IMac won't boot after trying to migrate files to macbook?

While trying to migrate info from my IMAC to my Macbookpro all work froze on both puters. Macbook starts and runs alright. But my IMAC won't boot at all. Tried startup disc and it won't get past picking a destination because it doesn't list one. I made a boo boo hear and need help fixing this.

Drive Preparation
1. Boot from your OS X 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.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.
4. Quit DU and return to the installer. Install OS X.

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MacBook Pro won't boot after trying to install 10.7.3 update. Start up stalls at Apple logo and spinning gear.

MacBook Pro won't boot after trying to install 10.7.3 update. Start up stalls at Apple logo and spinning gear. Computer won't even start in safe mode.

My daughter's MacBook Pro was doing exactly the same thing. I don't know if it had anything to do with the latest update. She called me about a week ago saying that her MacBook began running slower by the day . She then called me Friday and told me that it wouldn't get past the gray screen and the gear just kept on spinning. I did everything I could over the phone including Safe mode which it wouldn't go into and thought maybe it was the hard drive. She took it to the Apple store. Originally, they also thought it was the hard drive. It ended up being a corrupted operating system (Lion). Apple genius simply re-installed Lion and she's back up and running. Good thing she backed up right before it crapped out. She'll be restoring everything tonight. Don't know if re-installing Lion will help your situation, but it did the trick for my daughter.

IMac won't boot after power outage

I got a power outage a couple of hours ago. And now my iMac won't boot. When I power it up, it gets pass the white screen with the apple logo. The screen than turns blue with a spinning cursor. The cursor spins for about 10-15 minutes and stops but the normal login screen never appear and it won't boot into the desktop either. I just got a blue screen.
I have boot into the install Disc1 and did the disk repair and premission repair but it didn't help.
Any idea?
Sidney

Oh man, what a disaster!
I tried to do an Archive and Install but the installation hanged at the end of disc 2 after running an iWeb script (according to the install log) with about one minute left. I have waited for two hours but it just hanged there with all the drives spin down.
To make the problem worse. There was no way to quit the install at that point because all the menu items were disabled. The only way out was to power off. But when I powered it back on, it booted right into install directly asking for the disc 2. If I put the disc in it will install again and hang at the same spot.
Disc 2 contains iLife. I know Apple wanted to make things simple but why can't they give me an option to skip it? After all, iLife was already installed.
I finally got it working by booting from disc 1 and did a clean install. It took me all night to re-download all the updates and reinstall many applications. Fortunately, I have my address book, calendar, and most of my works backed up to .Mac so it wasn't a total lost.
On the bright side. Now my iMac is working better than before. I used to have problem getting auto sleep to work but now it works perfectly. Safari also had problem accessing charts (but Camino was fine) in a few web sites like schwab.com. Now everything works.
Lenn and David. Thanks for all your helps.
Now I am looking for a better backup solution so that the recovery won't be this painful if disaster strikes again. Any suggestions?
Sidney

IMac won't boot after power failure during 10.5.6 update

Help!
Tried to update last night and at something like 80% install, we had a power cut. iMac won't boot at all now - get to a grey screen which tells me to restart. Don't have a wired keyboard. If I did - what are the steps to get this working again.
I believe I have a good backup, but don't want to risk as all the family photos are on the iMac.
Thanks in advance.

Thanks for the help, but can't even get to a screen where I could type anything! I know I'm being dumb here.

Imac won't boot after update

hi guys i am new to macs I bought this for my daughter and tried to update.The update said to hold the program button and push power,well now she won't boot up just a grey sreen and what looks like a file with a blinking question mark and a face..
I have a imac g3 400mhz with 256mb ram
osx and 9.2 i belive any help appreciated

