I have a copy of the Slackware 64 bit dvd installation iso. I've burned this image to a dvd and used it to properly install the distro. I wanted to try also having this image available on a usb flash drive. I divided a 32 GB drive into two partitions: 1, about 22 GB for data; and 2, about 10 GB for messing around with installers (set as bootable). I dd'd the contents of the installation iso to the bootable partition on the flash drive. However, when I tried booting from the usb installer, I was greeted with a message about not being able to find an operating system.
I've previously installed Slackware to a bootable partition on a flash drive and had it properly boot on different machines. This time around, I'd like to have the installer rather than an installed system though.
What am I doing wrong?