Won't boot to DVD drive.

Hi friends,
Could anyone help me figure out why my iMac will not boot to the DVD Drive while I hold down the "C" key? It just starts-up to my main drive, as usual. I've tried several bootable discs including Tiger Install 1 and DiskWarrior. No dice.
Any clues? Everything else appears to be as usual. I repaired permissions and ran Cocktail. All fine there too. Thank you so much. Dan

Hi Malcolm. You totally helped me solve my problem.
I figured out, through your questioning, that the new 'flat' Apple keyboard I bought came with a disc to alter system preferences and accept the new keyboard.
When I took my computer to the Genius Bar recently, they used a different keyboard.
I plugged in my old keyboard and the restart-"C" worked pefectly. THANKS so much for poking around with me on this. I would have been stumped if I hadn't thought it through, with your help.
Now I just need to figure out how to get another copy of the keyboard install CD- because I've misplaced it. So back to the old keyboard for now. THANKS again, man! Dan

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MS-6728 won't boot from DVD drive?

I have a MS-6728 motherboard with bios v2.5 that won't boot from a bootable DVD disk. Here's what I've tried so far:
- Made sure the DVD drive was the first one in the BIOS boot device list.
- Tried two different DVD drives. One plain DVD drive. The other was a DVD dual layer writer. Both were PATA.
- Booted the DVD from three other machines to confirm it's not the DVD disk. It worked fine on all of them.
- Put the DVD drive from one of the machines that booted it correctly into the MS-6728 machine. That didn't fix the problem.
- Removed all drives except the PATA DVD drive and one SATA hard drive. No luck.
- Booted the MS-6728 machine from a bootable CD. That worked it was a Windows XP Pro install CD.
The DVD is a Debian install DVD BTW. Also I tried it each time by doing the F11 (select boot device) and just letting the BIOS auto detect everything. Each time I see a quick flash of "boot record not found" but I know the DVD is bootable since it worked with three other machines. The DVD was made from a ISO image downloaded from the net. I have booted the machine several times before from CDs.
I'm wondering if the BIOS only supports bootable CDs and not bootable DVDs?
Any ideas would be greatly appreciated.

How many IDE controllers does you board have? If it has more than 2, make sure that the DVD drive is connected to Intel controller and not Promise Controller.

New V245 won't see the DVD drive

I have a new SunFire V245 that won't recognize the DVD drive.
Running probe-scsi, probe-scsi-all and probe-ide don't display a DVD drive.
I know it is getting power because the light blinks when I power up the unit.
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Thanks a ton for the solution Dale! I appreciate it! The solution that worked was to in fact reset the SMC by disconneting the power, removing the battery, holding down the power button for 5 seconds and letting go then, putting everything back together again and powering back up. It then saw the drive and I was able to confirm that the Pink Panther can once again be seen in that drive! Thanks again because now I can use it in front of my treadmill again when I go for a run! lol!
No longer Frustrated_MacbookPro_User for the meantime... (I've had OS issues I've had to deal with before and so I'm never sure if I'm out of the woods yet, lol!).

On boot, both DVD drives eject - any way to prevent this?

when I boot, both DVD drives eject. Not a huge deal, but fairly annoying.

Hi Tim,
Thanks for using Apple Support Communities. It sounds like resetting the computer's PRAM might help with this:
OS X Mavericks: Reset your computer’s PRAM
http://support.apple.com/kb/ph14222
Cheers,
- Ari

New Unibody MBP won't boot from DVD or external drive, just loops

Hey
We bought a new Unibody MBP on Monday, and loaned it to our CTO for a presentation. Having got it back from him now I wanted to nuke the installation and put a fresh copy of leopard on it, so I dropped the DVD in the drive, powered down, and booted holding the "C" key.
I get the chime, screen lights up, thinks for a bit, and if you use your imagination you can almost hear the DVD spin up. Then the screen goes black, lights up, chime, thinks a bit, goes black, lights up, chime and so on
I've tried booting from an external bootable clone I created with CCC (firewire external HDD), and same symptoms.
I even tried swapping in a hard drive that I know has a working bootable copy of Leopard on it, and then all I get is the eternal cycle, without pressing any keys on startup.
I also tried holding down the Option (Alt) key on boot to get the boot device selector. This correctly identifies the various boot devices - the DVD, on-board HDD and external firewire drive (if connected), and lets you select them, tries to boot, thinks, black screen, screen lights up, chime, repeat cycle endlessly until extremely frustrated.
Is there a known cure for this or am I doomed to take the thing back to the Apple store on Monday?
Thanks
Konrad

