reboot in other OS

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hail list! I've noticed from kde login screen that i can reboot in other OS ..or other image ...according to lilo! My question is how can i do this from command line? Many 10x! -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iEYEARECAAYFAj9vXCYACgkQPynneORQaDE+7gCdEACmo6F167lH+iInS/o582K0 LYEAn0cXqivokNpuGNk6GMl56E6cmJsK =umTc -----END PGP SIGNATURE-----