Enabling Trim in Lion - terminal commands

Terminal can be a tricky beast indeed.

A good thing to remember is that the command structure you use when entering commands looks like this:

command, modifier, subject1, subject2... Each string should be separated by a space.

In the case of the cp command:

cp - the command

there is no modifier in this case since you're not asking it to do anything other than a straight copy

and the subject which is IOAHCIBlockStorage file.

So... cp *space* path-to-file *space* path-to-where-you-want-the-copied-file-to-be

The sudo command at the beginning is there to run the command as a 'super user'

The computer warned you because the sudo command when run in front of a command can really mess up your computer.

Copying and pasting the command that you have above will work just fine.

-Graham

That's right. Copy and paste all the lines starting with sudo and ending with original.

I copied and pasted it into a text editor on my compy here. It looks like the syntax will work properly.

Note that terminal, after you enter your password will not tell you that it's successfully completed the task.

It'll just do it and wait for your next command.

You can verify your work by copying and pasting this:

ls /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorag e.kext/Contents/MacOS/

Read through the output and see if you can find the file you copied. It'll be called IOAHCIBlockStorage.original

In fact, you should see both IOAHCIBlockStorage, and IOAHCIBlockStorage.original in there.

HTH

-Graham

No damage either way. The command you're trying to do is only difficult cause it's buried a mile deep in a folder within the System folder. It's just a copy from one place to another.

Make sure you type your password correctly. The sudo command will force your command to copy the file.

-Graham

Two commands Separated by the enter key.

First: sudo kextcache -system-prelinked-kernel

Second: sudo kextcache -system-caches