Option key shows Win partition, can't start it

Greetings all.
I have 10.6.8 and Win7 64-bit installed on internal iMac HDD.
When I attempt to access the Win7 partition on startup using the option key, it shows the list of boot devices, Mac and Windows, but selecting the Windows partition does nothing. The screen stays on the grey selection screen and will no longer accept keyboard or mouse inputs.
If I select the MacOS partition on startup, it boots normally.
If I select Win7 in the Mac Systems Preferences as the Boot Device, the machine goes to a grey screen on reboot and stays there.
If I use Boot Camp assistant to launch the Windows installer, the Win7 partition boots normally. If I select Win7 in the Windows Control Panel and reboot, Windows boots normally.
Two changes were made to the system recently. I updated to 10.6.8 and then the next night, Windows7 Service Pack 1.
Any help would be appreciated.

It it were me I would try to start from the Windows 7 installation disk and use Startup Repair. It worked for me when I had a startup file that was corrupted.
http://windows.microsoft.com/en-US/windows7/Startup-Repair-frequently-asked-ques tions
Startup Repair is a Windows recovery tool that can fix certain system problems that might prevent Windows from starting. Startup Repair scans your computer for the problem and then tries to fix it so your computer can start correctly.
Startup Repair is one of the recovery tools in the System Recovery Options menu. This set of tools is located on your computer's hard disk and on the Windows installation disc.

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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.
My main drive has OSX 10.4.11 (#1), and it is backed up to Baracuda #2 (400GB) which is a slave to my Main drive (using SuperDuper All files for a mirror bootable copy). The 3rd drive has Leopard 10.5.1 for learning and trying Leopard.
On the second PCI slot is the smaller 200GB Baracuda.
After backing up using SuperDuper (Main to #2) as a mirror, I see #2 in the Apple > Prefs > Start Up Disk.
After the first backup I can see all 3 drives when using Option key at startup, but instead of seeing the names of each drive under the normal hard disk icons, #2 has a SCSI icon underneath the hard drive icon, it's name (Mac BU) is missing and I can't start up to it. The other #1 and #3 looked as expected. I chose #1, it launched, fine.
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I selected #3 Leopard in Prefs > Start Up Disk, restarted OK.
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!
Nervously, I chose #3 with Leopard and the G4 started up to it OK.
I then reselected my Main #1 drive in the Start Up Disk panel, restarted to #1 OK.
OK, problems summary:
1) I can't use SuperDuper to create a blessed bootable #2 drive at Option start up, but I mention this for more info about a possible problem at Option startup, more than I want comment on SuperDuper potential bug / conflict.
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.
2) When I start up either of #1 or #3, I get momentary black screens after the gray apple screen at Option key start up and then again after the apple progress bar. This doesn't happen when I start up directly either drive when the drives are selected using the Start Up Disk panel
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Thanks, in advance,
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Hi Dave.
Well... good news / bad news
Turns out, I have an Acard 6280M and have 3 drives connected to it as mentioned (#1 & 2 are mirrored using SuperDuper with 10.5.1, #3 is a clean install off a new Apple OSX disk 10.5, then updated to 10.5.1)
I also have a Firewire external drive, that I used SuperDuper to make it a mirror of #1, using the same procedure backing up #1 to #2, to test SuperDuper.
The firmware update directions tells you to start up off a drive not on the PCI card, I used #4.
While running off #1, I selected #4 in the Start Up disk pref and it booted OK! This seems to rule out SuperDuper being the problem - of creating a mirror from #1 to #2 (both on the Acard) and then not seeing #2 in the Option key boot screen.
I applied the firmware, which directs you to first update the Acard driver to 2.06, which is included in the folder with the firmware updater.
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I then applied the driver upgrade to drives #1 and #2 (10.4.11) while running off #4. I did not apply the driver update to #3 (10.5.1) and restarted, using Option key.
All 4 drives appeared successfully on screen as expected with their names!
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#1 = kernal panic. Hard shut down, used Option key again
#2 = kernal panic, same as #1
#3 = froze at gray Apple screen - no spinning gear. Hard shut down.
Tthankfully, left Start Up disk pref to be #4 external and on restart, let the system boot off without going to the Option screen. #4 booted OK. Whew...
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?
Two things I've not tried:
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2) Selecting any of #1, #2, or #3 drives in Sys Prefs and restarting without Option key selector.
My fear is that if my last working drive #4 isn't the default drive set in Sys Prefs, if Acard isn't the problem alone and there is also a problem selecting any drive using the Option key - even #4, then if #4 isn't the default and all 3 Acard drives panic on regular boot (non-Option key) and I have to hard restart, will keep defaulting to whatever drive I set in the Sys Prefs and not be able to get back to #4.
Should I just go to my local computer store and see if they have a newer model PCI card and trash my existing one as I may have ruined it with the firmware updater?
Thoughts?

