Disable journaling on external drive?

Hello!

I have a MacBook Pro running Mac OS X 10.8.2 Mountain Lion and an external WesternDigital 320GB drive formatted with HFS+ Journaled for Time Machine backups.

I wanted to use the external HD with Linux, but Journaling isn't supported. When i tried to disable it in Disk Utility (option-click File --> disable journaling) , it failed. I tried "Repair Drive" and when it finished, the option to disable journaling has been grayed out. 😮

Finally, i used the terminal. I typed:

sudo diskutil disablejournal /Volumes/WD320

but it throws the following error:

"An error occurred journaling the file system: The underlying task reported failure on exit (-69860)"

I also tried to use /dev/disk2s2 instead of /Volumes/WD320, but it gives the same result.

System log gives:

kernel[0] <Debug>: hfs: cannot disable journaling on volumes with directory hardlinks

Any help would be greatly appreciated 🙂

penguin01210