I want to write an ISO without a partition table to an USB stick

Question

So, I have an ISO that I want to write to a bootable USB stick. The problem is that the ISO does not have a partition table. From my understanding, this type of ISO should be written on a DVD. Can I write my ISO to my 8GB USB? I also tried it via "dd" and it did not work.

Edit: I tried it in Virtualbox and it worked. It means that the image is bootable.

Edit: Maybe add a partition table to the ISO?

Yes, you need to convert the plain ISO image into a Hybrid ISO image. See https://superuser.com/questions/410305/what-is-the-difference-between-the-usb-booting-mechanism-and-optical-disk-bootin — sawdust, Jun 22 '19 at 09:23
Unfortunately, the ISO is not Linux or BSD. It's a MacOS ISO. Still Unix-like, but it gives me this error: `bob@I-am-Bob:~/Downloads$ isohybrid OSX-Mavericks.iso isohybrid: OSX-Mavericks.iso: boot loader does not have an isolinux.bin hybrid signature. Note that isolinux-debug.bin does not support hybrid booting` — stfn, Jun 28 '19 at 06:48

score 0 · Answer 1 · answered Jun 22 '19 at 09:06

0

try the following:

In FreeBSD:

dd if=./your-DVD.iso of=/dev/da0 bs=1m conv=sync where da0 is the USB stick

In Linux:

dd if=./your-DVD.iso of=/dev/sdX bs=1m where X is your USB stick.

NOTE the easiest way to discover which device name corresponds to your USB stick would be to perform an ls /dev before, and after inserting your USB stick.

answered Jun 22 '19 at 09:06

somebody

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I will try it now, thank you – stfn Jun 22 '19 at 09:09
Got an error: dd: invalid number: ‘1m’. Here is a screenshot https://ibb.co/jys8pxv – stfn Jun 22 '19 at 09:12
Btw, to discover the name of the usb, cannot I use "sudo fdisk -l"? – stfn Jun 22 '19 at 09:13
Possibly. I only suggested using `ls /dev` before, and after. Because it was the simplest solution to discovering your USB device I could think of. :) – somebody Jun 22 '19 at 09:16
And about my error? – stfn Jun 22 '19 at 09:16
Oh I got it. It should be "1M" not "1m". And you should run it with sudo. – stfn Jun 22 '19 at 09:21
`CDFS` *is* a file system of it's own. You need not be concerned about "slices', or "partitions". It creates an Index table for any of the `CD` standards (file systems) it was created with. Given your success vs. failed attempts. I would suspect that your VBOX was written *correctly* whereas your other attempt was not. :) – somebody Jun 22 '19 at 09:21
Definitely with `sudo`! :) – somebody Jun 22 '19 at 09:22
Thank you for your attention! – stfn Jun 22 '19 at 09:23
My pleasure! :) – somebody Jun 22 '19 at 09:24

I want to write an ISO without a partition table to an USB stick

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