Start up from install disc

Hello there,
I need to start my Macbook from the install disc in order to do a minor repair using disc utilities.
Can anyone tell me how to do this?
Many thanks.
PG Logo

OK, I've tried doing the above about a dozen times but on each and every occassion I get the option to reinstall my software.
There is an option to choose the installation disc when I choose Quit Installer but it keeps bouncing me back to installing the software from scratch.
I don't want to do this. I just want to run a repair disc from the utilities menu.
Any ideas to how I can accomplish this?
Many thanks
PG Logo

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Won't start up from 'Install Disc'

I ran Disk Utilities because my iMac's fan kept running. Disk Utilities said I had HD problems and needed to start up from the Install Disc. I have tried holding down 'D' and tried changing the start up disk settings, even starting up pressing C and as a final go... Command-Option-P-R..... still not starting up on the install dvd. All I get is a white screen and the DVD clicks for a bit and then gives up.
I just can't seem to get past that white screen!
Please give me a hint!
P.S. I have even tried different install DVD's!

I am having very similar problems.
iMac has worked fine for 3 years. Today, it suddenly froze while I was on the web. I had to force it down by holding down the button on the back. When I tried to start, it would just sit on the Apple icon + progress icon. Or it would get to the blue screen and then just freeze at the blue screen. No system at all.
I was able to restart in safe mode once. Things seemed to be working fine. But the second I started Safari, the progress icon came up (the one for my mouse), would never go away, and I couldn't do anything. Had to once again shut down by holding down the button on the back.
After that, it will not restart in safe mode (hangs at the apple icon or never even gets to the apple icon). It will not restart from the Install disc. Same thing, just hangs at the apple icon.
We don't use this machine for anything except browsing the web. No big programs. No games. No movies. Nada. It's so frustrating to have this problem.

Can't start up from install disc

When Onyx checked my start up volume it said there was a problem and I should start from my installation disc and run disc utility. I tried restarting and holding down C and it would not start from the disc. In researching support I tried resetting PRAM with no luck. I saw that with a wireless keyboard I should wait till I hear the chime before pressing C, no luck. I next tried restarting pressing option instead. It only gave me the choice of Macintosh HD not install disc.
I assume I am using the correct disc (imac Applications install DVD) as it is the only one I can find. Am I doing something wrong or is there any other suggestions?
Thanks for any help.

Greetings,
#1 If your getting that kind of message from Onyx make sure you have your data backed up before you do any kind of repairs. If you have an issue with the formatting of the drive (which is one of the triggers in Onyx that gives you that message) then you need to backup your data ASAP. Repairs can actually make things worse with certain kinds of drive issues. So backup now.
Are you using the install disk that came with your computer?
I assume when you put the disk in the drive, it shows up on the desktop and gives you all the contents of the disk?
If so this sounds like a keyboard issue. I would try a USB keyboard or put some REALLY fresh batteries in the your current one. Like just bought from a store that doesn't keep batteries sitting in the back for 3 months kinda fresh.
Alternatives:
_Put the disk in.
_Go to Apple > System Preferences > Start Up Disk
_Choose the disk here and then say restart
Once you've completed the repairs using Disk Utility from the install disk, quit the installer and you will get the option for Start Up disk. You can then choose the internal hard drive so the system boots normally (Or use the option key to use startup manager at boot to choose the internal HD).
Hope that helps!

Not even starting up from install disc !!!!

After having to reformat my internal hd, I recovered from a time machine backup. But now at startup it won't go beyond the grey page with apple logo and spinning gear. Neither with internal hd nor with install disc A first timer after 17 years with macs!!

Zap the PRAM and try to start with the install disk. Details in http://support.apple.com/kb/HT1379

How can I start from install disc without shutting down Mac?

Sorry. that last post wasn't so clear. I started the computer without a password, but I think when I was trying to set my own password I may
have re-activated the old one.
I'm afraid that if I shut it down I won't be able to restart it?- (for starting over from install discs)
What Have I Done?
This is a hard one. Can anyone help?

