On 10/10/2014 11:19 AM, 沈焕标 wrote:

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

Sent from my Windows Phone ________________________________ 发件人: Steve Clarkmailto:sclark@netwolves.com 发送时间: ‎2014/‎10/‎10 21:42 收件人: CentOS mailing listmailto:centos@centos.org 主题: [CentOS] turn bootable USB into bootable iso image

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,

-- Stephen Clark

I don't think you understood what I said. I have a bootable usb key that I want to turn into a bootable iso image - not how to boot it.

On 10 October 2014 @15:19 zulu, 沈焕标 asked:

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

Any ideas?

If none of the methods given so far work for you (that troubleshooters.com link from SilverTip257, which tells how to convert a 'dd' copied file to an ISO using mkisofs, looks promising), here's a method to do it in windows (or WINE, else I wouldn't bother posting it to this list), using the free ImgBurn program (imgburn.com)...

1 - with the bootable stick plugged into the computer, start ImgBurn 2 - click on "Create image file from files / folders" 3 - in "Sources" browse to your USB stick 4 - for "Destination" choose where to save the ISO image 5 - on the Advanced tab choose "Bootable Disk" and check the "Make Bootable Image" (also set Emulation Type as 1.44 floppy) 6 - in the "Boot image" dialog browse to the file "etfsboot.com" (or whatever image your USB stick uses) that should be in the "boot" folder on the USB stick 7 - in the field "Developer ID" put e.g. "Microsoft Corporation" and enter "07C0" in the "Load Segment" field 8 - enter '4' in the 'Sectors To Load' field if your etfsboot.com file is 2K in size, enter '8' if it's 4K (i.e. size of the /boot image file in bytes divided by 512).

So, it's fairly straightforward as long as you change the emulation type to 1.44 Floppy (most bootable USB's do *not* emulate a floppy disc when booting; 'dd' won't do that for you by itself), and use 512 as divisor of the /boot folder's image file size in bytes when setting the Sectors To Load option.