Unable to mount external SSD

Discussion in 'Linux Guest OS Discussion' started by KevinG12, Jan 4, 2021.

  1. KevinG12

    KevinG12 Bit Poster

    Messages:
    5
    I am unable to see external SSD's in Linux. I have tried CentOS 6.10 and Ubuntu 18.04, neither sees the drives anymore. I'm using one of those USB to SATA cables, which used to work up until two-ish updates to parallels. I've also tried a different brand, externally powered SSD/HDD dock-style with the same result.

    I can see the USB cable in the VM running "lsusb", but no block device is shown with "lsblk" and nothing in /dev.

    FWIW, Windows 10 VM sees the drives with no problem. Any suggestions?
     
  2. KevinG12

    KevinG12 Bit Poster

    Messages:
    5
    Some follow-up info...when plugging USB in, dmesg shows the following:
    Code:
    usb-storage: device found at 69
    usb-storage: waiting for device to settle before scanning
    usb-storage: device scan complete
    usb 1-12: reset high speed USB device number 69 using ehci_hcd
    usb 1-12: reset high speed USB device number 69 using ehci_hcd
    usb 1-12: reset high speed USB device number 69 using ehci_hcd
    usb 1-12: reset high speed USB device number 69 using ehci_hcd
    usb 1-12: reset high speed USB device number 69 using ehci_hcd
    scsi 14:0:0:0: Device offlined - not ready after error recovery
    I've tried increasing the kernel module (usb_storage) delay with both a config file and kernel option at boot with no success. Interestingly, I can sometimes see the drives in my VM if I reboot with them still attached. But disconnecting and reconnecting never recovers.

    I am currently on Parallels Business Edition Version 16.1.2 (49151)...as far as I can remember, it broke two updates ago and affects all versions of Linux for me.

    CentOS 6.10 (2.6.32-754.33.1.el6.x86_64)
    Ubuntu 18.04 (4.15.0-112-generic)
     
  3. KevinG12

    KevinG12 Bit Poster

    Messages:
    5
    Unfortunately, update 16.1.3 has not addressed the issue.
     
  4. KevinG12

    KevinG12 Bit Poster

    Messages:
    5
    I gave up and downgraded to Version 15.1.5 (47309)...USB to SATA works again.
     

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