[BusyBox] how to get "reboot" to work when using "minit"??
Robert P. J. Day
rpjday at mindspring.com
Sun May 9 12:52:07 UTC 2004
On Sun, 9 May 2004, Rob Landley wrote:
> Init is always pid 1. By definition. If pid 1 exits, the kernel panics with
> "attempted to kill init". PID 1 will inherit orphan child processes. Check
> the implementation of the kernel function "daemonize()", which used to be
> called reparent_to_init().
>
> If init is ever NOT running as PID 1, this is a bug.
i'm not sure you correctly interpreted what i posted. WRT minit, when i
boot using minit (that is, the cross-compiled minit, not the BB applet),
that process *is* running as PID 1, that's not a problem.
previously, my bootable image had *both* the BB init applet and the minit
executable and, because they use completely independent support files and
directories, i could select the init-like program at boot time, and
everything worked fine. whichever one i selected would be PID 1.
the only problem (and a niggling one, i confess) is that the BB "reboot"
applet wouldn't reboot the system if i booted using minit:
# reboot
no services killed # or something like that, from memory
as i reported before, the BB reboot applet seemed to not be able to
handle the combination of:
1) BB init being selected as part of the BB build, but
2) a different program being used at boot time
which strikes me as a perfectly legal thing to do and something reboot
(and shutdown, for similar reasons) should be able to deal with.
eventually, since minit seemed to be working fine, i finally deselected
"init" from the BB build, and everything works fine now, including reboot.
still, i think it's a shortcoming in reboot that it can't deal with the
above scenario.
and, with that, i will move on to newer and more mind-bending pursuits,
like figuring out what to replace dpkg with. :-)
rday
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