kernel 2.6.10 > cdrom not working anymore.

xushi · 01-23-2005, 01:06 PM

Lo all,

I've finally had the courage to upgrade to kernel 2.6.10, and to be honest it works perfectly, much faster and responsive, and actually fixed a few things in the laptop ( compaq hp presario x1000 ) that weren't working before...

However, i used to run both my dvd writer, and my external usb dvd writer using SCSI emulation in 2.4.28. (/dev/cdrom which is a simlink to /dev/sr0 for the dvd writer, and /dev/sr1 for the external one).

But now, not only do i get
mount: special device /dev/cdrom does not exist

but when i search in /dev, half the stuff in there is gone!?
There is no more any hdb, hdcx (x 1:4), hdd, sr0, sr1, etc... Here is what's left..

Code:

root@xushitop:/dev# d
agpgart@  hda1        nvidia0    ram2@    stdout@  tty20@  tty34@  tty48@  tty61@   vcs6@   vmnet4
console   hda2        nvidia1    ram3@    tty      tty21@  tty35@  tty49@  tty62@   vcs7@   vmnet5
core@     hda3        nvidiactl  ram4@    tty0@    tty22@  tty36@  tty5@   tty63@   vcsa@   vmnet6
cpu/      hda4        port       ram5@    tty1@    tty23@  tty37@  tty50@  tty7@    vcsa1@  vmnet7
dri/      initctl|    ppp        ram6@    tty10@   tty24@  tty38@  tty51@  tty8@    vcsa2@  vmnet8
dsp@      input/      ptmx       ram7@    tty11@   tty25@  tty39@  tty52@  tty9@    vcsa3@  vmnet9
fb/       kmem        pts/       ram8@    tty12@   tty26@  tty4@   tty53@  urandom  vcsa4@  zero
fb0@      kmsg        ram0@      ram9@    tty13@   tty27@  tty40@  tty54@  vc/      vcsa5@
fd@       log=        ram1@      random   tty14@   tty28@  tty41@  tty55@  vcc/     vcsa6@
fd0       loop0       ram10@     rd/      tty15@   tty29@  tty42@  tty56@  vcs@     vcsa7@
fd1       mem         ram11@     rtc@     tty16@   tty3@   tty43@  tty57@  vcs1@    vmmon
fd2       microcode@  ram12@     shm/     tty17@   tty30@  tty44@  tty58@  vcs2@    vmnet0
fd3       misc/       ram13@     sound/   tty18@   tty31@  tty45@  tty59@  vcs3@    vmnet1
full      mixer@      ram14@     stderr@  tty19@   tty32@  tty46@  tty6@   vcs4@    vmnet2
hda       null        ram15@     stdin@   tty2@    tty33@  tty47@  tty60@  vcs5@    vmnet3

Mind you, the internal dvd writer is registered by the kernel.. Here's the output of dmesg

Code:

Probing IDE interface ide0...
hda: TOSHIBA MK8025GAS, ATA DISK drive
elevator: using anticipatory as default io scheduler
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
hdc: SONY DVD+RW DW-P50A, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15

As for the external dvd writer, when i connect it, i now only get this,

Code:

usb 1-5: USB disconnect, address 3
usb 1-5: new high speed USB device using ehci_hcd and address 4

Back in 2.4.28, it used to assign it to /dev/sr1 ...

I'm not sure if i missed anything in the kernel that i should have enabled.. and tbh, i'm not sure why i dont even have hdc, or sr0, sr1 in /dev anymore... All i know is that i don't need SCSI emulation (or SCSI as a whole) anymore in 2.6.10 for my dvd writers..

Thanks

EDIT: Forgot to show you my /etc/fstab

Code:

/dev/hda3        swap             swap        defaults         0   0
/dev/hda2        /                ext3        defaults         1   1
/dev/hda4        /home            ext3        defaults         1   2
/dev/cdrom       /mnt/cdrom       iso9660     noauto,owner,ro  0   0
/dev/sr1         /mnt/dvd         iso9660     noauto,owner,ro  0   0
#/dev/fd0         /mnt/floppy      auto        noauto,owner     0   0
devpts           /dev/pts         devpts      gid=5,mode=620   0   0
proc             /proc            proc        defaults         0   0
tmpfs           /dev/shm        tmpfs           defaults        0  0

xushi · 01-23-2005, 01:36 PM

One down, one to go

Turns out i had to edit /etc/lilo.conf, and replace
append="hdc=ide-scsi"
with
append="hdc=ide-cd"

save, exit, type
lilo
reboot, ls /dev/ and hdc is there..

