Mid2007 macbook trying to install retail copy of 10.6.3 after install fails say bless tool unable to set boot disk help!

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Mid2007 macbook trying to install retail copy of 10.6.3 after install fails say bless tool unable to set boot disk help!

Mid2007 macbook when trying to install retail 10.6.3 screen comes up installation failed because cant set start up disk try startup utility. when try startup utility it says bless tool cant set boot drive when called apple support guy said my harddrive was going out even though the computer had no ill signs before inserting install disk. I bought new harddrive and installer does same thing . Then apple sent me a new disk - same thing . I have ran disk utilities numerous times tried to reinstall numerous times even hooked external harddrive and ran tech tools from it one side note the startup key commands do not seem to work as in apple op pr,apple op of etc but will go to option start. I realize it is getting old but something is keeping software from loading i also read where i could take ram out for awhile i did this. No change. Taking to apple store is not option any and all suggestions welcome

MacBook (13-inch Mid 2007), Mac OS X (10.6.3)

Posted on Apr 5, 2013 6:10 AM

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Answer 1

ds store

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Apr 5, 2013 5:22 PM in response to bkhall78

Sounds like the machine has a firmware password as you cannot change the startup disk (stored in NVRAM) and only the option key at boot works.

You will need to option boot from the 10.6 disk and use the Firmware Password Reset utility and enter the password to disable it.

If you forget the password, take the machine to a Apple Authorized Repair and they can bypass it in hardware.

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