Please give some advice !
How can I create a bootable CompactFlash Card ext2 formatted

Sistem configuration
Laptop IbmThinkpad T22
- No internal idehdd
- No usb hdd boot bios
- hub usb 4x
- One external usb harddrive with knoppix hdd install on /dev/sda1 / and /dev/sda5 /home
- cdrom ide /dev/hdc
- card reader usb
- CompactFlash Card 128M ext2 formated

can I create a /boot on CF and use for booting? How I do that?
can I grub boot the hddKNX using KNX cd and CF mounted /boot ?