When creating a bootable USB disk of Linux Mint / Uibuntu using usb-creator , an annoying error that manifests once Linux Mint is booted from the USB drive is the following :
“can not mount /dev/loop1 on /cow”
Once this error pops up, the installation halts.
The workaround for this error is to make the USB bootable version of Mint with the option of “Discarded on shutdown, unless you save them elsewhere” enabled.
Note : This is a confirmed bug and mostly affects installation on netbooks but we did face the same error when trying to install on a desktop system, the above workaround made the installation successful.