GNU logs - #34340, boring messages

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Subject: bug#34340: cp -a doesn't copy acls 
Resent-From: L A Walsh <coreutils@HIDDEN>
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Date: Tue, 05 Feb 2019 15:50:35 -0800
From: L A Walsh <coreutils@HIDDEN>
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and it is not on the manpage, but tar copies
acls and has them on the manpage.

It guess it is an oversite that cp copies over 'xattrs'
but not acls?

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To: L A Walsh <coreutils@HIDDEN>
Subject: bug#34340: Acknowledgement (cp -a doesn't copy acls )
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Subject: bug#34340: cp -a doesn't copy acls
Resent-From: Assaf Gordon <assafgordon@HIDDEN>
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tags 34340 moreinfo
stop

Hello,

On 2019-02-05 4:50 p.m., L A Walsh wrote:
> and it is not on the manpage, but tar copies
> acls and has them on the manpage.
> 
> It guess it is an oversite that cp copies over 'xattrs'
> but not acls?

First,
Can you verify the 'cp' binary you are using was compiled with
ACL support? Something like:

   $ ldd $(which cp) | grep acl
   libacl.so.1 => /lib/x86_64-linux-gnu/libacl.so.1 (0x00007f0b68066000)


Second,
Are you using a local file-system or a remote one?
There is a previous bug about ACLs on NFS4: https://bugs.gnu.org/20884 .

Third,
Do you have a reproducible case?
e.g. on my local system:

    $ touch a
    $ setfacl -m "u:nobody:w" a
    $ cp -a a b

    $ getfacl b
    # file: b
    # owner: gordon
    # group: gordon
    user::rw-
    user:nobody:-w-
    group::r--
    mask::rw-
    other::r--

If you have a reproducible case, please also run it with "strace" to
help us troubleshoot the issue more clearly, e.g.

    strace -o cp-acl.log cp -a a b

And attach the 'cp-acl.log' file.

regards,
  - assaf

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Subject: Re: bug#34340: cp -a doesn't copy acls
To: L A Walsh <coreutils@HIDDEN>, 34340 <at> debbugs.gnu.org
References: <5C5A214B.1030107@HIDDEN>
From: Assaf Gordon <assafgordon@HIDDEN>
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Date: Fri, 8 Feb 2019 14:30:06 -0700
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tags 34340 moreinfo
stop

Hello,

On 2019-02-05 4:50 p.m., L A Walsh wrote:
> and it is not on the manpage, but tar copies
> acls and has them on the manpage.
> 
> It guess it is an oversite that cp copies over 'xattrs'
> but not acls?

First,
Can you verify the 'cp' binary you are using was compiled with
ACL support? Something like:

   $ ldd $(which cp) | grep acl
   libacl.so.1 => /lib/x86_64-linux-gnu/libacl.so.1 (0x00007f0b68066000)


Second,
Are you using a local file-system or a remote one?
There is a previous bug about ACLs on NFS4: https://bugs.gnu.org/20884 .

Third,
Do you have a reproducible case?
e.g. on my local system:

    $ touch a
    $ setfacl -m "u:nobody:w" a
    $ cp -a a b

    $ getfacl b
    # file: b
    # owner: gordon
    # group: gordon
    user::rw-
    user:nobody:-w-
    group::r--
    mask::rw-
    other::r--

If you have a reproducible case, please also run it with "strace" to
help us troubleshoot the issue more clearly, e.g.

    strace -o cp-acl.log cp -a a b

And attach the 'cp-acl.log' file.

regards,
  - assaf

Last modified: Mon, 25 Nov 2019 12:00:02 UTC

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