I have a HFS+ journaled
external hard-drive and need to be able to write to it on Ubuntu. I don't have access to my Mac, it's thousands of miles away and I won't have access to it for three months.
Can anything be done without losing the data on the HDD?
Best Answer
See How to mount a HFS partition in Ubuntu as Read/Write? - Super User
To quote from the second/third answer down:
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There is a goldmine of other information there regarding the mounting of HFS+ filesystems.