Raj wrote:
That is not the reason it didn't work. Here is the actual clarity:
*A retail Leopard DVD should be able to boot a new Macbook Pro unibody.*
So you are saying even if the driver for the controller on which the DVD drive sits is not available in the Leopard DVD you are using because the hardware was not manufactured at the time the Leopard release on the DVD was made, the OS should magically just boot? How is that possible? Unibody MacBook Pros have entirely NEW AHCI chipset - for which there won't be any drivers on the older Leopard DVD and as such the DVD wont be detected once the OS on the DVD loads. In cases where the chipset used is same (as in previous generations of MBP) it will boot.
The key difference here is that if you used an older version, some new hardware may not be supported - however, the computer *should still boot from the DVD*, which is the subject of this discussion.
The OP said that his computer boots from the DVD that came with the computer - just not with the old retail Leopard DVD. Also - what should happen if the new hardware happens to be the controller on which the DVD drive is sitting? How will it be able to read the DVD? What about the graphics card? If the drivers on the old leopard disk do not recognize the new graphics card - how is the OS going to display on screen?
On my way home, I stopped at a Mac store and asked them to test this. They successfully booted a new Macbook Pro unibody from an older Leopard DVD. And this is why Apple is replacing my computer, because it is a hardware issue, not a software one.
Again - you fail to understand that whether or not the old DVD boots on a new machine all depends on how much hardware has changed and what hardware has changed. It may boot on some generation of machine because the basic chipset and graphics did not change or were handled generically by the drivers on the older DVD but it may totally refuse to boot on new gen machine which has totally different / incompatible hardware.
So your claim that any old Leopard DVD must continue to boot on any new machine is not really technically explainable.

BRAND NEW LENOVO K300 5316 1BU (WON'T BOOT FROM DVD SUPERJULTI DRIVE/CD-WRITER

Would appreciate info from the Lenovo Community as to what might be the problem and a fix.
I just received my new Lenovo K300 5316 1BU. As one of the first tasks I made a Lenovo Repair Disc.
To test my disc I rebooted my computer with disc in drive. During reboot I pressed F12 to get to the proper menu.
I chose the cd/dvd drive as the first boot option. It showed that the drive was recognized stating Boot Priority but then went directly into my Windows 7 deskop.
I called Tech Support and tried everything with them with the same results.
They instructed me to do a complete System Restore to see if that corrects the problem.
I have not done this yet since I will do a backup of my present setup, not to loose all my hard work and time setting up all my programs and settings.
Before I do a complete system restore I would appreciate any comments or suggestions from the community regarding this situation.
Do you also believe that doing a full system restore will help or should I send this computer back?
I do find it hard to believe that a computer less than a week old would have this problem with the DVD Supermulti Drive /CD writer.
If I still have no success after a full restore or a resolve from the Lenovo IdeaCentre Community then I will return this computer back to TigerDirect.
To conclude I would like to mention the following regarding this brand new Lenovo K300 5316 1BU top of the line desktop computer.
One of the reasons I purchased this particular desktop was because of the Lenovo Windows 7 ENHANCED operating system that Lenovo has been advertising so much.
To my surprise and disappointment, this BRAND NEW Lenovo Windows 7 Home Premium 64bit does not have the Enhance version, it is Windows 7 Home Premium 64bit only.
Apparently, Lenovo is making some with Enhanced and some without.
Finally, another reason I purchased the 1BU version is because it has a TV Tuner.
To my surprise again, the TV Tuner card in this model does not have an FM Tuner, which almost all TV Tuner Cards have. So, as a result, no FM Radio with Windows 7 Media Center.
Thank you for taking the time to read this long post, but thought it was important to share with the community.
Comments and Help will be most appreciated.
MateusMan
Moderator note; e-mail address removed to stop the spambots getting it

What brand DVD drive did you install? Some third-party drives won't boot by holding down the C key at startup, because they lack the Apple/OEM drive's ROM programming. I recently installed a Memorex (manufactured by LG) DVD burner in a B&W G3, which is recognized by Toast and (with PatchBurn) the iApps. The compatibility problem occurs when selecting a CD/DVD as the startup disk using the Startup Disk Preferences/control panel or by holding down the C key during the restart. In either case, the drive ejects the disk during the POST, so that I have to immediately close the tray and hold down the C key again, to persuade it to boot from the disk. Is this similar to what you're experiencing?

