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Re: LS and TAR don't see any file permissions (
Have found my solution ... robocopy. Using it's /secfix option copied
files are owned by the copying user.
eg: robocopy x:\tmp .\tmp /e /secfix
Note: you need a not-too-old version of Robocopy for the /secfix
support (I was using v 1.96).
On 16 March 2011 19:09, Peter Binney <Peter.Binney@gmail.com> wrote:
> Eric Blake <eblake <at> redhat.com> writes:
>> On 03/04/2011 11:12 AM, Peter Binney wrote:
>> > When running "ls -l" the permissions field shows as "----------+".
>> Which means that the owner has no permissions, but that there are ACLs
>> which allow others permissions. ?Not entirely unusual, given Windows'
>> ability to create files with a different owner than the current user,
>> while allowing the current user to access the file (typically when done
>> to places like the desktop, and caused by inheritance ACLs present on
>> the directory where the problematic file is being created in the first
>> > Oddly, "ls -l" shows the correct permissions if the pathname uses the
>> > windows drive letter syntax. eg:
>> > $ pwd
>> > /cygdrive/c
>> > $ ls -l tmp/plb.txt
>> > ----------+ 1 ga2binn Domain Users 5527 Mar ?3 13:54 tmp/plb.txt
>> > $ ls -l c:/tmp/plb.txt
>> > -rw-r--r-- 1 ga2binn Domain Users 5527 Mar ?3 13:54 c:/tmp/plb.txt
>> That's because using a dos-style path disregards ACL parsing, and fakes
>> the permission bits instead. ?The + shows that ACLs are present, and
>> 'getfacl tmp/plb.txt' will show you the difference between the owner and
>> your permissions.
>> > Similarly, TAR images have no permissions on the files contained. eg:
>> > $ pwd
>> > /cygdrive/c/tmp
>> > $ tar cf - plb.txt | tar vtf -
>> > ---------- ga2binn/Domain Users 5527 2011-03-03 13:54 plb.txt
>> Here, the problem is that tar doesn't preserve ACLs by default, so the
>> original POSIX mode (000) is preserved while the ACLs are lost,
>> resulting in an truly inaccessible file (note that there is no longer a
>> + in the listing).
>> > Even more oddly, this behaviour (both LS and TAR) occurs on a new PC
>> > that I am moving to.
>> That's another big case where the user ids on the old pc do not
>> correpsond to the user ids on the new pc; copying preserved the old user
>> id, but gave ACL access to the new user, resulting in odd permissions.
> Many thanks indeed for that info, Eric.
> I know it's not a Cygwin issue, but can you suggest an easy way to get
> miserable Windows to copy files to a new machine in a way that does
> give the current user ownership (ideally using some normal-ish Windows
> I tried using Windows Explorer copies and Winzip-ed .zip archives -
> both end up with the problem below.
> I have done this before when transferring PC's, but then I would have
> been the same user on both, Here I am also moving to a different
> domain\username on the new PC.
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