I have a HFS+ external disk that I wish to use with Ubuntu.

This is what I have done till now:

Following the advice on
I went for
sudo apt-get install hfsplus hfsutils hfsprogs
After which, I edited my fstab entry to include:

8664920a-12b8-375e-98df-20100d87646e /media/katya hfs+ user ,rw,force 0 2
Then, through Nautilus, I tried changing permissions for the external drive. I was unable to do that.

I get the following error message:

Sorry, could not change the permissions of "WD SmartWare": Error setting permissions: Read-only file system

The owner could not be changed. Sorry, could not change the owner of "katya": Error setting owner: Read-only file system
'katya' is my external HFS+ drive's name.

I understand that disabling 'journaling' in HFS+ is not a good idea as it is a useful function.

I need to access the drive urgently.
What's the solution?