The flashing folder icon is your iMac's way of saying, "where is my OS? I can't find an OS!" If this appears briefly and goes away, it's usually because the PRAM was reset recently. The 4.1.9 firmware does reset your PRAM in the process--but only if successful in its task. To fix this temporary hiccup, open the Startup Disk control panel and select the hard drive, then click Restart.
If this icon continues to flash, there are some steps you can try.
1. Reset the PRAM via Command (Apple)Option+PR at startup. Hold the keys down until the Mac chimes thrice. If your Mac starts normally after the third chime, end here.
2. Reinitialize the firmware. Enter Open Firmware mode (CommandOption+OF) and issue the following, pressing Return after each command:
reset-nvram
set-defaults
reset-all
If successful, the Mac should reboot itself. Stop here if this solves the problem.
3. If you have the iMac restore disc, or a disc with OS 9.1-9.2.1, boot it and run Disk First Aid from the Utilities folder to repair file structure errors. If you have DiskWarrior or TechTool Pro Classic, you will be able to do more thorough repairs.
4. If all of the above fail, you can reinstall OS 9 if you still need to do the firmware upgrades, but you should reinitialize the hard drive with Drive Setup if you also want a clean install. Drive Setup can be found in the CD's Utilities folder.
Nate

IMac won't boot after ram upgrade

For some reason, my iMac late 2013 3.4Ghz quad core i5 won't boot with new ram modules added. New ram is exact same specs as original that came with the iMac. I've tested the new ones on their own in the iMac, and the system boots up fine. Same goes with just using the original ram. But when I put all 4 together, the iMac doesn't boot up. Not even the chime.
Combinations I've tried are:
1-Old
2-New
3-Old
4-New
No boot
1-New
2-Old
3-New
4-Old
No boot
1-New
2-Old
3-New
4-empty
No boot
1-Old
2-New
3-Old
4-empty
No boot
1-New
2-Old
3-Old
4-New
No boot
1-Old
2-New
3-New
4-Old
No boot
The only combinations that work are:
1-New
2-empty
3-New
4-empty
Boot good
1-Old
2-empty
3-Old
4-empty
Boot good
I just got off the phone with Apple, and they are saying all modules have to be the same size. ie. all 4GB or all 8GB. Can't mix and match sizes. Which is strange, because I've never heard of this. My Mac Pro has different speed ram modules, with different sizes in it. As long as I install ram in pairs, it runs like a charm. I've even heard the new iMacs don't have to have ram installed in pairs.
I'm wondering if slot 2 and 4 are maybe damaged? I haven't tried using just slot 2 and 4. To my understanding, you have to use 1 and 3 first. Can anyone confirm this?
Also, I've read a couple of people had to wait 30 seconds for the chime when they installed new ram in their iMacs. I didn't wait 30 sec to see if it would boot. Never heard of any Mac taking 30 sec to just chime in. lol Has anyone else experienced this? Is there a fix? Tx.

CLICKY CLICK---> iMac: How to remove or install memory
Or
Apple>About This Mac>More Info>Memory: Double click "Memory Install Instructions" at the bottom right of window.
my iMac late 2013 3.4Ghz quad core i5
Conflicting info. Your system profile shows: Mac Pro, Mac OS X (10.6.8). Please update/correct.

IMac won't boot after log-in screen. wheel keeps spinning or blue screen

Hi there!
I have a problem with my 2009 iMac running on Leopard. It all worked fine over years until last week when I was doing some work and the screen just froze and the wheel didnt stop spinning. So i turned it off and back on. Then all i got was a blue screen and it didnt boot. Tried again to start in safe mode. Nothing. Then using my install dvd doing the HD check and repair. Said no damage. But still didnt boot. So i tried to reinstall the OS. Still didnt boot. At least now i'm seeing the log in screen again instead of just the blue or grey screen. But once i try to type my username in, the wheel starts spinning and it freezes again.
I'm lost! I dont know what else to do. Can someone please help and give some advice if there are any other options to get it bak to normal??
Thanks.

I have the exact same problem. IMac worked great until I installed the latest security update two days ago. I got a message that the download was not successful. After restarting the use, computer acts exactly as described above. Can't get it to complete startup. It acts like its trying to update firmware, but turns of in the middle of it.

IMac won't boot after Lion install

I have an Intel iMac circa 2007/2008. I just installed OSX Lion on it. After installation, the computer would beachball frequently and eventually froze completely. I had to do a hard-reset as the system was completely unresponsive.
Now the computer won't boot up. It gets stuck at the grey screen with an Apple and a spinner at the bottom.
Please help; this computer runs my small business.

