Discussion Cannot see external usb hard drive Ubuntu 20.04 X64


Minimal Tinkerer
Original poster
New User
Apr 28, 2021
Hello all I'm a newbie.

I have an external usb hard drive and cannot find it anywhere in Ubuntu 20.04 I'm running a dual boot windows 7 and Ubuntu 20.04 the drive is fine in windows but it is not listed anywhere in Ubuntu. I have tried to disconnect it and then reconnect it but no luck. If I plug a usb thumb drive in I get a popup that it is recognized. Any ideas or a starting point? The drive is set up as MBR and formatted as FAT32 Thanks !

This system is old one if the problem is not be solved, maybe I should try other system to running Ubuntu ,how about DFI ?


Chassis Packer
Apr 7, 2018
You can check with the 'Disks' application if it is mounted correctly (play/stop icon) but maybe this would be more appropriate in a Linux forum.
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King of Cable Management
Bronze Supporter
May 17, 2016
You can have a look into /media/you_username/ in a terminal if it has already been mounted (unlike Windows, an external disk can be detected correctly but not reachable before it is mounted to a directory)
ls /media/your_username/

If it is not there, to check if it has been recognized, see if you find it in the list of
sudo fdisk -l

You should see something like:
Disk /dev/sdb: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Try to find out your disk by its size.