Ardenfort,
Without going in to detail, I would:
1) copy the NFS file system to your CF.
2) Update /etc/fstab to reflect the new disk layout.
3) Install Grub on the CF.
4) Update /boot/grub/grub.conf or /boot/grub/menu.lst, grub will
use which ever it finds.
5) Try booting on your laptop as a test. You may need to get into
Grub command mode to adjust the kernel options.
6) Install it on you Soekris and boot it.
I would use the LABEL options for fstab and grub.conf. It is more flexible
that /dev/hda1 or /dev/sdax. If you do this you will need to change the label
on you CF using e2label.
Hope that helps? Good luck.
--
William Estrada
[EMAIL PROTECTED]
Mt-Umunhum-Wireless.net ( http://Mt-Umunhum-Wireless.net )
Ymessenger: MrUmunhum
> Message: 6
> Date: Tue, 25 Dec 2007 18:51:11 -0800
> From: "Floating Integer" <[EMAIL PROTECTED]>
> Subject: [Soekris] very basic questions on booting from compactflash
> To: [email protected]
> Message-ID:
> <[EMAIL PROTECTED]>
> Content-Type: text/plain; charset="iso-8859-1"
>
> I now have a Soekris 4521 board running Linux and some utilities on it. I
> did all of my initial application development using NFS as it was a simple
> thing to do. On my laptop, /nfs directory now contains all the files and
> directories that the board needs.
>
> I used buildroot. It created a file system in tar. I untar it into /nfs. I
> customize the files under /nfs. The board performs a PXE boot, downloads
> kernel from /tftpboot of the laptop. The pxelinux.cfg/default directory
> tells the board to look for the root file system under /nfs.
>
> The total size of all files and directories in /nfs is ("du -s /nfs") about
> 128MB. The compactflash has 1GB. The board has 64MB of RAM. When the kernel
> has loaded and other modules have loaded, about 9MB of the main memory is in
> use. So far so good.
>
> I have one issue that is still not resolved. How do create a bootable
> compact-flash with what is available on /nfs? What are the steps? I am
> missing some fundamentals of the boot process here. It seems like I should
> create a ramdisk image of a subnet of files from /nfs and place the ramdisk
> image in /nfs/boot directory. Should the ramdisk-image be created for 64MB
> of RAM that the board has?
>
> On my laptop, /nfs/boot/ - this contains the kernel "bzImage" and also
> "grub" the kernel-loader. Buildroot didn't create menu.lst by default.
> /dev/ram exists. What would be a common menu.lst file if the system boots
> from flash?
>
> Any pointers (books, website anything) will be greatly appreciated.
>
> thanks,
> ardenfort
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