[U-Boot-Users] How to use kernel cmdline instead

[U-Boot-Users] How to use kernel cmdline instead

[Junior]

Hi all,
How do I make uboot use the commandline args in embedded in the kernel
rather than those supplied by uboot?

Thanks.
--Jr.

[U-Boot-Users] How to use kernel cmdline instead

[Patrice Vilchez]

Junior a ?crit :
> Hi all,
> How do I make uboot use the commandline args in embedded in the kernel
> rather than those supplied by uboot?
>
> Thanks.
> --Jr.
>   
    unset bootargs

Patrice.

[U-Boot-Users] How to use kernel cmdline instead

[Wolfgang Denk]

In message <DAC6A9AD08C.0000016Cejr@inbox.com> you wrote:
>
> How do I make uboot use the commandline args in embedded in the kernel
> rather than those supplied by uboot?

You cannot. U-Boot never uses any information embedded in the kernel.

For U-Boot, the kernel is just a binary blob of unknown (and
uninteresting) data.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
SW engineering is a race between programmers trying  to  make  better
idiot-proof programs and the universe producing greater idiots.

[U-Boot-Users] How to use kernel cmdline instead

[Junior]

> 
> Junior a ?crit :
>> Hi all,
>> How do I make uboot use the commandline args in embedded in the kernel
>> rather than those supplied by uboot?
>> 
>> Thanks.
>> --Jr.
>> 
>     unset bootargs
> 
> Patrice.

Thanks. I'm actually refering to building. What option do I set or unset?
My build doesn't like when I unset CMDLINE_TAG, unless I messed something up.

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[U-Boot-Users] How to use kernel cmdline instead

[Junior]

> -----Original Message-----
> From: wd at denx.de
> Sent: Fri, 06 Jul 2007 16:36:27 +0200
> To: ejr at inbox.com
> Subject: Re: [U-Boot-Users] How to use kernel cmdline instead
> 
> In message <DAC6A9AD08C.0000016Cejr@inbox.com> you wrote:
>> 
>> How do I make uboot use the commandline args in embedded in the kernel
>> rather than those supplied by uboot?
> 
> You cannot. U-Boot never uses any information embedded in the kernel.
> 
> For U-Boot, the kernel is just a binary blob of unknown (and
> uninteresting) data.

Thanks,
On second thought, this might be a kernel thing. What I really meant is for the
kernel to boot with the embedded cmdline instead of using the one supplied by the 
bootloader.

--Jr.

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[U-Boot-Users] How to use kernel cmdline instead

[Songmao Tian]

Junior wrote:
>> -----Original Message-----
>> From: wd at denx.de
>> Sent: Fri, 06 Jul 2007 16:36:27 +0200
>> To: ejr at inbox.com
>> Subject: Re: [U-Boot-Users] How to use kernel cmdline instead
>>
>> In message <DAC6A9AD08C.0000016Cejr@inbox.com> you wrote:
>>     
>>> How do I make uboot use the commandline args in embedded in the kernel
>>> rather than those supplied by uboot?
>>>       
>> You cannot. U-Boot never uses any information embedded in the kernel.
>>
>> For U-Boot, the kernel is just a binary blob of unknown (and
>> uninteresting) data.
>>     
>
> Thanks,
> On second thought, this might be a kernel thing. What I really meant is for the
> kernel to boot with the embedded cmdline instead of using the one supplied by the 
> bootloader.
>   
As I known, it can be configured by "make menuconfig".
> --Jr.
>
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> https://lists.sourceforge.net/lists/listinfo/u-boot-users
>
>
>   

[U-Boot-Users] How to use kernel cmdline instead

[Patrice Vilchez]

Junior a ?crit :
>> -----Original Message-----
>> From: wd at denx.de
>> Sent: Fri, 06 Jul 2007 16:36:27 +0200
>> To: ejr at inbox.com
>> Subject: Re: [U-Boot-Users] How to use kernel cmdline instead
>>
>> In message <DAC6A9AD08C.0000016Cejr@inbox.com> you wrote:
>>     
>>> How do I make uboot use the commandline args in embedded in the kernel
>>> rather than those supplied by uboot?
>>>       
>> You cannot. U-Boot never uses any information embedded in the kernel.
>>
>> For U-Boot, the kernel is just a binary blob of unknown (and
>> uninteresting) data.
>>     
>
> Thanks,
> On second thought, this might be a kernel thing. What I really meant is for the
> kernel to boot with the embedded cmdline instead of using the one supplied by the 
> bootloader.
>
> --Jr.
>   
    From the U-boot command line you have to unset the bootargs 
environment variable.
    To do that :
    U-Boot> setenv bootargs

P.

[U-Boot-Users] How to use kernel cmdline instead

[my lists]

Actually kernel will use buildtime option as default if nothing is passed as
boot time command line.
I guess you want to know how to use the kernel default ... then just pass
nothing to kernel. Make sure then that your kernel was well configured at build
time or you will most likely end up with a kernel panic at the time of mounting
root filesystem.

Regards
David
--- Junior <ejr@inbox.com> wrote:

> > 
> > Junior a ?crit :
> >> Hi all,
> >> How do I make uboot use the commandline args in embedded in the kernel
> >> rather than those supplied by uboot?
> >> 
> >> Thanks.
> >> --Jr.
> >> 
> >     unset bootargs
> > 
> > Patrice.
> 
> Thanks. I'm actually refering to building. What option do I set or unset?
> My build doesn't like when I unset CMDLINE_TAG, unless I messed something up.
> 
> ____________________________________________________________
> FREE 3D MARINE AQUARIUM SCREENSAVER - Watch dolphins, sharks & orcas on your
> desktop!
> Check it out at http://www.inbox.com/marineaquarium
> 
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> U-Boot-Users mailing list
> U-Boot-Users at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/u-boot-users
> 



 
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