Put the disk inside the slot.
Hit the restart button.
Hold down the c key as your computer is booting.

Will Not Boot from Install Disc & 4SNS/1/40000000: TG0D - Thermal Sensor?

*Will Not Boot from Install Disc*
I used the "option key" approach with the gray start up disk. At first it ejected the start up disk. Then I nudged the disk back in the machine and it showed on the screen as an option. I clicked on the start up disk image and it finally loaded.
But, it won't accept the start up disk when holding down the "C" key at restart.
*4SNS/1/40000000: TG0D*
I did an Apple Hardware Test and received the following diagnostic:
Version: 3A121
Test Suite: Extended Test
Loop Count: 2
Result: Failed
Failure code: 4SNS/1/40000000: TG0D
*Thermal Sensor*
A search for the failure code 4SNS/1/40000000: TG0D brought up an Apple Discussion topic entry stating: That error code indicates a problem with a thermal sensor. It could be not working or possibly not connected. You will need to take it to Apple for repair.
Would a thermal sensor have anything to do with it not starting up when holding down the "C" key at restart? What are thermal sensor problem symptoms?
*User File Folder Opened Up*
The machine also starts up with my user file folder opened up rather than with a blank screen as it normally should
I completed a DiskWarrior rebuild on the disk and verify disk shows it is fine.
Any suggestions on what to do next with these issues?

The answer was in your post: "You will need to take it to Apple for repair."

Can I restore my system from install discs when DVD is not working?

Can I restore my system from install discs when DVD is not working?
There is a disc jammed in the drive and when I try to do an install in Target Firewire mode using a G5 Tower I get an error saying the software cannot be installed on this machine, before I can even select the iMac's drive. I'm using the grey software install discs that came with the iMac.
Is my only option to open up the iMac and get the jammed disc out?
Thanks

Problem solved - I posted on the general Tiger Discussions as well.
I had the wrong machine started in Target Firewire mode.
http://discussions.apple.com/thread.jspa?threadID=2180754&tstart=0

Can I restore my system from install discs when DVD drive is not working?

Can I restore my system from install discs when the DVD drive in my iMac G5 is not working?
There is a disc jammed in the drive and when I try to do an install in Target Firewire mode using a G5 Tower I get an error saying the software cannot be installed on this machine, before I can even select the iMac's drive. I'm using the grey software install discs that came with the iMac.
Is my only option to open up the iMac and get the jammed disc out?
Thanks

You need to set up the FireWire Target Disk mode installation with the iMac as host, so that it runs its own install disk. The G5 tower should be the target, so that you are "borrowing" only its DVD drive.
Shut down the iMac. Put the iMac install disk into the G5 tower, and reboot the G5 tower into TDM by holding down the T key. Connect the FireWire cable and then restart the iMac while holding down the option key. Hopefully the iMac startup manager will see the install disk that is in the tower; if so then select it and boot from there.

HT4904 I need to repair my start up disc so I have to start up from installation disc. In doing so, my computer restarts, I hear the mac sound, then a grey screen and then turns off and goes on in this cycle endlessly. Why can't I restart from disc?

I need to repair my start up disc so I have to start up from installation disc. In doing so, my computer restarts, I hear the mac sound, then a grey screen and then turns off and goes on in this cycle endlessly. Why can't I restart from disc?

Booting From An OS X Installer Disc
1. Insert OS X Installer Disc into the optical drive.
2. Restart the computer.
3. Immediately after the chime press and hold down the "C" key.
4. Release the key when the spinning gear below the dark gray Apple
logo appears.
5. Wait for installer to finish loading.

My 27" aluminum imac no longer recognizes its own hard drive. i start up from the disc, but get no destination to install. whatever am i to do???

it shows up in disc utility as "media" unable for verify or repair. as a target disc all that appears is the install disc. anyone else have this problem??

Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. Is your hard drive at least listed in the DU sidebar? If so, select the topmost entry (drive mfgr.'s name) and not what is displayed for the SMART status in the DU status area. If it does not say "Verified" then the drive itself has died.
I would also suggest you shut down the computer for a full minute then restart doing the above in order to see if the drive "comes to life."

