From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <16ff6b980804180210t1c8b9957id92499d899665fe9@mail.gmail.com> Date: Fri, 18 Apr 2008 11:10:33 +0200 From: "Mathieu Lonjaret" To: "Fans of the OS Plan 9 from Bell Labs" <9fans@9fans.net> In-Reply-To: <82160047fbb605b636580759de1f0a93@plan9.bell-labs.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080412233010.GF4698@gluon> <82160047fbb605b636580759de1f0a93@plan9.bell-labs.com> Subject: Re: [9fans] new cdfs for DVDs and BDs Topicbox-Message-UUID: 9465efbc-ead3-11e9-9d60-3106f5b1d025 Hello, After (a pull and) some more experimentation and with the help of Erik, there's been some progress but I still have some problems. 1) It turns out that the "wrong format" issue was because of me being naive enough to assume that cdfs was doing all the magic of making an iso9660 fs out of the files one copies to /mnt/cd/wd. So copying a .iso file actually works fine for me with a CD-RW or a CD-R (Verbatim brand) so far. Dunno if it deserves maybe one line of warning about that in the manpage (maybe i missed it?)... 2) I eventually tried a DVD+R; it also works, except that since dma is not enabled, it is painfully slow. I haven't timed it properly but I think it took around 2 hours to burn a full 4.7GB debian iso. When I try to activate dma (either with dmaon command, or with "echo 'dma on' > /dev/sdC0/ctl") I get no message at first, but the next operation on the drive gets me a "disabling dma: not on a busmastering controller" message. Erik had me try a few changes in the sdiahci.c driver but to no avail so far. 3) No success at all in burning DVD+RW's (also Verbatim brand). Whether it be for blanking or directly burning, I still get the following message: "cmd #1a: cannot write medium - incompatible format" (#1a when trying to quickblank, #2a when trying to cp). So any help for 2) and/or 3) are welcome. Thanks, Mathieu On Sun, Apr 13, 2008 at 2:02 AM, wrote: > I would pull the current cdfs (source, binary and manual page) and try > again; there were fixes made up to and including March 25th. > > RW media has been working flawlessly for me, though I think that for > BD-RE I had to format rather than blank the media first. Make sure > you've run dmaon first. Which flavour of DVD RW are you using, plus > or minus? DVD+ certainly worked for me, but I didn't have much DVD- > media (since it's inferior). I've just written about 15 dual-layer > BD-Rs and that's worked fine except that, as now noted in cdfs(4), you > don't want to finalize BD-Rs if you write more than one track to a > BD-R. > > > -- GPG key on subkeys.pgp.net: KeyID: | Fingerprint: 683DE5F3 | 4324 5818 39AA 9545 95C6 09AF B0A4 DFEA 683D E5F3