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vyk2rr/iso_to_usb.md

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Created July 27, 2017 22:02
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Extract ISO image content on USB
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iso_to_usb.md

When attenpting to install a Linux Distro, its common to download the ISO then use a tool (e.g. UNetbootin, Linux Live USB Creator, Universal USB Installer, Live USB Creator) to make a USB bootable with the installer of the distro. This is no the recommended way.

Source

https://wiki.archlinux.org/index.php/USB_flash_installation_media

Prefered method

On OS X

To list USB devices

diskutil list

USB devices will appear as something like /dev/disk2 (external, physical), confirm the desired device by the SIZE if more than one.
Unmount device (replace X with disk number)

diskutil unmountDisk /dev/diskX

Then, to copy the content

sudo dd if=path/to/image.iso of=/dev/rdiskX bs=1m

On GNU Linux

To list USB devices

sudo fdisk -l

Identify device, then run next command, replacing sdX with devices identifier.

sudo dd bs=4M if=/path/to/image.iso of=/dev/sdX && sync
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