I was just reading an installation instruction for raspbian https://www.raspberrypi.org/documentation/installation/installing-images/linux.md
when I read this command
dd bs=4M if=2020-02-13-raspios-buster.img of=/dev/sdX conv=fsync
I understand this command, conv=fsync, ok we're coying metadata. My question or concern is that for a fresh install, why would I want or need meta data. Which metadata specifically. What data is getting passed along? I know this command would work just fine without conv=fsync, Im just curious what it is the Author seems to think I need to pass on using this argument.