Tuesday, August 13, 2019

Windows Disk Management can't format external hard drive with Linux installed

I installed a Linux distro on an external hard drive mounted on a USB 3.0 adapter. I could boot from the external hard drive before disconnecting the adapter from my computer. Currently the external HDD:



  • doesn't show up in BIOS/UEFI settings (and as a consequence I can no longer boot the Linux operating system from the BIOS menu),

  • doesn't show up in Windows Explorer,

  • shows up in Windows Disk Management utility, but none of the partitions can be formatted.


How do I make this external hard drive useful again by either:



  • making it detectable from within the BIOS/UEFI settings and menu, or

  • formatting it as an external storage device?

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