However, i still have the external dvd writer to sort out.. When i type 'dmesg' i get

Code:

usb 1-5: USB disconnect, address 3
usb 1-5: new high speed USB device using ehci_hcd and address 4
root@xushitop:~#

So i'm going to try and add
append="hdc=ide-cd ehci_hcd=ide-cd"
reboot, and see if that works too or not.

EDIT : external usb dvd didn't work =/ stuck..

xushi · 01-24-2005, 05:26 PM

I'm still stuck, but a little update..
I've enabled
USB Support -> USB Mass Storage support (m)
as a module, and now, dmesg outputs

Code:

usb 1-5: new high speed USB device using ehci_hcd and address 5
scsi1 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 5
usb-storage: waiting for device to settle before scanning
  Vendor: _NEC      Model: DVD_RW ND-2510A   Rev: 2.04
  Type:   CD-ROM                             ANSI SCSI revision: 00
usb-storage: device scan complete

So the kernel can see and verify the external dvd writer properly. But i still can't figure out how to mount it.. There is no hdd, or sr0 in /dev..

Code:

root@xushitop:/dev# d
agpgart@  full        misc/      ram13@  sound/   tty18@  tty31@  tty45@  tty59@   vcs2@   vmnet0
cdrom@    hda         mixer@     ram14@  stderr@  tty19@  tty32@  tty46@  tty6@    vcs3@   vmnet1
console   hda1        null       ram15@  stdin@   tty2@   tty33@  tty47@  tty60@   vcs4@   vmnet2
core@     hda2        nvidia0    ram2@   stdout@  tty20@  tty34@  tty48@  tty61@   vcs5@   vmnet3
cpu/      hda3        nvidia1    ram3@   tty      tty21@  tty35@  tty49@  tty62@   vcs6@   vmnet4
dri/      hda4        nvidiactl  ram4@   tty0@    tty22@  tty36@  tty5@   tty63@   vcs7@   vmnet5
dsp@      hdc         port       ram5@   tty1@    tty23@  tty37@  tty50@  tty7@    vcsa@   vmnet6
dvd@      initctl|    ppp        ram6@   tty10@   tty24@  tty38@  tty51@  tty8@    vcsa1@  vmnet7
fb/       input/      ptmx       ram7@   tty11@   tty25@  tty39@  tty52@  tty9@    vcsa2@  vmnet8
fb0@      kmem        pts/       ram8@   tty12@   tty26@  tty4@   tty53@  urandom  vcsa3@  vmnet9
fd@       kmsg        ram0@      ram9@   tty13@   tty27@  tty40@  tty54@  usb/     vcsa4@  zero
fd0       log=        ram1@      random  tty14@   tty28@  tty41@  tty55@  vc/      vcsa5@
fd1       loop0       ram10@     rd/     tty15@   tty29@  tty42@  tty56@  vcc/     vcsa6@
fd2       mem         ram11@     rtc@    tty16@   tty3@   tty43@  tty57@  vcs@     vcsa7@
fd3       microcode@  ram12@     shm/    tty17@   tty30@  tty44@  tty58@  vcs1@    vmmon

hdc = internal dvd writer btw.
Any help appreciated.

xushi · 01-25-2005, 05:02 PM

bump.
Anyone? =(
I'm still stuck with this..

perfect_circle · 01-26-2005, 01:56 PM

Quote:

Turns out i had to edit /etc/lilo.conf, and replace
append="hdc=ide-scsi"
with
append="hdc=ide-cd"

I don't think you need the append at all.

