ChrisTitus.com Resources for IT Professionals

24Jan/120

Fix for Kernal Panics in Mac OSX

1) SMC RESETTING
Shut down the computer.

Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.

On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.

Release all the keys and the power button at the same time after 25 seconds.

2) PRAM SETTING

Shut down the computer.

Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down

Turn on the computer.

Hold the keys down until the computer restarts and you hear the startup sound for the second time.

Release the keys.

IF THE ABOVE STEPS DOES NOT WORK THEN PLEASE FOLLOW THE BELOW TROUBLESHOOTING STEPS.

3) BOOT TO STARTUP MANAGER
Press and hold the option key and start the machine then the machine will boot to the startup manager.

Check in the windows the partition of your HD shows or not.
If it shows then the machine is working fine but if it does not show then the Hard disk is gone for a toss.

4) INSERT THE MAC OSX INSTALL DVD (IF THE HD IS SEEN IN STARTUP MANAGER)
Boot to the disk.

If still you get the same error which you have resported then it will be 2 possible hardware issues.

Either the Hard disk or the Logic Board.

If you are able to boot through the disk and get the language selection link then go to the first option SELECT ENGLISH AS A MAIN LANGUAGE.

Then very next page you need to click on utilities option (Found on the task bar at the top)

Select the disk utility and in that page you get 3 options
1.Some HD size in MB with any of the HD company name
2. Macintosh HD.
3. optical drive

Select the first option and do the repair disk only.
(NOTE: In the install DVD do not run the repair disk permissions as it sets the default permissions)

While repair disk if you get the error that repair disk failed and backup data and reinstall sort of error then you need to do the erase nad install where you will be losing all the data but can restore it if you have time machine backup.

Filed under: OSX No Comments
29Sep/110

Release and Renew IP in OS X

I recently had some issues where a bridged virtual machine in osx would disconnect my osx side network connection. A simple release and renew would fix this. Simply open up Terminal in OSX and type:

sudo ifconfig en0 down
sudo ifconfig en0 up

Obviously if you are renewing another interface other than your Ethernet port, en0 would need to be changed to the corresponding short name of the interface.

 

Filed under: OSX No Comments
3Oct/101

Hackintosh Install on Intel DP55WB

Many people use 10.6.4 when it comes to the DP55WP board, but I hate dealing with system updates on Hackintosh. So, instead I've installed 10.5.8 on my Hackintosh. First, Lets review what kexts we need for the DP55WB.

Audio-Realtek* ALC888-VC2-GR - AppleHDA.kext
Network-IntelĀ® 82578DC Gigabit - AppleIntelE1000e.kext
Video-ATi HD 3870 (This is what I have installed) - ATY_Init.kext
Download Kext Zip file

You can do a standard install using Tony osx86's guides, but I am unable to use those guides because this will be using a modified kernel on 10.5.8. So we have a vast array of custom kernels from people to choose from. Qoopz 10.5.8 Kernel worked great for me. I am using the iDeneb 10.5.8 teams build. Now for the build process:

Required startup options (Kernel Flags)
-busratio=20 (This will vary depending on which i5/i7 Core you installed. Click image below for the full list of busratios on all i3, i5, and i7 processors.)
ibusratios
BIOS Settings
-AHCI on SATA Connections
-Speedstep off (VoodooPower kext was giving me kernel panics)

OS Installation Options
-Default Options
-Select Drivers
--Chipset -> SATA -> AHCI
--Video -> ATI -> ATi_Init.kext
-Fix
--Audio Fix (AppleHDA.kext Modification)

This will get you into the OS and from there you will need to install one more kext. load up the K7 Kext Helper tool and select AppleIntelE1000e.kext -> Install. Now you should have a fully working OSX 10.5.8.

Couple optional settings
---------------------
Edit com.apple.Boot.plist to add the busratio=20 flag. This saves you from having to enter it every time you load up osx.
Kernel Flags
busratio=20

Local Time Package
Run the local-time.pkg that comes in the Mac Setup.zip file that you downloaded above. This will fix the dual booting time problem.

Filed under: OSX 10.5.8 1 Comment