I appreciate the prompt reply. I saw that on the support community and it isn't giving me a solution.
The disk where the volume I need to upgrade is 250.06 GB Hitachi, the partition window (current) does not have a blue marker for the used data space, so there is no way to resize it.
If it's helpful, System profiler reads:
NVidia MCP89 AHCI:
Vendor: NVidia
Product: MCP89 AHCI
Link Speed: 3 Gigabit
Negotiated Link Speed: 1.5 Gigabit
Description: AHCI Version 1.30 Supported
Hitachi HTS545025B9SA02:
Capacity: 250.06 GB (250,059,350,016 bytes)
Model: Hitachi HTS545025B9SA02
Revision: PB2AC60W
Serial Number: 100814PBL200CSJA72PN
Native Command Queuing: Yes
Queue Depth: 32
Removable Media: No
Detachable Drive: No
BSD Name: disk0
Rotational Rate: 5400
Medium Type: Rotational
Partition Map Type: GPT (GUID Partition Table)
S.M.A.R.T. status: Verified
Volumes:
Capacity: 209.7 MB (209,715,200 bytes)
Writable: Yes
BSD Name: disk0s1
Capacity: 249.72 GB (249,715,376,128 bytes)
Writable: Yes
BSD Name: disk0s2
Macintosh HD:
Capacity: 249.71 GB (249,714,352,128 bytes)
Available: 100.41 GB (100,405,456,896 bytes)
Writable: Yes
File System: Journaled HFS+
BSD Name: disk0s2s1
Mount Point: /
Boot OSX:
Capacity: 134.2 MB (134,217,728 bytes)
Writable: Yes
BSD Name: disk0s3