Idea: “hybrid” Iso Images?

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In order to create a bootable CentOS installation USB thumb drive, there are several steps one must follow.  The process often involves using a Windows box, which can be kinda annoying.

The Linux Mint distro has what they call a “Hybrid” iso image.
 (see:   http://community.linuxmint.com/tutorial/view/744 )

This image can be written to a thumb drive and used for installation simply by performing:

# dd /path/to/image.iso of=/dev/sdb
  (where /dev/sdb is the thumb drive device).

This thumb drive can now be booted and used for installation. The same image.iso file can be written to CD/DVD to create the installation media as well.

Is this a complicated ISO build process?  I’m frequently installing to systems without CD/DVD drives, so this would come in handy.

Thanks!

Regards, Joseph Spenner

4 thoughts on - Idea: “hybrid” Iso Images?

  • i definitely had the same experience back then. Anybody had luck with simply dd a current CentOS iso. I wonder if RedHat supports ISOHybrid?

  • From: Rob Townley

    To: CentOS mailing list
    Sent: Thursday, January 30, 2014 8:54 AM
    Subject: Re: [CentOS] idea: “hybrid” iso images?

    i definitely had the same experience back then.  Anybody had luck with simply dd a current CentOS iso.  I wonder if RedHat supports ISOHybrid?

    I have yet to EVER get that to work. The closest I get is have it start the boot/install process, then ask where the media/itself is.  It forgets, and can’t find the install media– even though IT IS the install media.  I’ve never figured that out.   But, it is what it is.  It does work nicely with the debian distros, such as Linux Mint though.

  • Nope. I succeeded once by manually installing grub after an install. I
    have an external DVD R/W that a basically only use for installing CentOS.

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