhawk-XPS-17 kernel: sd 7:0:0:0: [sdc] No Caching mode page foundMar 04 14:35:45 sparhawk-XPS-17 kernel: sd 7:0:0:0: [sdc] Assuming drive cache: write throughMar 04 14:35:45 sparhawk-XPS-17 kernel:  sdc: sdc1Mar 04 14:35:45 sparhawk-XPS-17 kernel: sd 7:0:0:0: [sdc] Attached SCSI removable diskMar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/drives/USB_Flash_Memory_00187D0F56A0EE214000ABF8 has new interfaces: (org.freedesktop.UDisks2.Drive)Mar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/drives/USB_Flash_Memory_00187D0F56A0EE214000ABF8Mar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: QObject::connect: Cannot connect (null)::accessibilityChanged(bool,QString) to Baloo::StorageDevices::slotAccessibilityChanged(bool,QString)Mar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdc has new interfaces: (org.freedesktop.UDisks2.Block, org.freedesktop.UDisks2.PartitionTable)Mar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdcMar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: QObject::connect: Cannot connect (null)::accessibilityChanged(bool,QString) to Baloo::StorageDevices::slotAccessibilityChanged(bool,QString)Mar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdc1 has new interfaces: (org.freedesktop.UDisks2.Block, org.freedesktop.UDisks2.Filesystem, org.freedesktop.UDisks2.PartMar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdc1Mar 04 14:35:45 sparhawk-XPS-17 udisksd[554]: Mounted /dev/sdc1 at /run/media/lee/Lee-key on behalf of uid 1000Mar 04 14:35:45 sparhawk-XPS-17 org.gtk.Private.UDisks2VolumeMonitor[420]: index_parse.c:190: indx_parse(): error opening /run/media/lee/Lee-key/BDMV/index.bdmvMar 04 14:35:45 sparhawk-XPS-17 org.gtk.Private.UDisks2VolumeMonitor[420]: index_parse.c:190: indx_parse(): error opening /run/media/lee/Lee-key/BDMV/BACKUP/index.bdmvMar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: true /org/freedesktop/UDisks2/block_devices/sdc1Mar 04 14:35:45 sparhawk-XPS-17 polkitd[416]: Operator of unix-session:c2 FAILED to authenticate to gain authorization for action org.freedesktop.udisks2.filesystem-mount for system-bus-name::1.258 [kdeinit4: kded4 [Mar 04 14:35:34 sparhawk-XPS-17 kernel: usb 4-1.2: new high-speed USB device number 7 using ehci-pciMar 04 14:35:34 sparhawk-XPS-17 mtp-probe[5109]: checking bus 4, device 7: /sys/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.2Mar 04 14:35:34 sparhawk-XPS-17 mtp-probe[5109]: bus: 4, device: 7 was not an MTP deviceMar 04 14:35:34 sparhawk-XPS-17 kernel: usb-storage 4-1.2:1.0: USB Mass Storage device detectedMar 04 14:35:34 sparhawk-XPS-17 kernel: scsi host6: usb-storage 4-1.2:1.0Mar 04 14:35:34 sparhawk-XPS-17 kernel: usbcore: registered new interface driver usb-storageMar 04 14:35:34 sparhawk-XPS-17 kernel: usbcore: registered new interface driver uasMar 04 14:35:35 sparhawk-XPS-17 kernel: scsi 6:0:0:0: Direct-Access              USB Flash Memory PMAP PQ: 0 ANSI: 4Mar 04 14:35:36 sparhawk-XPS-17 kernel: sd 6:0:0:0: [sdc] 15240576 512-byte logical blocks: (7.80 GB/7.26 GiB)Mar 04 14:35:36 sparhawk-XPS-17 kernel: sd 6:0:0:0: [sdc] Write Protect is offMar 04 14:35:36 sparhawk-XPS-17 kernel: sd 6:0:0:0: [sdc] Mode Sense: 23 00 00 00Mar 04 14:35:36 sparhawk-XPS-17 kernel: sd 6:0:0:0: [sdc] No Caching mode page foundMar 04 14:35:36 sparhawk-XPS-17 kernel: sd 6:0:0:0: [sdc] Assuming drive cache: write throughMar 04 14:35:36 sparhawk-XPS-17 kernel:  sdc: sdc1Mar 04 14:35:36 sparhawk-XPS-17 kernel: sd 6:0:0:0: [sdc] Attached SCSI removable diskMar 04 14:35:36 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/drives/USB_Flash_Memory_00187D0F56A0EE214000ABF8 has new interfaces: (org.freedesktop.UDisks2.Drive)Mar 04 14:35:36 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/drives/USB_Flash_Memory_00187D0F56A0EE214000ABF8Mar 04 14:35:36 sparhawk-XPS-17 baloo_file[640]: QObject::connect: Cannot connect (null)::accessibilityChanged(bool,QString) to Baloo::StorageDevices::slotAccessibilityChanged(bool,QString)Mar 04 14:35:36 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdc has new interfaces: (org.freedesktop.UDisks2.Block, org.freedesktop.UDisks2.PartitionTable)Mar 04 14:35:36 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdcMar 04 14:35:36 sparhawk-XPS-17 baloo_file[640]: QObject::connect: Cannot connect (null)::accessibilityChanged(bool,QString) to Baloo::StorageDevices::slotAccessibilityChanged(bool,QString)Mar 04 14:35:36 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdc1 has new