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HowTo use dd to write a disk image/iso to USB on Linux
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howto-use-dd.md

The UNIX utility dd is actually inherited from VMS, hence the opt=arg instead of --opt=arg syntax.

Here we write the input file (if) to the output file (of), using a larger block size (bs) than default (512 bytes). We'd like to see the progress of the write, this is not the default, and we want to avoid caching in the Linux VFS, so we set output flag (oflag) to direct, i.e. write-through.

sudo dd if=linuxmint-20-cinnamon-64bit.iso of=/dev/sdb bs=1M status=progress oflag=direct

Watch out, check the output file (/dev/sdb) matches your USB stick, otherwise you'll kill all the kittens!

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troglobit commented Nov 17, 2022 •
edited

Flashing sdcard.img built with Buildroot:

sudo dd if=output/images/sdcard.img of=/dev/mmcblk0 bs=1M status=progress oflag=direct

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