How to make Firewire drive writable again?

[Luke Yelavich]

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On Mon, Aug 11, 2008 at 06:06:00AM EST, Paul DeShaw wrote:
> Now, I find that no Linux system can read and write to this drive anymore.
> For example, if I open Nautilis as root, and try to drag and drop a
> Rosegarden session onto this drive, I get an error message that says,
> 
> Error while copying to "PPA1.2":
> 
> The destination is read-only
> 
> Looking at the permissions in a terminal, it says
> 
> pad at Studio909:~$ ls -l /media
> total 12<snip>
> drwxrwxrwx  1 root root   19 2008-06-22 22:46 PPA1.2

Just a note, that is owned by root, yet is accessible to everyone. You might want to tighten that up to only the user owning and accessing it. This can be done with the following:
$ sudo chown user.user PPA1.2
$ chmod 700 PPA1.2

> I have installed the same tools for HFS+ that worked on the other systems,
> but still the drive is closed. Neither the new Hardy desktop, the old Gutsy
> desktop, nor the MacBuntu can write to it anymnore.  These last two were
> working perfectly fine before the Hardy install.   MacOSX "just works", as
> before.   I had the drive plugged in and turned on during the install, so
> maybe that did something to it.

Have you considered repairing/checking disk permissions etc in OS X? Since HFS+ is native to OS X, it should know how to deal with such a filesystem the best.

> So, how do I acess the work I have on this drive?

Make sure the filesystem is in tact, and perhaps try copying he data off the drive in OS X onto another drive. If that works, try in Linux. If not, I'd back up, whipe the drive, and start a fresh with a compatible filesystem for all OSs you use.

Luke
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