How much RAM is installed? Lion will run much better with at least 4 GBs of installed RAM.
I would guess you updated from Snow Leopard and that Snow Leopard was not in good shape. Reinstall Lion to see if this fixes things for you:
Reinstalling Lion
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alterhatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion: Select Reinstall Lion and click on the Continue button.
Note: You can also re-download the Lion installer by opening the App Store application. Hold down the OPTION key and click on the Purchases icon in the toolbar. You should now see an active Install button to the right of your Lion purchase entry. There are situations in which this will not work. For example, if you are already booted into the Lion you originally purchased with your Apple ID or if an instance of the Lion installer is located anywhere on your computer.

IMac won't boot after updates,have to reinstall loin from recovery drive

I have a 27" iMac running 10.7.1 and love it, but every time I do a software update it won't boot, it just goes to white screen with spinning gear forever! I let it set there for an hour and it never changed. I've tried restarting it but it just stops at that point,so I have to restart holding cmd-r to go to the recovery partition and have it reinstall loin,i've tried reparing the drive and perrmissions but it still wont boot unless i reinstall loin. I have five other macs running loin with no problem, so why just my imac?

Hopefully you have AppleCare. If so, call Apple to see if this if you are afflicted with the dreaded motherboard problem.
BTW, this area is for discussing iMac G4s. Since you have an iMac G5 you will probably want to make future posts in the iMac G5 discussion area.

IMac won't boot after iTunes Match - Get diskos2 i/o error. Help!

So after almost 24 straigth hours up uploading songs to iTunes Match, I woke up this morning and my iMac wouldn't boot. Gets stuck on the gray screen with the apple logo. I booted in verbose mode keep getting a "diskos2 i/o error." With a little googling some people say it's a bad sector and to erase and reinstall Lion others say it's a failing hard drive. Disk Utlity in Recovery Mode says the drive is ok. Any thoughts out there on what I should do? Thanks!

I am having the same problem. The machine loads just to the point when it says "Loading Mac OSX", then its non responsive for hours. The keyboard and mouse still work, but it won't move past that point.
When I try to repair the disk, it gives me an error message indicating that the disk cannot be repaired. I am bad at backing up my files, so I want to avoid a fresh reinstallation.
The worst part is I had just purchased Disk Warrior, and that won't boot up.
If no solutions are found, does anyone know a way that to initiate the computer in disk mode, so I can hook up another Mac to it, and save all the files?
-alfredo

Imac won't boot after 10.6.8 update

Not sure where to start with this...
Just tried to boot after the latest 10.6.8 update and have the grey screen with the spinning disk.

I would suggest that you do the following as a start:
Repair the Hard Drive and Permissions
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. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
If the drive is OK then download the Mac OS X 10.6.8 Update Combo installer and reinstall the update. See if that resolves your problem.
If the above does not fix the problem then you will need to reinstall Snow Leopard:
Reinstall OS X without erasing the drive
Do the following:
1. Repair the Hard Drive and Permissions
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. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install the Combo Updater for the version you prefer from support.apple.com/downloads/.

IMac won't boot after OSX Intel update crash - Newbie needs help please!

Hi,
at the weekend I updated OSX on my IMac 17 with an Intel update. An error message said that the update could not be installed and that the update was sent to the trash - a restart was requested. Since that shutdown my Mac chimes and gets stuck at the white load screen (hard drive is quiet).
I've tried the following:
Holding Shift key upon boot to initiate Safe Mode - No Joy!
Apple+S to run disk utlity/console - cannot initiate to cmd prompt!
Just as a little background - I'm a recent Apple convert and typical Windows defector. I've seen the light after many years in M**soft environments (I even trained to MCSE) but my Mac OS knowledge is considerably lacking. Let's be honest - so far I haven't had any problems.
Any gentle help would be most appreciated folks - I'm not sure where to start and I want my baby back!
Many thanks.

