[oe] How do I build OE for PPC-405 inside Virtex 4?

[Ali Akbar Zarezadeh]

Hallo,

Only for notation, I have solved my issue referring to the limitation on
ramdisk size.

Inside the Linux Kernel Configuration, the "Default RAM disk size"
should be modified:

--------------
Linux kernel Configuration utility:

|-- Device Drivers
|    |-- Block devices
|         |-- RAM block device support
|              |-- (xxx) Default RAM disk size (kbytes)
--------------

with changing (xxx) value it would be possible to use ramdisk space up
to 60M (xxx -> 61440) or ... and seems it was the boundary which
controls the settings inside the bitbake.conf.

Also, scp is used instead of ftp and is working perfect, but on each
system reboot I must delete the relevant RSA host key
in ../.ssh/known_hosts file inside my desktop PC.

ciao
Ali

PS: Embedded Linux Primer by Christopher Hallinan was an invaluable book
to get me help understanding a lot of things around system boot
procedure and I would strongly recommend it to anyone who is beginner
(newbie) like me in this area.

> 1) If I would increase the size of ramdisk more than approximately 25%
> of total installed physical memory size, I will hit with another problem
> in the boots up time which complains for exceeding the threshold size.
> It seems somewhere should be a limitation or setting for it. Is there
> any idea where?
> 
> 2) More often in our development and debug process, ftp would be desired
> to copy the new application binary through network. As I checked there
> is no ftp tool already installed in the ramdisk (only there is tftp from
> busybox-1.13.2-r18). Would you let me know how I should put ftp in the
> generated image file?