Re: aborting at stage 1?

[Jorge Almeida <jalmeida@math.ist.utl.pt>]

On Sat, 28 Apr 2007, Vincent Danen wrote:

> * Jorge Almeida <jalmeida@math.ist.utl.pt> [2007-04-28 13:20:21 +0100]:
>
>> What happens if some vital init task fails? Suppose that checking the
>> root filesystem fails. The system should halt, but how to do it? If the
>> script ends with "init 0" in case the previous steps fail, then some
>> changes must be made in /etc/runit, according to the man page of
>> runit-init. But if the root file system is mounted read-only...
>
> This has pretty much nothing to do with runit.  For instance, my
> /etc/runit/1 is:
>
Thank you for your reply, but I'm kind of lost here. The system I'm
trying to setup is LFS. I don't want to use general boot scripts, I'm
trying to keep the boot scripts (i.e., stages 1 and 3 scripts) simple
and customized to my system (sacrifying generality). I noticed that the
rc script in the link you provided uses /sbin/halt. In my Gentoo system,
/sbin/halt belongs to the sysvinit package, so I suppose it will not be
available in a sysvinit-free, pure runit, system. Is this correct? If
so, the point is how to halt the system during stage 1 when something
goes wrong and the root filesystem is not writable. From what I
understood of the runit man pages, the only way to halt the computer
when something goes wrong during stage 1 is to have the script
/etc/runit/1 to issue "init 0". This will jump over stage 2 but will go
to stage 3, which will need the root filesystem to be writable.

Thanks.

Jorge Almeida