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I have been using this hard drive as a backup drive for my Ubuntu machine.

lsb_release -a 
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.2 LTS
Release:    20.04
Codename:   focal

I stupidly connected this drive to my Windows machine Windows 10 Enterprise Version 20H2 OS build 19042.1466

I saved some data on the drive. Did a safe eject.

Plugged it in to my Linux machine.

Now the drive fails to mount and simply beeps indefinitely.

Can anyone advise?

Soren A
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M. Giannak
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    What file system are you using on the drive? Were all of your files on the drive when you opened it on Windows? And are they still? – Nmath Feb 09 '22 at 09:46
  • Does it connect via USB? Open a terminal and type lsusb and edit your question above with the result. Also, try powering off then connecting the drive, then powering on. – darth_epoxy Feb 09 '22 at 10:13
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    If Windows fast start up is on, then it set hibernation flag. You now can only manually mount read only. Go back to Windows turn fast start up off & safely unmount. But you should not be using NTFS for any Linux backup as ownership & permissions are lost. You many be able to reset on data only files. https://askubuntu.com/questions/843153/unable-to-mount-windows-10-partition-it-is-in-an-unsafe-state & https://askubuntu.com/questions/145902/unable-to-mount-windows-ntfs-filesystem-due-to-hibernation – oldfred Feb 09 '22 at 16:58
  • I plugged in the drive again last night. And the behavior stopped. I can see all the files and all the data. I did run these two commands.

    df and ls /dev

    I am not certain why this works now. I had changed nothing what so ever. It is just that time had simply passed.

     – M. Giannak Feb 10 '22 at 12:27
  • and I had both of these listed.. /dev/sda1 /dev/sdb1 – M. Giannak Feb 10 '22 at 12:32
  • BTW the most current version is 20.04.3 You might consider doing an update-upgrade – David Feb 10 '22 at 16:14

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