IMac won't boot up after latest update. Any suggestions?

I just updated my software (the latest from apple), then my iMac won't boot again.

There you go. Your HDD is failing hence its not booting. You need reformat the HDD
To reformat, same steps: Boot to the install disc > get past the language selection > You will see Welcome to Blah Blah Blah > just hit continue > There should be something there called erase and install
BUT
1. if you are absolutely sure that Time machine has BACKED-UP all of your files then proceed above
2. If not, if you have another mac: connect it via firewire then google Target Disk mode. Basically you want to copy all your files from the damaged machine to the new mac to serve as a backup
3. if yo dont have another mac: get an external HDD, install Mac os X on it, boot to it then back up your files
to do this
a) Plug external HDD
b) Boot to the CD restart and hold C
c) Get past language selection and keep hitting continue
d) when it asks you where you want to install Mac os X > select the external HDD
e) once its installed. Restart the computer and hold "Option" key. You should now see your external HDD as one of the boot drives. Select that and you'll boot into it
f) once inside the external HDD OS, you will see the internal HDD(damaged drive)browse/navigate through it and start getting your important files

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IMac won't boot up after latest update

Hi
I'm a newbie to this forum but any help would be greatly appreciated please
We've had our iMac for 2yrs now no issues but when I went to do the latest update today it's gone a bit weird!
I did the install and relaunch like I always do but when rebooting it got stuck on the white start up page with the apple logo and a circular timer
Ive rebooted it several times and performed a PRAM and SMC reset but still same issue. The fan started to run fast but the resets seem to have solved that?
Any ideas what's wrong and how to fix it please?
Thanks in advance

The reason Allan was asking what update is this will affect how it's handled. However without knowing I believe the most wise thing to do it take the machine into an Apple Store or AASP where they can help you. One of the most recent updates was a EFI update for 2011 iMacs. If your iMac is a 2011 machine (released after May 2011) and that is the update in question then the only recourse is taking it in as mentioned.
There are a couple of things you can try though, first is restart using the Install Disk or if you are on Lion restart and when you hear the startup tone hold down the Option Key. Then choose Disk Utilities and run Repair Disk Permissions, do this 2x. Then exit DU and try to restart normally. If that doesn't work then try rebooting in Safe Mode, this will clear some caches. It's possible one or more has become corrupt. If neither of these work then definetely take it in.
Finally please please please complete your profile, use Your Stuff in the upper right of this page then click Profile and complete. This is vital to helping you. At this point we know nothing about your system, what version of OS X, which iMac, etc...

IMac won't boot anymore after power cut

Thanks to the great storms in New Jersey, my iMac does not boot anymore after a power cut. Does not get past the apple logo screen with the spinning wheel and keeps rebooting every 2 minutes.
I was able to mount the HD via Firewire on a host machine and the disk seemed fine.
I booted from the Install disk and ran Disk Utility - seemed fine though I could not verify the disk permissions ?
One other thing - I seemed to remember the white light (front bottom right) was blinking before during start-up. Now it goes and stays black after couple of seconds.
Help please,
Philippe

HI Phillipe and Welcome to Apple Discussions...
If you haven't done so, try running the Apple Hardware Test.
http://support.apple.com/kb/HT1509
I doubt repairing disk permissions can't help this problem. It sounds like a hardware issue.
*"I booted from the Install disk and ran Disk Utility - seemed fine though I could not verify the disk permissions ?"*
When you ran Disk Utility via Firewire, did you actually Verify the hard disk for errors?
Carolyn

Powerbook G4 (OS X 10.4.11) won't boot up after latest security update

My G4 failed to reboot when restarted after latest security updtate.
The gray screen with apple logo and rotating gear stays on forever.
I tried booting in safe mode but same thing occurred.
I was able to boot in single user mode and run fsck -yf and it ran fine.
Then when I tried to boot again, same thing all over again.
I am guessing there must be some problems with new updates in the start-up folder or something. But I am not sure how to get rid of the files related to the new updates. Your help would be really appreciated. Oh, I was also able to run disk utilities application when I inserted Mac OS X installation dvd and booted from it. Then when I try to boot from HD, the same thing all over again...

