how can i get my mac to boot from cd?

okay im new to this i need big help. my school got a new mac lab and they threw away the old ones. i asked for one and they gave it to me. its a power mac g4. im very knowledgeable about computers, the computer needed some work and it turns out that the harddrive had been completely formatted. there is no operation system on it and i do not have a boot cd. ive tried booting ubuntu linux but ubuntu requires a os to be on the computer. i have a live cd for linux from scratch and i would like to just put linux on it but every time i try to boot from a cd i just get the grey screen with the blinking file. to make matters worse i dint have a mac keyboard so im using a usb one. ive tried cmd-opn-f-o and holding down c and even comd-opn-shift-delete and nothings boots from the cd. ive put 15 hours in the past day to get this to work and im running out of ideas. PLEASE I BEG YOU. PLEASE HELP!!!! i will be eternally grateful. thanks again!
the problem with most of your answers is that ive tried al the comands and the wont work. ive tried just holding option key and nothing comes up. ive tried holding c key and nothing comes up. same with cmd optn f o. could it be the keyboard? i dont have a mac keyboard just a usb pc keyboard.

5 Responses to how can i get my mac to boot from cd?

  1. Normally, to set an alternate startup volume, such as a bootable CD or DVD, you should use the Startup Disk system preference. However, if your regular boot disk is damaged or if you can’t set the CD or DVD as a startup device from the system preference, try one of the following options:

    * Restart your computer and immediately press the Option key. Icons for all available startup volumes will appear. Click the one you want to boot from, and then click the right arrow button to complete the startup process.

    * Restart your computer and immediately press Command-Option-Shift-Delete. You must press all the keys at once. The computer will start to boot from the CD or DVD drive. If there isn’t a bootable disc inside the drive when you begin the reboot, the computer will attempt to boot from another partition or drive.

    * Restart your computer and immediately press the c key. The computer will look for a bootable CD or DVD and, if it finds one, will use it as its startup device

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  2. im very knowledgeable about computers,
    ??????

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  3. Don’t mind the other answers, this is the easiest. Put in your disc, then start up and press OPTION on the keyboard. Wait. Then a screen pops up and asks what to boot.

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  4. Kendall Roberts

    Despite comments above, we can’t speak doggy language and dogs cannot speak our language. This is essential when it comes to training. You’ve to choose words for commands that both you and your dog will remember. Be careful not to choose really common words or else your dog will be simply confused when this word keeps appearing within the middle of a sentence. A typical word often utilized in training dogs is ‘come’. For this example, it may possibly be far better to use a slang version or combine ‘come here’ into a single short word.

    The crucial thing is that when you decide on a word for a command to stick with it and be consistent, otherwise your dog will turn out to be baffled.

    I know it may be hard, particularly should you come home to your new TV pulled off the cabinet, to usually use pre-selected words when talking for your dog. Your dog doesn’t speak human language and will only know what those few words you’ve trained it with are (as well as the tone you have utilized). So should you begin utilizing other words or different tones your dog will not understand.

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  5. inclusive_disjunction

    1. Ubuntu does NOT require an operating system to be on the computer. I’ve installed it to a blank hard drive many times.
    2. The Linux from Scratch LiveCD is for x86 processors. You have a PowerPC processor. Thus it will never boot.
    3. Try an ISO image from this page instead.

    http://cdimage.ubuntu.com/xubuntu/ports/releases/lucid/release/

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