[SOLVED] /dev/dvd

forum1793 · 03-14-2010, 11:06 AM

I haven't upgraded current64 in a while but did so within the past couple of days. I noticed xine and mplayer no longer show DVDs. The /dev/dvd link is gone.

Also, when telling either program to run from /dev/hdc, which worked in the past, now doesn't work and I get many errors. Dropping back to 12.2 and the DVDs view fine.

The upgrade before this one changed /dev/hdc to /dev/sr0 or something like that. But now it's back to hdc.

Suggestions?

gegechris99 · 03-15-2010, 07:59 AM

Hello,

It would be useful if you could point us to your starting point (when was the last time you upgraded to -current).

Anyhow, as you mentioned the switch from /dev/hdc to /dev/sr0, you might be interested in the following thread:

Post 13.0 switch from hd* --> sd* in -current with 2.6.32+

that provides guidance to manage this update in -current:

Quote:

Mon Jan 4 21:43:02 UTC 2010
New kernels... and this deserves a mention/warning: the last bits of the
"old" IDE/ATA system have been removed now. Everything should be using
the libata based drivers now, so if you have any drives that are currently
running as /dev/hda, /dev/hdb, etc., when you reboot with these kernels all
drives will be renamed as /dev/sda, /dev/sdb, etc. If you had any /dev/sd*
already, they might get renamed. Adjustments may be required in
/etc/lilo.conf, /etc/fstab, the initrd, and elsewhere. Good luck!
....

forum1793 · 03-16-2010, 08:50 PM

I don't remember the exact dates. I upgraded probably 2-3 weeks back and all was well. Then there were a huge number of upgrades maybe around 3/8-10. That was when the dvd changed to sr0. Then the next day another huge number of upgrades and its back at hdc.

I do vaguely remember that thread about the libata. I didn't follow it as I was using grub and had already previously started using newer kernel. It didn't really impact me as I was only using sata hds and they didn't change. I never had any issue with the dvd drive. It stayed at hdc.

It would be interesting if it worked the whole time only because I didn't delete the udev rules file. I'll give that a shot.

Or maybe my custom kernel keeps it hdc and I saw sr0 when using the generic kernel which I normally don't use. I'll have to try a few things.

forum1793 · 03-16-2010, 09:54 PM

I can confirm, in generic or Huge, dvd is sr0. But in my custom kernel 2.6.34-rc1 as well as 2.6.33-rc8, dvd is hdc.

Running Huge correctly creates /dev/dvd link to the dvd drive.
But generic does not.

When running generic the first line in the normal boot is a message about a memory collision or something like that. It does not show up using Huge. I'll try to write it down next time I see it.

Looking at my syslog, I see the following two lines are the first seen up on booting. They start on March 4 and happen every reboot.

udevd[1106]: bind failed: address already in use
udevd[1106]: error binding control socket, seems udevd is already running.

But I also see these when booting Huge when most things seem to work.

Looking at kernel configs
Huge:

Code:

CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set

#
# SCSI device support

My custom

Code:

CONFIG_HAVE_IDE=y
CONFIG_IDE=y

#
# Please see Documentation/ide/ide.txt for help/info on IDE drives
#
CONFIG_IDE_XFER_MODE=y
CONFIG_IDE_ATAPI=y
# CONFIG_BLK_DEV_IDE_SATA is not set
CONFIG_IDE_GD=y
CONFIG_IDE_GD_ATA=y
# CONFIG_IDE_GD_ATAPI is not set
CONFIG_BLK_DEV_IDECD=m
CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEACPI is not set
# CONFIG_IDE_TASK_IOCTL is not set
CONFIG_IDE_PROC_FS=y

#
# IDE chipset support/bugfixes
#
# CONFIG_IDE_GENERIC is not set
# CONFIG_BLK_DEV_PLATFORM is not set
# CONFIG_BLK_DEV_CMD640 is not set
# CONFIG_BLK_DEV_IDEPNP is not set
CONFIG_BLK_DEV_IDEDMA_SFF=y

#
# PCI IDE chipsets support
#
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_PCIBUS_ORDER=y
# CONFIG_BLK_DEV_GENERIC is not set
# CONFIG_BLK_DEV_OPTI621 is not set
# CONFIG_BLK_DEV_RZ1000 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
CONFIG_BLK_DEV_ATIIXP=y
# CONFIG_BLK_DEV_... not set
...
CONFIG_BLK_DEV_IDEDMA=y

#
# SCSI device support

I can try doing custom kernel with ide settings from Huge. That should make my dvd link to sr0. Still have to play with why /dev/dvd on generic does not link correctly and see if that situation exists for custom kernel.

forum1793 · 03-16-2010, 10:42 PM

OK, doing custom kernel and removing ide since now deprecated seems to have resolved problems. I still get the udevd messages but it seems to work. Not sure why generic not working but would seem like the initrd.gz I made must not be quite right. Thanks for pointer.