Hangs or Kernel panic on boot -- won't boot off DVD or hard drive

I have a MacBook running OS X 10.5, and when I tried to turn it on today it froze at the gray screen with the apple logo. No spinning progress wheel appeared.
In an attempt to fix this, I unplugged my external hard drive and my ethernet cable, leaving only the power cord attached. Attempting to boot from the install DVD results in a kernel panic. It won't boot in safe mode or single-user mode. In verbose and/or single-user mode the text displayed for the boot sequence appears normal until the following block of text that comes right after "The Regents of the University of California. All rights reserved.":
MAC Framework successfully initialized
using 5242 buffer headers and 4096 cluster IO buffer headers
devfsmakenode: not ready for devices!
IOAPIC: Version 0x20 Vectors 64:87
ACPA: System State [S0 S3 S4 S5] (S3)
This is the last block of text displayed; the system hangs at this point. I've also tried resetting the PRAM (no effect), and on the offhand chance that this could be caused by a loose RAM module I ejected them both from their slots and reinstalled them, so I know they are seated with good connections.
Any suggestions or help would be much appreciated!
Thanks,
Steve

It has 1 GB of RAM, so I tried booting up with only one module. Neither one of them solved the problem, although oddly enough in Verbose mode this time instead of stopping on the error the I mentioned before, it continued a bit further and gave a kernel panic. This was the same for each module.
I'm coming to the conclusion that at this point it's probably either the logic board or the CPU, and will probably be expensive to fix -- the warranty ran out in August. I suppose that it's possible both RAM modules are bad, but it seems very unlikely that both of them would be.
I suppose I'll just have to bring it in for servicing and have it checked out.
Thank you for the suggestions.

C55-A won't boot from DVD or USB thumb drive.

I'm trying to boot Linux Mint from a DVD or USB stick and this laptop just says that the media failed when trying to initilize either the DVD or USB stick. I've disabled secure boot in the bios thinking it was UEFI problem but it still won't boot. These discs and usb sticks work in other computers.
Not sure where to go from here, any advice would be much appreciated.

Try this.
In the UEFI, go to the Advanced tab, enter "System Configuration" and set the Boot Mode to "CSM Boot."
Always tell us which Satellite C55-A you have when you post here. There is a label on the bottom.
-Jerry

