A systems administrator needs to prepare a USB stick as a startup disk using the distribution image stored at /home/sysadmin/distro.iso. The USB device is represented by /dev/sdc and has no partitions. Which command will produce a firmware-recognizable boot device?
The dd utility copies the entire disk image—including its partition table and bootloader—to the raw device, making the stick bootable. Writing to a partition (/dev/sdc1) excludes the MBR/GPT and bootloader. Using cp or mounting and copying files transfers only file contents and omits the disk structure needed by firmware.
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What does the 'dd' command do in Linux?
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What is the difference between /dev/sdc and /dev/sdc1?
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Why is the 'conv=fsync' option important in the dd command?