Messages in this thread | | | Date | Fri, 29 Sep 2000 11:41:20 +0200 | From | Lars Steinke <> | Subject | ide-scsi seems to inhibit mounting CD-ROMs |
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Hello all,
this problem seems to have been discussed on linux-kernel in January but with no apparent solution:
When using ide-scsi to access a CDRW writer, the recording process works but I am not able to mount any CD-ROM media in that drive for reading.
support@support:~$ sudo mount /dev/scd0 /mnt/cdrw mount: you must specify the filesystem type support@support:~$ sudo mount -t iso9660 /dev/scd0 /mnt/cdrw mount: block device /dev/scd0 is write-protected, mounting read-only mount: wrong fs type, bad option, bad superblock on /dev/scd0, or too many mounted file systems
Mounting the same CD-ROM in the CD-ROM drive works just fine using mount /dev/hdb /mnt/cd. Judging from syslog the problem is with with ide-scsi, not the hardware...
syslog: Sep 29 09:31:30 support kernel: VFS: Disk change detected on device sr(11,0) Sep 29 09:31:31 support kernel: ide-scsi: The scsi wants to send us more data than expected - discarding data Sep 29 09:31:31 support last message repeated 83 times Sep 29 09:31:31 support kernel: Unable to identify CD-ROM format.
support@support:~$ cat /proc/scsi/ide-scsi/0 SCSI host adapter emulation for IDE ATAPI devices
support@support:~$ cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: PLEXTOR Model: CD-R PX-W1210A Rev: 1.01 Type: CD-ROM ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 00 Lun: 01 Vendor: PLEXTOR Model: CD-R PX-W1210A Rev: 1.01 Type: CD-ROM ANSI SCSI revision: 02 ... up to LUN 07
support@support:~$ sudo cat /proc/ide/hdc/model PLEXTOR CD-R PX-W1210A
support@support:~$ sudo cat /proc/ide/hdc/driver ide-scsi version 0.9
support@support:~$ sudo cdrecord -scanbus Cdrecord 1.8 (i686-pc-linux-gnu) Copyright (C) 1995-2000 Jörg Schilling Using libscg version 'schily-0.1' scsibus0: 0,0,0 0) 'PLEXTOR ' 'CD-R PX-W1210A' '1.01' Removable CD-ROM 0,1,0 1) * 0,2,0 2) * 0,3,0 3) * 0,4,0 4) * 0,5,0 5) * 0,6,0 6) * 0,7,0 7) *
support@support:~$ sudo lsmod Module Size Used by isofs 17488 1 (autoclean) sg 11776 0 sr_mod 15100 0 ide-scsi 7156 0 scsi_mod 50384 3 [sg sr_mod ide-scsi] nfsd 142948 8 (autoclean) lockd 30696 1 (autoclean) [nfsd] sunrpc 52292 1 (autoclean) [nfsd lockd]
support@support:~$ uname -a Linux support 2.2.17 #4 Thu Sep 28 16:41:24 CEST 2000 i686 unknown
support@support:~$ sudo lspci 00:00.0 Host bridge: Intel Corporation 440BX/ZX - 82443BX/ZX Host bridge (rev 03) 00:01.0 PCI bridge: Intel Corporation 440BX/ZX - 82443BX/ZX AGP bridge (rev 03) 00:04.0 ISA bridge: Intel Corporation 82371AB PIIX4 ISA (rev 02) 00:04.1 IDE interface: Intel Corporation 82371AB PIIX4 IDE (rev 01) 00:04.2 USB Controller: Intel Corporation 82371AB PIIX4 USB (rev 01) 00:04.3 Bridge: Intel Corporation 82371AB PIIX4 ACPI (rev 02) 00:09.0 Multimedia audio controller: Ensoniq ES1371 [AudioPCI-97] (rev 06) 00:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RT8139 (rev 10) 01:00.0 VGA compatible controller: ATI Technologies Inc 3D Rage Pro AGP 1X/2X (rev 5c)
lilo.conf: # Kernel command line options that apply to all installed images go # here. See: The `boot-prompt-HOWO' and `kernel-parameters.txt' in # the Linux kernel `Documentation' directory. # append="hdc=ide-scsi"
Let me know if any additional information is needed for analysis of the problem...
Regards, -- /(__ __|\ Lars Steinke, Physicist, Albert- ( \/ __)_ Ludwigs-University, Freiburg, DE ) (_____ / For information see www.lsweb.de /___________/ Debian GNU/Linux: www.debian.org [unhandled content-type:application/pgp-signature] | |