Installing OpenBSD-current with an older version CD

MY setup first: my good ole trusty Thinkpad T22, a 4.9-release install CD and the need for -current. I booted from the CD, chose HTTP as the install source and changed the location on the server from something like OpenBSD/4.9/i386 to OpenBSD/snapshots/i386. The installer will initially find only the kernel and the ramdisk: install them, ignore the errors, be patient and reboot from the HDD when the installer is done. From the boot prompt, type “boot bsd.rd”, choose Install and install from HTTP, again using OpenBSD/snapshots/i386. Note that this location may differ on certain mirrors. That’s it!