Usage:
  qemu -hda Slack-12-minimal.qcw \
       -kernel minimal-kernel \
       -net nic -net tap,ifname=tap0,script=no \
       -serial tcp::4000,server,nowait 

Slack-12-minimal.qcw.gz
 53MB gziped, 170 expanded
 FS is ext2, 1GB total, 108MB used
 Contains basic utilities and ssh
 NO boot record

minimal-kernel
 2.6.22