Q: Target Boot Mode Freeze

Hi, I am trying to boot a 2008 20" iMac with a busted up screen into Target Boot Mode. It comes up on the HOST 2010 27" iMac screen fine and well, but when I choose the Target iMac it freezes and sits there. It does not boot. It goes into the normal Target Disc Mode fine, just not Target Boot Mode. Any ideas why it freezes and will not boot? Thanks.

iMac, Mac OS X (10.6.8), 2008 20" iMac

Posted on Apr 10, 2016 1:12 PM

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Q: Target Boot Mode Freeze

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by Duane,

Duane Apr 10, 2016 1:17 PM in response to DWDDoolittle
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Apr 10, 2016 1:17 PM in response to DWDDoolittle

Target disk mode -> OS X Mountain Lion: Transfer files between two computers using target disk mode
Target display mode -> Use your iMac as a display with Target Display Mode - Apple Support

It sounds like you are putting your 2010 27" iMac in Target display mode so that the 27" iMac is acting as a display.

It is unclear if you are booting the 2008 20" iMac in target disk mode or not.
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by DWDDoolittle,

DWDDoolittle Apr 10, 2016 1:25 PM in response to Duane
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Desktops

Apr 10, 2016 1:25 PM in response to Duane

Sorry, the 20" is started in Target Mode and the Host 27" is started holding the Option/Alt button to select start-up discs. I see the 20" with the Firewire Icon and when I select it it simply freezes and does nothing.
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by DWDDoolittle,

DWDDoolittle Apr 11, 2016 1:06 PM in response to DWDDoolittle
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Desktops

Apr 11, 2016 1:06 PM in response to DWDDoolittle

Anyone else ever had this issue in Target Boot Mode?
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by Duane,

Duane Apr 11, 2016 2:28 PM in response to DWDDoolittle
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Apr 11, 2016 2:28 PM in response to DWDDoolittle

In the process of your 20" getting the broken screen is it possible that the hard drive was also damaged? Did the iMac fall?
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by DWDDoolittle,

DWDDoolittle Apr 11, 2016 2:42 PM in response to Duane
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Desktops

Apr 11, 2016 2:42 PM in response to Duane

I am not sure. My son acquired it free recently at a dump free store. It powers on with the backlighting. It looks like they tried to remove the screen, as the outer glass screen cover is missing. Looks like they botched it for sure haha. Once I get a Mini DVI to VGA Adapter I will try an external monitor. We will see what happens. In Target Disc Mode I see their files, etc. that were left on it. Thought we might be able to fix it up or use to for parts.
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Q: Target Boot Mode Freeze

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by Duane,

by DWDDoolittle,

by DWDDoolittle,

by Duane,

by DWDDoolittle,

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