Re: [Ps2hacking-devel] Redboot even fails to load Linux-2.4 kernel

[YAEGASHI T. <t...@ke...>]

Hello Higuchi,

Thank you for playing with my software.  I greatly appreciate your
feedback.  And I'm glad that I've found another PS2 Linux kernel
hacker in Japan. :->


In the article <200...@hi...>,
Takahide Higuchi <tak...@hi...> wrote:

> I'm trying to run Linux-2.4.6 kernel on PS2. 
> I tried latest redboot (redboot.elf-010716) to load and boot it, then I
> found the problem that redboot seems to fail to load 2.4.6 image.
> 
> The redboot start loading with the command 'load -m tftp vmlinux246',
> then my ethernet hub start blinking but stops in a second.
> and there is no response from redboot.
>
> I think the problem is linux-2.4 specific because of following facts:
> 
>   o the redboot loads and boots /boot/vmlinux-2.2.1ps2 in the PS2Linux
>     kit and other images built with cross compiler.
>   o Boot loader in the PS2linux kit DVD disc loads my 2.4.6 kernel image
>     from Memory Cards. I see some dmesg on the screen.
>   o 2.4 ELF images have three entries in the program header, where 2.2
>     ELF images have two entries.

Well it's probably RedBoot's problem, but your situation seems more
subtle.  I could see your vmlinux_246_0722.elf running with
redboot.elf-010716.  It halts with the message "entering
kernel_thread(init...)".

What is your network configuration?  My TFTP server is Linux 2.4.5
with tulip NIC, and connected with PS2 via a cheap 10/100Mbps
switching hub.


> I placed my (unfinished)vmlinux of 2.4.6 at:
> 
>  http://developer.hima.gr.jp/playstation2/vmlinux_246_0722.elf
> 
> Some (incomplete) dmesg will be on the screen if it successfully
> start booting.

Great!


> BTW, is anyone also working on Linux-2.4 kernel?

I had been going to work on Linux 2.4 port, but unfortunately I have
no time for PS2 hacking now.

--
YAEGASHI Takeshi <t...@ke...> <ta...@ya...>