version 5, including all changes.
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JohnMcPherson |
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scsi-ide is an kernel driver that provides a [SCSI] interface to [IDE] HardDisk / CD / DVD Drives. |
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MattBrown |
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It is most commonly used for CD Burning as all burning apparently needs to be done over a SCSI interface. |
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JohnMcPherson |
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!! [Kernel] support |
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To enable this in your kernel you must select the following options: |
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MattBrown |
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ATA/IDE/MFM/RLL support |
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IDE, ATA and ATAPI Block devices |
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SCSI emulation support |
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You also need to enable generic SCSI support in your kernel. |
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JohnMcPherson |
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You need the following [Kernel] modules, listed with their corresponding options: |
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; SCSI generic support : __sg.o__, CONFIG_CHR_DEV_SG |
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; %%% SCSI CD-ROM support : __sr.o__, CONFIG_BLK_DEV_SR |
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; %%% SCSI support : __scsi_mod.o__, CONFIG_SCSI |
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; %%% SCSI emulation support : __ide-scsi.o__, CONFIG_BLK_DEV_IDESCSI |
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!! Boot parameters |
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MattBrown |
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Then you will need to add a line similar to the following to your lilo/grub configuration (Example is for lilo) |
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append="ignore=hdc,hde hdc=ide-scsi hde=ide-scsi" |
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This tells the kernel not to use the native IDE driver for hdc and hde and instead to use the ide-scsi driver. |
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This should give you |
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/dev/scd0 which would be /dev/hdc otherwise |
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/dev/scd1 which would be /dev/hde otherwise |
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JohnMcPherson |
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JohnMcPherson |
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Say your CDR is be __hdc__ and the [CDROM] is __hdd__, then you need to add this line to your __/etc/lilo.conf__ to boot with the necessary [Kernel] options: |
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append="hdc=ide-scsi hdd=cdrom" |
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!! Module loading |
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Now you need to load the __ide-scsi__ module to emulate a [SCSI] interface on your existing [IDE] [CDROM] drive. Add the following entries to your __/etc/modules.conf__: |
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alias scd0 sr_mod # load sr_mod upon access of scd0 |
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pre-install sr_mod modprobe -k ide-scsi # load ide-scsi before sr_mod |
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pre-install sg modprobe -k ide-scsi # load ide-scsi before sg |
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In [Debian] [Woody], these go into __/etc/modutils/scsi__. Running __update-modules__ will copy them into __/etc/modules.conf__. |
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!! Device files |
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__/dev/sr''X''__ is the device generally used for [SCSI] [CDROM] support. On Linux, the device files are normally called __/dev/scd''X''__, and the __sr''X''__ devices are [SymLink]s. To set them all up automatically, do |
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# cd /dev && ./MAKEDEV sr |
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If you want to always use the __ide-scsi__ emulation, make __/dev/cdrom__ a symlink to __/dev/sr0__ and make sure __/etc/fstab__ uses __/dev/cdrom__ instead of __/dev/hd''X''__. |
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If you make ide-cd and ide-scsi both modules, you can change how the CD-ROM drive is accessed without rebooting, depending on which module is currently loaded. |
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PerryLorier |
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---- |
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CategoryKernel |
