[CentOS] Install CentOS with degraded raid

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi all!

I'm making a text mode installation of CentOS 5.5 on a single disk on
which I intend to put a software RAID-1 degraded, thinking of adding
another disk later on.

But if I try to make the installation in a RAID-1 with a single disk,
the system does not allow it. There is any way to do it?

Thanks in advance for your replies.

Regards,
Daniel

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)

iEYEARECAAYFAkxtmTAACgkQZpa/GxTmHTeoZACePFQ5FYVrQZkbqRUsVwXHJ073
rlYAn2UNupZ24wHd0AfsPwRoXsZbcQuM
=cTyl
-----END PGP SIGNATURE-----