Disk utility on startup using (option key) is locked

When trying to restore Macbook air disk utility dose not work. I start up using the command+R and the option key and at every time it goes straight to a big lock asking for some password I have no clue of. Please help! I cant get into disk utility to restore. the lock looks like this. Is there any type of password?

You need to supply the computer's firmware password. If you don't know and can't get it, contact Apple.
(85266)

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    Hi artdiva28
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    I have 3 internal drives using a PCI card (2 slots) that allows me to use large drives with more capacity than stock allowance on my G4 Quicksilver 867 mhz 1.5 GB RAM tower.
    All drives are Seagate Baracudas ATA: 2-400GBs and 1-200GB. I bought the 400s at the same time.
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    After backing up using SuperDuper (Main to #2) as a mirror, I see #2 in the Apple > Prefs > Start Up Disk.
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    On second backup, #2 is still in Prefs > Start up Disk panel, but this time doesn't show up on when using the Option key at start up. I have replicated this, but erasing #2, rebacking up twice.
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    I restarted with the Option key (only #1 and #3 show) and now my main drive didn't have it's name only the SCSI icon under the normal hard disk icon like #3 was doing. UGH!
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    I then reselected my Main #1 drive in the Start Up Disk panel, restarted to #1 OK.
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    2) I didn't try choosing #3 in the Start Up Disk panel, as I was affraid the G4 would freeze and then I might not be able to select either of the other #1 or #3 at Option start up as something is wrong with using Option key start up, and #3 would have been selected in Start Up Panel, which I was afraid I might not be able to get to again.
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    Thanks, in advance,
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    Well... good news / bad news
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    All 4 drives appeared successfully on screen as expected with their names!
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    So all 3 drives on the Acard, won't boot. I was concerned it was the 2.06 driver, but since it wasn't applied to #3 Leopard drive, I'm assuming the firmware is the issue and perhaps not compatible with 10.4.11 or 10.5.1?
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    Provide the computer's firmware password. If you don't know what it is, contact the person you got the computer from or Apple.
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