Dear Atul, You have written : > Tathagata - the drive remains /dev/hdc from the kernel perspective even if > you are using ide-scsi emulation - the emulation only presents a > scsi-command emulation to the application, and translates them to IDE/ATA > commands for actual execution. But I cann't understand why you have choosen this scsi-ide interface. Simple IDE/ATA imaluation is sufficient. I am using MDK 9 with LG 40X CD-RW. It is working satisfactoryly using gcombust, only you have to increase fifo large enough.
I am searching another utility using which I'll be able to read/write UDF packet in a CD-RW, i.e., I want to use CD-RW just like a floppy, can you help me ? Sumit Burdwan ----- Original Message ----- From: "Atul Chitnis" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, February 07, 2003 11:08 AM Subject: Re: [ilug-cal] Re: Multisession CDs > On Fri, 7 Feb 2003, Anirban Biswas wrote: > > > Thanks a lot the problem is over with hdparm -d0 /dev/hdc , you are genius , > > errrr - no. I just read webpages like everyone else > > http://www.exocore.com/technologies/linux/rhl71dma/ > > This page is also referred to in the official CDROM HOWTO > > http://www.ibiblio.org/pub/Linux/docs/HOWTO/CDROM-HOWTO > > > Now I have some qus does DMA reamin dissable for hdc all the time or should I > > have to give the command before each burning seassions ?? > > If you have a DMA issue, it is an issue - period. You turn off DMA > permanently for that drive. > > If you use RHL, then > > cp /etc/sysconfig/hardisks /etc/sysconfig/harddiskhdc > vi /etc/sysconfig/harddiskhdc > > turn off DMA support > > USE_DMA=0 > > Save. From then on, DMA will be turned off for your CD writer. > > If you aren't using RHL, simply edit /etc/rc.d/rc.local > > Tathagata - the drive remains /dev/hdc from the kernel perspective even if > you are using ide-scsi emulation - the emulation only presents a > scsi-command emulation to the application, and translates them to IDE/ATA > commands for actual execution. > > In my earlier message, I wasn't quite clear what I meant by "Secondary > master" - I meant that the writer should not be on the same IDE interface > as the hard disks. Since all CD-devices are shipped set to "slave" mode by > default, the drive should be set to "master" if it is the only device on > the interface. > > > And to enable DMA I have to give hdparm -d1 /dev/hdc. Now should I > > enable it before data transfer from the hdc to hda. > > nope - if your drive has a DMA issue (which is often a combination of > hardware issues, BTW), then DMA is a no-no for your drive. period. BTW - > for the "but it works in windows" chanters - Windows by default turns off > DMA on all CD devices ;-). "Better safe than efficient/fast" is the MS > motto. > > Atul > > -- > ------------------------------------------- > Atul Chitnis | [EMAIL PROTECTED] > Exocore Consulting | http://www.exocore.com > Bangalore, India | +91 (80) 344-0397 > ------------------------------------------- > > > > -- > To unsubscribe, send mail to [EMAIL PROTECTED] with the body > "unsubscribe ilug-cal" and an empty subject line. > FAQ: http://www.ilug-cal.org/node.php?id=3 > -- To unsubscribe, send mail to [EMAIL PROTECTED] with the body "unsubscribe ilug-cal" and an empty subject line. FAQ: http://www.ilug-cal.org/node.php?id=3
