Mac OS X Snow Leopard 10.6.8 was Apple's first release that includes universal kernel support for Sandy Bridge systems. Performing a Combo Update on these rigs can cause system crashes and general instability. We've created this simple guide that will allow any Socket 1155 Sandy Bridge system to update cleanly to 10.6.8 and be ready for Lion.

• Snow Leopard 10.6 8 Combo Update
• 10.6.8 Combo Update Download
• Mac Os X Server 10.6 8 Combo Update
• Os X 10.6 8 Combo Update

1. Reapply combo updater The first option is to download the latest OS X 10.6.8 Combo update and apply it. This update was released before the security update and applying it might revert some.
2. 1st Download: Drop in DVD upgrade disk for Intel machines with Leopard 10.5.8 installed. 2nd Download: Full DVD install for Snow Leopard 10.6.3 3rd Download: 10.6.8 combo update (v1.1 = Build 10K549) 4th Download: Snow Leopard 10.6 Internal Edition 5th Download: Apple update fixes OS X 10.6.7-only re how fonts will display.
3. The 10.6.8 10.4.11 10.5.8 Combo Update, for example, can be installed right on top of an existing 10.7, 10.4.11 or 10.5.8, 10.6.8 install. Just go to APPLE.COM/DOWNLOADS and download the latest 'COMBO' updater for your Operating System. Search tip: enter 'combo' in your search on Apple's download page.
4. Legacy Kernel 10.6.8 v2.zip (Copy to USB flashdrive or windows partition). Optional: Mac OS X Combo Update 10.6.8.dmg from Apple site pre-iATKOS or download via AppleUpdate after iATKOS install. installing iATKOS S3 1). Boot up your iATKOS S3 DVD. When loaded press forward (-) on main screen but do not continue on the next page.

1. Install and configure system using iBoot + MultiBeast

Archival of 10.4.10 installers and accompanying files:10.6.7-4.2-4C199-XCODE.dmg (Standard Xcode 4.2.

2. Run UpdateHelper
3. Reboot

Snow Leopard 10.6 8 Combo Update

4. Run

10.6.8 Combo Update Download

10.6.8 Combo Update
5. Reboot
What's causing the kernel panic? Mac OS X doesn't recognize Sandy Bridge systems, as every one was shipped with a special version of 10.6.7. Since we use either the 10.6 or 10.6.3 retail DVD, then try to update to 10.6.8 it doesn't know what to do with certain configurations as it's completing the update, and crashes.

Mac Os X Server 10.6 8 Combo Update

UpdateHelper deletes the ACPI_SMC_PlatformPlugin.kext from IOPlatformPluginFamily.kext plugins folder (in System/Library/Extensions). The Combo Update will replace this kext.
Hope this clears up any 10.6.8 confusion, and helps you get ready for Lion!

Os X 10.6 8 Combo Update