RAID1 does not boot

[Muhammad Yousuf Khan <sirtcp@gmail.com>]

Dear All,

i am a newbie, i tried RAID 1 installation on VM which was working
fine. now i tried to install the same scenario on physical machine. i
have two 300 GB Hard drives and i want to make a RAID1 every things
work perfectly. i created the RAID partition and then RAID device. i
created 3 partition on the RAID drive.

1./boot (1GB)
2.SWAP (not on RAID)
3./Root (300 GB)

now everything when fine to the end of the installation but the
problem is when i restart the machine after installation. it doest
boot however in VM machine it didn't happen.
but one thing i notice during installation it is giving me the message
"the Kernel was unable to re-read the partition table on /dev/md0
(invalid argument) this means Linux won't know anything about the
modifications you made until you reboot you should reboot you computer
before doing anyting with /dev/md0.

 i tried Squeez 6.0.4 and
Lenny  several times and at the end  no-success.

kindly  Help!

Thanks,

MYK