Can't play CD / mount CDROM

Michael Neeff cool_mike_21 at hotmail.com
Mon May 2 20:59:58 PDT 2005


Hey Toomas,

Thanks for your detailed reply. As far as problem #1: When I re-complied to 
statically include the sound it gives me no output, not even when I used 
kldload to load the driver... it simply loads without any output... How do I 
check mixer settings?
I am religiously following step by step instructions to the installation: 
Chapter 7.2.3:
Did this screw up my output?
# sysctl hw.snd.pcm0.vchans=4
# sysctl hw.snd.maxautovchans=4


As for problem #2 which is the frustrating part and I need to get working is 
- I used to be able to mount my /cdrom and view files on the CD - even if 
they meant MP3s & even it meant I could not play them back... Now it simply 
goes to the error: cd9660: device /dev/acd0 Input/Ouput error
It's been the start of week#3 and this is taking too long to setup one 
operating system !! (that's where windoze wins, simply pop in the CD and 
forget-about-da-rest). I guess I lost my original kernel so that's why I'm 
in an endless loop... :o(

Thanks for your response I'll send y'all the output from the 'grep acd0 
/var/run/dmesg.boot'  I'm away from my PC right now.

>From: Toomas Aas <toomas.aas at raad.tartu.ee>
>To: Michael Neeff <cool_mike_21 at hotmail.com>
>CC: questions at freebsd.org
>Subject: Re: Can't play  CD / mount CDROM
>Date: Mon, 02 May 2005 23:23:13 +0300
>
>Hi Michael!
>
>I was hoping someone can give you a more definite answer, but it seems 
>no-one knowledgeable has responded, so here are my comments, worth exactly 
>what you paid for them :)
>
>>I've been trying since the past couple of days to get my sound back... it 
>>all started when I followed the steps from the manual in setting up 
>>statically sound drivers for my old Compaq DeskPro EN series...for FreeBSD 
>>5.3. I included the "snd_sbc" driver, since when I kldload snd_driver it 
>>comes up as ESS 1869 in my kernel file (MYKERNEL).. I also included the 
>>line "device sound" in the MYKERNEL (customized kernel Chp. 7) for some 
>>reason it doesn't work when I want to run mpg123...
>
>The above stuff seems roughly correct. That's how I built sound into kernel 
>on my home PC, but I'm not at that PC now so I can't check my kernel 
>config.
>
>What do you mean by "it doesn't work"? Do you get an error message? Or 
>simply nothing happens? In the latter case, check your mixer settings, 
>speaker volume knob and physical connections.
>
>After building sound into kernel, you can also remove the relevant module 
>loading lines from /boot/loader.conf, but I think that even if you left 
>them in it shouldn't prevent sound from working - you would just get an 
>error message saying something to the tune of "file already exists", 
>meaning that the functionality for which you are trying to load the module 
>is already included in the kernel.
>
>>...Anyways this is the least of my problems. I now comment the lines: 
>>device snd_sbc, device sound recomplie the kernel and keep getting cd9660: 
>>device /dev/acd0 Input/Ouput error when I try to mount any of my CDs... 
>>(music or data)
>
>You shouldn't try to mount music CDs since they don't contain any 
>filesystem that can be mounted. The error message above is exactly what you 
>get when you try to mount an audio CD. Mounting data CDs should work, 
>though.
>
>Does the command 'grep acd0 /var/run/dmesg.boot' contain any text?
>
>>I've tried : mount -t cd9660 /dev/acd0 /cdrom and several other 
>>combinations :
>>mount cd9660 /dev/acd0 /cdrom; mount cd9660; mount_cd9660 /dev/acd0 
>>/cdrom; mount /cdrom  - still the same thing...
>
>At least *some* of the above commands should work ;-)
>
>>I even tried loading my old kernel (GENERIC)  from /boot/kernel.old/kernel 
>>(Btw, is this the same as the last recompile of MYKERNE?L... I think I 
>>have compiled 3/4 times by now in the hopes that this would work)
>
>Yes, every time you build an install new kernel, the previous kernel is 
>copied to kernel.old and previous kernel.old is wiped out. So it is well 
>possible that you don't even have the original kernel with which things 
>worked on your system any more.
>
>>HELP - I'm a newbie... I've got almost everything working with KDE 
>>3.3...and now back to this. I was so happy when I could run cdcontrol from 
>>the command line and now I'm :o( frustrated !!
>
>One more thing you could try is to get the GENERIC kernel from e.g. 
>installation CDs and boot with that.
>
>--
>Toomas Aas --------------------------------------------------------
>|arvutivõrgu peaspetsialist | head specialist on computer networks|
>|Tartu Linnakantselei       | Tartu City Office                   |
>----------------------------------------------------- +372 736 1274
>
>




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