how do i create a bootable image using mkisofs

Ghodmode ghodmode at
Fri May 4 14:37:07 UTC 2007

On 5/5/07, Tomoki Taniguchi <tomoki.taniguchi at> wrote:
> I created an ISO image file using mkisofs
> mkisofs -o recovery-dvd.iso /edited-cd-file-dir
> i mounted this under vmware player.
> but the image file doesn't seem to be a bootable image.
> the root dir of the cd contains two files i feel
> are some how related to the issue
> BOOTIMG.BIN: DOS floppy 1440k, x86 hard disk boot sector
> what options do i need to include in the mkisofs command to
> to make the image file bootable?

Hi Tomoki,
    Since you want to make an image of your entire disk, including the boot
sector, I think you're better off with the "dd" command that the others sent
to you.  The difference is that the mkisofs command makes an image from the
files contained on the CD and the dd command makes an image of the device.
I don't know all of the details of how this works, but the part that makes a
CD bootable doesn't show up as a file.  I think that dd will get the
bootable stuff as well as the files.

    mkisofs does have a way to make a bootable image, but I don't think it
would be the same bootable image that the CD currently has.  You can play
with it if you want to, then post your results here :)  The details are in
the man page.  Just search for the word boot.

-- Vince
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