This is what I got with the Terminal:
matt-kornegays-computer:~ mattkornegay$ diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *750.2 GB disk0
1: EFI 209.7 MB disk0s1
2: Apple_HFS Macintosh HD 749.3 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: Apple_partition_scheme *500.1 GB disk1
1: Apple_partition_map 32.3 KB disk1s1
2: Apple_HFS FreeAgent GoFlex Drive 500.0 GB disk1s3
/dev/disk2
#: TYPE NAME SIZE IDENTIFIER
0: FDisk_partition_scheme *2.0 TB disk2
1: Linux 16.7 GB disk2s1
2: Linux 2.0 TB disk2s2
matt-kornegays-computer:~ mattkornegay$ mkdir /Volumes/myextdrive
matt-kornegays-computer:~ mattkornegay$ /usr/local/bin/fuse-ext2 /dev/disk2s2 /Volumes/myextdrive
fuse-ext2: version:'0.0.7', fuse_version:'27' [main (../../fuse-ext2/fuse-ext2.c:324)]
fuse-ext2: Failed to access '/dev/disk2s2' [main (../../fuse-ext2/fuse-ext2.c:334)]
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Thanks,
Matt Kornegay