IMac ejecting 10.5.6 install dvd.

I just bought the Mac box set to upgrade from 10.4.11 to 10.5. My iMac keeps ejecting the 10.5.6 install dvd, even when I restart holding down "C". The superdrive is a Sony DVD RW DW-U10A, Revision A13b. The CPU is a PowerPC G4 (3.3) with 1 GHZ speed.

I'm not sure if this would work but you could try turning off the computer, and truning it on while holding down alt (option). Then select the disk. I'm sorry if it doesn't work but you might as well try.

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Can't install OS 10.4.6 on my imac 5.1 with the install dvd.

I borrowed the install disk from a friend and tried to format the HD and start up from the new OS but it doesn't work. Is the disk specific to my friend's computer or is my computer too old to support the new OS? How can I format and start up my computer without having to use my older OS version install dvds?

I just wanted to start it from Leopard again instead of my Tiger disks, but I no longer have the retail Leopard dvd.
Well, what was really confusing about your post was its title (Can't install OS 10.4.6...) where you implied you wanted to (re)install a version of Tiger!
I was going to question you why you wanted to do that but I figured you knew what you wanted. If you don't have your original installer disks then you need to acquire the retail installer.

My older i7 core iMac refuses to boot off install DVD

Can't seem to reboot off install discs. Stripped & reformatted couple year old i7 Core iMac 27" for Wifey at Christmas, and no iphoto, and finally noticed no way to download. spits out install discs like chewing tobacco.
OS 10.6.8, 2.8GHz i7 core, 12gb ram.
What on earth is going on???
Anyone got any clues?

The first thing to try is a drive cleaning disk. A dirty optical drive can cause that symptom. The dry type with fine brushes works best for me.
As these cost only US$5-15, they are an ecomonical first step that may revice the drive.
A friend had a Mac doing what your is and was told by a certified Apple tech that his drive was dead and required replacing--about US$150 for his model. I loaned him my cleaning disk and that was sufficient to restore the drive to 100 percent function.

IMac Intel Core Duo: Which Install DVD disks should I be looking for?

I have an iMac Intel Core Duo (2 Ghz, 20") model. This was sent to me from Apple as a replacement for my iMac G5 when it had problems a couple years ago. I just realized today that they did not send me OS install disks for it; I still have the iMac G5 install disks though.
What iMac install disks should be looking for to purchase? Are they specific to an Intel Core Duo? Would any iMac Intel installation disk work?
Thanks in advance.

You may be able to contact Apple and have them provide a replacement set for a nominal fee.
If it's the Core Duo white iMac from +early 2006+, it came with Tiger (10.4). Therefore, you can get install Leopard or the current Snow Leopard on it. You just need the standard retail disc.
Would any iMac Intel installation disk work?
Usually, installation discs that come with Macs (the grey ones) only work with that specific Mac model. A retail disc (the ones that are sold separately) will work with any supported Mac model.
There is another difference. The disc that is included with Macs also have additional bundled apps, such as the iLife suite. The original included disc for your iMac would have iLife '06, which is two versions old, so it may not be that much of a benefit today (iLife '09 is the current version).

HELP: Intel iMac does not accept Tiger install DVD

A friend bought a used intel imac w/o any of the restore discs. He bought Tiger and wiped the hard drive but the computer will not start up from the Tiger disc when holding down C. How can we install Tiger onto this computer? Any ideas?
Thanks!!

An intel Mac will only boot from the installer disk that came with it. It's an intel Tiger installer disk. You can't use a ppc Tiger installer disk. So, he needs to get the disks that came originally with the Mac. Or, wait for Leopard.

Downgrade using Snow Leopard install DVD does not work on iMac 27"

I have an iMac 27" (SMC version 1.54f36) that I wish to downgrade. I bought a 5-user Snow Leopard license. Now I'm trying to re-install from the DVD, but the computer won't boot on the DVD.
If I run the installer from the desktop, the installation starts, but when the computer reboots, it gets stuck. No alterations is done on the system disk, so I can hold down the Alt key and choose to boot from the system disk and I'm still on 10.6.5. For the moment I cannot find the discs supplied with the iMac, but surely the SL install DVD should work?? I've used it once before to do a clean SL install (I believe the iMac I have came with Leopard).
The version on the SL install DVD is 10.6 (2Z691-6558-A)
The reason for downgrading is that my Pro Apps (DVDSP and FCP) got a bit shaky when I updated to 10.6.5.

If you have a 27" iMac, it had to ship with Snow Leopard installed. See Mac OS X versions (builds) included with Intel-based Macs to confirm this, & Don't install a version of Mac OS X earlier than what came with your Mac for why you should not try to downgrade to an earlier version.
If the version on your SL install DVD is 10.6, then it is an early version & will not work with your iMac. The current retail product version installs 10.6.4 & should work if your iMac is the "Late 2009" model. It probably will not work if your iMac is the "Mid 2010" model.
You need your grey system discs. They should be kept accessible wherever you use your iMac. If you have lost them, contact Apple about getting a replacement set.

