SATA DVD RW not recognised [Solved]

[Unobtanium]

I have just upgraded to a SATA dvd drive but Linux doent seem to be able to find it.
LSPCI gives this:

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localhost ~ # lspci
00:00.0 Host bridge: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub (rev 02)
00:01.0 PCI bridge: Intel Corporation 82945G/GZ/P/PL PCI Express Root Port (rev 02)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 01)
00:1c.4 PCI bridge: Intel Corporation 82801GR/GH/GHM (ICH7 Family) PCI Express Port 5 (rev 01)
00:1c.5 PCI bridge: Intel Corporation 82801GR/GH/GHM (ICH7 Family) PCI Express Port 6 (rev 01)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 01)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GB/GR (ICH7 Family) LPC Interface Bridge (rev 01)
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 01)
00:1f.2 SATA controller: Intel Corporation 82801GR/GH (ICH7 Family) SATA AHCI Controller (rev 01)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01)
01:01.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
01:02.0 Network controller: RaLink RT2561/RT61 rev B 802.11g
01:07.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)
05:00.0 VGA compatible controller: nVidia Corporation G70 [GeForce 7300 GT] (rev a1)


I have changed fstab to read as folows:

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/dev/sda1      /boot      ext2      defaults,noatime   1 2
/dev/sda3      /      reiserfs   notail,noatime      0 1
/dev/sda2      none      swap      sw      0 0
/dev/sda4      /home      reiserfs   defaults,noatime   0 0
/dev/sdb1      /mnt/cdrom   auto      defaults,user   0 0
#/dev/fd0      /mnt/floppy   auto      noauto      0 0
shm         /dev/shm   tmpfs      nodev,nosuid,noexec   0 0


mtab reads as follows:

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/dev/sda3 / reiserfs rw,noatime,notail 0 0
proc /proc proc rw,nosuid,nodev,noexec 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec 0 0
udev /dev tmpfs rw,nosuid 0 0
devpts /dev/pts devpts rw,nosuid,noexec 0 0
/dev/sda1 /boot ext2 rw,noatime 0 0
/dev/sda4 /home reiserfs rw,noatime 0 0
shm /dev/shm tmpfs rw,noexec,nosuid,nodev 0 0
usbfs /proc/bus/usb usbfs rw,noexec,nosuid,devmode=0664,devgid=85 0 0

I am using a SATA HDD with no problems so I assume it isn't a kernel issue?
I changed fstab from /dev/cdrom ( which worked fine on IDE) to /dev/sdb1 which doesn't seem to work at all with SATA - is this where I have gone wrong?
Any ideas please would be appreciated.

[dave_p_b]

Hi

My DVD-RW doesn't appear in the list when I type lspci but it does work ok.
I don't think you should have an entry for it in fstab as it shouldn't be mounted until a CD is placed in it and not on boot.

What happens if you type in "dmesg | grep sr0" and "dmesg | grep sg0"

If you get output from that then it has recognized your DVD writer. If not, then are you sure that your bios is set up correctly for the DVD writer. Does the DVD writer appear in the bios POST screen. (That is the list that appears when you first turn on your computer. Some new machines don't show the list however and just show a splash screen).

All the best

Dave

[Unobtanium]

Ah I have solved
It was a kernel issue, I added SCSI CDROM support and SCSI generic support and it works.
I don't know if the generic support is required or not - but I will find out later.
I had only looked under the Serial ATA (prod) and Parallel ATA (experimental) drivers section thinking thats where my answer would lie - fooled.

I now have

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localhost linux # ls /dev/sr*
/dev/sr0


Thanks for your input Dave - much appreciated