sudo dd if=file.iso of=/dev/sdc bs=1M && sync to copy yocto iso images to a flash drive. This usually works all the time without issue. Today it stopped working correctly it usually takes a few minutes but it completed in a few seconds. There were no errors messages, nothing in
nmon didn't show any disk activity with
Plugging the flash drive in and out a few times didn't fix the issue. I had to reboot and then it started working correctly.
I don't understand what happened or why. Is there a way to fix the problem without reboot?