Re: [gentoo-user] Re: How to get /dev/cdrom

[Michael Sullivan]

On Wed, 2011-01-12 at 16:31 +0000, Nuno J. Silva wrote:
> Michael Sullivan <msulli1355@×××××.com> writes:
>
> > OK, for several years I have not had a /dev/cdrom.  My workstation has
> > an internal cd-rom drive, which gets mapped to /dev/hda, and an external
>
> If you're using a recent kernel, it's probably udev which refuses to
> process devices under the old ATA driver.
>
> (I don't know if it *exactly* refuses, or if it's something else, but
> the final result is what you see, no /dev/{cdrom,cdrw,...} link)
>
>
> > DVD+R drive, which is mapped to /dev/sr0.  When I look
> > at /etc/udev/rules.d/70-persistent-cd.rules I see:
> >
> > camille rules.d # cat 70-persistent-cd.rules
> > # LITE-ON_COMBO_SOHC-5236K (pci-0000:00:1f.1-ide-0:0)
> > ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1f.1-ide-0:0", SYMLINK
> > +="cdrom", ENV{GENERATED}="1"
> ...
> > # LITE-ON_COMBO_SOHC-5236K (pci-0000:00:1f.1-ide-0:0)
> > ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1f.1-ide-0:0", SYMLINK
> > +="cdrom1", ENV{GENERATED}="1"
> ...
> > # LITE-ON_COMBO_SOHC-5236K (pci-0000:00:1f.1)
> > SUBSYSTEM=="block", ENV{ID_CDROM}=="?*",
> > ENV{ID_PATH}=="pci-0000:00:1f.1", SYMLINK+="cdrom5", ENV{GENERATED}="1"
> >
> > LITE-ON_COMBO_SOHC-5236K is my internal drive, which SHOULD be mapped
> > to /dev/cdrom.  But it's not:
> >
> > camille rules.d # ls /dev/cdrom
> > ls: cannot access /dev/cdrom: No such file or directory
>
> Check also /dev/cdrom*. Maybe it got another name, as there are at least
> three rules to symlink that drive (if it matched all rules, udev would
> create the three links, but the third rule looks different).
>
> > Why is it not being mapped correctly?  Is the rule above not correct?
> > I've tried to read tutorials about writing udev rules, but the example
> > rules in the tutorials look nothing like the above rules, and I didn't
> > write those.  I think they were created when udev was installed...
>


camille ~ # ls -l /dev/cdrom*
ls: cannot access /dev/cdrom*: No such file or directory


I need /dev/hda to be /dev/cdrom because I cannot use CD player programs
unless it has that name.  Of course, I can manually create a symlink
from /dev/cdrom to /dev/hda every time I reboot, but I shouldn't have to
do that...