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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