Date: Wed, 10 Jan 1996 10:16:43 -0800 (PST) From: Doug White <dwhite@riley-net170-164.uoregon.edu> To: Annelise Anderson <ANDRSN@HOOVER.STANFORD.EDU> Cc: questions@FreeBSD.ORG Subject: Re: Device Problems Message-ID: <Pine.BSF.3.91.960110101140.1144C-100000@gdi.uoregon.edu> In-Reply-To: <01HZTL1RW8U000AB2F@HOOVER.STANFORD.EDU>
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On Tue, 9 Jan 1996, Annelise Anderson wrote: I want to supplement Mr. Robey's answer here... > The new kernel booted just fine. I downloaded some *.au files > and tried > cat test.au > /dev/pcaudio > and got "device not configured." Tried /dev/speaker with the same > result. With cat test.au > dev/nca0, it sent the file to the printer. Again, pca0 is thepc speaker; you want /dev/audio or /dev/dsp0. Don't forget to do ``./MAKEDEV snd0'' to make the audio devices. > may have been created in this process. The only entry in /dev/bak > was var. This I deleted and tried copying just one file, /dev/zero, > to /dev/bak. This filled up the file system to 109%. I finally > found the offending file and deleted it. /dev/zero is a special device that generates an endless supply of 0's. Sounds like you had lots of fun in /dev. You might consider trying to rebuild the /dev directory so that the devices you deleted/destroyed can be regenerated. Don't ask me how to do that though :-) (lots of MAKEDEV?) > No doubt some time I will find this very funny, as you may well now. > Meanwhile I'm puzzled about not being able to make a copy of a device > file and getting them overwritten. It's not a god idea to go around``copying'' device files since they are not normal files, and thus don't react nicely to commands like `cp'. You can redirect to them, but copy/moving them doesn't work (or make much sense, IMHO) > Any explanations of what I did wrong and what's going on would be > appreciated. Hope this helps. Doug White | University of Oregon Internet: dwhite@gladstone.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major
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