MrUmunhum
Group: Members
Posts: 23
Joined: Feb. 2006 |
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Posted: Nov. 24 2006,22:28 |
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| Quote (^thehatsrule^ @ Nov. 24 2006,14:29) | So you added busybox as well? What did you change to try to execute it?
How did you try to replace the shell?
I meant like the other forum user's post, where PXE loaded the kernel and the minirt which held the knoppix image (you just need more memory to use this though). |
I put busybox in /static along with links for :
| Quote |
(cd PXE_FS/static/ ln -s busybox ls )
(cd PXE_FS/static/ ln -s busybox mkdir )
(cd PXE_FS/static/ ln -s busybox sleep )
(cd PXE_FS/static/ ln -s busybox env )
(cd PXE_FS/static/ ln -s busybox pwd )
(cd PXE_FS/static/ ln -s busybox which )
(cd PXE_FS/static/ ln -s busybox ifconfig)
(cd PXE_FS/static/ ln -s busybox ifup )
(cd PXE_FS/static/ ln -s busybox ping )
(cd PXE_FS/static/ ln -s busybox route )
(cd PXE_FS/static/ ln -s busybox ln )
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The mini24 image is the small FS that is used during the boot up process. It is not the run level FS, that is what I am trying to use a NFS mount to connect.
I have been doing some reading about linuxrc. It is call after the kernel gets control.
The code looks like this:
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static int do_linuxrc(void * shell)
{
static char *argv[] = { "linuxrc", NULL, };
extern char * envp_init[];
close(old_fd);
close(root_fd);
close(0);
close(1);
close(2);
setsid();
(void) open("/dev/console",O_RDWR,0);
(void) dup(0);
(void) dup(0);
return execve(shell, argv, envp_init);
}
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I have tried changing the '#!' line in linuxrc, Copying bash to linuxrc.
All fail with a kernel panic.
The bottom line is, it is not a DSL problem, it is a kernel problem. I get the same results using other kernels, including FC5.
So more of RTFMing!
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