Same here. I have an iMac 20". It has been upgraded to Leopard and running fine since I purchased it 2 weeks ago. I downloaded the latest OS/X update (100+MB in size) but the installation failed. The system requested a reboot but it has not been able to ever since. It simply keeps beeping with a white screen. I put the Leopard DVD in, held the "C" key, but nothing works. Now I have a system that won't work. From now on, I will shy away from getting the latest update .... I am planning to take it to the apple store

IMac Won't Boot After XP Installation

Hello everyone,
I recently purchased an iMac and I love it. However, today when I tried to install Windows XP Pro with Boot Camp on Leopard, after it restarted when it finished, it just came to a white/light-blue screen, and it also gives me the Mac startup sound, then it won't do anything.
I've tried to hold C down (I held it down for about 10 minutes) with the Mac OS X CD in there, which did not do anything.
Then I tried to hold T to do that firm ware thing, that just made it restart.
Then I tried to hold the ALT button down, which ended up giving me a mouse cursor for about 7~10 seconds, which ultimately led into a reboot, back to the white screen.
Any suggestions will be noted.
~I am going to try to call up Apple support tomorrow as I am not at my iMac this evening.
Worst comes to worst, I've got to take it in.
-Thanks

Hello everyone,
I recently purchased an iMac and I love it. However, today when I tried to install Windows XP Pro with Boot Camp on Leopard, after it restarted when it finished, it just came to a white/light-blue screen, and it also gives me the Mac startup sound, then it won't do anything.
I've tried to hold C down (I held it down for about 10 minutes) with the Mac OS X CD in there, which did not do anything.
Then I tried to hold T to do that firm ware thing, that just made it restart.
Then I tried to hold the ALT button down, which ended up giving me a mouse cursor for about 7~10 seconds, which ultimately led into a reboot, back to the white screen.
Any suggestions will be noted.
~I am going to try to call up Apple support tomorrow as I am not at my iMac this evening.
Worst comes to worst, I've got to take it in.
-Thanks

IMac won't boot after replacing hard drive and restoring from Time Machine

I was having problems with my iMac but upgraded to Lion when it came out. Had a few good days and then my hard drive died.
I had the drive replaced and the repair people put Snow Leopard on the new drive.
I then tried to restore everything from my Time Machine backup. At first when I tried to log on the computer wouldn't accept my password (i know it was right).
I decided to reinstall again using the snow leopard dvd i had. This time, the computer booted up (didn't ask me for a passord) and looked like it was in the process of setting things up. But Mail kept saying it was going to import messages but then quit and restarted a few seconds later. When i quit it it just came back again and again. I could see Chrome open behind it with my bookmarks in the toolbar and see other restored things, but the overall look was grey and not everything was there.
When i restarted from the HD and not the dvd i could never get past various shades of grey and the circling progress indicator. Never booted up at all.
I read about Lion having some restore hd functionality but it doesn't show up when i restart with option key. Am I in limbo between operating systems?
Any advice as to steps to take? I don't know much about this stuff.
Thanks for any help.

Yes, if you picked a Snow Leopard backup, that's what you got.
You could pick a Lion backup, and it would restore it, but that wouldn't create the Recovery HD, which you will need, sooner or later. See Using the Recovery HD. You'll need to re-download Lion for that to be created.
When you do that, after downloading but before installing Lion again, you might want to do this: Making a Lion Install disc or partition. Then if you need to reinstall Lion again, you can do it from that, instead of having to download it again.

IMac won't boot after upgrade to Maverick

First off, I have a Time Machine backup, so I'm not in really deep hot water yet, but...
Upgraded to Maverick from Lion 10.7.5 and let it run for ever and a day until it rebooted itself. Upon reboot, I got the grey screen with the Apple logo, then the little spinny thing beneath the logo disappeared...and nothing else happened. The iMac gets stuck like that and won't do anything else. I have only the keyboard and mouse connected to it — no external drives, no hubs, nothing else USB or FireWire. I can reboot to the recovery disk (which it now says is the 10.9 version). I have verified permissions, repaired permissions, verified disk (no problems) but repaired disk anyway, tried reinstalling Mavericks (and let it run overnight but got the exact same result) and even booted in single-user mode to run fsck. Nothing so far has worked.
I'm stuck with a grey screen and the pretty Apple logo, but can't get to the login screen or do anything else with it. Suggestions?

I spoke to Apple support and they've given me some suggestions to try when I get home tonight:
Mac OS X: Gray screen appears during startup
OS X Mavericks: Reset your computer's PRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
Mac OS X: What is Safe Boot, Safe Mode?
Resolve startup issues and perform disk maintenance with Disk Utility and fsck
Mac OS X: Starting up in Safe Mode
Startup key combinations for Intel-based Macs

IMac won't boot after trying to migrate files to macbook?

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