I have some questions about debian of beaglebone black

[sont...@gmail.com]

Hi 

I downloaded and build u-boot source, linux kernel source, debian file system.

        - u-boot version : v2019.01 

        - linux kernel version : v4.14

        - debian file system : 9.8

I installed those files to uSD card ( u-boot, linux kernel, debian file system ) by reffering to 

          : https://www.digikey.com/eewiki/display/linuxonarm/BeagleBone+Black

I powered on the beaglebone black after i inserted the uSD card on it 

I got some unexpected message from terminal when it was booting.

Please, look at the picture below

1. u-boot can't find 'am335x-boneblack-uboot-univ.dtb'

   could you explain what is wrong and how to fix it.

2. that line is showed for a long time. what does that mean?

   could you explain what is wrong and how to fix it.

   

3. Message from pre-built image show as below

     there is "Support/FAQ : http://elinux.org/Beagleboard:BeagleBoneBlack Debian"

     is it wrong or not?

4. ifconfig command not found.

    could you explain how to be able to use ifconfig command?

I need your help earnestly...

[Robert Nelson]

On Tue, Apr 16, 2019 at 4:44 AM <sont...@gmail.com> wrote:

Hi 

I downloaded and build u-boot source, linux kernel source, debian file system.

        - u-boot version : v2019.01 

        - linux kernel version : v4.14

        - debian file system : 9.8

I installed those files to uSD card ( u-boot, linux kernel, debian file system ) by reffering to 

          : https://www.digikey.com/eewiki/display/linuxonarm/BeagleBone+Black

I powered on the beaglebone black after i inserted the uSD card on it 

I got some unexpected message from terminal when it was booting.

Please, look at the picture below

1. u-boot can't find 'am335x-boneblack-uboot-univ.dtb'

   could you explain what is wrong and how to fix it.

Upgrade to v4.19.x-bone

 

2. that line is showed for a long time. what does that mean?

   could you explain what is wrong and how to fix it.

generic-board-startup.service runs on first boot setting up a bunch of things.

 

   

3. Message from pre-built image show as below

     there is "Support/FAQ : http://elinux.org/Beagleboard:BeagleBoneBlack Debian"

     is it wrong or not?

The pre-installed debian image has a bunch of FAQ's built up over the years..

 

 

4. ifconfig command not found.

    could you explain how to be able to use ifconfig command?

sudo ifconfig

 

I need your help earnestly...

Regards,

--

Robert Nelson
https://rcn-ee.com/

[Wendy Sarrett]

You might need to have root in order to run ifconfig....try sudo ifconfig

As for booting....if you can catch a sale (10-13 usd) the beaglebone course on udemy goes into the boot process in great detail including a lot on uboot

[sont...@gmail.com]

Thank you so much.

three questions are resolved ( number 1, 3, 4 )

booting time is so long because of number 2 situation

when I removed the Ethernet cable from BBB, that message was not shown.

but when I connected the Ethernet cable with BBB, that message was shown and booting time was so long.

I don't know which part I should modify in generic-board-startup.service

Could you let me know??

thank you

 

[sont...@gmail.com]

I am sorry

There was a mistake previous article.

when I connected the Ethernet cable with BBB, that message was not shown.

but when I removed the Ethernet cable from BBB, that message was shown and booting time was so long.