Locked out of HDD

[Pritam Baral]

Hello,

In short:
My hdd is locked, but my bios doesnt let me unlock it, cant boot from
live-iso because it gets stuck at the poimt of identifying hdd. Any
way of passing a boot parameter to unlock the hdd first?

In detail:
Firstly, this is not one of those situations where one forgets their
hdd password. I know my password, I just cant unlock it.

My hdd supports the Security Mode Feature Set, though it was not
enabled before. My bios doesn't let me set the hdd password. Somewhere
on another forum I had read that if the hdd password is set, the bios
would ask me for the hdd password. So, I tried setting the hdd
passwords through hdparm. I noticed that my bios sends a
SECURITY_FREEZE at every power-on; unfreezing is easy: sleep and wake.

So, I successfully set the passwords(both master and user) only to
discover that my bios doesn't ask for the hdd password!

So I booted from a Lucid Lynx live iso on my pendrive, but it stops
during the boot spewing endless error messages about ata1.00 so fast
that i can't even read them! I know the password, is there any way to
send the SECURITY_UNLOCK command during the boot process, probably
through a kernel boot parameter?