From owner-freebsd-current Mon Aug 23 23:32: 0 1999 Delivered-To: freebsd-current@freebsd.org Received: from gilliam.users.flyingcroc.net (gilliam.users.flyingcroc.net [207.246.128.2]) by hub.freebsd.org (Postfix) with ESMTP id B21BE15968 for ; Mon, 23 Aug 1999 23:29:17 -0700 (PDT) (envelope-from ross@gilliam.users.flyingcroc.net) Received: (from ross@localhost) by gilliam.users.flyingcroc.net (8.9.3/8.9.3) id XAA04885; Mon, 23 Aug 1999 23:28:30 -0700 (PDT) Date: Wed, 18 Aug 1999 13:19:16 -0700 (PDT) Message-Id: <199908240628.XAA04885@gilliam.users.flyingcroc.net> From: "Andrew Atrens" Reply-To: "Andrew Atrens" To: Doug Ambrisko Cc: current@FreeBSD.ORG Subject: Re: cd writer recommendation? Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Wed, 18 Aug 1999, Doug Ambrisko wrote: > I think that most IDE CD-R/CD-RW will just work using Soren's ata driver > in current. I'm doing that on my laptop right now with a hacked pccard and > hacked ata driver. Also I have an external IDE hard disk as well. I do have > a problem with buffer underflows when do a mkisofs to a 4X write over > PCMCIA. 2X works fine. Making your dd blocksize a multiple (say 10) of physical blocksize should cure this. I use something like: AUBLKSIZE=2352 AUWRSIZE=5 AURDSIZE=`expr $AUWRSIZE '*' 2` OBS=`expr $AUBLKSIZE '*' $AUWRSIZE` IBS=`expr $AUBLKSIZE '*' $AURDSIZE` rtprio 5 team -v 1m 5 <$1 | \ rtprio 4 dd ibs=$IBS of=$WORM obs=$OBS conv=osync || exit ymmv, Andrew. -- +-- | Andrew Atrens Nortel Networks, Ottawa, Canada. | | All opinions expressed are my own, not those of any employer. | --+ Heller's Law: The first myth of management is that it exists. Johnson's Corollary: Nobody really knows what is going on anywhere within the organization. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message