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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?
> I would EXPECT to get to them via /dev/hdd1 or /dev/hdd4.
And you will, with the right driver loaded :-)
> Did I miss something or is this a bug????
If you load ide-floppy before ide-scsi, and it still doesn't work, then there
is a bug.
Brad
- --
http://conf.linux.org.au. 22-25Jan2003. Perth, Australia. Birds in Black.
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This archive was generated by hypermail 2b29 : Mon Sep 23 2002 - 22:00:29 EST