[CentOS] 答复: turn bootable USB into bootable iso image

Alan Stern stern at rowland.harvard.edu
Fri Oct 10 18:54:38 UTC 2014


On Fri, 10 Oct 2014, Steve Clark wrote:

> 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?

As far as I know, there is no general way to do this.

It's possible to create a bootable image that is also an valid ISO.  
But the mechanism used by the firmware to boot USB storage devices is 
quite different from the mechanism used to boot from a cdrom.

Still, it's possible you may be able to solve your particular problem.  
A good place to start would be the syslinux package.  It provides
support for booting systems from a variety of media, including DOS FAT
filesystems, Linux ext2/3/4 filesystems, PXE network boots, and ISO
9660 cdroms.

Alan Stern




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