Special device UUID does not exist

Q. I'm trying to mount a drive using UUID, but I get the following error: 

 

mount: special device /dev/disk/by-uuid/87470c42-4b34-475c-86d0-bf0df06d4f3c does not exist

 

A. You've just created the new partition and the OS doesn't see it. You can either reboot or run the following command 

sudo partprobe