[rdiff-backup-users] Re: Windows: backing up files the administrator can't read

[Aneurin Price]

On Mon, May 24, 2010 at 11:59, Aneurin Price <address@hidden> wrote:
> On Thu, May 20, 2010 at 15:02, Aneurin Price <address@hidden> wrote:
>
>> I'm hoping to use rdiff-backup to perform backups on Windows retaining
>> full ACLs, including for files which the administrator cannot access.
>
> ...
>
>> On Cygwin (as of 1.7 at least) file access is wrapped to use the
>> backup permission all the time, restoring some level of sanity[0].
>> This allows all files to be backed up using rdiff-backup in Cygwin,
>> but Windows ACLs aren't preserved, and Windows ACLs don't map directly
>> onto POSIX ACLs so it looks like this won't be possible in Cygwin. The
>> native build of rdiff-backup seems to be able to backup and restore
>> ACLs, but it can't access quite a lot of my users' files, even when
>> run as the SYSTEM user.
>>
>> Has anyone come across this issue before, and found a solution?
>
> I didn't find a direct solution to this problem, however I found a
> decent workaround: Windows versions since server 2003 SP2 come with a
> utility called icacls[0]  which can be used to back up and restore the
> ACLs of a full filesystem tree, or whatever subset you specify -
> rather like metastore[1] for Windows.
>

Aaaaand disregard that. This suffers from the same problem of not
being able to access certain files. It looks like the solution is
going to be to write (or find, though that's not going so well) a
custom tool to duplicate the behaviour of icacls but using backup
permissions.