Re: How to create .iso file image of cdrom (atapi)?

From: Lowell Gilbert (freebsd-questions-local_at_be-well.ilk.org)
Date: 01/07/04

  • Next message: David D.W. Downey: "RE: Commercial Distribution?" 
    To: freebsd-questions@freebsd.org
Date: 07 Jan 2004 09:44:55 -0500

    Sergey 'DoubleF' Zaharchenko <doublef@tele-kom.ru> writes:

    > Ah, I see, first mount the cdrom, then make an iso from its filesystem -
    > then that's OK, but is seems a little of an overkill, as the cdrom
    > already `contains' the iso. If created your way, the image will not
    > be completely identical to the one on the cd (for example, the boot
    > sectors, if any, will be missing).

    The canonical answer from the handbook is

         Duplicating Data CDs

        You can copy a data CD to a image file that is functionally
        equivalent to the image file created with sysutils/mkisofs, and
        you can use it to duplicate any data CD. The example given here
        assumes that your CDROM device is acd0. Substitute your correct
        CDROM device. A c must be appended to the end of the device name
        to indicate the entire partition or, in the case of CDROMs, the
        entire disc.

        # dd if=/dev/acd0c of=file.iso bs=2048

        Now that you have an image, you can burn it to CD as described above.

    http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/creating-cds.html#IMAGING-CD 

    -- 
Lowell Gilbert, embedded/networking software engineer, Boston area: 
		resume/CV at http://be-well.ilk.org:8088/~lowell/resume/
		username/password "public"
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  • Next message: David D.W. Downey: "RE: Commercial Distribution?"

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