Hi and welcome to InfiniteMac forum.
To install kext, driver for example your chipset controller or graphic card, you need some basic console commands. This is a basic, usual routine to install some kext.
Suppose that kext is in the root of your usb drive. If not, just point to the folder containing the kext by adding /~FolderName/ before ~DriverName.kext
Become 'su' first
You can list your Partitions/Volumes with
Copy kext:
Code:
cp -r /Volumes/USBPartitionName/~DriverName.kext /Volumes/~LeopardPartitionName/System/Library/Extensions
*Do the same for every kext you want to install.
Change permissions and ownership to new installed kext(s).
Code:
chmod -R 755 /Volumes/~LeopardPartitionName/System/Library/Extensions/Kextname.kext
chown -R root:wheel /Volumes/~LeopardPartitionName/System/Library/Extensions/Kextname.kext
*Do the same for every kext you installed.
Remove cache and rebuild:
Code:
rm -rf /Volumes/~LeopardPartitionName/System/Library/Extensions.mkext
kextcache -k /Volumes/~LeopardPartitionName/System/Library/Extensions
Reboot.