I'm unable to mount any dvd on my HP 6735s laptop running Gentoo (with combined stable (+) and testing (~) ebuilds). Here's everything that I can come up with:
$uname -a
Linux aiur 2.6.32.6-aiur-r5 #6 SMP Thu Jan 28 17:02:59 CET 2010 x86_64 AMD Turion(tm)X2 Dual Core Mobile RM-70 AuthenticAMD GNU/Linux
NOTE: -aiur-r5 is my custom kernel name. I am having this problem with all the kernels since 2.6.31. I use the vanilla kernels from www.kernel.org and compile them with some custom settings using menuconfig.
$ ls -l /dev/{cd,dvd,scd,sr}*
lrwxrwxrwx 1 root root 3 Jan 28 17:37 /dev/cdrom -> sr0
lrwxrwxrwx 1 root root 3 Jan 28 17:37 /dev/cdrw -> sr0
lrwxrwxrwx 1 root root 3 Jan 28 17:37 /dev/dvd -> sr0
lrwxrwxrwx 1 root root 3 Jan 28 17:37 /dev/dvdrw -> sr0
lrwxrwxrwx 1 root root 3 Jan 28 17:37 /dev/scd0 -> sr0
brw-rw---- 1 root cdrom 11, 0 Jan 28 17:37 /dev/sr0
$ grep aatiis /etc/group
disk::6:root,adm,haldaemon,aatiis
audio::18:aatiis
cdrom::19:haldaemon,aatiis
dialout::20:root,aatiis
video::27:root,aatiis
cdrw::80:haldaemon,aatiis
usb::85:haldaemon,aatiis
aatiis:x:1000:
vboxusers:x:1006:aatiis
wireshark:x:1010:aatiis
games:x:35:aatiis
$ dmesg | grep -i dvd
ata2.00: ATAPI: HL-DT-ST DVDRAM GT20L, DC03, max UDMA/100
scsi 1:0:0:0: CD-ROM HL-DT-ST DVDRAM GT20L DC03 PQ: 0 ANSI: 5
sr0: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
$ lsmod | grep udf
NOTE: No UDF module. I compiled it into the kernel this time; however, I was having the same problem when I compiled as a module...
$ lsmod | grep dvd
pktcdvd 20840 0
I guess I need the pktcdvd module for writing DVD's?
$ sudo mount /dev/dvd /media/cdrom
mount: /dev/sr0: unknown device
$ sudo mount -t udf /dev/dvd /media/cdrom
mount: no medium found on /dev/sr0
$ sudo mount -o ro -t udf /dev/dvd /media/cdrom
mount: no medium found on /dev/sr0
$ sudo mount -t iso9660 /dev/dvd /media/cdrom
mount: no medium found on /dev/sr0
Of course, the DVDs are working on other computers. They are not CSS-encrypted. Some of them were burnt by this same dvd burner when I had Debian. Also, DVD burning is not working either. It doesn't even recognizes a blank DVD when I insert it (I like to use the new K3B alpha, but brasero and the other burner tools don't work either). Anyone having this problem? I'm reading forums for a couple of days now as I really need to burn some DVDs. What should I try to do? Any help or suggestion is welcome.
EDIT:
$ sudo rc-update -s
acpid | boot
alsasound | default
atd | boot
bootmisc | boot
checkfs | boot
checkroot | boot
clock | boot
consolefont | boot
dbus | default
fcron | boot
hald | default
hostname | boot
keymaps | boot
local | default nonetwork
localmount | boot
modules | boot
mysql | default
net.lo | boot
ntpd | default
postgresql-8.4 | default
rmnologin | boot
sshd | default
syslog-ng | boot
udev-postmount | default
urandom | boot
xdm | default
So, I have udev-postmount here.
$ dmesg | grep udev
udev: starting version 150
udev: starting version 151
I might have updated it with a recent emerge --update --newuse --deep world --ask, so I guest that's why I have two versions of it?
$ cat /etc/fstab
# /etc/fstab: static file system information.
#
# (some more comments here, I omitted them for clarity)
# <fs> <mountpoint> <type> <opts> <dump/pass>
/dev/sda1 / ext3 noatime 0 1
/dev/sda5 none swap sw 0 0
/dev/sda6 /mnt/data ext4 user,rw,exec 0 2
# glibc 2.2 and above expects tmpfs to be mounted at /dev/shm for
# POSIX shared memory (shm_open, shm_unlink).
# (tmpfs is a dynamically expandable/shrinkable ramdisk, and will
# use almost no memory if not populated with files)
shm /dev/shm tmpfs nodev,nosuid,noexec 0 0
Note that /dev/sda1 (my root partition) is also ext4, but I use the ext3 driver right now.
$ dmesg | grep sr
sr0: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray
sr 1:0:0:0: Attached scsi CD-ROM sr0
sr 1:0:0:0: Attached scsi generic sg1 type 5
Thanks for the responses. Any more info I can provide?
