Re: [Duplicity-talk] Duplicity with FAT32 backup disk

[Eric Lynch]

Thanks for all the responses.  I would have preferred to use something
besides FAT32 for the backup disk, but it's going to be shared between
several machines, some Linux and some OS X, and FAT32 seems to be my
only choice for something that both can read/write.

-Eric

On Tue, Jan 27, 2009 at 2:19 PM, Kenneth Loafman <address@hidden> wrote:
> Eric Lynch wrote:
>> I would like to use duplicity to backup my home directory to a USB
>> disk, formatted FAT32.  If I do:
>>
>>   duplicity $HOME file:///media/usbdisk/target_dir
>>
>> will I run into problems with FAT32's 4 GB file size limit if $HOME is
>> larger than 4 GB?  I ask because of the statement on the duplicity
>> home page that says "Duplicity backs directories by producing
>> encrypted tar-format volumes...".  Does duplicity create a single tar
>> file containing the entire backup?
>
> No, duplicity creates multiple volumes of 5MB each (default), so that's
> not a problem.  However, to work with FAT32 file systems, you will need
> to use either the option '--short-filenames', or '--time-separator=_'
> since the colon in the filenames is illegal on Windows-based
> filesystems.  I would suggest the second option for readability.
>
> ...Ken