Q: applemac pro wont boot in safe mode, verbose mode, install DVD, NOTHING

Hi Steve,

Have you done/can you do a PRAM reset, CMD+Option+p+r...

http://support.apple.com/kb/ht1379

In fact, do 3 in a row, takes a bit of time.

Does it boot to Single User Mode, CMD+s keys at bootup, if so try...

/sbin/fsck -fy

Repeat until it shows no errors fixed.

(Space between fsck AND -fy important).

Does it show boot manager if you hold alt or option key at bootup?

Intel-based Macs: Resetting the System Management Controller (SMC)...

http://support.apple.com/kb/HT3964

Sorry if you tried all these, just trying to be sure.

Please explain:

"will not boot from Target Disk Mode (can access this but it won't accept the password). Tried everything I know except booting from another mac"

Target Disk Mode is often used to access a sick Mac's disk from a working Mac.

Steve cheetham wrote:

 

Hi Neville, If you hold down the  "Alt" (UK term! Ha) on start up (MacBook Pro) you can enter a password and choose which Disk to use as Start up. I 100% know this password but the machine now refuses to accept it. Maybe " target disk" is an incorrect title.

There is something wrong with your description.

Holding the alt or option key at boot should allow you to select a volume without entering a password. The request for a password come later.

If you want help you will have to try to be more accurate.

Steve cheetham wrote:

 

Hi BDAqua, Please don't apologize as I am open to any suggestions. Yes I have tried PDRAM, SMC you name it resets, but unfortunately no keyboard inputs seem to be recognized and never has on this machine (something I meant to investigate but you know how it is, mmmmm hindsight! Ha)

What is PDRAM?

Are you saying that you cannot reset PRAM as follows?

1. Shut down your Mac.
2. Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
3. Turn on the computer.
4. Press and hold the Command-Option-P-R keys before the gray screen appears.
5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
6. Release the keys.

If not please explain exactly what happens.

Steve cheetham wrote:

 

Oh and Neville, I have used Macs for years but never dared to boot from another machine for fear of affecting aforementioned (or never had a FireWire cable to hand) What a wimp ha.

Please look up 'Target Disk Mode' on Google and print out the instructions. If your Mac has FireWire you should try and find another Mac with FireWire and a FireWire cable compatible with both Macs so that you can use Target Disk Mode if necessary.

What Mac equipment do you have access to?

Do you have important data on your Mac which has not been backed up to an external disk?

Have you tried inserting the original install DVD and booting with the c key down?

Please say which Mac and OS you have.

Have you ever set a firmware password?

Steve cheetham wrote:

 

Hi, I have access to a MacBook running something like 10.6.3 but at the moment no FireWire cable. I do have important data on the machine but it is partitioned and safe. Yes I have tried booting from DVD but it refuses to start from this disk no matter what keys I Hold down. In other words it does not react to any keyboard input except the option key, admitted this is the first Mac I have ever come across with this problem and this I something I should have investigated whilst everything was fine but never got round to it.

No data is safe if you cannot access it.

Do both Macs have FireWire ports and do they have FireWire 400 or 800?

Try another keyboard.