Won't start past apple logo, won't boot from install disc

mbp penryn 2.4 core 2 duo won't boot past apple logo. Running mtn lion 10.8... inserted Snow Leopard install disc, held down C key, only get a grey screen.Recently installed new HD, (seagate 750 Hybrid), upped ram from 2x2 to 2x4. All has been running very smoothly (and much cooler) for the past 3 weeks. Then this, prompted apparently by the mac going to sleep w/o being plugged in. Ran battery down, I suppose? Happens frequently.
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ds,
"You might have ruined the RAM by handling it and touching the contacts.
Once you put new good RAM into the machine, reset SMC and PRAM then boot it up."
On the odd chance that I did ruin my ram I replaced w/ 4gb brand new ram, reset SMC and PRAM, then attempted to boot. Still a grey screen. Also re-attempted to put mbp into target mode, but no luck there either, nor with ejecting the Snow Leopard install disc via option/trackpad method, both on startup and while running, and no luck there either. I have a second Penryn mbp that I could salvage for a spare part if I knew what the problem might be. So far I get the idea from your responses that my machine SHOULD be rebooting, but for some reason isn't.
If this helps:
I hear, consistently on attempting startup, fans powering up, then two short whirrs as if a drive head is moving, then when the fans quiet down after 30-45 seconds, another short but different whirr, then only quiet fans and a grey screen.
Thanks in advance for any reply.

Macbook not starting from install disc

Hi, I have a Macbook that I want to fully erase. I tried starting up with a Leopard install disc holding down C. Result was the grey startup screen with the icon and then a message to restart. Same result with a Snow Leopard disc and selecting the install disc as the Startup in System Preferences. No go for the lot. I would be gratefully for any suggestions. Thanks. Geoff

You must have retail install disks, i.e. generic disks for any mac model previous to that generation of Mac OS. You do not mention this detail. I suspect you do not use appropriate install disks. What happens if you use the original install disks? Or you do not have them any more?

Can't boot from install disc after new RAM & SSD install

I decided to breathe some new life in to my 2007 2.2GHz MacBook by:
-upgrading the RAM to 4gb w/Centon memoryPOWER 2GB DDR2-667 PC2-5300 CL5 SO-DIMM Laptop Memory Module
-replace the HDD with a SSD (Samsung 840 Pro-Series MZ-7PD128BW 128GB SATA 6.0Gb/s 2.5" Internal Solid State Hard Drive).
-Also going from Leopard to Snow Leopard after the hardware upgrade, then possibly Lion/Mountain Lion...
What I've already done:
1. Backed up my hard drive using time machine, did not clone
2. Using the install disc/Disc Utility, I erased my old hard drive completely (Hope that wasn't a huge mistake!)
3. Replaced the previous 2gb (1x1gb) with the new 2x2gb RAM sticks
4. Swapped out the HDD with the SSD
When I went to boot the machine, all I get is a black screen. I can hear the optical drive spin for a while, then stop. Screen remains completely black. I have tried using C while starting as well as Control - same result. So, I put the old (erased) HDD back in and again got the same result. I didn't have time to put the old RAM back in and try again before work this morning and intend to tonight. Based on that, maybe my RAM isn't compatible even though the specs look to be...? But, does anyone know if the components I am using are not compatible? or did I totally screw up by erasing the old Drive prior to confirming this would work? Am I missing something else?
Any help would be MUCH appreciated!

I was finally able to get it done using my old RAM, so that must be the weak link. I'm going to try to return the RAM I bought and try a different brand. Thanks For the response!

