[uClinux-dev] romfs help?

[Brandon Fosdick]

So far I've tried using both initrd and MTD.

The problem with initrd seems to be that my external flash is mapped to 
the part of the address space below DRAM_BASE. Consequently the load 
fails because the kernel thinks the image is outside of physical memory. 
I've figured out how to modify the code to force load it, but I'm hoping 
for a better solution.

MTD doesn't have a problem with the image's address, but it doesn't seem 
to be creating the necessary device nodes for the detected partitions. 
However, if I disable CONFIG_MTD_CMDLINE_PARTS in favor of 
CONFIG_MTD_UCLINUX, I can get it to boot a litte further (now its 
complaining about opening the console). But then I don't have a 
partition for the JFFS2 FS that's at the end of the flash.


pratik pujar wrote:
> And your kernel comand line should look like this
> "root=/dev/ram0 initrd=0x81030000,500K console=ttyS
 >
 > where initrd=<address where romFS is residing>,<size of romFS image>

I've tried a very similar command line. How close does the size on the 
command line have to be to the real size of the romfs image?

> If you want to use  mtd devices for romFS then  the link will help  you,
>  http://www.ucdot.org/article.pl?sid=03/01/11/1049210&mode=thread 
> <http://www.ucdot.org/article.pl?sid=03/01/11/1049210&mode=thread>

I had found that already. It was helpful but not quit enough. Thanks.

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