On Thu, 9 May 2019 at 08:49, Mr P Upfold <upfo...@testvalley.hants.sch.uk> wrote:
> All, > > We have been using rdiff-backup successfully for several years to perform > an offsite backup. The source machine in this case is Windows Server 2012 > R2 (using an admittedly older distribution of cwRsync, although > rdiff-backup.exe itself is v1.2.8). The destination is rdiff-backup v1.2.8 > on FreeBSD 11.2-RELEASE-p9 using SSH as the transport. > > Since 01/05/2019, backups have not been succeeding. I even started a brand > new data set to eliminate the possibility of some corruption of the > incremental data, but the failure is as follows: > > Exception 'Ace type 9 is not supported yet' raised of class '<type > 'exceptions.NotImplementedError'>': > File "rdiff_backup\robust.pyc", line 32, in check_common_error > File "rdiff_backup\rpath.pyc", line 1149, in append > File "rdiff_backup\rpath.pyc", line 884, in __init__ > File "rdiff_backup\rpath.pyc", line 909, in setdata > File "rdiff_backup\rpath.pyc", line 1499, in setdata_local > File "rdiff_backup\win_acls.pyc", line 228, in rpath_acl_win_get > File "rdiff_backup\win_acls.pyc", line 60, in load_from_rp > > Sending back exception Ace type 9 is not supported yet of type > <type 'exceptions.NotImplementedError'>: > File "rdiff_backup\connection.pyc", line 335, in answer_request > File "rdiff_backup\connection.pyc", line 485, in readfromid > File "rdiff_backup\iterfile.pyc", line 302, in read > File "rdiff_backup\iterfile.pyc", line 325, in addtobuffer > File "rdiff_backup\rorpiter.pyc", line 342, in next > File "rdiff_backup\selection.pyc", line 132, in Iterate_fast > File "rdiff_backup\selection.pyc", line 120, in diryield > File "rdiff_backup\robust.pyc", line 32, in check_common_error > File "rdiff_backup\rpath.pyc", line 1149, in append > File "rdiff_backup\rpath.pyc", line 884, in __init__ > File "rdiff_backup\rpath.pyc", line 909, in setdata > File "rdiff_backup\rpath.pyc", line 1499, in setdata_local > File "rdiff_backup\win_acls.pyc", line 228, in rpath_acl_win_get > File "rdiff_backup\win_acls.pyc", line 60, in load_from_rp > > On a couple of occasions, the file logged immediately before this error is > in the AppData/Roaming folder of a Windows user's profile. It has been > different files, but in both cases, Windows shortcut files. > > Processing changed file > [redacted]/AppData/Roaming/Microsoft/Windows/Recent/[redacted].jpg.lnk > > My reading of "Ace type 9" suggests it might be as follows (from my > research, all I could immediately find online was a possible match in the > unrelated ntfs-3g source code) > > ACCESS_ALLOWED_CALLBACK_ACE_TYPE = 9, > > The Microsoft documentation I can find for this reads: > > When the AuthzAccessCheck function is called, each > ACCESS_ALLOWED_CALLBACK_ACE structure contained in the DACL of a > SECURITY_DESCRIPTOR structure passed through a pointer to the > AuthzAccessCheck function invokes a call to the application-defined > AuthzAccessCheckCallback function, in which a pointer to the > ACCESS_ALLOWED_CALLBACK_ACE structure found is passed in the pAce parameter. > > Running icacls on the file doesn't suggest any special access control > entry is on this file -- it inherits from its parent folders which back up > successfully and doesn't have any of its own ACEs as far as I can see. > > I'm at a loss as for why this issue is newly affecting us on a source data > set that has worked well for years. I'm going to exclude certain folders in > AppData/Roaming that I think contain shortcut files for now and try again, > but it takes some time to create a new backup set, so I won't know if this > workaround helps immediately. > > Would anyone be able to shed light on this issue? Is there a way to make a > failure to copy (this kind of) ACE non-fatal? > I advise running rdiff-backup from Windows with --no-acls, and following any restore consider using icacls to fix permissions back to the standard inherited ones e.g. icacls %APPDATA%\Thunderbird /reset /t /c /q Dominic Raferd https://www.timedicer.co.uk _______________________________________________ rdiff-backup-users mailing list at rdiff-backup-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/rdiff-backup-users Wiki URL: http://rdiff-backup.solutionsfirst.com.au/index.php/RdiffBackupWiki
