I'm making a small project out of going through the linux boot code and trying
to figure out how it all works. In init/init.c, line 717, there is the
following rather odd bunch of code:
*/
if (sys_access((const char __user *) "/init", 0) == 0)
execute_command = "/init";
else
prepare_namespace();
It looks like if the file "/init" exists, it overrides any init= command line,
and skips trying to do the initial mounts. I imagine there must be a good
reason for this, but I can't quite figure out what it is. My first thought
is that it's for embedded systems. Anyone able to shed some light on that?
It also looks to be either a security help or a great way to shoot yourself in
the foot...
--Russell
--
Russell Miller - rmiller@xxxxxxxxxxxx - Le Mars, IA
Duskglow Consulting - Helping companies just like you to succeed for ~ 10 yrs.
http://www.duskglow.com - 712-546-5886
--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive: http://mail.nl.linux.org/kernelnewbies/
FAQ: http://kernelnewbies.org/faq/
