Re: grub> ls doesn't show CDROM device

[Robert]

Jordan Uggla wrote:
> > Yet "ls" on the grub prompt only shows the (fd0) boot device and an internal
> > harddisks, if existing.
> > The CDROM device is not visible.
> > The iso9660 module is loaded.
> > Which modules or ... do I need to see the CDROM from Grub2?
> >
> > and optionally: how to see USB keys, when not supported by Bios. (tried
> >   insmod's:  usb usbms uhci ohci )
> >
> >
> > PS: Yet if I boot e.g. from a super grub disk CD, I see the CDROM as (hd31)
> > - and (fd0) also.  why not when booting from any other device?
>
> By default grub only accesses drives through firmware interfaces, not
> by accessing hardware directly. Most BIOSs, for whatever reason, only
> present a CD drive to bootloaders when the machine was actually booted
> from said CD drive. You can work around this by using native grub
> drivers. For your IDE CDROM drive and grub 1.98 you would "insmod ata"
> to be able to access your CDROM drive. For anything other than ATA you
> really need to use grub 1.99 or newer.

thanks, the "insmod ata" brings the CD at (ata2).

However then immediately the (fd0) disapears and no more grub 
internal modules can be loaded. So I need to do explicitely 
"insmod linux echo iso9660" before, and "insmod ata" as last 
command before "root=ata2 ; linux ...".
Just 2x "error: no device connected" are issued, but without 
stopping the show. the ata module seems somewhat buggy too.

Does Grub2 1.99 include modules for firewire/ohci? if so: how to?

Robert