Hi.Thanks for your answer.
And I also came across the same question .
I don't need GUI,just need a prompt.
And I have a try to write a init.c:
#include <unistd.h>
#include <linux/reboot.h>
int main(void)
{
reboot(RB_AUTOBOOT);//reboot the system.
return 0;
}
I use EABI crosschain compile it .and make a cpio-initrd image
file ,then launch the goldfish emulator to try it.
But ,There is nothing happened.No reboot,No output,No kernel panic.
On 8月25日, 上午9时05分, Brad Davis <[email protected]> wrote:
> On Aug 24, 2:58 am, anddev <[email protected]> wrote:
>
> > Hi All,
> > I have downloaded kernel/common.git from android git server and
> > linux-2.6.35 branch, I am trying to port this kernel with froyo on my
> > hardware.
> > i the kernel i have only ported serial (UART) driver along with MTD
> > driver (which is onenand device in this case). I dont have any
> > framebuffer or console driver ready yet.
> > I have build the froyo and i am using yaffs2 filesystem.
> > when i booted i got
> > Kernel panic - not syncing: Attempted to kill init!
> > i wanted to debug this problem but do not know where to start.
> > my question is, what is the reason for init to fail?
> > Do i need some other driver like frame-buffer or console driver to be
> > ported first?
>
> Yes, you need the framebuffer running. Android is really a GUI system
> running on top of a Linux kernel with a BSD userspace. One of the
> first things that happens (after the kernel and init are running) is
> start the GUI (i.e. Android). If the GUI fails, init dies and the
> kernel halts (because there is no userland OS to run). The same would
> happen on your favorite Unix/Linux/BSD system if init couldn't start
> up the userspace OS.
>
> You may be able to remove things from init.rc (note that the this is
> not a Unix/Linux/BSD init) and put a shell in instead but then you
> don't really have Android running, you just have a single user Linux
> with a BSD userspace.
>
> Brad
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