On Wed, Feb 12, 2020 at 05:02:43PM -0700, Stephen Warren wrote: > Jens et. al., > > If I dd to an SD card (e.g. via a USB SD card reader), is it required to run > sync afterward in order to guarantee that all written data is written to the > SD card? I'm running dd with a simple command-line like "dd if=file.img > of=/dev/sdc". Yes. Or use of=dsync on the dd command line.