CentOS - Jun 2018 - Slightly OT : write bootable CentOS USB disk under Windows 10 and Mac OS X ?

Hi,

I'm currently writing my fourth book about Linux, for the french editor
Eyrolles. The book will cover Linux server basics for pros, and it will
be based on CentOS 7.

I have a quick question to those of you who use either Windows 10 or Mac
OS X as their everyday desktop system.

How do you write a bootable CentOS USB disk using either Windows 10 or
Mac OS X ?

I've googled this, of course, and there's quite a lot of possible
solutions out there, so I'm curious about a more or less *orthodox* way
of doing things.

Me, I've been 100 % GNU/Linux since 2001, CentOS is running on my
workstation and on my laptop, and I'm simply writing the ISO file to a
USB stick using dd if=CentOS-XXXX.iso of=/dev/sdX.

Thanks & cheers,

Niki
-- 
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> On Jun 7, 2018, at 11:39 AM, Nicolas Kovacs <info at microlinux.fr>
wrote:
> 
> Hi,
> Me, I've been 100 % GNU/Linux since 2001, CentOS is running on my
> workstation and on my laptop, and I'm simply writing the ISO file to a
> USB stick using dd if=CentOS-XXXX.iso of=/dev/sdX.
I tend to do the analogous thing on the mac, except for converting the image
first:
	https://www.lewan.com/blog/2012/02/10/making-a-bootable-usb-stick-on-an-apple-mac-os-x-from-an-iso

On Thu, Jun 7, 2018 at 10:39 AM, Nicolas Kovacs <info at microlinux.fr>
wrote
>
> How do you write a bootable CentOS USB disk using either Windows 10 or
> Mac OS X ?
>
> I've googled this, of course, and there's quite a lot of possible
> solutions out there, so I'm curious about a more or less *orthodox* way
> of doing things.
>
> Me, I've been 100 % GNU/Linux since 2001, CentOS is running on my
> workstation and on my laptop, and I'm simply writing the ISO file to a
> USB stick using dd if=CentOS-XXXX.iso of=/dev/sdX.
>
For macOS you can use dd as well, but you should use the raw device instead
of the buffered one. So, if your drive is set as disk2 (checked by running
'diskutil list') instead of /dev/disk2 you would use /dev/rdisk2 as a
target. Also not that the units used by the bs flag are specified slightly
differently, as lower case characters, ie. bs=1m instead of bs=1M

On Thu, Jun 7, 2018 at 10:44 AM, Noam Bernstein <noam.bernstein at
nrl.navy.mil
> wrote:
> I tend to do the analogous thing on the mac, except for converting the
> image first:
>         https://www.lewan.com/blog/2012/02/10/making-a-bootable-usb-
> stick-on-an-apple-mac-os-x-from-an-iso

If you are using dd then there is no reason to convert the file.