Light slowly flashing on external hard drive


New Member
A new WD Elements portable hard drive has been plugged into a USB 3 port on a Linux desktop.

The hard drive does not appear on an fdisk -l
listing. The small light on the drive is slowly flashing.

What is happening ? Why doesn't the drive appear in the fdisk listing ?

Is the system trying to automatically mount the hard drive ?

Is the USB port underpowered ?

I hesitate to unplug the hard drive while the light is flashing in case this corrupts the filesystem
on the hard drive.


Staff member
What do you have under lsblk? You should at least see it in dmesg as a device or in parted


New Member
This problem has now been extended with further details in thread 'problem with USB 3 port' in
motherboards forum.