Jan Depner wrote:
>I don't know about FC 2 but on FC 1 I use /dev/dvd. It is linked on my
>system to /dev/scd0. My fstab entry looks like this:
>
>/dev/dvd /mnt/dvd udf,iso9660
>noauto,owner,kudzu 0 0
>
>Jan
>
>
>
>On Tue, 2004-11-30 at 13:55, Matt Barber wrote:
>
>
>>Hi,
>>
>>Here's something that's been stumping me:
>>
>>
>>Our DVD drive (Plextor 708A) can read and mount CDroms and it can play
>>CD-Audio, but it can't read or write DVDs (anything that tries to use it
>>gives a "no medium found" error).
>>
>>$ mount /dev/cdrom
>>mount: No medium found
>>
>>similar error message with k3b...
>>
>>The problem is not playing DVDs with xine or anything like that - I
>>can't get the drive to even acknowledge there's anything in it.
>>
>>
>>Some computer info:
>>
>>
>>Dual Opteron (tyan thunder mobo)
>>SATA hard drives (western digital)
>>
>>Fedora 2 planetccrma setup:
>>
>>$ uname -r
>>2.6.7-1.437.1.ll.rhfc2.ccrmasmp
>>
>>(using this kernel for now because cdburning in other newer kernels
>>hardlocks the system -- through 2.6.8.1... haven't tested past that)
>>
>>here's something from /var/log/messages I get when I put in a DVD:
>>
>>Nov 30 12:07:30 madking kernel: hda: packet command error: status=0x51 {
>>DriveReady SeekComplete Error }
>>Nov 30 12:07:30 madking kernel: hda: packet command error: error=0x44
>>Nov 30 12:07:30 madking kernel: ATAPI device hda:
>>Nov 30 12:07:30 madking kernel: Error: Hardware error -- (Sense
>>key=0x04)
>>Nov 30 12:07:30 madking kernel: Tracking servo failure -- (asc=0x09,
>>ascq=0x01)
>>Nov 30 12:07:30 madking kernel: The failed "Read Cd/Dvd Capacity"
>>packet command was:
>>Nov 30 12:07:30 madking kernel: "25 00 00 00 00 00 00 00 00 00 00 00
>>00 00 00 00 "
>>
>>
>>the corresponding dmesg lines:
>>
>>cdrom: open failed.
>>hda: packet command error: status=0x51 { DriveReady SeekComplete Error }
>>hda: packet command error: error=0x44
>>ATAPI device hda:
>> Error: Hardware error -- (Sense key=0x04)
>> Tracking servo failure -- (asc=0x09, ascq=0x01)
>> The failed "Read Cd/Dvd Capacity" packet command was:
>> "25 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 "
>>
>>
>>
>>
>>
>>cd drive info:
>>
>>cdrecord -scanbus
>>
>>when run as user:
>>
>>scsibus0:
>> 0,0,0 0) 'PLEXTOR ' 'DVDR PX-708A ' '1.04' Removable
>>CD-ROM
>> 0,1,0 1) *
>> 0,2,0 2) *
>> 0,3,0 3) *
>> 0,4,0 4) *
>> 0,5,0 5) *
>> 0,6,0 6) *
>> 0,7,0 7) *
>>
>>when run as root:
>>
>>scsibus0:
>> 0,0,0 0) '' '' '' Disk
>> 0,1,0 1) *
>> 0,2,0 2) *
>> 0,3,0 3) *
>> 0,4,0 4) *
>> 0,5,0 5) *
>> 0,6,0 6) *
>> 0,7,0 7) *
>>scsibus1:
>> 1,0,0 100) '' '' '' Disk
>> 1,1,0 101) *
>> 1,2,0 102) *
>> 1,3,0 103) *
>> 1,4,0 104) *
>> 1,5,0 105) *
>> 1,6,0 106) *
>> 1,7,0 107) *
>>
>>
>>
>>$ cat /proc/sys/dev/cdrom/info
>>CD-ROM information, Id: cdrom.c 3.20 2003/12/17
>>
>>drive name: hda
>>drive speed: 40
>>drive # of slots: 1
>>Can close tray: 1
>>Can open tray: 1
>>Can lock tray: 1
>>Can change speed: 1
>>Can select disk: 0
>>Can read multisession: 1
>>Can read MCN: 1
>>Reports media changed: 1
>>Can play audio: 1
>>Can write CD-R: 1
>>Can write CD-RW: 1
>>Can read DVD: 1
>>Can write DVD-R: 1
>>Can write DVD-RAM: 0
>>Can read MRW: 1
>>Can write MRW: 1
>>Can write RAM: 1
>>
>>
>>
>>
>>
>>hdparm info:
>>
>>$ hdparm /dev/hda
>>
>>/dev/hda:
>> HDIO_GET_MULTCOUNT failed: Invalid argument
>> IO_support = 3 (32-bit w/sync)
>> unmaskirq = 1 (on)
>> using_dma = 1 (on)
>> keepsettings = 0 (off)
>> readonly = 0 (off)
>> readahead = 256 (on)
>> HDIO_GETGEO failed: Invalid argument
>>
>>
>>$ hdparm -tT /dev/hda
>>
>>/dev/hda:
>>read() failed: Input/output error
>> Timing buffered disk reads: read() failed: Input/output error
>>
>>
>>Not sure what other info to give. I don't have much of a way to
>>troubleshoot the problem by process of elimination - I have a Pioneer
>>drive that I can try later today... we have another box with the same
>>kernel, but it's a P4 and uses IDE drives. My instinct is that it's
>>some kind of conflict between IDE and SCSI, but it could be a problem
>>with the 64-bit processors (using x86, though, not x86_64, which is not
>>available on planetccrma yet) or it could be an smp thing (if it's not
>>the drive) -- lame segfaults on the opteron box but not on the P4 box,
>>so I think that is probably a 64bit/smp issue, and so this DVD problem
>>could be similar. I will try the other drive later today and see if it
>>makes a difference.
>>
>>Thanks,
>>
>>Matt
>>
>>
>>
>
>
>
>
Looking at your errors some questions come to mind: (1) Is your cd/dvd
player really /dev/hda? Usually that's the first harddrive. (2) Do you
have the udf module loaded or do you have udf support compiled into the
kernel? On my FC2 box /dev/cdrom and /dev/dvd both link to /dev/hdc
which is correct. Just some thoughts that might help.
Rick B
