U-BOOT !!!!!!!!!!!!

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originally posted by mfm@Apr 30 2006, 02:58 AM

hi scott,

well, i've done the following:

- i programmed the u-boot.bin in flash memory using the flash programmer at the user space of the flash (0x400000).

- u-boot works fine but when i type flinfo this is what i get

==> flinfo
bank#  1:   size: 0 kb in 0 sectors
  sector start addresses:
==>

- when i try to save my variables with saveenv:

==> saveenv
saving environment to flash...
error: start address not on sector boundary
==>

besides, i feel confused between flash and sdram adresses, i can't even decide what adresses to submit to mkimage, is the adress i've programmed u-boot at is suitable and how u-boot proceeds to boot a kernel and a fs images.

all adresses matter is troubling me.

so if you could explain me that i'm gonna be thankful.

ps. i'm using a stratix pro 1s40 board

warm regards

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You can find it in u-boot wiki,

http://www.denx.de/wiki/view/dulg/linuxnfsroot (http://www.denx.de/wiki/view/dulg/linuxnfsroot)

But nios2 uclinux won&#39;t expect kernel parameters from boot loader, so it might not work with passed parameters.

You can just add them to kernel command line in kernel config.

root=/dev/nfs rw nfsroot=10.0.0.2:/home/mfm/roofs ip=10.0.0.99:10.0.0.2:10.0.0.2:255.0.0.0:tqm::off

In kernel config, check File systems -> Network File Systems

[*] NFS file system support

[*] Provide NFSv3 client support

Another approach, boot with initramfs, mount nfs, then switch root to nfs.

You may find an example from www.ltsp.org lbe source cvs, initramfs_src/initramfs_tree/initramfs_tree/init

You may take a trial of the ltsp4.2 on PCs to get some idea of it.