ide cd writer problem with sg
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Quoted 40 lines · Michel Briand
hello,
i use an IDE cdwrite with sg, and when thoses modules are loaded, cdrecord -scanbus works :sg 24036 0 (autoclean) ide-scsi 7648 0 (autoclean) scsi_mod 49804 2 (autoclean) [sg ide-scsi]which produces :
Cdrecord 1.11a19 (i686-suse-linux) Copyright (C) 1995-2002 Jörg Schilling Linux sg driver version: 3.1.22
Using libscg version 'schily-0.6'
scsibus0:0,0,0 0) 'LITE-ON ' 'LTR-16102B ' 'OS0E' 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) *Nice.
But to mount the cdrom i experience some problems. Note that i have :
- kernel 2.4.18
- cd support compiled as modules :scsi_mod, ide-scsi, sg,sr_mod, ide-cd, cdrom (all modules)
- only one cdwriter, no cdrom :/dev/hdcand no/dev/hddi.e. with find
/proc/ide-type d -ls :4307 0 dr-xr-xr-x 4 root root 0 jui 29 00:51 /proc/ide/ 4327 0 dr-xr-xr-x 3 root root 0 jui 29 00:51
/proc/ide/ide1
4332 0 dr-xr-xr-x 2 root root 0 jui 29 00:51/proc/ide/ide1/hdc
4308 0 dr-xr-xr-x 4 root root 0 jui 29 00:51/proc/ide/ide0
4320 0 dr-xr-xr-x 2 root root 0 jui 29 00:51/proc/ide/ide0/hdb
4313 0 dr-xr-xr-x 2 root root 0 jui 29 00:51/proc/ide/ide0/hda
Quoted 6 lines
and when i issue this command, i get an error :
bubus:/media # modprobesr_mod
bubus:/media # mount/dev/cdrom/media/cdrom -t iso9660 mount : Périphérique de bloc/dev/cdrom est protégé en écriture. Montage en lecture seule.
mount: N'est pas un répertoire
Michel,
It seems to be saying that /media/cdrom is not a directory. Perhaps you could show us "ls -l /media".
Also /dev/cdrom is probably a symlink to /dev/scd0, could you confirm that?
cdrecord and the sg driver are finding the ATAPI writer ok (as indicated by "cdrecord -scanbus") so I don't think there is a problem with your cd writer or sg.
<snip/>
Doug Gilbert
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I run in a new test.
Excuses me, and thank you for your patience.
I've theses modules loaded :
sr_mod 11800 0 sg 24036 0 (autoclean) sd_mod 9980 0 (autoclean) (unused) isofs 24864 0 (autoclean) inflate_fs 17984 0 (autoclean) [isofs] vfat 9436 0 (autoclean) fat 29400 0 (autoclean) [vfat] cdrom 28736 0 [sr_mod] ide-scsi 7648 0 scsi_mod 49804 4 (autoclean) [sr_mod sg sd_mod ide-scsi] via82cxxx_audio 18432 1 (autoclean) ac97_codec 9632 0 (autoclean) [via82cxxx_audio] uart401 6144 0 (autoclean) [via82cxxx_audio] sound 53580 0 (autoclean) [via82cxxx_audio uart401] soundcore 3364 5 (autoclean) [via82cxxx_audio sound] n_hdlc 6112 1 (autoclean) ppp_synctty 4832 1 (autoclean) NVdriver 821184 14 (autoclean) joydev 6816 0 (unused) input 3168 0 [joydev] ipt_TCPMSS 2336 1 (autoclean) ipt_TOS 1024 22 (autoclean) ipt_MASQUERADE 1216 1 (autoclean) ipt_state 608 77 (autoclean) ipt_LOG 3136 127 (autoclean) ip_nat_ftp 2944 0 (unused) ip_conntrack_ftp 3200 0 (unused) ppp_generic 15848 3 (autoclean) [ppp_synctty] slhc 4624 0 (autoclean) [ppp_generic] ne2k-pci 5056 1 8390 5952 0 [ne2k-pci] ipt_REJECT 2880 3 (autoclean) iptable_mangle 2144 1 (autoclean) iptable_nat 12852 2 (autoclean) [ipt_MASQUERADE ip_nat_ftp] ip_conntrack 13036 3 (autoclean) [ipt_MASQUERADE ipt_state
ip_nat_ftp ip_conntrack_ftp iptable_nat]iptable_filter 1760 1 (autoclean)ip_tables 10560 11 [ipt_TCPMSS ipt_TOS ipt_MASQUERADEipt_state ipt_LOG ipt_REJECT iptable_mangle iptable_nat iptable_filter]
usb-uhci 21508 0 (unused) usbcore 48992 1 [usb-uhci]
And I run the command :
bubus:/media # mount /dev/scd0 /media/cdrom -t iso9660 mount : Périphérique de bloc/dev/scd0 est protégé en écriture. Montage en lecture seule.
mount: N'est pas un répertoire
And this is the output of tail -f /var/log/messages :
Aug 5 13:50:55 bubus kernel: SCSI cdrom error : host 0 channel 0 id 0 lun 0 return code = 28000000 Aug 5 13:50:55 bubus kernel: Current sd0b:00: sns = 70 4 Aug 5 13:50:55 bubus kernel: ASC= 8 ASCQ= 3 Aug 5 13:50:55 bubus kernel: Raw sense data:0x70 0x00 0x04 0x00 0x00 0x00 0x00 0x0a 0x00 0x00 0x00 0x00 0x08 0x03 0x00 0x00 0x00 0x00 Aug 5 13:50:55 bubus kernel: I/O error: dev 0b:00, sector 80 Aug 5 13:50:55 bubus kernel: ISOFS: unable to read i-node block
Note that before I do a modprobe sr_mod I received another error message, and when I loaded it, I see in logs :
Aug 5 13:38:34 bubus kernel: Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0 Aug 5 13:38:34 bubus kernel: sr0: scsi3-mmc drive: 40x/40x writer cd/rw xa/form2 cdda tray Aug 5 13:38:34 bubus kernel: Uniform CD-ROM driver Revision: 3.12 Aug 5 13:38:42 bubus kernel: VFS: Disk change detected on device sr(11,0)
What do you think of this mess ?
Thank you for your help, again ;-)
Michel
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