答复: turn bootable USB into bootable iso image

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CentOS 5 Comments

ctrl-d to settings，than you can see the CDROM, choose to use the ISO image file.

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Turn Bootable USB Into Bootable Iso Image

Home » CentOS » Turn Bootable USB Into Bootable Iso Image
CentOS 4 Comments

Hello List

I have a Bootable USB stick that we use to Boot our servers and then install CentOS, PostgreSQL and our SW thru a Kickstart script.

It works like a charm but now we are thinking of going Virtual and prepping Virtual CentOS servers under VMware ESXi.

However, to have the same “Boot and Install” functionality I see no other solution than Booting a VMware machine from an ISO.

So, what I would like to do is to take the Bootable USB and make it into an ISO.

Any ideas?

Thanks,

4 thoughts on - Turn Bootable USB Into Bootable Iso Image

  • install CentOS, prepping Virtual CentOS servers under VMware ESXi. solution than Booting a VMware machine from an ISO. an ISO.

    Hi,

    Not sure whether the following will work, but just a thought.

    Create an .img file from the usb by doing a ‘dd’ from usb to .img file. Then attach the .img file to the vm as a disk and then boot the vm from the disk image to start regular kickstart installation.

    Thanks & Regards, Aravind

  • I’d expect this process would be nearly identical to cloning a floppy and making a CD image of it. A number of years ago now, I converted proprietary boot floppies to ISO
    images (ex: a disk wiping program and a Win98SE boot floppy for updating BIOSes). Thank goodness for FreeDOS and BIOS updaters that are largely compatible (if you find the right ones from the manufacturer).

    So yes, use dd and mkisofs are the tools for the job — as detailed [0]

    [0] http://www.troubleshooters.com/linux/floppy_image_on_cd.htm

  • have you tried something like k3b? plug the stick into a machine and the create an iso rather than burn a disk from the image.

    I’d suggest the ‘right’ way is to dig into the USB drive process, find out what all its doing to get the install going the way you want/need and then convert it into a pxe/net install. then it should work for both vms and physical hardware and you’ll have working knowledge to change/update it and have more available images.