Merging two partitions

hi
i used bootcamp to partition by hard drive into two.
and while installing ubuntu i converted the fat32 to ext3
and then i wanted to remove ubuntu from my macbook,
i thought bootcamp will detect ext3 but it didn't,
so i went back to ubuntu and converted the ext3 to fat32 using gparted.
then came back to mac os and started bootcamp and thought it will restore the fat32 to hfs partition but it says " the disk is already partitioned for windows and cannot re-partition it again",
so i used the disk utility to convert the fat32 to hfs+ partition,
now my macbook has two hfs+ partitions, i want to merge these two partitions.
can anyone suggest me how to merge two hfs partitions.
is there any freeware which can do this job?
or any licensed software that can do this?
or can the provided disk utility do this?

Hi,
Mac has a very useful utility accessible from Terminal. I personally find it much better that the GUI Diskutility.
Start up Terminal in Utilities, and type "diskutil help" w/o the quotation marks. You will get a comprehensive list of items which you can do with your disk/volume. I have used it to create, delete, merge, resize volumes/partitions without losing data. Nevertheless you should always backup before venturing. Hope this helps.

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