How do I carry out disk repair or safe boot...

...if my imac freezes at grey screen and won't recognize any keyboard?  It does recognize the wireless mouse.
The computer started freezing at the grey screen last week.  I tried disk repair, no good.  I tried system restore, no good.  It still stops at the grey but I can't try resetting PRAM or booting in single user mode or anything because it won't recognize either a wireless or a usb keyboard.
Ist kaput?

Not a lot you can do if the keyboard is not recognised. I suppose if you had another Mac you could connect them via FireWire or Thunderbolt and try to repair using Target Disk Mode.

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    [Using Disk Utility in Mac OS X 10.4.3 or later|http://docs.info.apple.com/article.html?artnum=302672]
    [Disk Utility's Repair Disk Permissions|http://docs.info.apple.com/article.html?artnum=25751]
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  • Having issues with my mac, wanted to do the "Disk repair" but it wont letme

    i've been having some problems with my mac recently, some programs just keep shutting down for no reason apparently, so i though maybe i go into disk utility and tried to press Repair Disk button, but i cant because it transparent and you cant press it , now when i did verify disk, it told me that there is something wrong with the disk and i should repair it, but i cant , any clue what i can do about it
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    Message was edited by: mp057812

    [Resolve startup issues and perform disk maintenance with Disk Utility and fsck|http://docs.info.apple.com/article.html?artnum=106214]
    [Using Disk Utility in Mac OS X 10.4.3 or later|http://docs.info.apple.com/article.html?artnum=302672]
    [Disk Utility's Repair Disk Permissions|http://docs.info.apple.com/article.html?artnum=25751]
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    3. Click the First Aid tab.
    4. Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
    5. Select your Mac OS X volume.
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    Then Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes."

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    I loged off my computer and I need to go back on the my sound wasn't working. I need my sound to work again. In the top right coner when I log out in red says, 'Safe Boot'. Could someone please help me?

    Welcome to Apple Support Communities
    Restart and your Mac should start up in normal mode, so you can use speakers again.
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  • Disk repair failed / should I reformat my drive / how to format and restore

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  • Inter company Repair that was carried out zero Value

    hai Experts,
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  • Disk Repair- how to??

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    Jill,
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