just before i pack it in for the day, i'm still grappling with why i
can't get the linuxppc-2.5 kernel to start the init/minit program on my
8xx board. very curious, since it used to be able to, even if it hung
immediately afterwards.
for more feedback, i added a printk() call to the run_init_process()
function in init/main.c to see what it thought it was doing. the tail end
of my boot sequence was:
...
Kernel command line: console=ttyS0,9600 rw root=/dev/ram0 init=/sbin/minit
... snip ...
RAMDISK: Compressed image found at block 0
VFS: Mounted root (ext2 filesystem). <-- good
Mounted devfs on /dev <-- also good
Freeing unused kernel memory: 52k init
Trying run_init_process with /sbin/minit <-- hmm, that should work
Trying run_init_process with /sbin/init
Trying run_init_process with /etc/init
Trying run_init_process with /bin/init
Trying run_init_process with /bin/sh
Kernel panic: No init found. Try passing init= option to kernel.
at this point, i'm out of ideas, and in need of a beer. thanks to
everyone who's provided advice so far.
rday
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
for more feedback, i added a printk() call to the run_init_process()
function in init/main.c to see what it thought it was doing.
Maybe you should add a printout of errno, which the execve() inside of
run_init_process() will set - might give an important clue.
Mark Chambers
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
On Thu, 10 Jun 2004, Mark Chambers wrote:
quoted
for more feedback, i added a printk() call to the run_init_process()
function in init/main.c to see what it thought it was doing.
Maybe you should add a printout of errno, which the execve() inside of
run_init_process() will set - might give an important clue.
did that, here are the results:
Freeing unused kernel memory: 52k init
Trying run_init_process with /sbin/minit
Error code from execve: -1
Errno: 2
Trying run_init_process with /sbin/init
Error code from execve: -1
Errno: 14
Trying run_init_process with /etc/init
Error code from execve: -1
Errno: 14
Trying run_init_process with /bin/init
Error code from execve: -1
Errno: 14
Trying run_init_process with /bin/sh
Error code from execve: -1
Errno: 14
Kernel panic: No init found. Try passing init= option to kernel.
if i read the include files correctly (include/asm-generic/errno*.h), i
read this as:
#define ENOENT 2 /* No such file or directory */
#define EFAULT 14 /* Bad address */
note that the error for minit is different from all the busybox errors.
the man page for execve() tells me this:
ENOENT The file filename or a script or ELF interpreter does not exist,
or a shared library needed for file or interpreter cannot be found.
EFAULT filename points outside your accessible address space.
so, i guess the next step is to compile minit statically and see what
happens.
rday
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/