MacBook Pro HD issues; won't boot to any drive; need to recover data

*Apologies in advance for the lengthy post. I just want to be sure I include as much detail as possible. Thanks in advance for reading all of this and offering any thoughts and suggestions.
I have a 13-inch late 2011 MacBook Pro running OS 10.7.
The computer recently began booting slower and slower until finally one day it did nothing but show the gray boot screen with the apple and a spinning circle and/or progress bar at the bottom. It won't do anything else. I assume it's the HD; no surprise there. What's killing me is that no matter what I do, I can't boot to any disk, internal or external, can't mount it in target disk mode, and can't repair it or recover data, which is a first for me with any HD. However, the computer still clearly sees the drive, and the drive sounds and runs normally (meaning no clicks; appropriate amount of whirs and such).
What I've done so far:
Reset PRAM — no help
Reset SMC — no help
Boot in Safe Mode — same result as regular boot: gray logo screen with spinning wheel
Disk Utility message:
Verify Disk — "Error: This disk nees to be repaired. Click Repair Disk."
Repair Disk — gets as far as "Checking catalog file" then shows "Keys out of order". Next is "Rebuilding catalog B-tree." Then "The volume Macintosh HD could not be repaired."
fsck — same as Disk Utility: "Keys out of order (4, 22016)", "Rebuilding catalog B-tree", then "The volume Macintosh HD could not be repaired." FILE SYSTEM WAS MODIFIED." ...over and over again
If I hold Option while starting the computer, it gives me only two drives to boot from, regardless of any other external HDs or flash drives I have attached: Macintosh HD (internal), and Recovery HD (internal partition). If I choose Macintosh HD, it's hit or miss whether it prompts the Disk Utility screen or just gray-screens forever. If I choose Recovery HD, it successfully runs Disk Utility every time. Here's the thing, though — if I attach an external HD, it doesn't see it during the initial Option-startup. However, from Disk Utility I'm able to select a startup disk from the menu to restart into. It sees the externals in there every time and lets me select them as startup disks, but upon restart it returns to the gray Apple logo screen with spinning wheel and/or progress bar at bottom. Sometimes it also sees the internal Macintosh HD here, but selecting that is useless. I can't actually boot from any disk, internal or external, running full OS or even just recovery software.
I've tried using TechTool Pro 8's edisk and ProToGo bootable drives, but again, the MacBook only sees them from Disk Utility only (not on Option-start), and I can select them, but it doesn't actually boot to them; it reverts back to gray screen.
I've installed a full version of OS 10.10.2 on an external hard drive, complete with DiskWarrior 4 on it, but same problem as above — it sees it in the "Select Startup Disk" menu, but not in the initial Option-start or successful reboot.
I've tried booting from a DiskWarrior 4 DVD using C-startup. It recognizes and spins the DVD from the get-go. Eventually it boots to it (after about 20 minutes or so of reading the DVD). I'm able to launch DiskWarrior 4 and start a rebuild. However, it goes all the way through "Step 6: Constructing optimized replacement directory... Overlapped files detected: 7 ...Step 7: Finishing construction ...Step 8: Reading from disc, one moment please..." and then the computer kernel panicked. This happened several times. I reset the PRAM again, then retried DiskWarrior DVD boot, this avoided a kernel panic and it got as far as "Comparing directories... Step 9: Recording any file or folder differences; 3,449,089,956 tests..." and then DiskWarrior and the computer both freeze and I have to force shutdown.
The drive will not mount to another laptop in Target Disk Mode.
Disk Arbitrator immediately sees the the faulty laptop HD, but won't let me mount or unmount it. It's just there, grayed out.
Data Rescue 4 is able to see the faulty laptop HD through Target Disk Mode, even though the drive itself will not mount to my desktop. I am able to scan the drive using DR4, and start a data recovery process. However, DR4 is dumping all recovered data into "User Defined" ai (Adobe Illustrator) files, which makes absolutely no sense at all. What's more, the files aren't able to be opened by any program. Even files that it hasn't recovered into ai files, like txt and mpegs, cannot be opened. I've tried recovering from both the drive itself and from a clone of the drive (made through DR4), with the same result each time.
So, all of that said, I guess my first question is what the **** is going on? The drive mechanically is functioning fine, but there seems to be an issue with its readability (and the directory/files?).
What's more, why won't this laptop mount ANY drive? I should be able to Option-boot into any drive, especially if the USB ports, drives, and OS's are all fully functional, right? Is there any workaround I'm missing? Even if the internal drive and data are just screwed, what's causing a total lack of mounting or booting of any drive, internal or external?

Holy crap, I got it to work.
Essentially, I just waited until DiskWarrior reached Step 9 and told it to skip the step before it had a chance to freeze. It skipped successfully, moved on, rebuilt and replaced the faulty directory files.
So far the computer is booting like normal, I can log in, and I'm currently copying all of the data to an external as I type this.
I still have no idea why the computer wouldn't mount or boot to any drive, but I guess I'll deal with that later.

NF750-G55 New Build Won't Boot to DVD

I'm doing a rebuild of a system in which the old motherboard failed. This is only the second time I have done a build, so forgive any apparent ignorance. The following describes the system: Motherboard: MSI NF750-G55, CPU: AMD Athlon II X3 450, PSU: Hiper Type R MkII 880W, Case: Antec Three Hundred, Memory: Rendition by Crucial 1 X 4GB, Hard Drive: Seagate 400 GB, DVD: Samsung 22X SpeedPlus. Only the case, PSU and DVD come from the first build I did 18 months ago and were fine until the old MOBO failed.
The problem I'm encountering with the new MSI NF750-G55 is booting to the DVD so I can load Windows Vista onto the hard drive. The POST gives me a Bad CHKSUM error and directs me to bios setup. In setup, the Boot Sequence shows my DVD and hard drives as disabled and won't let me enable either.
I've uninstalled everything, cleared the CMOS and reinstalled everything five times. Nevertheless I am still getting the same error message and can't enable either my DVD drive or hard drive. Therefore, I'm unable to successfully boot up and load windows onto the new hard drive.
I'm out of ideas and ready to return the MOBO to Newegg for another, but I would rather fix the problem. Does anyone have any ideas as to what I can try next before I ask for an RMA?
Thanks in advance for any help you can provide this newbie.