I just spent a good 3 hrs or so trying to figure out why my imac running os x 10.4.11 wasn't rebooting after I downloaded the latest security update 2009-001. I finally got it running again after browsing the many helpful comments from past rebooting issues. Here are the steps:
1. On another computer, you'll have to download the security update that you believe froze your mac. In my case it was the 2009-001 update.
2. Save this file to a usb key, or in my case, to my LACIE backup drive.
3. Once downloaded, connect the USB key or backup drive to your mac.
4. Insert your install disc that came with your mac. (I installed disc 1)
5. Power down your mac. ( I did so by pressing and holding the power button on the back)
6. Press and hold the 'C' key on your keyboard as you restart your mac.
7. Let go of 'C' as the apple logo and spinning wheel come on. The start-up disc should start to run.
8. Choose your language.
9. At the top of your desktop you'll see 'Terminal'. Start it.
10. at the prompt, type "mount" to see a list of your volumes (in my case, the volume was LACIE).
11. type "find /Volumes/nameofyourUSB/*.dmg" Ex. "find /Volumes/LACIE/*.dmg" (This step will give the path of your update).
12. type "hdiutil attach /Volumes/nameofyourUSB/pathoftheupdate/SecUpd2009-001Intel.dmg" (Note the space after hdiutil AND attach)
13. type "/Volumes/Macintosh\ HD/usr/sbin/installer -pkg /Volumes/Security\ Update\ 2009-001/SecUpd2009-001Intel.pkg -target /Volumes/Macintosh\ HD" (Note the spaces again. Took me a few tries before I finally got it. If you get it right, you'll notice your hard-drive start to be active. Let it do it's thing before you exit Terminal.
14. Exit Terminal.
15. Go to 'Utilities' at the top of the desktop, select 'Startup Disk', and choose your OS (in my case, OS X 10.4.11).
Good luck!

IMac won't boot up after Lion 10.7.4 update

I made the mistake of updating my mid-2010 27" iMac earlier this week and now it won't boot up. It gets to the gray screen with the Apple logo and the progress bar to finalise the update, but the computer shuts down about 25% of the way in. Fortunately I could boot up to the recovery HD and was able to copy my files over to an external hard drive.
I have a Genius Bar appt today to get it looked at, but wanted to post this in case anyone else had this problem.

Try turning off the computer with the power button, then turn it on to allow it to restart.

TS3927 Why won't itunes open after latest update?

Why won't itunes open after the latest update?

See iTunes launch errors caused by iAdCore.dll.
Review the rest of the user tip if required.
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I ran the latest update last night & now can't turn on my phone. All I get is the iTunes emblem & a picture of the plug in on a charger. any suggestions besides a reboot. Don't think I've ever backed up my phone.

If you get that screen then your iPad is in recovery mode.
You will have to restore it on a computer using iTunes:
Read this: http://support.apple.com/kb/ht1808
Follow the instructions very carefully.

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Please define "not working".

IMac won't boot up after install of latest Mountain Lion update

I installed the recommended software update to Mountain Lion last night on my 27" i3 iMac (8 GB RAM).
When I tried to boot my iMac this morning the "install updated software" pane was visible and it note that the installation would be "less than a minute" before it was completed. After half an hour I left for work.
Am I alone on this and what is a possible rememdy?

Try turning off the computer with the power button, then turn it on to allow it to restart.

My Mac OS 10.4.6 won't boot normally after new updates?