Quote:

usb 1-5: new high speed USB device using ehci_hcd and address 5
scsi1 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 5
usb-storage: waiting for device to settle before scanning
Vendor: _NEC Model: DVD_RW ND-2510A Rev: 2.04
Type: CD-ROM ANSI SCSI revision: 00
usb-storage: device scan complete

Maybe you just have to create the device node, since your drive is being detected, using mknod.
Why don't u try

Code:

mknod /dev/sr0 b 0 11

(I don't know much about 2.6, it's just a guess)

xushi · 01-26-2005, 03:34 PM

Code:

root@xushitop:~# mknod /dev/sr0 b 11
mknod: wrong number of arguments

I'm sure i've missed something somewhere.. Coz i saw how hdc was automatically created once i fiddled around with lilo.conf..

perfect_circle · 01-26-2005, 05:20 PM

first of all you forgat a zero.
But it was wrong anyway.
I think this is it:

Code:

mknod /dev/sr0 b 11 0

Quote:

I'm sure i've missed something somewhere.. Coz i saw how hdc was automatically created once i fiddled around with lilo.conf..

using ide-scsi did create the nodes in my system automatically, but I had to create the node for my usb modem. It was not created automatic, after loading the modules.
I used to get this kernel message:

Code:

hub.c: new USB device 00:10.0-1, assigned address 2

and after i created ttyACM0 i got this:

Code:

ub.c: new USB device 00:10.0-1, assigned address 2
ttyACM0: USB ACM device

Also check if you got all the modules you need up. Some of them have different names on 2.6. I can't help you on this.

artistikone · 01-27-2005, 05:44 PM

Have you checked in /dev/usb ? With 2.6.10 you no longer need SCSI emu. The append line is correct. You can also check /var/log/messages for udev output to see where it's creating the device.

jawkins · 01-27-2005, 06:40 PM

Do you have SCSI disk/CD support enabled in your kernel? AFAIK you still need SCSI support for USB storage devices in 2.6. It's just IDE/ATAPI drives that no longer need to use the SCSI emulation layer for writing.

Jim

xushi · 01-28-2005, 11:54 AM

Sorry for the late reply,

mknod failed miserably, and i dont see why the system isnt doing all this in the first place

/dev/usb has only
lp0

here is the output o f/var/log/messages

Code:

Jan 28 17:44:30 xushitop kernel: usb 1-5: new high speed USB device using ehci_hcd and address 4
Jan 28 17:44:31 xushitop kernel: SCSI subsystem initialized
Jan 28 17:44:31 xushitop kernel: Initializing USB Mass Storage driver...
Jan 28 17:44:31 xushitop kernel: scsi0 : SCSI emulation for USB Mass Storage devices
Jan 28 17:44:31 xushitop kernel: usbcore: registered new driver usb-storage
Jan 28 17:44:31 xushitop kernel: USB Mass Storage support registered.
Jan 28 17:44:36 xushitop kernel:   Vendor: _NEC      Model: DVD_RW ND-2510A   Rev: 2.04
Jan 28 17:44:36 xushitop kernel:   Type:   CD-ROM                             ANSI SCSI revision: 00

That's for the external ide > usb drive.. nothing about the internal (hdc) one.. =(

No, i don't have scsi disk/cd support, but here's my settings
for SCSI Device support

SCSI device support (m)
legacy /proc/scsi support (*)

That's it. I was told the SCSI support was depreciated in 2.6 for burning CD and DVDs.. but anyway ill give it a try.

Currently, still stuck with the external one. My internal one burns to say 20% of CD, stalls, fixates, and then fails with cdrecord unknown error code 254

xushi · 01-28-2005, 12:16 PM

FINALLY

some light shed on me... A thousand thanks jawkins, i've enable scsi cd/disk and sr0 is back again, and i can mount my ext dvd drive to it..

Now i have to test the burning on them 2 and see if that works.

I don't really mind if ide-scsi has been depreciated.. its been a week now, and if it works, then i'm happy

I'll keep you all posted

EDIT:
External DVD Drive (USB)

Code:

usb 1-5: new high speed USB device using ehci_hcd and address 5
scsi1 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 5
usb-storage: waiting for device to settle before scanning
  Vendor: _NEC      Model: DVD_RW ND-2510A   Rev: 2.04
  Type:   CD-ROM                             ANSI SCSI revision: 00
sr0: scsi3-mmc drive: 40x/40x writer cd/rw xa/form2 cdda tray
Attached scsi CD-ROM sr0 at scsi1, channel 0, id 0, lun 0
usb-storage: device scan complete

Internal DVD Drive

Code:

    ide1: BM-DMA at 0x4c48-0x4c4f, BIOS settings: hdc:DMA, hdd:pio
hdc: SONY DVD+RW DW-P50A, ATAPI CD/DVD-ROM drive
hdc: ATAPI 24X DVD-ROM CD-R/RW drive, 8192kB Cache, UDMA(33)