Winxp is gone when pressing option key at startup, "no bootable device"

Hi everyone,
I'm new to mac and recently bought a MBP.
I did bootcamp and installed windows xp and SP3 at the same time in a small partition, I remember it was 8gb.
I had no problem booting in to xp or mac after the installation, I can even press option and see both OS.
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Message was edited by: nobutan
Message was edited by: nobutan

Thanks fortuny,
I had read the link you suggested. And since my partition for windows is FAT32, as noted in the website, I can edit the boot.ini directly in my mac. In my mac, it already shows that the partition # is 3,
[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(3)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(2)\WINDOWS="Microsoft Windows XP Professional" /NOEXECUTE=OPTIN/fastdect
but my window os is not booting.
Like the link noted, "it crashes with the "I'm sorry, we couldn't start up Windows. Do you want to start in Safe Mode?" screen. You'll also see a flicker of the BLUE SCREEN OF DEATH, which flashes an UNMOUNTABLEBOOTVOLUME error so quickly you won't have a chance to read it. This was the hint that the BOOT.INI entries were incorrect..."
According to the boot.ini in the site, my boot.ini file was already set up correctly, so why can't windows startup?
Also something I don't understand from this:
"NOTES: If you didn't follow the instructions and chose to PARTITION the existing volume instead of RESIZING then ADDING a partition, this appears to mess up BootCamp's boot loader and you may have to start again. Step 3, however, may offer you a way out."
When I did the 3rd partition, I did it in Disk Utility in mac, not from the mac os cd, and I split the mac partition into 2, I didn't do the "resizing," then using the unused space to make new partition... I wonder if this is causing the normal booting...
So do I start again by deleting my data partition or start from reinstalling windows? If the problem can be fixed without installing windows, of course, it would be great.
Message was edited by: nobutan

No bootable device insert boot disk and press any key... how can this threat be solved?

Hello guyz,
i have tried all the solutions proposed here on this forum to this threat but still havent got any sweetable results. it's even worst than i thought. even when i try to reinstall or delete/repartition, it doesnt work coz there is no partition found. itz completely empty. each time when i get to the disk utility it becomes worthless coz i cannot use it.....i really dont know what to do at this moment.....any ideas?
i still have windows 7 installed on my mac book pro !!! everythiing was working very well until i started getting this 'no boot device found...please insert bla bla bla.......' message when i did turn on my laptop......i am really afraid of loosing my stuffs on the windows system.......
thanks for any help
fru

Hi Babowa,
thanx for the reply .... backing up is my problem .... how can i backup evverything if i can not bootup to windows nor mac OX? ... i have no access .... or is there a way to do it? then please let me know ... i would be really grateful ...
Once again: i can not access windows 7 or mac OX ... i get stuck at the Utility tools after pressing and holding down the option key ... i can access the different options there but like i said before, there is no partition or operating system to repair or reinstall or even delete....there is nothing at all....seems as if it just disappeared ....
i m short of ideas ....

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