HOW TO MAKE A BOOTABLE SLACKWARE ISO IMAGE

To make a bootable Slackware install image, use the make-slackware-iso.sh
script found in this directory.

For example, to generate a standard install ISO in /tmp, use this command:

./make-slackware-iso.sh -s .. -t install

To make a minimal installer image that doesn't include the source or packages
(and is thus very small and fast to write to a USB flash drive), specify a
"minimal" type instead of "install":

./make-slackware-iso.sh -s .. -t minimal

For more information, see:
./make-slackware-iso.sh --help

To write the ISO image to a USB stick use a command such as this (replace
/dev/sdX with the device name for your USB stick):

dd if=/tmp/slackware64-x86_64-install.img of=/dev/sdX bs=1M status=progress

On my system, here's the command I'd use to burn the resulting image to a DVD.
Probably a dual-layer disc would be needed for it to fit.

growisofs -speed=2 -dvd-compat -Z /dev/sr0=slackware64-x86_64-install.img

If your burner is not /dev/sr0, replace the device with the one your
system uses.

I find discs burned at 2x are more reliable than ones burned at higher
speeds, but you may see completely different results depending on media
and burner type. The -dvd-compat option is also used so that a complete
lead-out is written to the media for maximum compatibility.

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NOTES:
  The isolinux/isolinux.boot file will be created on the disc; it's not
  supposed to be in the source tree. I mention this only because so many
  people report the "missing" isolinux/isolinux.boot file as a bug.

  The "-boot-load-size 4" is actually not large enough to hold the isolinux
  boot loader, but many BIOS implementations are broken and will *only*
  accept "4". Evidently many newer, more correct BIOS implementations
  expect this and will continue to load the boot loader file until the
  EOF is reached. Anyway, previous uses of larger values were correct, but
  led to the Slackware ISO not booting on some machines which contained
  broken BIOS implementations. It is my hope that by using the incorrect
  value of 4 sectors that the ISO will boot on most (if not all) machines
  that are supposed to be able to boot from an ISO image.

  I don't know how to create a bootable Slackware ISO on operating systems
  other than Linux, but it should be easy to burn the Linux-created ISO with
  most CD burning software on any operating system.

Enjoy!

 -P.