Formatting USB drive with disk utility error 'One or more partitions are busy on /dev/sdc'

Asked by RayArdia

I get this error when trying to format USB drives using Disk Utility. What can I do so that drives are formatted?

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English Edit question
Status:
Solved
For:
Ubuntu gnome-disk-utility Edit question
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Solved by:
marcobra (Marco Braida)
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Best marcobra (Marco Braida) (marcobra) said :
#1

Be sure you are not using the usb device so please umount using nautilus left pane then retry...

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RayArdia (theallinsons) said :
#2

Thank you, the word 'unmount' was the critical one!