Yes Tian, Diskpart.efi doesnot need input arguments. I tried *efifmt.efi
blk8 /FS:FAT *. But the same result. The application did not do anything.
It is expected to print help menu when running EFIFMT.efi without any
arguments. I downloaded UDK2010 and ran the Nt32 emulated environment.
There when i run EFIFMT.efi it is displaying the help menu as expected.

Message: 4
> Date: Wed, 2 Jul 2014 07:06:11 +0000
> From: "Tian, Feng" <feng.t...@intel.com>
> Subject: Re: [edk2] EFIFMT and EFICHK tools not working in MinnowBoard
>         UEFI
> To: "edk2-devel@lists.sourceforge.net"
>         <edk2-devel@lists.sourceforge.net>
> Message-ID:
>         <
> 7f1bad85adea444d97065a60d2e97ee501c11...@shsmsx101.ccr.corp.intel.com>
>
> Content-Type: text/plain; charset="utf-8"
>
> Diskpart.efi doesn?t need input arguments. So you can do like this way.
> But Efifmt.efi needs them to specify how and which BlockIo to be formatted.
> You can run ?efifmt.efi -?? for help info.
>
> From: vijaikumar k [mailto:vijaikuma...@mistralsolutions.com]
> Sent: Wednesday, July 02, 2014 14:14
> To: edk2-devel@lists.sourceforge.net
> Subject: Re: [edk2] EFIFMT and EFICHK tools not working in MinnowBoard UEFI
>
>
> Message: 3
> Date: Wed, 2 Jul 2014 05:59:07 +0000
> From: "Tian, Feng" <feng.t...@intel.com<mailto:feng.t...@intel.com>>
> Subject: Re: [edk2] EFIFMT and EFICHK tools not working in MinnowBoard
>         UEFI
> To: "edk2-devel@lists.sourceforge.net<mailto:
> edk2-devel@lists.sourceforge.net>"
>         <edk2-devel@lists.sourceforge.net<mailto:
> edk2-devel@lists.sourceforge.net>>
> Message-ID:
>         <
> 7f1bad85adea444d97065a60d2e97ee501c11...@shsmsx101.ccr.corp.intel.com
> <mailto:
> 7f1bad85adea444d97065a60d2e97ee501c11...@shsmsx101.ccr.corp.intel.com>>
>
> Content-Type: text/plain; charset="utf-8"
>
> How do you use these two apps? And after DiskPart.efi, do you run ?map -r??
>
>    No Tian, I don't run map -r after after Diskpart.efi. I just launch the
> application by specifying its name in UEFI Shell.
>    FS0:>Diskpart.efi
>
> From: vijaikumar k [mailto:vijaikuma...@mistralsolutions.com<mailto:
> vijaikuma...@mistralsolutions.com>]
> Sent: Wednesday, July 02, 2014 13:08
> To: edk2-devel@lists.sourceforge.net<mailto:
> edk2-devel@lists.sourceforge.net>
> Subject: [edk2] EFIFMT and EFICHK tools not working in MinnowBoard UEFI
>
> Hi All,
>          Recently I tried formatting the SD card in MinnowBoard using
> EFIFMT.efi application available from Intel. But it does-not print
> anything. However DISKPART.efi is running successfully. On Debug build of
> Firmware I see the following log when I run EFIFMT and EFICHK application.
>
> FSOpen: Open '\ia32\efifmt.efi' Success
> FSOpen: Open '\ia32\efifmt.efi' Success
> InstallProtocolInterface: 5B1B31A1-9562-11D2-8E3F-00A0C969723B 3DABA7A8
> Loading driver at 0x0003D9BA000 EntryPoint=0x0003D9C59C0
> InstallProtocolInterface: BC62157E-3E33-4FEC-9920-2D3B36D750DF 3DA27D10
> InstallProtocolInterface: 752F3136-4E16-4FDC-A22A-E5F46812F4CA 3EAF6D7C
>
> This is the only log I see. From the above log it is clear that the
> application entry point has not been called. There is no EDKCompatibility
> Package in Minnowboard UEFI. Would that be a cause for the application not
> working. However Diskpart.efi application was working fine. From the source
> code I see that DISKPART.efi is in .c format however EFICHK and EFIFMT
> applications are in .cxx format with a makefile. What is the difference
> between these two ways of writing the application?
>
> Regards
> Vijai Kumar K
>
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