if you didn't run 'update-rc.d -f xdm remove' and cannot login by X system hazard, then look this page
'http://scratchpad.fc2web.com/colinux/install/install-7.html'.
You will be able to login with single mode.
Edit -c xxxxx.xml file. It has bootparam section. Add 'single' as the member of params.
Next you can login coLinux.