interfaces: (org.freedesktop.UDisks2.Block, org.freedesktop.UDisks2.Filesystem, org.freedesktop.UDisks2.PartMar 04 14:35:36 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdc1Mar 04 14:35:39 sparhawk-XPS-17 kernel: usb 4-1.2: USB disconnect, device number 7Mar 04 14:35:39 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdc1 lost interfaces: (org.freedesktop.UDisks2.Partition, org.freedesktop.UDisks2.Filesystem, org.freedesktop.UDisks2.BloMar 04 14:35:39 sparhawk-XPS-17 baloo_file[640]: Found removable storage volume for Baloo undocking: /org/freedesktop/UDisks2/block_devices/sdc1Mar 04 14:35:39 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdc lost interfaces: (org.freedesktop.UDisks2.PartitionTable, org.freedesktop.UDisks2.Block)Mar 04 14:35:39 sparhawk-XPS-17 baloo_file[640]: Found removable storage volume for Baloo undocking: /org/freedesktop/UDisks2/block_devices/sdcMar 04 14:35:39 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/drives/USB_Flash_Memory_00187D0F56A0EE214000ABF8 lost interfaces: (org.freedesktop.UDisks2.Drive)Mar 04 14:35:39 sparhawk-XPS-17 baloo_file[640]: Found removable storage volume for Baloo undocking: /org/freedesktop/UDisks2/drives/USB_Flash_Memory_00187D0F56A0EE214000ABF8Mar 04 14:35:39 sparhawk-XPS-17 systemd-udevd[212]: error opening USB device 'descriptors' fileMar 04 14:35:43 sparhawk-XPS-17 kernel: usb 4-1.2: new high-speed USB device number 8 using ehci-pciMar 04 14:35:43 sparhawk-XPS-17 kernel: usb-storage 4-1.2:1.0: USB Mass Storage device detectedMar 04 14:35:43 sparhawk-XPS-17 kernel: scsi host7: usb-storage 4-1.2:1.0Mar 04 14:35:43 sparhawk-XPS-17 mtp-probe[5198]: checking bus 4, device 8: /sys/devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.2Mar 04 14:35:43 sparhawk-XPS-17 mtp-probe[5198]: bus: 4, device: 8 was not an MTP deviceMar 04 14:35:44 sparhawk-XPS-17 kernel: scsi 7:0:0:0: Direct-Access              USB Flash Memory PMAP PQ: 0 ANSI: 4Mar 04 14:35:45 sparhawk-XPS-17 kernel: sd 7:0:0:0: [sdc] 15240576 512-byte logical blocks: (7.80 GB/7.26 GiB)Mar 04 14:35:45 sparhawk-XPS-17 kernel: sd 7:0:0:0: [sdc] Write Protect is offMar 04 14:35:45 sparhawk-XPS-17 kernel: sd 7:0:0:0: [sdc] Mode Sense: 23 00 00 00Mar 04 14:35:45 sparhawk-XPS-17 kernel: sd 7:0:0:0: [sdc] No Caching mode page foundMar 04 14:35:45 sparhawk-XPS-17 kernel: sd 7:0:0:0: [sdc] Assuming drive cache: write throughMar 04 14:35:45 sparhawk-XPS-17 kernel:  sdc: sdc1Mar 04 14:35:45 sparhawk-XPS-17 kernel: sd 7:0:0:0: [sdc] Attached SCSI removable diskMar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/drives/USB_Flash_Memory_00187D0F56A0EE214000ABF8 has new interfaces: (org.freedesktop.UDisks2.Drive)Mar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/drives/USB_Flash_Memory_00187D0F56A0EE214000ABF8Mar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: QObject::connect: Cannot connect (null)::accessibilityChanged(bool,QString) to Baloo::StorageDevices::slotAccessibilityChanged(bool,QString)Mar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdc has new interfaces: (org.freedesktop.UDisks2.Block, org.freedesktop.UDisks2.PartitionTable)Mar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdcMar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: QObject::connect: Cannot connect (null)::accessibilityChanged(bool,QString) to Baloo::StorageDevices::slotAccessibilityChanged(bool,QString)Mar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdc1 has new interfaces: (org.freedesktop.UDisks2.Block, org.freedesktop.UDisks2.Filesystem, org.freedesktop.UDisks2.PartMar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: /org/freedesktop/UDisks2/block_devices/sdc1Mar 04 14:35:45 sparhawk-XPS-17 udisksd[554]: Mounted /dev/sdc1 at /run/media/lee/Lee-key on behalf of uid 1000Mar 04 14:35:45 sparhawk-XPS-17 org.gtk.Private.UDisks2VolumeMonitor[420]: index_parse.c:190: indx_parse(): error opening /run/media/lee/Lee-key/BDMV/index.bdmvMar 04 14:35:45 sparhawk-XPS-17 org.gtk.Private.UDisks2VolumeMonitor[420]: index_parse.c:190: indx_parse(): error opening /run/media/lee/Lee-key/BDMV/BACKUP/index.bdmvMar 04 14:35:45 sparhawk-XPS-17 baloo_file[640]: true /org/freedesktop/UDisks2/block_devices/sdc1Mar 04 14:35:45 sparhawk-XPS-17 polkitd[416]: Operator of unix-session:c2 FAILED to authenticate to gain authorization for action org.freedesktop.udisks2.filesystem-mount for system-bus-name::1.258 [kdeinit4: kded4 [
Why do I have to insert USB storage twice to mount it?
arch linux;mount;usb;kde;usb drive