How can I create a disk partiton with Lion?

Question

Hello there:
I'm trying to create a partition to use it as scratch disk in my computer, but as i dont have copy of the Lion OS disk to start my computer to use the disk utility to create it, I need some feed back about this issue, can anyone help me.
The computer is a  macBook pro 15" 2011

Answer 1

I'm trying to create a partition to use it as scratch disk in my computer, but as i dont have copy of the Lion OS disk to start my computer to use the disk utility to create it.
No need to.  Open Disk Utiltiy in Applications->Utilities to create a partition.
Create new partitions on a disk
You may be able to create new partitions on a disk without losing any of the files on the disk. Each partition works like a separate disk. You may need to create a new partition if you want to install multiple operating systems on your computer. You can also create partitions to help organize your files.
As a precaution, back up your data before creating new partitions on your disk
Open Disk Utility, in the Utilities folder in Launchpad.
Select the disk where you want to create a new partition and click Partition.
Select an existing partition in the Volume Scheme list, and click Add (+).Disk Utility splits the partition into two, leaving the data from that partition in one of the new partitions. If the partition is less than half-full, Disk Utility creates two partitions of equal size. Otherwise, it creates one partition large enough for the data, and another partition with the remaining space.
Resize the partitions as needed.You can drag the dividers between the partitions in the Volume Scheme list, or you can select a partition in the Volume Scheme list, and then enter a value in the Size field.
Choose how to format the partitions that will be erased or created.For each new partition, select it, enter a name, and then choose a format.
Click Apply.