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Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

Problem in booting the kernel

Hello everyone. I am a newbie in uclinux.

I follow the UClinuxDist in

http://nioswiki.jot.com/wikihome/operating...nux/uclinuxdist (http://nioswiki.jot.com/wikihome/operatingsystems/%c2%b5clinux/uclinuxdist)

compile the kernel and download it.

In the uart terminal, it's displayed

"Uncompressing Linux... Ok, booting the kernel."

and nothing more.

I don’t know how the uclinux works.

Is there something wrong with boot process? Or I must use u-boot to boot the kernel?

Or the setting of the kernel is not correct?

thanks!

The following is what i have done.

I just want to test the uclinux on the sdram, so I didnot use the u-boot as smcnutt recommends.

QuartusII 5.0, NiosII5.0

The board is UP3 (sls.com) with 2MByte flash, and 8MByte SDRam.

http://www.slscorp.com/up3support/tutorial...c6%20manual.pdf (http://www.slscorp.com/up3support/tutorials/up3-1c6%20manual.pdf)

and I test the sdram and the flash with the design example from sls.com.

http://www.slscorp.com/up3support/tutorials/ref_design.zip (http://www.slscorp.com/up3support/tutorials/ref_design.zip)

First, I download and install the nios2linux-1.4.zip from the forum, and follow the “Linux Quick Start Guide.pdf” to compile the kernel under the nios2 IDE. It’s success. But I don’t know how to download it to ram.

Then, I compile the kernel following the instruction in UClinuxDist under Ubuntu

http://nioswiki.jot.com/wikihome/operating...nux/uclinuxdist (http://nioswiki.jot.com/wikihome/operatingsystems/%c2%b5clinux/uclinuxdist)

using uClinux-dist-test-20060511.tar.bz2 and uClinux-dist.diff.gz from

http://nioswiki.jot.com/wikihome/operating...ux-dist.diff.gz (http://nioswiki.jot.com/wikihome/operatingsystems/%c2%b5clinux/uclinuxdist/uclinux-dist.diff.gz)

and download the kernel in win-xp, with nios II SDK shell. It shows the zImage is download to 0x00500000. The display "Uncompressing Linux... Ok, booting the kernel."

Final, I try the method in

http://nioswiki.jot.com/wikihome/operating.../buildrootguide (http://nioswiki.jot.com/wikihome/operatingsystems/%c2%b5clinux/buildrootguide)

and build the kernel with:

build0411.zip

uClibc-0.9.29-pre,busybox-1.1.1-pre0

binutils-2.15.tar.bz2

gcc-3.4.6.tar.bz2

linux-libc-headers-2.6.11.0.tar.bz2

buildroot-20060320

uClibc-20060320

busybox-20060320

and the uart terminate display the same.

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    19 years ago

    hi hammer

    If u want to run Linux on flash , then for store image into flash you have to store u-boot with some changes or u have to make new the sysem through SOPC builder with CFI-coponent.

    but just if u want to run linux from sdram ,then first compile kernel with required configuration as per“Linux Quick Start Guide.pdf” and then run it.

    it will boot through jtag console.

    --First, I download and install the nios2linux-1.4.zip from the forum, and follow

    --the “Linux Quick Start Guide.pdf” to compile the kernel under the nios2 IDE. It’s

    --success. But I don’t know how to download it to ram.