Re: [gentoo-amd64] Re: dvdrw drive not visible

[Daiajo Tibdixious]

On Mon, May 4, 2009 at 11:00 AM, Duncan <1i5t5.duncan@×××.net> wrote:
> Daiajo Tibdixious <daiajo@×××××.com> posted
> a4a9bfcb0905032003i26abb9ccj4d7c7422bc466daa@××××××××××.com, excerpted
> below, on  Mon, 04 May 2009 03:03:02 +0000:
>
>> On Wed, Apr 29, 2009 at 12:19 AM, Drake Donahue <donahue95@×××××××.net>
>> wrote:
>>> On Tue, 2009-04-28 at 22:02 +0000, Daiajo Tibdixious wrote:
>>>> When I boot off the live CD there is a /dev/hda /dev/cdrom /dev/cdrw
>>>> /dev/dvd /dev/dvdrw etc & it works just fine.
>>>>
>>>> When I boot off my kernel there are no such devices & I can't use the
>>>> drive.
>>>>
>>>> This is the same drive as in my old system, which just worked with no
>>>> tweaking before.
>>>>
>>>> Obviously I am missing some driver, yet I have grovelled thru
>>>> menuconfig to no avail.
>>>> Google turns up many similar problems, however none have been helpful.
>>>>
>>>> If I boot off the live cd, is there a way to see what options I need?
>>>>
>>>> The drive shows as "PIONEER DVD-RW DVR-109" on the live cd.
>
> Just saw this again after your reply to DD.  I think you're correct, the
> device isn't showing up (missing driver), so it's not even getting to the
> hal/dbus stage.
>
> I just googled that drive, ATAPI/IDE it looks like, right?
>
> IDE can use two different driver sets in the kernel.  There's still the
> old IDE drivers (ATA/ATAPI/MFM/RLL support), but there's also the libata
> based drivers (Serial ATA (prod) and Parallel ATA (experimental)
> drivers).  The latter are what most folks (including me) use these days.
> Let's see if I can find the stuff in my kernel config that the ATAPI DVD-
> Writers use:
>
> Under Device Drivers:
>
> As mentioned, the SATA/PATA option, which simply enables that entire
> submenu to be chosen from.
>
> Under SATA/PATA support, ATA SFF support, which again, enables a whole
> list of individual device drivers to be chosen from.
>
> Under ATA SFF, choose your specific hardware drivers.  Here, I have
> Silicon Image SATA support for my SATA ports (symbol SATA_SIL, which
> would be unrelated to anything IDE except that they still use the legacy
> SFF interface, thus they are listed under ATA SFF) and AMD/NVidia PATA
> support for my legacy PATA ports, which is what my DVD-writers are on.
>
> Of course you will most likely have different hardware, but if you're
> using the newer SATA/PATA option and SFF, as would be recommended if you
> have SATA ports at all so as to avoid having both that and the legacy IDE
> drivers, it will likely be found here, under ATA SFF.
>
> If you don't see your specific hardware, Generic ATA support should work
> using the BIOS config, altho it's possible/likely you won't get full
> speed DMA without the chipset specific drivers.  If you end up using the

Enabling the generic driver gave me a /dev/sr0 & the drive now works.

> generic option and don't get full speed, google your specific board model
> at google.com/linux (thus limiting it to the Linux subdomain and reducing
> your general and MS platform hits), and see if you get anything useful,

Thanks for that link, I didn't know about it.
I'll look into the specific chip driver later on, as I have a more
severe problem (which I'll post in another thread).