Re: Accessing global variables from Shell

[Udit Kumar <udit.kumar@nxp.com>]

Thanks Laszlo 
Using file_guid works for me 
Regards
Udit

> -----Original Message-----
> From: Laszlo Ersek [mailto:lersek@redhat.com]
> Sent: Monday, July 03, 2017 11:44 PM
> To: Udit Kumar <udit.kumar@nxp.com>; edk2-devel@lists.01.org
> Subject: Re: [edk2] Accessing global variables from Shell
> 
> On 07/03/17 09:18, Udit Kumar wrote:
> > Dear Edk2,
> >
> > I am trying to create one global variables, and access that from shell.
> > If I am using gEfiGlobalVariableGuid to create variable then I could access it
> perfectly ok ,  If I use other Guid (even vendor guid) then I couldn't access from
> shell.
> >
> > Original code
> > STATIC CONST CHAR16           myVar[] = L"MacUniqueId";
> > Status = gRT->SetVariable ((CHAR16 *)myVar,
> >                     &gEfiCallerIdGuid,
> >                     EFI_VARIABLE_NON_VOLATILE |
> >                      EFI_VARIABLE_BOOTSERVICE_ACCESS |
> >                      EFI_VARIABLE_RUNTIME_ACCESS, Size,
> >
> > On shell
> > FS0:\> setvar MacUniqueId -guid C9DCF469-A7C4-11D5-87DA-00062945C3B9
> > setvar: Unable to get - C9DCF469-A7C4-11D5-87DA-00062945C3B9 -
> > MacUniqueId
> 
> This GUID (in the shell command) is not one that you generated afresh with
> "uuidgen", namely it is found in
> "EdkCompatibilityPkg/Foundation/Guid/StatusCodeCallerId/StatusCodeCallerId.
> h".
> 
> My take is that "gEfiCallerIdGuid" denotes a different GUID from C9DCF469-... If
> you take the actual FILE_GUID of the module INF where your example code is
> from, and use that GUID in the shell command too, it should work.
> 
> Laszlo