Re: Problem with init call

[Zachár Balázs <bzachar@xxxxxxxxxxxxxx>]

Wan ZongShun wrote:
> 2009/3/18 Zachár Balázs <bzachar@xxxxxxxxxxxxxx>:
>>
>> Wan ZongShun wrote:
>>> 2009/3/17 Zachár Balázs <bzachar@xxxxxxxxxxxxxx>
>>>> Wan ZongShun wrote:
>>>>> Can you find this console file in rootfs/dev/? Sure the UART driver
>>>>> works well?
>>>> My kernel param is:
>>>> console=ttyS1,115200
> 
> Make sure the console should be ttyS1 or ttyS0,2....and why I don't
> see the initrd= and root=?
> Could you show your boot kernel print message?

On Busybox mail list I got some good Idea:
1. I change the test init to this (to trigger out the std problem):

#include <stdio.h>

int main()
{
  write(1, "Hello world!\n", 12);
  while(1);
  return 0;
}
But It still not work if I compiled it with the new cross-toolchain...

2. I compile this code with my old (orig) toolchain to static linked, copy it to /sbin/init and boot with the new system (new kernel, new rootfs with only /dev/console, /dev/ttyS1)
And it works! :(

It looks like my new cross-toolchain can compile a working kernel but can't a Hello World!? Very strange!!! :(
Is this normal?


> 
>>>> devel:~# ll /boardnfs/root/dev/ttyS1
>>>> crw-rw---- 1 root dialout 4, 65 2009-02-20 11:10 /boardnfs/root/dev/ttyS1
>>>>
>>>> I think the UART driver is working properly, because if I use the "old" (orig) rootfilesystem to boot up with the new kernel, it works...
>>>>
>>>> In my new rootfilesystem there is only /sbin/init (Hello world) and /dev/ttyS1 and the directory structure, should I use anything else to boot up the hello world init??
>>> re: You must be put console file in your new /boardnfs/root/dev/, you
>>> can make it by "mknod console c 5 1".
>> I make the console file (copy it from the old rootfs with cp -a) but still get the error message (but the warning : Warning: unable to open an initial console. perhaps disappeared)
>>
>>>      Using busybox? If so,you can add /etc/init.d/rcS and boot your
>>> first app program by rcS.
>> Yes, I want to use Busybox but it didn't work too(same error like with "Hello World!" init), thats why I try the Hello World:
>> http://www.busybox.net/FAQ.html#init
> 
> It is easy to build busybox for linux,Why it don't work.Please check
> your configure or static lib or shared ...
> 
> if necessary.I can send my busybox-1.9.1 source code to you, it works
> well at linux-2.6.29 for my ARM9(w90p910 EVB) .
> 

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