Usually if I want to image a CentOS 7 ISO (or any Linux ISO for that matter) to a USB device, I do this via dd as follows

 dd if=CentOS.iso of=/dev/sdX bs=8M

However I've tried this method with a CentOS 7 i386 DVD ISO (available from altarch) and it doesn't work.

When I examine the partition table of the USB device afterwards it looks like this:

# fdisk -l /dev/sdd
Disk /dev/sdd: 3.8 GiB, 4008706048 bytes, 7829504 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

and it will not boot. There doesn't appear to be any bootable partitions.

How can I image a USB device with a CentOS 7 i386 ISO?

  • maybe if you set the partition to bootable on the usb drive it will work – natxo asenjo Mar 26 '16 at 14:53
  • you dd to sdc but you run fdisk on sdd. Are you sure there's no error in that? – Thomas R. Koll Mar 26 '16 at 15:04
  • Sorry if that was confusing, I was just giving an example. – Aditya K Mar 26 '16 at 15:37

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