Can't eject CD/DVD after warm reboot?

[H. Kurth Bemis]

On Thu, 2009-08-27 at 11:54 -0400, Michael ODonnell wrote:
> Most of our HP systems (all recent models like xw8600 and z800) refuse
> to eject their optical media when the drive button is pushed after a
> warm reboot following a rescue/install session booted from that drive.
> Other systems (eg.  Dells) behave as we'd like when booted from those
> same discs so this seems clearly to be something related to HP hardware
> design or BIOS code.  This behavior is seen after using DVDs created
> using the old "Timo's Rescue CD" (Debian-based w/2.4 kernel) as well
> as a fairly current SysRescueCD (Gentoo-based w/2.6 kernel) configs.
> 
> Is there some trick (maybe some kernel commandline option or some program
> executed during shutdown) that will leave the drive willing to eject the
> media ("unlock" it?)  without us having to power-cycle these machines?
> 
> The Dell drives are IDE and the HPs are SATA - might that be relevant?
> 
> Is it the case that the HPs are working "correctly" according to some
> spec and that the other systems that allow it are in fact the ones whose
> behavior is b0rken?
> 
> _______________________________________________
> gnhlug-discuss mailing list
> gnhlug-discuss at mail.gnhlug.org
> http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/

Why won't the paperclip trick (manual release) won't work?

~k