Re: [rdiff-backup-users] rdiff-backup support for Long File Paths and/or Cygwin

[Dominic Raferd]

On 17/02/14 23:53, Joe Clark wrote:
> I have been trying to get rdiff-backup to work under these constraints:
>
> * source files are on a local disk on Windows 7
> * the backup is to be stored on a network share (mounted as a Windows 
> drive letter)
>
> I first tried this with the Windows-built executable (1.2.8 and 
> 1.3.3), but both have issues with long file paths (and I don't believe 
> that "just don't use long file paths" is a reasonable workaround).
>
> I then tried using the version included with Cygwin (1.2.8-5), but it 
> gets this error, again when backing up to a remote shared drive folder:
>
>    OverflowError: group id is greater than maximum
>
> I tried to hack the Python code and just remove the offending line 
> (rpath.py:977) (it seemed reasonable to try it), and then I got an 
> error about an inode key not being found -- maybe related to 
> hardlinking not being allowed on network shares?
>
> Are there workarounds for these issues?
> - Joe

The most reliable workaround IMO is to stop backing up to a network 
share and instead backup to a Linux-based destination via ssh. The Linux 
machine can use old hardware or be a VM.

Dominic
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