Messages in this thread | | | Date | Fri, 20 Sep 2002 20:44:38 +0200 | From | Paul Bristow <> | Subject | Re: Dont understand hdc=ide-scsi behaviour. |
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Use the line hdc=ide-scsi hdd=ide-floppy
and all should be well, even if using ide-floppy as a module
Miles Lane wrote:
>On Thu, 2002-09-19 at 23:46, Brad Hards wrote: > > >>-----BEGIN PGP SIGNED MESSAGE----- >>Hash: SHA1 >> >>On Fri, 20 Sep 2002 07:08, Reg Clemens wrote: >> >> >>>I dont understand the behaviour of kernel 2.4.18 (and probably all others) >>>when I put the line >>> hdc=ide-scsi >>>on the load line. >>> >>>I would EXPECT to get the ide-scsi driver for hdc (my cdwriter) but instead >>>get it for BOTH hdc and hdd, the cdwriter and the zip drive. >>> >>>After starting this way (with hdc=ide-scsi), I find that >>> /dev/cdrom2 -> /dev/scd0 >>>and that to access the zip drive I have to use /dev/sda1 (or /dev/sda4) >>> >>> >>There are two slightly different things happening, I think. >> >>1. When you say hdc=ide-scsi, you are telling the IDE system that you don't >>want to use the normal IDE interfaces to userland (such as ide-cdrom), but >>instead want all access to this device to be accessed through the SCSI >>midlayer (and associated SCSI interfaces, like the sg and scd drivers). So >>ide-scsi becomes the driver, instead of ide-cdrom. You should be able to see >>this in /proc/ide/hdc/driver >> >>2. ide-scsi is greedy, and will grab any IDE device without a driver. ATAPI >>floppy devices (hopefully) like your zip drive need the IDE floppy device >>driver, which is probably not loaded. What does CONFIG_BLK_DEV_IDEFLOPPY >>equal in your kernel config? >> >> --
Paul
Email: paul@paulbristow.net Web: http://paulbristow.net ICQ: 11965223
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