IMac G4 Flat Panel Will NOT Mount Leopard Install DVD

I'm trying to install Leopard (MacOS X 10.5) onto a 1 GB 1.25 GHz iMac G4 (flat panel) from an install DVD.
Any ideas why it doesn't mount? After a minute or so and several spins and arm accesses the iMac ejects the DVD. Maybe this is a dual-layer DVD and the old iMac can't read dual layer DVDs?
More important, how can I install Leopard on this old hardware? Can I access the DVD from another Mac set up as a firewire target disk? Can I copy the DVD to a USB/FireWire external hard drive?
Any other ideas?
Thanks.
- nello

From what source is the Leopard DVD? Retail discs should work fine in your model.
You can install from another Mac that is able to boot a Leopard installer by way of Target Disk Mode. See the following: Installing Tiger without a DVD drive and How To - Installing Tiger Using FireWire Target Disk Mode.
You cannot copy the disc to an external FireWire drive, but you can use the Restore option of Disk Utility to "restore" the DVD to a freshly formatted external FireWire drive. Cannot use a USB drive as they are not bootable on most PPC Macs.

IMac won't read the System Install DVD after trying a Software Update (Whic

Last weekend I tried downloading the 10.4.7 update to my iMac. Towards the end of the download the iMac crashed out and said that the Software Update was unsuccessful. As this was the case I tried rerunning the 'Software Update' again but after a few seconds of the application running and the little window being on the screen, it just dropped out and exited. As this was therefore not working I tried to download the Software Update as a Stand Alone application. I found after downloading the file that mounting a disk image on my iMac no longer works. My next step was to try and reinstall OS X from the System Install DVD. I put the DVD in the DVD Drive and found that after it whirred for about 20 seconds, the disk ejected. I thought this was odd so I tried to boot the iMac , holding down the 'C' key once the DVD was in place inside the iMac. The Mac powered up and then the DVD whirred for a while and once again it ejected the DVD. I now have no way of reinstalling OS X..and am at a loss. I called up the supplier of the iMac as I only purchased it in May 2006. They advised me that the warranty only covers Hardware and not Software. They said with a problem like this it could be expensive to try and work out what is causing it as it is sort of an unknown. I would like to know if anyone else has had this problem, is there some way I can see what the iMac is doing when it is trying to read the DVD and the ejects it, and is there some way of 'resetting' the iMac so that it is in the initial state. I know the BIOS on these machines is a 'soft' BIOS so as the supplier said, it is quite possible that the Software Update has corrupted the soft BIOS on the machine. Any ideas?

Yes. It is possible that the DVD could be bad.
It is also possible that your corrupted installation is preventing the DVD from working right.
It would seem strange, except that this happened with another guy as well. But, once we disconnected his internal hard drive with the corrupted OS 10.4.7 install, the machine booted from the DVD and worked properly. We then connected a different hard drive to install to, and it worked fine. Then, we connected the drive as a secondary and formatted it and it resumed working.
But, with an iMac CoreDuo, you cannot open the machine to unplug the drive. So, you'll be a bit stuck if you require the same solution. He had a PowerMac G5.
But, basically, his corrupted OS 10.4.7 installation was preventing booting from a CD, booting into safe mode, booting from an external drive, or any other kind of booting.
So, for him, the only option was disconnecting the internal drive and installing on another one.
I hope this doesn't turn out to be necessary on your system as well. If so, you'll need to take it into the shop for servicing.
The only other option I could think of is to try and boot it into Target Disk mode, and format it's drive with another computer. Perhaps that would work.
Once your internal drive has been cleared (formatted), then it may boot from the DVD again (assuming your problem is the same as the other guys).
You can read about Target Disk Mode here:
http://docs.info.apple.com/article.html?artnum=58583
You can read about the steps we took to troubleshoot and repair the other guys machine here:
http://discussions.apple.com/message.jspa?messageID=2629919#2629919
Perhaps that will help explain what I described above.
I hope this helps.

My iMac will not recognize a blank DVD-R that I am trying to burn. It also won't eject unless I "shut down"

My iMac will not recognize a blank DVD-R that I am trying to burn. It also won't eject unless I "shut down" and restart while holding down the mouse button. Anyone have any remedies?

I ran into a similar (identical?) problem. I inserted a DVD-R and my imac would not recognize it. The only way to eject was to do a restart. I tried some of the SMC reset stuff. That didn't work. I came across another thread on macrumors (http://forums.macrumors.com/showthread.php?t=336501)
that solved my problem.
I have an external Western Digital Passport drive that I use for timecapsule. It turns out
there are two files that WD adds to the /Library/LaunchDaemons that interferes with the
SuperDrive. I removed the WD files from the LaunchDaemons directory and everything works fine
now. Again, refer to the macrumors thread for more details.
The files I removed from the LaunchDaemons directory were:
com.wdc.WDDMservice.plist
com.wdc.WDSmartWareServer.plist
..yes I had installed the WD backup software to see if I liked it....I did not, but didn't realize this files would cause a conflict with the SuperDrive.

Is it possible to boot to a Windows 7 install DVD from an external USB drive on current iMacs?