Quote from: Pixy on 16-April-11, 04:24:53
I've tried loading defaults (both optimized and fail-safe) in bios setup as well as by using F2 in the chksum error screen. All result in a screen that looks like this:
The text that is obscured in the upper part of the screen reads:
BTX loader 1.0 BTX version is 1.01
Console: internal video/keyboard
Bios drive C: is disk 0
Bios 636kB/2030208kB available memory
Once in that screen, the only way out is to unplug the PSU and reset the CMOS.
As I said before, I'm stymied and have no idea what to try next.
Quote
Once in that screen, the only way out is to unplug the PSU and reset the CMOS.
do not do this, just hit reset button then press F11 during BIOS post screen and boot from your optical drive.

XServe won't boot from any drive, but recognizes them in OS X Installer

I know I have another post here but this is a different issue, and I've already fixed that one thanks to Camelot .
I just received an 2 used xserves for work. One booted into OS X Server fine, so I scrubbed it and reinstalled without issue.
The second however never booted into an install. That is, I never found it on my network when I started it up and when I pushed the power button it would turn off immediately, suggesting that there was no OS on the disk or that the xserve couldn't find it. I didn't have a spare monitor to plug into it (surprisingly) so I just chalked it up to the fact that it was a new disk and hadn't had OS X Server installed on it.
Now I have a spare monitor, I've gone and installed OS X Server on the xserve. It boots from the DVD just fine, runs through the installer, then when it goes to restart, it won't boot from the hard drive that it just installed OS X Server on, it'll just boot back from the DVD unless I pop it out. If I let it boot up without the DVD in it, I'll get the standard Folder with a ?.
At first I thought it was the drive, so I installed OS X Server on another drive. Still wouldn't boot to that drive, so I booted from the DVD and repaired the disks in Disk Utility. Still nothing. I booted to DVD again and when I went to Startup Disk, it actually did show my disks with their respective OS X Server installs.
When I boot the machine holding alt/option, the system doesn't show my drives, only the DVD if it's in the slot.
I figured ok, this has to be the drives, so I swapped them with those of the identical xserve in the rack below, but my top xserve wouldn't boot from those drives either. Somewhat expectedly however, the bottom xserve would boot the drives that I took out of the first one.
Now I'm just stumped. Any ideas?
PS, drives are unlocked.

MrHoffman wrote:
The EFI firmware, the SMC and possibly the disk I/O path seem good potential candidates for culprit.
Load and run the hardware diagnostics.
Reset the SMC, and reset the LOM.
I'm running the EFI diagnostic tool now. Firmware and disk I/O path came to mind, let's just hope it's not a major hardware issue
beatle20359 wrote:
Hi Jeff,
Do you have the specs of the xserve and the version of OSX server you are trying to install? Does the Xserve have the RAID card installed in it and what size are the drive modules.
All the best
Beatle
2x 3GHz Dual-Core Xeon
8GB RAM
OS X Server v 10.6.3 (the version I'm trying to install, that is)
No RAID card. The system drive is 80GB and a second storage drive is 1TB.

If leopard won't boot from dvd, use disk utility mount to partition

wanted to share a way that i successfully installed os 9, tiger, and leopard on 1 hard drive. first of all, leopard was the only installation that i had difficulty with. it would not boot off the original dvd, no matter if i held down the 'c' key or the option key, so this is what i did after a lot of reading on the internet to try and troubleshoot this issue.
First thing i did was partition my internal hard drive in 3 partitions using disk utility. the 3rd partition was around 9gb. I installed os9 first on the 1st partition, i then installed tiger on that same partition. then i put in my leopard dvd, and opened up disk utility. and clicked on "restore", and dragged the dvd image as the "source", and chose the 9gb partition as the destination, and clicked on restore. then, i changed the "startup disk" to start from the 9gb where i just restored the image, and rebooted, and went through the leopard setup and chose the 2nd partition as the place to install. this should work with the dvd, or if you made an image from the dvd. I hope this helps someone else whose dvd won't boot, because it was very frustrating after you purchase a faster processor, and faster video card so that your system meets the requirements, and then the dvd won't boot.

Two ways. Use another computer to restore the install disc to one of those ext HD. Then, use it to boot the other machine. Get an ext CD/DVD reader and use it to read the install disc and boot the machine. However, if both the HD and optical reader are kaput, then a trip to an Apple repair station is in order.

