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10.7.2 Install on a Dell Inspiron 14Z(N411Z)


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The installation always seems to boot to a grey textured graphics screen, showing pictures of a desktop and a picture of a laptop alternately. It seems to ask the user to press the power button. Also, I can move the touchpad mouse cursor around.


I have tried the following without success:

patching AppleIntelCPUPowerManagement

using 10.6.8 AppleACPIPlatform and IOPCIFamily

removing NullPowerManagement

using Mac8,1 smbios


Dell Specs:

Sandybridge HM67


Core i5-2430M


Any help is much appreciated.

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likely needs dsdt

with linux live like ubuntu or mint


sudo apt-get install acpidump iasl


Then run the following commands on a terminal:



mkdir ~/acpiinfo ; cd ~/acpiinfo

sudo acpidump > acpidump.txt

# enter password

sudo acpixtract acpidump.txt

ls *.dat | while read i; do iasl -d "${i}"; done

pid=`sudo dmidecode -s system-product-name`

vid=`sudo dmidecode -s system-version`

name=${pid// /}.${vid// /}

mkdir "${name}" && cp *.dsl "${name}"/


then zIp the /home/username/pcnamefolder and post

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The problem is not DSDT. I have to chalk this one up as a LOL. Here is what happened:

After trying to install numerous times, I got pissed and took it out on the Dell by slamming the keyboard with my fist. All of a sudden, the install screen showed up and I was able to install that damn lion.

The "desktop" I was talking about is actually the apple wireless mouse and the "laptop" is the apple wireless keyboard. Apparently it was looking for the wireless mouse and keyboard. The only key that breaks the mouse/kb waiting screen is the space bar. Also, only some version of AppleACPIPS2Nub/ApplePS2Controller enables the laptop keyboard and trackpad. Adding to the complication is that only the USB 2.0 port in the left is active, so if you use it for a USB install drive, you'll have to get a USB hub in order to use USB wired/wireless mouse/kb.

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