On the iMac I'm currently using, a mid-2007 24-inch, it's impossible to boot into a Windows install DVD from an external drive: I can hold down option on boot, and all my hard drives come up, but if the Windows disc is in my external DVD drive, it won't show up. I'll soon be upgrading to a late 2012 iMac, and I'd like to be able to install Windows 7 for a boot camp partition. Since that iMac has no built in drive, I'd like to know if using an external DVD drive will work on that model. I'd like to do that, seems easier than messing around with disk images. But we'll see...

You can use an external optical drive to install Windows without any problem with a Late 2012 iMac.
The reason that you couldn't install Windows from an external optical drive on the 2007 iMac is that it has got an internal SuperDrive, so Apple only allows you to use it to install Windows on your iMac

G5 iMac won't read 10.5 install DVD

Hello good people! Here's my problem:
When I instert my OS 10.5 (Leopard) install DVD into my G5 iMac, the computer will not read the disk. I can hear it spinning the disk and it makes a few strange grind-like noises, but I never get an icon on the desktop and it eventually (after about a minute) just spits the disk back out. This is a 20" 1.8 GHz PowerPC G5 iMac (no camera) w/ a Super Drive and 2GB of RAM, currently running 10.4.11.
A few things to know:
• I know the 10.5 install disk is good because it worked fine on a G4 iBook.
• I know the Super Drive will read from and record to other CDs and DVDs.
• I tried duplicating the 10.5 install DVD onto another DVD and got the same result: can't read the copy either.
• I looked into updating the Super Drive's firmware and the updater told me I did not need to update it.
So it seems that this drive is just not happy with this disk or a copy of this disk for some reason. If anyone knows why, I would be grateful for an explanation, but what I am more interested in knowing is this:
IS IT POSSIBLE to run this installation either from a disk image that I put onto the iMac's desktop; OR by inserting the physical disk into the drive on my iBook (which as I said previously WILL read the disk without a problem) and then running the install from the iBook's drive onto the iMac, either over a network or by connecting the two machines directly via some sort of cable? (The iBook is running 10.5 and the iMac is at 10.4.11). If this is possible, please explain how to do it! Desperate!
Thanks in advance for everyone's help and expertise.

When I follow the 6-step procedure described here, I get a screen at startup from the iMac where I can select either the iMac's hard drive or the iBook's hard drive to startup from, but I do not see the install DVD as an option.
I also tried starting the iBook in Target disk mode (by holding down T @ startup) and then connecting it to the already-running iMac (which I started and logged into without holding down option). When I do this, I get icons on the desktop for the iBook's hard drive and for the install DVD in the iBook's optical drive (yes!). Unfortunately, the install DVD shows up as a "volume" (i.e. a drive with a white rectangular icon) and NOT as an actual DVD with a round DVD icon. When I try to launch the installer from the DVD, I get a box with a message telling me that I can't use the installer from this "volume" and that I need to run it from the actual DVD (even though it IS an actual DVD). Frustrating!

Hello, I have a 2009 iMac, and my harddrive has failed several times now, and now I need to re-install snow leopard but my install DVD is damaged and I have bought a new snow leopard disc. However my iMac will not read the disc at all ?

Hello, I have a 2009 iMac, and my harddrive has failed several times now.
I tired to reinstall snow leopard with the install DVD that came with my iMac. However the disc is damaged so I bought a new Snow Leopard but my iMac wont read the new disc, it just stays in the apple logo screen, I have tired safe boot, holding down the "C" key on startup and tried using disc utility but getting nowhere.
Please help. Thanks.

Might be related, if your hard drive is a 1TB drive,it could be a Seagate drive.
The drives are known to fail and your iMac maybe covered for free replacement under the Apple's Seagate hard drive replacement program until April 12 of this year.
I Believe the 2009 models are covered under this replacement warranty.
You can find out if you are eligible here.
http://www.apple.com/support/imac-harddrive/
Good Luck!

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Hi, i have tryed to install os x leopard, (its a old imac) , disk utility is greyed out , my install dvd cant find any hdd to install on , my only way to format and configure is through terminal but dont know what commands to execute

hi, i have tryed to install os x leopard, (its a old imac) , disk utility is greyed out , my install dvd cant find any hdd to install on , my only way to format and configure is through terminal but dont know what commands to execute...
i tryed diffrent commands such as diskutil eraseDisk JHFS+ Disk1
diskutil list , wont show up my harddrive , i now its functionally cause it shows up in disk utility with name and i can get info about it , but everything is greyed out can only switch between "erase , partition , recover , Raid ,....
when i click the apple in the top left corner the whole menu is greyed out... what to do ? help me please
Sincerly AppleNoob92
p.s i have no experience in apple imac's at all never used before, but im kinda windows nerd so computers i understand but this imac make my insane, cant seem to find any solutions anywhere on the WWW....

Your HD may be crashed, so you probably should use the oringinal install discs to run Apple Hardware Test in extended mode. If error codes appear this confirms a hardware failure. In addition you cannnot repair the HD using Disk Utility from the startup disk, you have to use the origninal Install discs that shipped with the computer or the most up-to-date version of OS X on a disc that you have.

IMac ejecting 10.5.6 install dvd.

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