From: Tiger Liu <TigerLiu@zhaoxin.com>
To: "Jarlstrom, Laurie" <laurie.jarlstrom@intel.com>,
"Jim.Dailey@dell.com" <Jim.Dailey@dell.com>
Cc: "edk2-devel@lists.01.org" <edk2-devel@lists.01.org>
Subject: Re: how to create environmental variable for Shell
Date: Mon, 6 Nov 2017 01:39:43 +0000 [thread overview]
Message-ID: <1E4DA6F54C53C24B98E8E8D172B945AF02BA551A@ZXBJMBX01.zhaoxin.com> (raw)
Hi, Laurie:
Got it!
Thanks a lot!
I just wanted to revise the delay for the shell before executing startup.nsh.
Best wishes,
-----邮件原件-----
发件人: Jarlstrom, Laurie [mailto:laurie.jarlstrom@intel.com]
发送时间: 2017年11月4日 4:54
收件人: Jarlstrom, Laurie <laurie.jarlstrom@intel.com>; Jim.Dailey@dell.com; Tiger Liu <TigerLiu@zhaoxin.com>
抄送: edk2-devel@lists.01.org
主题: RE: [edk2] how to create environmental variable for Shell
Delay for the shell to start "Startup.nsh" can also be done with the option "-delay :n" where n is the number of seconds of delay, default is 5.
thanks,
Laurie
laurie.jarlstrom@intel.com
Intel SSG/STO/EBP
(503) 712-9395
-----Original Message-----
From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Jarlstrom, Laurie
Sent: Friday, November 03, 2017 1:32 PM
To: Jim.Dailey@dell.com; TigerLiu@zhaoxin.com
Cc: edk2-devel@lists.01.org
Subject: Re: [edk2] how to create environmental variable for Shell
Hi,
Are you trying to set the Timeout variable (delay to allow user to press a key to go into setup) or the delay for the shell before executing startup.nsh?
The Timeout variable is a PCD and can be set with:
TmpVal = 2;
PcdStatus = PcdSet16(PcdPlatformBootTimeOut, (UINT16)TmpVal);
This will set the global variable "Timeout" - check with shell dmpstore.
The delay for the Shell can be done when invoking the Shell.efi image with "-nostartup" option.
thanks,
Laurie
laurie.jarlstrom@intel.com
Intel SSG/STO/EBP
(503) 712-9395
-----Original Message-----
From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Jim.Dailey@dell.com
Sent: Friday, November 03, 2017 4:54 AM
To: TigerLiu@zhaoxin.com
Cc: edk2-devel@lists.01.org
Subject: Re: [edk2] how to create environmental variable for Shell
Please excuse the stupid email plug-in I have to use that puts the "Internal Use" line in my text emails. The plug-in does not allow me to see that text, so I have to remember to remove it every time even though I never see it. Sadly, I sometimes forget.
-----Original Message-----
From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Dailey, Jim
Sent: Friday, November 3, 2017 6:49 AM
To: TigerLiu@zhaoxin.com
Cc: edk2-devel@lists.01.org
Subject: Re: [edk2] how to create environmental variable for Shell
Dell - Internal Use - Confidential <=== No, this is *NOT* true!
You need to use the shell's GUID, gShellVariableGuid, if you want to create a shell variable.
Regards,
Jim
-----Original Message-----
From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Tiger Liu
Sent: Friday, November 3, 2017 12:01 AM
To: edk2-devel@lists.01.org
Subject: [edk2] how to create environmental variable for Shell
Hi, experts:
I have a question about creating shell’s environmental variable.
Such as : StartupDelay
I tried to create this variable at uefi boot phase.
……
TmpVal = 2;
Status = gRT->SetVariable (
L"StartupDelay",
&gEfiGlobalVariableGuid,
EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS |EFI_VARIABLE_NON_VOLATILE,
sizeof (TmpVal),
&TmpVal
);
……
When boot to shell, it still delays 5 seconds.
I tried to use shell cmd ‘set’, then it’s ok, shell’s default delay switched to 2 seconds.
I used dmpstore cmd to list current system’s variables, and found 2 StartupDelay variables:
Efi:StartupDelay
SEnv:StartupDelay
So, my question is:
How to create “SEnv:StartupDelay” variable in UEFI BIOS code.
Thanks
Best wishes,
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next reply other threads:[~2017-11-06 1:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-06 1:39 Tiger Liu [this message]
-- strict thread matches above, loose matches on Subject: below --
2017-11-03 5:00 how to create environmental variable for Shell Tiger Liu
2017-11-03 11:48 ` Jim.Dailey
2017-11-03 11:54 ` Jim.Dailey
2017-11-03 20:31 ` Jarlstrom, Laurie
2017-11-03 20:54 ` Jarlstrom, Laurie
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