# mkdir iso mnt
# mount -o loop,ro slackware.iso iso
# cd mnt
# gzip -dc ../iso/isolinux/initrd.img | cpio -i
# cd ..
# umount iso
# mount --bind /dev mnt/dev
# mount --bind /proc mnt/proc
# mount --bind /sys mnt/sys
# mv slackware.iso mnt/root/
# cd mnt
# mkdir iso
# mount root/slackware.iso iso
# cd ..
# chroot mnt
# export PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/lib/setup
# fdisk /dev/sda
# setup