Wow, MRW rox!!! quick question, when using the -p (poll) option in the utility it says the drive doesn't support format status. is this in the mrw spec, or is it vendor specific if the drive supports it or not? can you maybe stick the utility on your site? also i saw that sourceforge hsn't been updated in a very long time, is there a reason? keep up the good work! -Nigel On Sat, Jan 10, 2004 at 11:13:24AM +0100, Jens Axboe wrote:
On Fri, Jan 09 2004, Nigel Kukard wrote:
Hrmmm, I have an LG 52/24/52 drive... i tried adding the mrw patch, but i seem to get syslog messages saying the following when i echo 1 > /dev/sr1
Jan 9 10:33:57 nigel-lappy kernel: blk: queue d42afe18, I/O limit 4095Mb (mask 0xffffffff) Jan 9 10:33:57 nigel-lappy kernel: Vendor: HL-DT-ST Model: CD-RW GCE-8520B Rev: 1.02 Jan 9 10:33:57 nigel-lappy kernel: Type: CD-ROM ANSI SCSI revision: 02 Jan 9 10:33:57 nigel-lappy kernel: blk: queue d42afc18, I/O limit 4095Mb (mask 0xffffffff) Jan 9 10:33:57 nigel-lappy kernel: Attached scsi CD-ROM sr1 at scsi1, channel 0, id 0, lun 0 Jan 9 10:33:57 nigel-lappy kernel: sr1: scsi3-mmc drive: 40x/40x writer cd/rw xa/form2 cdda tray Jan 9 10:33:57 nigel-lappy kernel: scsi singledevice 1 0 1 0 Jan 9 10:33:57 nigel-lappy kernel: scsi singledevice 1 0 2 0 Jan 9 10:33:57 nigel-lappy kernel: scsi singledevice 1 0 3 0 Jan 9 10:33:57 nigel-lappy kernel: scsi singledevice 1 0 4 0 Jan 9 10:33:57 nigel-lappy kernel: scsi singledevice 1 0 5 0 Jan 9 10:33:57 nigel-lappy kernel: scsi singledevice 1 0 6 0 Jan 9 10:33:57 nigel-lappy kernel: scsi singledevice 1 0 7 0 Jan 9 10:34:35 nigel-lappy kernel: cdrom: bash opening for WRITE Jan 9 10:34:35 nigel-lappy kernel: sr1: disc change detected. Jan 9 10:34:35 nigel-lappy kernel: cdrom: sr1: mrw address space GAA selected
That's a bug in my older version, it's supposed to select DMA (defect managed area). Thanks to Peter for spotting that, weird mistake.
Jan 9 10:34:35 nigel-lappy kernel: cdrom open: mrw_status 'not mrw'
You need to initiate the background format first with the cdmrw tool. I've attached it for reference.
-- Jens Axboe