Won't boot from install discs after deleting some system files

I've been looking through the forum and haven't found an answer to my problem - maybe someone can help me out.
I have an aluminum Powerbook G4, 1.67, 1.5 RAM, 10.4.11. I was experiencing the problem with FCE capturing video for about 5 minutes and then freezing, and I read some threads here about how this can be fixed by returning to Quicktime 7.2 and installing it with Pacifist. I did this, but first tried to delete my previous Quicktime version files, and obviously I deleted some system files in the process. That's how my new problem started.
Programs now that do not open - Preview, iTunes, iMovie, FCE, Yahoo, Mail, and Microsoft Messenger. I no longer have my date/time/battery level/airport/bluetooth indicators in my toolbar. The Spotlight icon flashes, but will not open. Also, when opening the System Preferences pane, it opens just for a second or two and then crashes and closes. Safari, airport, and Word all work, though, and I still can access internet.
I tried to re-install OS 10.4 from my black install disc. The computer reads the disc, but after I click the installer icon and then "restart," the computer fails to completely reboot. The disc spins in the drive, I get the Apple, the indicator, and then the screen goes to blue and the disc soon stops spinning. Nothing happens after that. I've tried rebooting by holding down the C key but the same happens. When I hold down the option key, I get to the point where I can choose to boot from the install disc, and then the same thing happens - the blue screen and nothing more. Booting with the shift key held down doesn't work either.
I did just have a repair by Apple - my adaptor plug sparked when inserting it into the outlet, and I had to have the logic board replaced. But the computer seemed to be working fine when I got it back, except for the FCE issue first mentioned. Looks like my good intentions have done me in.
The install disc is about three years old, and is in good condition. It's been in the garage, so could heat or cold affect the readability of the disc?
Does anyone have any suggestions on how I can boot from my install disc and get a fresh install of my OS?

Hi bboross,
Tough without a Tiger Disk, but try fsck...
To use fsck, you must run it from the command line. Unlike using your mouse to open an application to do something, you'll need to type a text command at the prompt (#) to tell fsck what to do. The Terminal application (/Applications/Utilities) and single-user mode are two examples of command-line interfaces in which you can type such commands. To use fsck:
1. Start up your computer in single-user mode to reach the command line. Hold CMD+s keys down at bootup. Note: If necessary, perform a forced restart as described in the Emergency Troubleshooting Handbook that came with your computer. On desktop computers, you can do this by pressing the reset/interrupt button (if there is one) or holding down the power button for several seconds. On portable computers, simultaneously press the Command-Control-power keys. If your portable computer doesn't restart with this method, you may need to reset the Power Manager.
2. At the command-line prompt, type /sbin/fsck -fy
(space between fsck and -fy important)
3. Press Return. fsck will go through five "phases" and then return information about your disk's use and fragmentation. Once it finishes, it'll display this message if no issue is found: ** The volume (nameofvolume) appears to be OK  If fsck found issues and has altered, repaired, or fixed anything, it will display this message: *** FILE SYSTEM WAS MODIFIED ***   Important: If this message appears, repeat the fsck command you typed in step 2 until fsck tells you that your volume appears to be OK (first-pass repairs may uncover additional issues, so this is a normal thing to do).
4. When fsck reports that your volume is OK, type reboot at the prompt and then press Return.
http://docs.info.apple.com/article.html?artnum=106214
Then Safe Boot , (holding Shift key down at bootup), & use Disk Utility from there to Repair Permissions, reboot once more.

IMac won't boot from install disc

My iMac has been running a little slow the past two days and so I ran Disk Utility. DU reported that I had the incorrect number of thread records and an invalid volume count. It instructed me to repair the disk by booting from the install disc. The problem is that when I try to boot from the install disc (after I choose the disc from the options), I just get a gray screen with the apple logo on it. Nothing else happens, no disc activity, nothing.
Anyone have any ideas as to how to get my iMac to boot from the disc and, ultimately, to get Repair Disc running from DU?
Thanks,
Rich

It should only take a minute or so at most to boot from the DVD.
If your sure you have the correct Install Disk for that iMac, I'd start over. Then if it still doesn't work then perhaps a trip to your Local Apple Service Provider with the Disk or Disk and iMac is in order.
http://www.apple.com/buy/locator/service/
Alternately using the correct Disk as per the following article, see if you can run the Apple Hardware Test? > http://support.apple.com/kb/HT1509

Start up from install disc

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