Re: [yocto] Splashscreen using psplash

2018-02-20 Thread Tian Wen See 
Hello,

How do i modify the original psplash in Yocto, and how do i recompile it and 
reintegrate the newly compiled one into Yocto ?
Any help will be greatly appreciated.

Best Regards,
Mike See

Sent from Mail for Windows 10

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Re: [yocto] Splashscreen using psplash

2013-04-23 Thread Gary Thomas 

On 2013-04-23 06:03, Andreas Enbacka wrote:

Hello,

I am creating a custom image based on core-image-sato, with a custom splash 
screen (using psplash). I have been able to replace the default yocto 
splashscreen in my image,
  however, my question is whether it is possible to hide the initial console 
output text displayed on the screen prior to showing the splashscreen?  
Currently most of the boot
process is completed at the stage when the splash screen is being displayed on 
screen. This is because the image should be used as part of an embedded device, 
and the end-user
should not see any traces of the underlying linux distro.

Any info would be greatly appreciated.


You could disable the [framebuffer] console directly in the
kernel (CONFIG_FRAMEBUFFER_CONSOLE).  With this disabled, Linux
will leave whatever was in the framebuffer (possibly a splash
put there by your bootstrap).

I've done this where U-Boot put up a splash image that was the
same as the psplash one so there was no change on the screen
during the boot process until it was completely running.

--

Gary Thomas |  Consulting for the
MLB Associates  |Embedded world

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Re: [yocto] Splashscreen using psplash

2013-04-23 Thread Burton, Ross 
On 23 April 2013 13:03, Andreas Enbacka aenba...@gmail.com wrote:
 I am creating a custom image based on core-image-sato, with a custom splash
 screen (using psplash). I have been able to replace the default yocto
 splashscreen in my image,  however, my question is whether it is possible to
 hide the initial console output text displayed on the screen prior to
 showing the splashscreen?  Currently most of the boot process is completed
 at the stage when the splash screen is being displayed on screen. This is
 because the image should be used as part of an embedded device, and the
 end-user should not see any traces of the underlying linux distro.

Passing quiet to the kernel (APPEND+=quiet in local.conf will do
it for testing) should stop the majority of the text.  A full
splash-from-bootloader is possible if you have a bootloader that
displays the image, and then a silent kernel from there.

Ross
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Re: [yocto] Splashscreen using psplash

2013-04-23 Thread Andreas Enbacka 
Hello,

Thanks a lot for info, I will try with that.

//Andreas

-Original Message-
From: Burton, Ross [mailto:ross.bur...@intel.com] 
Sent: 23. huhtikuuta 2013 15:09
To: Andreas Enbacka
Cc: yocto@yoctoproject.org
Subject: Re: [yocto] Splashscreen using psplash

On 23 April 2013 13:03, Andreas Enbacka aenba...@gmail.com wrote:
 I am creating a custom image based on core-image-sato, with a custom splash
 screen (using psplash). I have been able to replace the default yocto
 splashscreen in my image,  however, my question is whether it is possible to
 hide the initial console output text displayed on the screen prior to
 showing the splashscreen?  Currently most of the boot process is completed
 at the stage when the splash screen is being displayed on screen. This is
 because the image should be used as part of an embedded device, and the
 end-user should not see any traces of the underlying linux distro.

Passing quiet to the kernel (APPEND+=quiet in local.conf will do
it for testing) should stop the majority of the text.  A full
splash-from-bootloader is possible if you have a bootloader that
displays the image, and then a silent kernel from there.

Ross

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Re: [yocto] Splashscreen using psplash

2013-04-23 Thread Gary Thomas 

On 2013-04-23 06:29, Andreas Enbacka wrote:

Hello,

Thanks a lot for info, I will try with that.

//Andreas

-Original Message-
From: Burton, Ross [mailto:ross.bur...@intel.com]
Sent: 23. huhtikuuta 2013 15:09
To: Andreas Enbacka
Cc: yocto@yoctoproject.org
Subject: Re: [yocto] Splashscreen using psplash

On 23 April 2013 13:03, Andreas Enbacka aenba...@gmail.com wrote:

I am creating a custom image based on core-image-sato, with a custom splash
screen (using psplash). I have been able to replace the default yocto
splashscreen in my image,  however, my question is whether it is possible to
hide the initial console output text displayed on the screen prior to
showing the splashscreen?  Currently most of the boot process is completed
at the stage when the splash screen is being displayed on screen. This is
because the image should be used as part of an embedded device, and the
end-user should not see any traces of the underlying linux distro.


Passing quiet to the kernel (APPEND+=quiet in local.conf will do
it for testing) should stop the majority of the text.  A full
splash-from-bootloader is possible if you have a bootloader that
displays the image, and then a silent kernel from there.


Note: AFAICT this will only work if booting using grub or syslinux, not U-Boot
or some other embedded bootstrap.

--

Gary Thomas |  Consulting for the
MLB Associates  |Embedded world

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Re: [yocto] Splashscreen using psplash

2013-04-23 Thread Richard Purdie 
On Tue, 2013-04-23 at 06:34 -0600, Gary Thomas wrote:
 On 2013-04-23 06:29, Andreas Enbacka wrote:
  Hello,
 
  Thanks a lot for info, I will try with that.
 
  //Andreas
 
  -Original Message-
  From: Burton, Ross [mailto:ross.bur...@intel.com]
  Sent: 23. huhtikuuta 2013 15:09
  To: Andreas Enbacka
  Cc: yocto@yoctoproject.org
  Subject: Re: [yocto] Splashscreen using psplash
 
  On 23 April 2013 13:03, Andreas Enbacka aenba...@gmail.com wrote:
  I am creating a custom image based on core-image-sato, with a custom splash
  screen (using psplash). I have been able to replace the default yocto
  splashscreen in my image,  however, my question is whether it is possible 
  to
  hide the initial console output text displayed on the screen prior to
  showing the splashscreen?  Currently most of the boot process is completed
  at the stage when the splash screen is being displayed on screen. This is
  because the image should be used as part of an embedded device, and the
  end-user should not see any traces of the underlying linux distro.
 
  Passing quiet to the kernel (APPEND+=quiet in local.conf will do
  it for testing) should stop the majority of the text.  A full
  splash-from-bootloader is possible if you have a bootloader that
  displays the image, and then a silent kernel from there.
 
 Note: AFAICT this will only work if booting using grub or syslinux, not U-Boot
 or some other embedded bootstrap.

The trick is to redirect the console output somewhere else. By default
it goes to the first tty if I recall correctly but you can send it to a
serial port or wherever you want...

Cheers,

Richard




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