Re: Warnings on shutdown (Debian Etch and Kernel 2.6.22.9)

["Renato S. Yamane" <renatoyamane@mandic.com.br>]

Tejun Heo wrote:
> Renato S. Yamane wrote:
> > Jim Paris wrote:
> > > For Debian, I don't think there are any complete solutions yet.
> > > The related bug is   
> > > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=426224
> >
> > I think that we can fix this if someone can answer this:
> >
> > $ man halt
> > "-h flag: This is important for IDE drives, since the kernel doesn’t 
> > flush the write cache itself before power-off.."
> >
> > How can I know if kernel write cache itself? :-)
>
> Kernel has been flushing write cache for many many years now.  Man page 
> needs update.  Also, flushing cache from halt is okay.  What's hurting 
> is spinning down the drive from halt.

So, I think that halt script need know:

- How many and who is IDE drives and SCSI/SATA drives.
- Devices with manage_start_stop as "0" or without manage_start_stop 
need "halt -h".
- Devices with manage_start_stop as "1" need only "halt".

This is correct?

Regards,
Renato