Joerg Schilling wrote: > Gerardo Exequiel Pozzi <vmlinuz386@xxxxxxxxxxxx> wrote: > > >> Now i tested the latest alpha version of cdrecord ( >> cdrtools-2.01.01a57.tar.gz ) and its work perfect without the DMA problem. >> The version that failed was <= cdrtools-2.01.01a55.tar.gz, with these >> versions i need to set very low write speed (when i upgraded my DVD >> writer from PATA to SATA, both LG) >> > > There always was the documented way to set the environment variable > "CDR_FORCESPEED" and setting "burnfree" also disables the speed limit. > > Now > > Ohh OK. Yes, I was aware of the variable "CDR_FORCESPEED" but not actually used by the warning given by the manual about it. But now it seems this behavior is by default, am I right? Was unaware of the option burnfree enable this feature, thanks;) >> Now inform this: "cdrecord: Warning: The DMA speed test has been >> skipped." http://djgera.pastebin.com/m35195bbe >> >> I prefer to use cdrecord, is the soft that i used for 7 years with my >> previus distribution (Slackware Linux) and as you said, is updated very >> often. >> >> Thanks for the work! :) >> > > Thank you > > >> I take this message to make a consultation, this was one of the major >> topics of discussion between you and some Linux developers. Does >> cdrecord: allowing access through dev=/dev/xyz, or as the message says: >> "Warning: Open by 'devname' is unintentional and not supported". will be >> removed in future versions? >> > > If currently works, but this is not a supported feature and thus it may > stop working at any time. > > I recommend to use the official syntax that is used by libscg since August 1986. > Note that if you only have one drive, there is no need to specify dev= at all. > > It seems to me or I'm wrong?. This syntax requires to work properly generic scsi module and via /dev/sr0 don't need it?. I did not compile this (sg) on my system. But for example if execute: $ cdrecord dev=ATAPI -scanbus Cdrecord-ProDVD-ProBD-Clone 2.01.01a57 (i686-pc-linux-gnu) Copyright (C) 1995-2009 Jörg Schilling scsidev: 'ATAPI' devname: 'ATAPI' scsibus: -2 target: -2 lun: -2 Warning: dev=ATA: is preferred over dev=ATAPI:. Warning: Using ATA Packet interface. Warning: The related Linux kernel interface code seems to be unmaintained. Warning: There is absolutely NO DMA, operations thus are slow. This Warning appears. That's why I prefer to use it that way and avoid problems, and I prefer not to load the module sg, because it loads the SATA hard drives as generic devices, adding this to the already loaded scsi disks sd) Apparently, I have to load the module sg ATA mode to work. Thanks for the help Jörg. :) > Jörg > > Greetings from Argentina. -- Gerardo Exequiel Pozzi ( djgera ) http://www.djgera.com.ar KeyID: 0x1B8C330D Key fingerprint = 0CAA D5D4 CD85 4434 A219 76ED 39AB 221B 1B8C 330D
