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Jinidog
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 Posted: Fri Jan 21, 2005 6:02 pm Post subject: Bad DVD; now nothing plays anymore |
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Hello,
I played a DVD that had some damages on it.
In the middle of the film, the film stopped and it took half an hour until I was able to access a console and killing gmplayer.
But after that incident no DVD works anymore.
Even another DVD that really works refuses.
I tried it by deleting /dev/dvd and hoped, that udev would restore everything after the next reboot.
Sadly /dev/dvd is now missing and what is more worth:
When I try something like mounting /dev/cdroms1 (what is still there) I get the following error:
"mount: Zu viele Ebenen aus symbolischen Links"
I cannot translate that too well, it says that there are problems with symbolic links.
I got the same error when I tried to mount /dev/dvd before I deleted it.
Can somebody help me?
How can one DVD prevent me from playing any other DVD?
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NeddySeagoon
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| Posted: Fri Jan 21, 2005 6:11 pm Post subject: |
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Jinidog,
If the dvd that did the damage was physically damaged, it could have damaged the drive, so now, nothing works.
Are you able to play music CDs throght the CD channel on your sound card?
Provided that works, the drive is OK.
What did /dev/dvd used to point to?
If you use Xine or mplayer, you can use the real path name to the /dev special file, and not bother with the symbolic link at all.
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Jinidog
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| Posted: Fri Jan 21, 2005 6:40 pm Post subject: |
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The DVD was not damaged physically, it event had no scratches.
The people in the DVD-shop said that it was polished.
I'm not able to mount any DVD or CDROM anymore.
Mount wants me to specify the filesystem and if I do so, the error above is displayed.
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NeddySeagoon
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| Posted: Fri Jan 21, 2005 6:49 pm Post subject: |
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Jinidog,
How is your DVD connected to your PC?
Which IDE channel, primary or slave device?
Do you use SCSI emulation for the DVD or not?
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Jinidog
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| Posted: Fri Jan 21, 2005 8:23 pm Post subject: |
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It's secondary slave.
I tested the device under Windows, where it is working.
So it must be my Gentoo.
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NeddySeagoon
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| Posted: Fri Jan 21, 2005 8:32 pm Post subject: |
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Jinidog,
DoThat should return a path like ../ide/host3/bus0/target0/lun 0/cd or another symbolic link. If its a symbolic link, repeat the command for the new link until you get the real device file.
mount /dev/<path_to_real_device /mnt/Some/Mount/Point should mount a data CD or a DVD. If that works, it confirms that your symbolic links are broken and need to be remade.
I'm still trying to set up udev, so I cannot advise on how to fix them properly yet.
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Jinidog
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| Posted: Fri Jan 21, 2005 9:40 pm Post subject: |
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That's quite funny.
/dev/cdroms/cdrom0 points to /dev/hdd, which points to ide/host0/bus1/target1/lun0/cd, which points back to /dev/hdd.
Mounting it is not possible, same error.
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NeddySeagoon
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| Posted: Fri Jan 21, 2005 9:57 pm Post subject: |
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Jinidog,
| Code: | | /dev/ide/host0/bus1/target1/lun0/cd |
should be the real device file for your DVD, not a symbolic link.
Delete it and reboot to see if udev creates the real device file then.
You have a circular chain of symbolic links, that must be wrong.
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Jinidog
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| Posted: Fri Jan 21, 2005 10:06 pm Post subject: |
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I deleted it, but it was not recreated anymore, although /dev/hdd still points on it.
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Headrush
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| Posted: Fri Jan 21, 2005 10:12 pm Post subject: |
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If you run the command
is there information listed about your drive?
/dev/hdd is just a link, you can deleted it. udev should create the link if your system is recognizing the drive.
Last edited by Headrush on Fri Jan 21, 2005 10:13 pm; edited 1 time in total |
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NeddySeagoon
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| Posted: Fri Jan 21, 2005 10:12 pm Post subject: |
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Jinidog,
You can manually create the device file with /sbin/MAKEDEV. Unfortunately I don't know the major and minor numbers needed for the command. However, udev should be doing this for you.
Do you have coldplug emerged ?
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Jinidog
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| Posted: Fri Jan 21, 2005 10:13 pm Post subject: |
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Of course.
| Quote: |
hdd: LG DVD-ROM DRD-8120B, ATAPI CD/DVD-ROM drive |
As I said, I just played a DVD and after that failed, all this crap is happening.
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Jinidog
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| Posted: Fri Jan 21, 2005 10:15 pm Post subject: |
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| Quote: |
Do you have coldplug emerged ? |
I've merged it, but I don't start it.
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Headrush
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| Posted: Fri Jan 21, 2005 10:16 pm Post subject: |
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Add coldplug to your startup scripts and restart to be safe. | Code: | | rc-update add coldplug boot |
Remove all the references to your DVD in /dev before rebooting.
Udev should take care of everything for you after that.
Do you have any modifications to your udev conf files to make the links to /dev/dvd ? |
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scithe
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Joined: 12 Jan 2005
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| Posted: Fri Jan 21, 2005 10:39 pm Post subject: Re: Bad DVD; now nothing plays anymore |
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| Jinidog wrote: |
"mount: Zu viele Ebenen aus symbolischen Links"
I cannot translate that too well, it says that there are problems with symbolic links.
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Translation:
"mount: Too many levels of symbolic links"
(i hope this is helpful) |
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NeddySeagoon
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| Posted: Fri Jan 21, 2005 10:48 pm Post subject: |
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scithe,
Your translation ties in with having a set of circular symlinks.
That would definetly be too many.
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NeddySeagoon
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Jinidog
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| Posted: Fri Jan 21, 2005 11:08 pm Post subject: |
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Booting with coldplug did not help.
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Headrush
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| Posted: Sat Jan 22, 2005 2:23 am Post subject: |
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| Jinidog wrote: | | Booting with coldplug did not help. |
And you erased the previous entries to that drive? (including all symlinks) |
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Jinidog
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| Posted: Sat Jan 22, 2005 9:02 am Post subject: |
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I deleted everything, but it doesn't return after restarting with coldplug.
Perhaps my udev is malfunctioning?
Perhaps I didn't set it up correctly.
I merged udev and I'am not mounting devfs at startup (kernel).
Perhaps I'm running a devfs without knowing.
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Jinidog
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| Posted: Sat Jan 22, 2005 9:08 am Post subject: |
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I restarted withount devfs support in the kernel.
Nothing changed.
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Robelix
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| Posted: Sat Jan 22, 2005 10:28 am Post subject: |
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Are you able to boot a livecd or knoppix from that drive?
robelix
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Jinidog
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| Posted: Sat Jan 22, 2005 10:29 am Post subject: |
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Yes, I am.
The drive is okay, as I tested it under windows.
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Jinidog
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| Posted: Sat Jan 22, 2005 6:04 pm Post subject: |
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Perhaps this should be moved to another board, because it is not really related to Mulitmedia anymore.
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Headrush
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| Posted: Sat Jan 22, 2005 6:40 pm Post subject: |
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Better make sure you'd don't have devfsd running, that would create a lot of problems.
Make sure you have udevd running and not devfsd. (You should not see devfsd listed) |
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Jinidog
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| Posted: Sat Jan 22, 2005 9:23 pm Post subject: |
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udevd is listed, devfsd not
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