I cannot boot up my MacBook Pro from CD

[Rugbyplayer]

Can anyone tell me if there's some secret to booting from a CD?
I insert the CD (in this case Disc Warrior 4.1 for OS X, also happens with Drive Genius), hold down C during start up...I get the Apple logo, then the machine just shuts down and reboots - over and over if I keep the C down.
Is there something else I need to do, or do I have an optical drive problem?
MacBook Pro, 2.6 GHz, duo. OS X.5.5

 

[SnowLeopard2008]

You can only boot from the grey restore disks if I remember correctly, someone please correct me if I'm wrong.

 

[Catch Them]

Can anyone tell me if there's some secret to booting from a CD?
I insert the CD (in this case Disc Warrior 4.1 for OS X, also happens with Drive Genius), hold down C during start up...I get the Apple logo, then the machine just shuts down and reboots - over and over if I keep the C down.
Is there something else I need to do, or do I have an optical drive problem?
MacBook Pro, 2.6 GHz, duo. OS X.5.5

is the disk clean and fairly scratch free?

try holding down the option key at boot instead of C

either method should work and may take a bit of time for it to load up properly, upto roughly 10 minutes for the boot up sequence to go through.

But try option as a second resort.

**
also try resetting the PRAM and SMC ... could be miscommunicating somewhere , otherwise try with your install disks to see if they load up, if so maybe need to create a new DW4.1.1 disk
otherwise try to go into system preferences and select the DVD drive as the start up drive instead.


hope these help

 

[Rugbyplayer]

Thanks for your reply. Its a brand new disc, right out of the box. I tried all your suggestions but none work.
The option key solution gave me the two start up disc options, but when I selected the CD, it ignored it and booted from the HD.
The original OS X Leopard disc was recognized and the MacBook booted up from it, but I'm really wary about re-installing anything from that disc. I'm not that technical, and I just can afford to lose stuff.

 

[Blue Velvet]

NOTE: The current DiskWarrior DVD cannot start up the new MacBook/MacBook Pro/MacBook Air models introduced on 10/14/2008. An updated disc that will also start up these recent Mac models will be released as soon as Apple, Inc. releases new startup files to Alsoft, Inc. and other developers.

http://www.alsoft.com/DiskWarrior/requirements.html

 

[ntrigue]

I'm not familiar with Disk Warrior but it seems clear that you must boot from Leopard OS X using the aforementioned 'c-key.'

 

[sickmacdoc]

http://www.alsoft.com/DiskWarrior/requirements.html

Just to add one note to what Blue Velvet posted, when you read the linked material if you look closely they have a link in it as to how to use DW with a system that the disk cannot boot successfully. Easy to overlook that so just wanted to mention it.

 

[Thomasnatal]

Did you find a solution?

Hello Rugbyplayer,

Did you (or anybody else) find a solition for this problem? I am having exact the same problem. I can not start from any disk, tried it from Leopard, iDisk, etc. Te machine just shuts down and reboots - over and over ....

Thank you in Advance!!!

 

[Rugbyplayer]

Start up from CD

Hi, Thomasnatal:

I did eventually overcome the problem, but I can't really tell you how, as it was through some random, frustrated, combination of holding down certain keys on start up. I think I held the "C", the control key and the option key for quite q while through the apple logo stage etc., but I couldn't swear to it.
The usual rookie, non-tech solution!
Sorry I can't be of more help.

 

[Thomasnatal]

Hello Rugbyplayer,

Thank you for your answer. It is really a frustrating situation. I will try to press the "right keys". Wish me luck!

Thank you again,

Thomas

 

[macbokpro]

If MacBook Pro wont start

I had a problem where my Macbook Pro would not start. All that would happen was that it went to a grey screen with the apple in the background and the circle swirling.
After many hours of frustration, I pressed SHIFT and COMMAND and V during the start-up and it finally worked! Pressing 'shift' and 'command' and 'v' is the equivalent to the safe boot in Mac, and it worked. I hope this helps people who cannot start up their Macbook Pros.
Max uses cheap hardware, and I will never purchase a mac again.

 

[cookies4all]

Ok , this is my first post, but...

You do know this thread is very old, right?

 

[Mal]

Don't worry, he's just a troll (look at the last line). He's wrong too, only the Shift key prompts Safe Mode, Command and V simply trigger Verbose mode, which allows you to see the system prompts as the computer boots (in a text-based layout).

jW

 

[cookies4all]

Oh, I should have read more carefully. And it seems he only joined to post that.