So it seems like there are many ways to dual boot windows 7 with Snow Leopard or Lion on LENOVO G770.
May 12, 2012 I decided to use Windows 7 EasyBCD 2.1.2 boot loader to replace the Chameleon boot loader in the first partition 200MB MBR and it worked with the WDC 750GB. Format the MBR boot loader (200MB), set a drive letter to it (as Miller’s), use EasyBCD to make it bootable, set the menu and done. Here is the video.
2012-05-09 Dual boot i5 2500k Sandy Bridge GA-H61MS2H desktop system using Easy BCD.
2012-04-19 Another procedure on Lenovo laptop with hard drive has no OS installed by Miller (a reader) : Dual boot windows 7 and lion.
This is from a reader.
I only installed SL 10.6.3 to be able to create the UniBeast USB key! I installed Lion on an external hard drive. Once I got MulitBeast installed and all the mods you suggest in your video done, I used UniBeast to restore the Lion partition to an empty partition I created on the internal HDD. I then managed to get dual working by using EasyBCD. I had to assign a letter to the MBR partition using disk management in Windows 7 so that EasyBCD could access the BCD file. Adding an entry under the Mac tab using MBR mode instead of EFI mode enabled dual-boot successfully!
Some helpful info for EasyBCD – while trying to modify the MBR with EasyBCD a second time I messed it up by hitting “Install BCD” under “Create Bootable External Media” instead of “Write MBR” under “MBR Configuration Options”. This made the hard drive unbootable! I fixed this with a Windows 7 install disc I had for another computer by booting into safe mode and using the automatic repair options. After the repair though, EasyBCD was unable to make changes to the BCD file on the MBR partition as it was locked by SYSTEM.
To get around this I ran a command prompt as administrator (Start->Run->cmd – right click on cmd.exe and choose “Run as Administrator”). I ran “bcdedit /export test.bcd”, which created test.bcd in the current directory. I then opened this file with EasyBCD, made the addition for Lion, then saved by hitting “Write MBR”. I then restored the BCD file in the command prompt with the command “bcdedit /import test.bcd”. These steps would be necessary if EasyBCD reports that the BCD file is locked when it starts up.
Install Chameleon to the MBR partition to dual boot.
On my Lenovo Sandy Bridge i5, dual boot with EasyBCD is not possible, but if install chameleon boot loader over the mbr partition, it will boot faster than the original windows MBR. So, make sure booting internal hard drive Lion partition with unibeast is working. Download the idogusblion zip file with all folders and files needed.
Go to applications folder and execute “showallfiles”, then go to Disk Utility to erase and format the MBR (200Mb) partition for chameleon boot.
Copy 4 folders and 2 files from idogusbboot to chameleon partition
Now we can install chimera 1.5.4 (this will work with everything) on to this chameleon boot partition.
Now, we can boot straight from the hard drive, but it will by pass windows and just start lion partition. We need to put menu into the com.plist file in our internal partition extra folder so we can see windows partition.
Run Kext Utility when done. Now we will have a boot screen with 2 icon, windows and lion1073.
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