Date: Sun, 5 Jun 2005 22:23:56 -0400 From: Steven Friedrich <FreeBSD@InsightBB.com> To: "Ted Mittelstaedt" <tedm@toybox.placo.com> Cc: freebsd-questions@freebsd.org Subject: Re: link in handbook appears to be broken Message-ID: <200506052223.56680.FreeBSD@InsightBB.com> In-Reply-To: <LOBBIFDAGNMAMLGJJCKNIEKKFBAA.tedm@toybox.placo.com> References: <LOBBIFDAGNMAMLGJJCKNIEKKFBAA.tedm@toybox.placo.com>
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On Sunday 05 June 2005 06:48 pm, Ted Mittelstaedt wrote: > >-----Original Message----- > >From: owner-freebsd-questions@freebsd.org > >[mailto:owner-freebsd-questions@freebsd.org]On Behalf Of Steven > >Friedrich > >Sent: Sunday, June 05, 2005 8:20 AM > >To: Ted Mittelstaedt > >Cc: freebsd-questions@freebsd.org > >Subject: Re: link in handbook appears to be broken > > > >On Saturday 04 June 2005 01:04 am, Ted Mittelstaedt wrote: > >> Hi Steven > >> > >> Please don't waste time with this. development of burncd is pretty > >> much > >> dead. Even the CD's on the list that it supported (of which > > > >I have one) > > > >> often didn't work right. And all of them are old, no longer in > >> production. > >> burncd is there so if you have a burner sitting around you can plug > >> it in and see if it works. > >> > >> These days most people use the ATAPI/CAM driver with IDE > > > >burners, see: > > > > > >http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/creati > >ng-cds.ht > > > >> ml#ATAPICAM > >> > >> Ted > > > >Ok, but I'm getting nearly the same error with cdrecord. > > > >cdrecord -blank=all -eject dev=toshiba seemed to work ok. > >cdrecord dev=toshiba cd1.iso didn't complain > >but then mount /cdrom produced > >acd0: READ_BIG - MEDIUM ERROR asc=0x15 ascq=0x00 error=0x00 > > > > > >Can someone tell me where to find the meanings of these codes? > > What you see is what you get - the error "MEDIUM ERROR" seems pretty > clear to me - it means that the CD you burned isn't readable. What > are you after - a masters thesis spewed out for every little error? > That would bloat the code. > > FreeBSD tells you there's an error it's your job to find out why > there is one. > > Since as you said in your other posting you are making good CD's at > low-speed burn, and frizbees at high speed burn, there is a good chance > you > are underrunning the buffer in the burner. Get a faster CPU or live with > lower speed burns. > > UNIX is a preemptive operating system. That means that during your CD > burn, if something else goes on in the system by some other process, > then your burning process gets paused. If the burner you are using has > a very small internal buffer than it will run out of data and you will > produce a frisbee. > > WinXP by contrast lets apps like Roxio basically halt the OS while > your doing some time-critical operation. That's fine for a single-user > OS but pretty stupid for a server what has lots of people using it > all the time. That is why people don't use WinXP for servers. > > You cna try playing with the nice command and your cd burns and see if > you can make any difference. > > Ted My machines (2) are 2.4 GHz pentium 4s. I use the same drive and media under winXP and using Roxio, I've burned freeBSD 4.11 ISOs and booted from them. The Memorex 1x-4x media worked with cdrecord but the Memorex 4x-12x media doesn't, even when I tell it to burn at 4x like the 1x-4x media did. I'm not expecting the software to decode the asc, ascq, and error codes, but I do expect to find them documented in a header or a book, man page, somewhere. -- i386 FreeBSD 4.11-STABLE There are 10 types of people in this world. Ones that understand binary and then, the others.
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