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On 15 May, Philip Webb wrote: |
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> For the 1st time in 2 months, I went to write a CD & discovered |
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> that /dev/sr0 is not being created nor symlink /dev/cdrom ; |
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> I looked at 'dmesg': no mention of 'sr' or 'cd' being found. |
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> |
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> I've searched the Forum (more noise than signal as usual) & Bugs: nothing. |
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> |
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> I tested the drive: SystemRescue 1.1.0 (kernel 2.6.25.16) starts correctly |
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> & mounts /dev/sr0 on /mnt/cdrom ; its 'dmesg' says : |
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> |
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> sr0: scsi3-mmc drive: 16x/16x writer dvd-ram cd/rw xa/form2 cdda tray \ |
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> Uniform CD-ROM driver Revision: 3.20 |
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> |
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> BIOS reports "Auto-detecting PATA primary master: ATAPI CD-ROM". |
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> |
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> I updated to Hal-0.5.11-r8 on 090221 & Udev-124-r2 on 090418 ; |
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> I recompiled Udev, but that made no difference. |
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> I've checked the files which mention 'cd' in /etc/udev/rules.d |
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> & there is no difference today from those at 090315 , |
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> when I did my last system back-up & last used the CD drive. |
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> |
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> I've checked my kernel configs for 2.6.25 & 2.6.29 using 'gvimdiff' |
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> & there is no difference between the relevant sections in Devices. |
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> I updated to 2.6.29 on 090404 . |
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> |
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> I tried my other kernels with the following unnerving findings : |
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> 2.6.25 creates /dev/sr0 , but after X starts the mouse/keyboard fail; |
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> 2.6.23 & 2.6.22 create /dev/sr0 , but X won't start at all. |
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> |
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> I notice that under 'Device Drivers -> ATA/ATAPI/MFM/RLL Support' |
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> there are the lines : |
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> |
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> generic ATA/ATAPI disk support (NEW) |
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> [*] ATA disk support (NEW) |
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> [ ] ATAPI floppy support (NEW) |
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> < > Include IDE/ATAPI CDROM support (NEW) |
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> |
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> I didn't say 'y' to 'ATA ... Support', so both config files (25 & 29) say |
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> |
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> # CONFIG_IDE is not set |
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> |
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> This is because I understood that if you have |
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> 'SCSI device support -> SCSI CDROM support' enabled, |
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> then you shouldn't have 'ATA...RLL' enabled as well. |
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> Is this a vital change in 2.6.29 ? |
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> |
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> Has anyone else encountered this ? Does anyone have suggestions ? |
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> |
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|
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Is your CDwriter a SATA device? |
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|
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Here, 2.6.29-r3 works just fine with my SATA-dvd-writer. |
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|
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-- |
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Helmut Jarausch |
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|
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Lehrstuhl fuer Numerische Mathematik |
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RWTH - Aachen University |
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D 52056 Aachen, Germany |
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