Re: OVMF: cross-filesystem copy broken? ("The source and destination are the same")

[Laszlo Ersek <lersek@redhat.com>]

On 11/17/16 16:24, Bruce Cran wrote:
> On 11/17/2016 2:35 AM, Laszlo Ersek wrote:
> 
>> There's a patch on the list for said BZ:
>> [edk2] [PATCH v2] API PathRemoveLastItem not handle root paths properly
>>
>> so if the BZ is indeed what you're encountering, then the patch should
>> fix it for you. Can you please test it and report back in that thread?
> 
> Unfortunately the patch doesn't fix the problem I'm seeing.
> 

Thanks for trying it.

Unfortunately, I can't find the time to dig into this now. And, I think
it's likely related to ShellPkg anyway. Can you please help by filing a
BZ for ShellPkg, and/or bisecting the issue (assuming you remember the
same command working at some point)?

... I observe that the least recent commit that affected "Cp.c" with any
potential to break it like this could be

commit fbd2dfadfe6fb16ab7b49fca3764e05e65d97b8a
Author: Qiu Shumin <shumin.qiu@intel.com>
Date:   Fri Oct 23 02:03:20 2015 +0000

    ShellPkg: Follow spec to remove the last '\' char in return name of
GetCurDir().

but that commit is more than a year old now... So I'm not sure. Could be
one of the underlying helper functions. Time to pull out GDB and single
step the code? :)

Thanks!
Laszlo