Re: My DVD reader doesn't always load....
- From: JB <jb.1234abcd@xxxxxxxxx>
- Date: Sun, 3 Apr 2011 16:36:56 +0000 (UTC)
DB <Freddog_de <at> yahoo.co.uk> writes:
...
b) here's the tail output....
Dave <at> Fedora-Blue ~]$ sudo tail /var/log/messages
Apr 3 15:29:11 Fedora-Blue kernel: [83978.355678] sr 4:0:0:0: [sr0]
CDB: Read(10): 28 00 00 1f ff 6a 00 00 02 00
Apr 3 15:29:11 Fedora-Blue kernel: [83978.355694] end_request: I/O
error, dev sr0, sector 8388008
Apr 3 15:29:11 Fedora-Blue kernel: [83978.355703] Buffer I/O error on
device sr0, logical block 1048501
...
Basically, tells me SFA! & when I tried loading a workable DVD, there
is nothing in /var/log/messages to compare it with...
...
Well, at least I have learned something. I had to look it up ...
SFA means "Sweet F**k All", slang for "nothing" :-)
Keep in mind that I am not expert on this, just a user and an observer who
tries to deduce causes of it all :-)
Your inability to read your media (properly) may have at least two causes:
- media settings (faulty code) in your KDE
I am a GNOME user, but you should be able to find it in KDE as well.
It is about:
File Management Preferences - Media - Media Handling
Choose what happens when inserting media ... etc.
- kernel scsi interface and driver problem
Also, you should test it (inserting and reading media) in both KDE and
command line environment, while watching and documenting
'# tail /var/log/messages' output after every event or entry:
- KDE, under various media handling scenarios (see above)
- in xterm only, using any combinations of entries
e.g.
a). do some basic scsi, drive, and driver checking (man wodim)
# wodim -checkdrive
# wodim -scanbus
# wodim --devices
etc
b). then, insert your media
# df
pay attention to mount options ...
# mount
# umount /media/<whatever>
# mount -t auto /dev/sr0 /media
# ls /media/*
It would be good if you test your drive by preparing small iso file and
burn a CD-RW disk (or CD-R if you want to be wasteful).
This should also show you potential errors, and confirm if your drive is
healthy or not.
Document action and faulty behavior/error output to be able to file
a Bugzilla report, most probably to kernel scsi subsystem maintainers.
Btw, yesterday I was in trouble with my notebook CD/DVD R/W drive when
I wanted to burn a CD-RW disk.
I tried it with Brasero disk burner app - failure.
I tried it with 'wodim' on the command line, even 'wodim -scanbus' told me to
f*k off due to something like "... inability to recognize scsi interface or
finding a driver ...".
After rebooting I was able to make it work with wodim.
I do not remember anything like that happening ever ...
That tells me perhaps there is a common problem for all of us, and not
specific to GNOME, KDE, or any of their applications, but rather to wodim
or kernel scsi interface and drivers.
JB
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