Re: What caused my rdiff-backup failure and how can I resolve it.

Thank you Reio.  It was a path length issue.  I used the Local Group 
Policy Editor to remove the 260 Character Path Limit (as described in 
https://www.howtogeek.com/266621/how-to-make-windows-10-accept-file-paths-over-260-characters/) 
and the backup completed successfully expect for 4 warnings about 
Permission Denied for files in the System Volume Information folder 
which I don't think I need/want to backup anyway.

On 2023-01-30 00:27, Reio Remma reio-at-mrstuudio.ee 
|rdiff-backup-users| wrote:
> Hello!
>
> I would personally suspect a path length issue.
>
> Good luck
> Reio
>
> On 30.01.2023 09:33, [email protected] wrote:
>> CrystalDiskInfo is reporting that a couple of the S.M.A.R.T 
>> attributes for one of my hard drives have changed cause the health 
>> status of the drive to switch to "Caution".  Fortunately the Windows 
>> 10 drive test doesn't report any errors and I haven't had any 
>> operational problems yet.  I'm already doing rdiff-backups of all the 
>> "critical" content on the drive, but but there is bunch of other less 
>> important content so I tried to do an rdiff-backup (downloaded as 
>> rdiff-backup-2.2.2.win64exe.zip) of the entire drive to another 
>> larger drive that still has plenty of free space so I can try to get 
>> the drive to reallocate the bad sectors or restore the contents to a 
>> replacement drive.  Unfortunately, rdiff-backup reported an error 
>> followed by a warning 3 times, then a backtrace.  At that point it 
>> appears rdiff-backup stopped and didn't complete backing up all the 
>> files..
>> The errors all look similar to (the paths are quite long, so I've 
>> elided them)
>>
>> ERROR: Exception '[WinError 3] The system cannot find the path 
>> specified: b'E:/Backup of Data Volume/.../rdiff-backup.tmp.4795' -> 
>> b'E:/Backup of Data 
>> Volume/.../perl-Test-Reporter-Transport-Metabase-1.999010-3.tar.xz'' 
>> while renaming from path E:/Backup of Data 
>> Volume/.../rdiff-backup.tmp.4795 to path
>> E:/Backup of Data 
>> Volume/.../perl-Test-Reporter-Transport-Metabase-1.999010-3.tar.xz
>>
>> and the warnings look like the errors with the "while renaming ..." 
>> removed from the end.
>>
>> The backtrace was:
>>
>> Traceback (most recent call last):
>>    File "rdiffbackup\run.py", line 170, in <module>
>>    File "rdiffbackup\run.py", line 37, in main
>>    File "rdiffbackup\run.py", line 105, in main_run
>>    File "rdiffbackup\actions\backup.py", line 159, in run
>>    File "rdiff_backup\backup.py", line 39, in mirror_compat200
>>    File "rdiff_backup\backup.py", line 197, in patch
>>    File "rdiff_backup\rorpiter.py", line 146, in __call__
>>    File "rdiff_backup\backup.py", line 595, in fast_process_file
>>    File "rdiff_backup\longname.py", line 152, in get_mirror_inc_rps
>>    File "rdiff_backup\longname.py", line 135, in find_inc_pair
>>    File "rdiff_backup\longname.py", line 313, in _check_new_index
>>    File "rdiff_backup\longname.py", line 290, in wrap_call
>>    File "rdiff_backup\longname.py", line 306, in make_parent
>>    File "rdiff_backup\rpath.py", line 802, in makedirs
>>    File "os.py", line 225, in makedirs
>> FileNotFoundError: [WinError 3] The system cannot find the path 
>> specified: b'E:/Backup of Data 
>> Volume/rdiff-backup-data/increments/Saved files from XPS 
>> 8500/pcanning 
>> AppData/Local/IsolatedStorage/lcurzgy2.mpt/d43wfibz.sxp/StrongName.p1ksvpr1tqyz1i0rntyvyoufratxuqjq/AssemFiles/oauth-tax.platform.intuit.com-prdatnreszapc4a29dbipmzhcuwStLHhvlDxrbPq-0'
>> [39876] Failed to execute script 'run' due to unhandled exception!
>>
>> Any ideas for what might be causing these problems and how to resolve 
>> them?
>>
>