How long to reboot after software update?

I just did a system update and it had to reboot when finished. It got as far as a blue screen with a spinning gear-wheel and that's it. It has been like this for 15 minutes. Is this normal? Will it hurt if I use the power button to shut it off, then restart? It has never taken this long before.

I assume by blue screen and spinning gear you are referring to the shutdown portion of the restart rather than the restart itself. If this be the case then 15 minutes seems a bit long. Normally, I don't like recommending abnormal shutdowns because of the possible problems they can cause, but in this case it should be OK. However, I strongly suggest you first boot from your Snow Leopard DVD and repair the hard drive and permissions:
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.
This will hopefully assure no disk damage from the abnormal shutdown. If all is OK then restart the computer normally.

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If many Permission are repaired, or any Directory errors are found, you may need to re-apply some the latest/biggest updates.
I only use Software Update to see what is needed, then get them for real via...
http://www.apple.com/support/downloads/
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Don
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This helps the community, keeps the forums tidy, and recognises useful contributions. Thanks!)

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Follow us on twitter @VZWSupport

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I am not sure this will work as you can't boot properly, but try restarting it holding down the mouse to open the CD tray.
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Try this - Reset the iPad by holding down on the Sleep and Home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons. (This is equivalent to rebooting your computer.) No data/files will be erased.
If there are multiple apps trying to download at once, only one can download at a time and the rest say "Waiting" until it is then their turn. Try this. Double tap the icon of the Waiting app, and it should resume the download.
How to Solve the Problem of An iPad App Download Stuck on “Waiting”
http://ipadacademy.com/2012/06/how-to-solve-the-problem-of-an-ipad-app-download- stuck-on-waiting
How To Get Rid Of Your iPad App Download Frozen Problem
http://www.sidelineapple.com/how-to-get-rid-of-your-ipad-app-download-frozen-pro blem-and-not-lose-years-of-your-life-video/
iTunes: How to resume interrupted iTunes Store downloads
http://support.apple.com/kb/ht1725
Another thing to try - Turn the iPad Off & then back ON.
If that doesn't work:
• Log out of your iTunes store account. Go to Settings > Store > Sign Out Then press the Home button.
• Then press and hold the Home and Sleep buttons simultaneously and don't release them when it brings up the Turn Off screen; keep holding them until the Apple logo appears.
• After restart, the Waiting should be gone.
 Cheers, Tom

How long to reboot after software update?

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