Optical device names

[curmudgeon]

I have yielded to the inevitibility of libata and taken ata (ide) support out of my most recent kernel.

After changing fstab and grub.conf, things seem to work fine, except for one small thing.

Instead of /dev/cdrom and /dev/dvd (which used to point to /dev/hdc), I now have /dev/cdrom1 and /dev/dvd1 (which now point to /dev/sr0).

This doesn't seem too helpful (in fact, it breaks a lot of programs expecting to find /dev/cdrom and /dev/dvd). Can somone explain the rationale for using different device names, and possibly suggest a way to have udev give them the previous names?

As a side question, it seems I can no longer longer control things like DMA through hdparm. Does libata enable these features automatically or have I just destroyed my hard drive performance?

Thank you in advance for your help.

[jburns]

To fix the cdrom and dvd names delete the file /etc/udev/rules.d/70-persistent-cd.rules. It will be regenerated when you re-boot the computer.

[curmudgeon]

That worked great. Thank you.