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Related

recompiling the Pi Kernel

dharr19
dharr19 over 13 years ago

Hi,

 

I was hoping to find the documentation on getting and then recompiling a kernel that will work with Pi.

 

Any hints or clues are appreciated

Cheers

David

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  • fustini
    fustini over 13 years ago

    I had followed the eLinux wiki instructions: http://elinux.org/RPi_Kernel_Compilation

     

    Here's how I compiled my kernel back in April:

    http://www.element14.com/community/docs/DOC-44948/l/compiling-linux-kernel-staging-driver-modules

     

    I need to do it again soon, so I'll have to see if I pick up any new tricks this time around.

     

    update: bootc.net documents a different approach but I've not tried it yet: http://www.bootc.net/archives/2012/05/26/how-to-build-a-cross-compiler-for-your-raspberry-pi/

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  • dharr19
    dharr19 over 13 years ago in reply to fustini

    Thanks image

     

    I thought I might try compiling a kernel on my mac using the instructions on the eLinux wiki webpage you gave me.  Under the heading -

    From a foreign machine 

      Firmware

        cd /opt

        git clone git://github.com/raspberrypi/firmware.git

        cd firmware/boot

        scp arm128_start.elf arm192_start.elf arm224_start.elf bootcode.bin loader.bin start.elf <user>@<host>:/boot/

     

    I'm not sure about this part of the last line <user>@<host>:/boot/ .  I found out host is a command but not sure if I need to replace user with something else <user>.

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  • dharr19
    dharr19 over 13 years ago in reply to fustini

    Thanks image

     

    I thought I might try compiling a kernel on my mac using the instructions on the eLinux wiki webpage you gave me.  Under the heading -

    From a foreign machine 

      Firmware

        cd /opt

        git clone git://github.com/raspberrypi/firmware.git

        cd firmware/boot

        scp arm128_start.elf arm192_start.elf arm224_start.elf bootcode.bin loader.bin start.elf <user>@<host>:/boot/

     

    I'm not sure about this part of the last line <user>@<host>:/boot/ .  I found out host is a command but not sure if I need to replace user with something else <user>.

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  • fustini
    fustini over 13 years ago in reply to dharr19

    Hi, that last line is to copy those files ( arm128_start.elf arm192_start.elf arm224_start.elf bootcode.bin loader.bin start.elf ) to the Pi over the network via scp (secure copy, which is part of the ssh family of utilities).  Let's say my Pi is at 192.168.1.10 and my Pi username is 'pi'.   The command would be:

     

        scp arm128_start.elf arm192_start.elf arm224_start.elf bootcode.bin loader.bin start.elf pi@192.168.1.10:/boot/

     

    It should then prompt for password which would be 'raspberry' for user 'pi' on the default Raspbian Wheezy.

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  • dharr19
    dharr19 over 13 years ago in reply to fustini

    Thanks,

     

    I have a Airport Express connected to a cable modem when I issue the command

     

    scp arm128_start.elf arm192_start.elf arm224_start.elf bootcode.bin loader.bin start.elf davidharrison@10.0.1.2:/boot/

     

    I get

     

    ssh: connect to host 10.0.1.2 port 22: Connection refused

    lost connection


    At this point I don't know why the connection was refused.  Any hints on where I might start looking?

     

    Cheers

    David

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  • fustini
    fustini over 13 years ago in reply to dharr19

    Ah, I think the ssh server process (sshd) needs to be started on the Pi.  You should be able to do this via raspi-config.  On Raspbian Wheezy, the command should be:

     

    sudo raspi-config

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