[SOLUTION] Re: Troubles with SCSI LUNS (IDE CD-RW with SCSI emulation
First of all, many thanks to Eduard Bloch.
The trouble is that SCSI support is loaded as a module, so I must pass the
argument max_scsi_luns to that module instead of using lilo. Steps are:
1) edit /etc/modutils/aliases and add an entry as:
options scsi_mod "max_scsi_luns=1"
2) run update-modules
3.1) reboot the system or...
3.2) ...alternatively do: rmmod ide-scsi; rmmod scsi_mod; modprobe ide-scsi
Now it works fine.
On Sunday 03 March 2002 16:40, you wrote:
> Hi there,
>
> My name's Francisco; I've been using LiNUX since years ago, but not a
> Debian distribution (I've tested a Debian 1.3.1 it years ago also but I
> drop it as soon as dselect appeared on stage...). Now I've decide to try it
> again and, in general, I like it a lot :-D
>
> Well, and now my first little big trouble...
>
> I've a Sony CD-RW CRX1611 that I've been using until yesterday below SuSE
> 7.3. In SuSE, I must dissable its DMA and use max_scsi_luns=1 on lilo.conf
> append because both, cd-writer (/dev/hdc) and cd-rom (/dev/hdd) are
> detected as if they have two luns each one. I've the same trouble under
> Debian, but max_scsi_luns that resolve this on SuSE did NOT work in
> Debian... This is the lilo append line:
>
> append="max_scsi_luns=1 hdc=ide-scsi hdd=ide-scsi"
>
> Of course, I've exec lilo after changes, reboot the system and these
> things... Take a look at boot messages:
>
> [...]
>
> Kernel command line: auto BOOT_IMAGE=Linux ro root=302 max_scsi_luns=1
> hdc=ide-scsi hdd=ide-scsi
>
> [...]
>
> SCSI subsystem driver Revision: 1.00
> scsi0 : SCSI host adapter emulation for IDE ATAPI devices
> Vendor: SONY Model: CD-RW CRX1611 Rev: TYS7
> Type: CD-ROM ANSI SCSI revision: 02
> Vendor: SONY Model: CD-RW CRX1611 Rev: TYS7
> Type: CD-ROM ANSI SCSI revision: 02
> Vendor: TOSHIBA Model: CD-ROM XM-6402B Rev: 1008
> Type: CD-ROM ANSI SCSI revision: 02
> Vendor: TOSHIBA Model: CD-ROM XM-6402B Rev: 1008
> Type: CD-ROM
>
> [...]
>
> It seems like max_scsi_luns has no effect... :-/
>
> I'm using woody, with 2.4.16-686 kernel.
>
> More related information:
>
> crom:~# cdrecord -scanbus
> Cdrecord 1.10 (i686-pc-linux-gnu) Copyright (C) 1995-2001 Jörg Schilling
> Linux sg driver version: 3.1.20
> Using libscg version 'schily-0.5'
> scsibus0:
> 0,0,0 0) 'SONY ' 'CD-RW CRX1611 ' 'TYS7' Removable CD-ROM
> 0,1,0 1) 'TOSHIBA ' 'CD-ROM XM-6402B ' '1008' Removable CD-ROM
> 0,2,0 2) *
> 0,3,0 3) *
> 0,4,0 4) *
> 0,5,0 5) *
> 0,6,0 6) *
> 0,7,0 7) *
> crom:~# lsmod | grep scsi
> ide-scsi 7392 0
> scsi_mod 84824 2 [sg ide-scsi]
> ide-mod 129452 3 (autoclean) [ide-scsi ide-disk
> ide-probe-mod]
> crom:~#
>
> Does anyone know what can I do with this?
>
> TIA
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