Pardon the fact that I'm a newbie...
It seems like a lot of people are posting about problems with the latest Mac OS updates. I installed some new updates Sunday night, and the system needed to be rebooted.
I was working, multitasking with Fire and Word, and in the process of printing a large Word document to my Acrobat printer, my system crashed. I could move the mouse, but there was no response from the keyboard or from my touch pad clicker. The only solution I found was to hard reboot.
Upon the reboot, there were no icons on my desktop, and neither my mouse button nor keyboard are functioning. However, I could move my mouse cursor.
I can boot in safe-mode, and all my files appear to be intact. I reboot from safe mode back to normal mode the problem in normal mode is the same. Clearly Mac OS isn't loading like it should.
I'm used to WindowsXP where multiple reboots usually solves the problem, but I gather thats not wise, and I really shouldn't be hard-rebooting.
Can anyone help me and give me some needed intuition with this? I'm a newbie with Mac, but pretty comfortable with Unix.
Thanks in advance!
MacBook Pro Mac OS X (10.4.6) 2.16 GHz Intel Core Duo, 2GB DDR2 SDRAM

Jake, I didn't have any problems with the updates.
I always run Disk Utilities permissions repair and verify disk before and after an OS or Security update. If verify disk reports an error, run Disk Utilities from the Installation Disc 1, specifically Repair Disk. (Some think running permissions repair is useless. I don't agree and have seen this clear up problems.)
If that doesn't do it, go back to Safe boot and check the startup items. A third-party startup item may be the problem.
Good luck. Don't want to rub it in, but I've been running since the MBP arrived on March 30 without any problems. But I've had glitches in the past, and probably will again in the future. That's life.

Help! iBook won't boot up after latest security upgrade....................

I have an iBook G4 12 inch screen mac. I have recently updated with the latest Apple security update (15/9/08)Since installing the update my iBook has failed to boot up successfully. There is no start-up chime and the boot stops at the grey screen with the Apple logo and goes no further. I have tried safe mode, won't go there, have tried various other tips, holding down various keys on start-up, all with no joy! Does anyone have the same problem and does anyone have any answers?! Thanks in advance!
Jim

Thanks, Cornelius. I am just afraid now, is it safe or should I forget about reinstalling the most recent update? It is moot right now though anyway, because I still can't get my computer to fully boot up. At least attempting to book with the OS 10.5 disc in the drive it does not power down, but it is getting stuck for a long time (over 30 minutes) on the gray startup screen with the apple and the DVD drive repeatedly spins and stops, then finally just seems to stop spinning and gives up.

IMac won't boot up, after Disk Utility

I was running onyx and it said to run my osx install disk and use disk utility and the repair disk function, so I did. There was an error message like node error and wouldn't get past checking catalogues before stopping. So I quit that and just tried to reboot, but it wouldn't work, just stuck at the apple logo and spinning circle. Is there anyway to fix this?
21.5" iMac Mac osx 10.6.5

Reinstall OS X which will not erase your drive.
Reinstall Snow Leopard
Booting From Snow Leopard 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.
Repair the Hard Drive and Permissions then Reinstall
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. Complete the OS X installation. If you have a good Time Machine backup then select the option to Restore from a TM backup in the installer's Utilities menu.
If DU reports errors it cannot fix, then you will need to reformat the drive and reinstall Snow Leopard from scratch.

MBP won't boot up after Battery update

I downloaded the update this afternoon on my MBP. I restarted my machine but it would not load OSX. It keeps going to grey screen with the apple logo and waits there for 6-7 minutes and restarts itself. It keeps doing this over and over. I've tried holding down the keys to reset memory, I've restarted it plugged in, and unplugged. I inserted Disc Warrior. Nothing has worked. Any ideas?

Try this
Boot holding down Apple/S and don't let go until you see scrolling text.
When that stops and you see a root#: prompt enter
fsck -fy
Let it run through all the checks and repairs.
If it fails first time, at any time, or finds and fixes a fault - run the command again and keep doing so (some fixes can take several passes) until it says "Appears to be OK" then enter
reboot

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same here i downloaded itunes 11 last night and this morning i get an "error -42408" so altough my itunes recognizes my ipod, it simply wont sync and asks me to eject manually. I tried restoring and it still wont sync.
here's a link with some solutions
http://forums.macrumors.com/showthread.php?t=1499345
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"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)

IMac won't boot up after latest update. Any suggestions?

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