I have a USB Stick which is recognized by my laptop but there is no partition to mount. The device is listed in /dev/ as sdb but no partition /dev/sdb1. fdisk -l also displays nothing about /dev/sdb. I also tried to reread the partition table with partprobe which had no effect. I did not update my kernel, rebooted none the less, still same result.I also found this question: Mounting USB Drive that is Not Recognized which was solved by the answers here bbs.archlinux.org, but those didn't help me since my /etc/udev/rules.d/ is empty.dmesg outputs the following when I plug in the stick:usb 3-1: new high-speed USB device number 2 using xhci_hcdusb-storage 3-1:1.0: USB Mass Storage device detectedscsi host6: usb-storage 3-1:1.0usbcore: registered new interface driver usb-storageusbcore: registered new interface driver uasscsi 6:0:0:0: Direct-Access 2238 PRAM 1.00 PQ: 0 ANSI: 0 CCSsd 6:0:0:0: [sdb] Attached SCSI removable disklsusb displays my stick:Bus 003 Device 004: ID 13fe:3100 Kingston Technology Company Inc. 2/4 GB stickThe output of udevadm monitor is:monitor will print the received events for:UDEV - the event which udev sends out after rule processingKERNEL - the kernel ueventKERNEL[475.967958] add /devices/pci0000:00/0000:00:14.0/usb3/3-2 (usb)KERNEL[475.968047] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0 (usb)KERNEL[475.968467] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7 (scsi)KERNEL[475.968757] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7/scsi_host/host7 (scsi_host)UDEV  [476.071403] add /devices/pci0000:00/0000:00:14.0/usb3/3-2 (usb)UDEV  [476.136149] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0 (usb)UDEV  [476.136834] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7 (scsi)UDEV  [476.138221] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7/scsi_host/host7 (scsi_host)KERNEL[476.971068] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7/target7:0:0 (scsi)KERNEL[476.971147] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7/target7:0:0/7:0:0:0 (scsi)KERNEL[476.971196] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7/target7:0:0/7:0:0:0/scsi_disk/7:0:0:0 (scsi_disk)KERNEL[476.971334] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7/target7:0:0/7:0:0:0/scsi_device/7:0:0:0 (scsi_device)KERNEL[476.971780] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7/target7:0:0/7:0:0:0/bsg/7:0:0:0 (bsg)KERNEL[476.971813] add /devices/virtual/bdi/8:16 (bdi)KERNEL[476.971898] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7/target7:0:0/7:0:0:0/block/sdb (block)UDEV  [476.972288] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7/target7:0:0 (scsi)KERNEL[476.972597] change /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7/target7:0:0/7:0:0:0/block/sdb (block)UDEV  [476.973246] add /devices/virtual/bdi/8:16 (bdi)UDEV  [476.973710] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7/target7:0:0/7:0:0:0 (scsi)UDEV  [476.974907] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7/target7:0:0/7:0:0:0/scsi_disk/7:0:0:0 (scsi_disk)UDEV  [476.974949] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7/target7:0:0/7:0:0:0/scsi_device/7:0:0:0 (scsi_device)UDEV  [476.975955] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7/target7:0:0/7:0:0:0/bsg/7:0:0:0 (bsg)UDEV  [476.986215] add /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7/target7:0:0/7:0:0:0/block/sdb (block)UDEV  [477.000467] change /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.0/host7/target7:0:0/7:0:0:0/block/sdb (block)Since it seems that the stick is nearly dead I wanted to make a backup of the data so that I could restore it later. I found this How Do I Create a Bit-Identical Image of a USB Stick?So I ran:sudo dd if=/dev/sdb of=~/usb.img bs=4MWhich resulted in:dd: failed to open /dev/sdb: No medium foundI also tried the same with ddrescue with the same result:ddrescue: Can't open input file: No medium foundSo do you know if there is any way to access or at least save the data on my stick? Thanks for the help!EDIT1Today I wanted to post the output of lsblk requested in the comments and my stick showed a different behaviour than when I originally asked this question.dmesg displayed the following:usb 1-2: new high-speed USB device number 9 using xhci_hcdusb-storage 1-2:1.0: USB Mass Storage device detectedscsi host7: usb-storage 1-2:1.0scsi 7:0:0:0: Direct-Access     Kingston DT R500          PMAP PQ: 0 ANSI: 0 CCSsd 7:0:0:0: [sdb] 31227904 512-byte logical blocks: (15.9 GB/14.8 GiB)sd 7:0:0:0: [sdb] Write Protect is offsd 7:0:0:0: [sdb] Mode Sense: 23 00 00 00sd 7:0:0:0: [sdb] No Caching mode page foundsd 7:0:0:0: [sdb] Assuming drive cache: write throughsdb: sdb1sd 7:0:0:0: [sdb] Attached SCSI removable diskusb 1-2: reset high-speed USB device number 9 using xhci_hcdusb 1-2: device descriptor read/64, error -110usb 1-2: device descriptor read/64, error -110usb 1-2: reset high-speed USB device number 9 using xhci_hcdusb 1-2: device descriptor read/64, error -110usb 1-2: device descriptor read/64, error -110usb 1-2: reset high-speed USB device number 9 using xhci_hcdusb 1-2: device descriptor read/8, error -110usb 1-2: device descriptor read/8, error -110usb 1-2: reset high-speed USB device number 9 using xhci_hcdusb 1-2: device descriptor read/8, error -110usb 1-2: device descriptor read/8, error -110usb 1-2: USB disconnect, device number 9sd 7:0:0:0: [sdb] UNKNOWN Result: hostbyte=0x01 driverbyte=0x00sd 7:0:0:0: [sdb] CDB: cdb[0]=0x28: 28 00 01 dc 7f 80 00 00 08 00blk_update_request: I/O error, dev sdb, sector 31227776xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff880213bcf240xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff880213bcf288usb 1-2: new high-speed USB device number 10 using xhci_hcdusb 1-2: device descriptor read/64, error -110usb 1-2: device descriptor read/64, error -110usb 1-2: new high-speed USB device number 11 using xhci_hcdusb 1-2: device descriptor read/64, error -110usb 1-2: device descriptor read/64, error -110usb 1-2: new high-speed USB device number 12 using xhci_hcdusb 1-2: device descriptor read/8, error -110usb 1-2: device descriptor read/8, error -110usb 1-2: new high-speed USB device number 13 using xhci_hcdusb 1-2: device descriptor read/8, error -110usb 1-2: device descriptor read/8, error -110usb usb1-port2: unable to enumerate USB deviceI also connected the stick to my Windows Computer. It could access the stick but there were no files showing.
USB Stick recognized but not mountable
arch linux;mount;usb drive;dd