Macbook won't boot from Hard Drive of Disc Drive!

So I bought a Macbook (Mid-2010) from a friend recently and I can't seem to get it to boot from the hard drive or optical drive. At first I tried booting from the HD it already had and when I didn't have any luck, I went out and bought a new one. It still won't boot. I'll turn it on, it'll chime and will try to load, and then I'll get the "You need to restart your." message. I've tried booting from disc (Leopard & Snow Leopard) and will still get the same message. I have also tried all possible startup key combinations and haven't had any luck. I don't have the original DVD it came with. So was wondering if any of you guys out there have experienced this. I would like to hear your tips before I go to an Apple Store and see if they can get it fixed for me.

"You need to restart your." message
That is referred to as a "kernel panic"...
Try here > Tutorial: Avoiding and eliminating Kernel panics | MacFixIt - CNETReviews
I don't have the original DVD it came with
You will need those discs. Replacement disc(s) from Apple: You can get replacement System Install & Restore CD/DVDs from Apple's Customer Support - in the US, (800) 767-2775 - for a nominal S&H fee. You'll need to have the model and/or serial number of your Mac available.
You can check the startup disk using the Disk Utility application located in /Applications/Utilities if you can boot in Safe Mode, but you cannot make repairs without the install disc.

Not booting from DVD drive | Flashing Question mark and face folder SOS!

Hey there! I am hoping one of you folks can help.
I noticed my iMac running really slow.
I could not find my OS disks, so I bought OS X Leopard
When I tried to boot from DVD it would flash the question/face folder for about 30 seconds then reboot normal. (I was able to install the OS. Just can't boot from the disk in order to run disk utility)
Time got away from me and now my system is REALLY slow...
I went and bought Disk Warrior
Same issue, only my drive spits out that disk. (I can run and burn other disks)
I won't discuss my failed attempts at getting help from the Apple store and by having the geniuses (not) call me. I would rather not pay an arm and a leg to have an approved repair center run the disk utility for me. I've already spent $169 on the OS and $100 on Disk Warrior... PLEASE HELP

I think you are going in a totally wrong direction. Your profile indicates you have Leopard (10.5.X) however I don't believe that what you recently purchased. I think you purchased Snow Leopard (10.6.X), these are two totally different OS's! Unless you got extremely lucky and found someone selling 10.5.x then naturally you would have the problem you did trying to boot from it. My advice is:
1. Look to see what version of OS X you are running (click the Apple in the upper left of this screen and then choose About this Mac) then cross check what version of the OS you recently purchased.
2. If you are running 10.5.x then you will need to call Apple and purchase replacement discs for a nominal charge. Once received you should be able to boot from that disc and run Disk Utility from it.
3. If you are running 10.6.x then re post (with an updated profile) so we can determine what the next step is.
It seems like you don't know what you are doing and in an effort to save money you are probably going to spend more than taking your machine to an Apple Authorized Service Provider.
Regards,
Roger

Not booting from DVD drive | Flashing Question mark and face folder S

Hey there! I am hoping one of you folks can help.
I noticed my iMac running really slow.
I could not find my OS disks, so I bought OS X Leopard
When I tried to boot from DVD it would flash the question/face folder for about 30 seconds then reboot normal. (I was able to install the OS. Just can't boot from the disk in order to run disk utility)
Time got away from me and now my system is REALLY slow...
I went and bought Disk Warrior
Same issue, only my drive spits out that disk. (I can run and burn other disks)
I won't discuss my failed attempts at getting help from the Apple store and by having the geniuses (not) call me. I would rather not pay an arm and a leg to have an approved repair center run the disk utility for me. I've already spent $169 on the OS and $100 on Disk Warrior... PLEASE HELP

Hey,
No, I'm not running Snow Leopard. Running Leopard. 10.5.8
I'm guessing the problem is either with my computer itself, or perhaps the DVD drive. Hard to tell. Maybe even something corrupt in my software?
My problem is:
I desperately need to run a disk utility of some sort, however am not able to make my computer use my OS disk or Disk warrior as a startup disk (either by holding down C, or by assigning it in System Utilities.)
I was hoping someone might have a tip, or trick to get my machine to use one of these disks as the startup disk.
Thanks!

Won't boot to DVD drive.

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