Re: /dev? for USB dvdrw drive?
Dnia środa, 11 maja 2005 22:07, Thomas H. George napisał:
The emulation of scsi in 2.6 kernels exist. The problem with usb devices is
that in kernel config normaly used is wrong.
The position CONFIG_BLK_DEV_UB has to be put in "n" for no.
Normally it is put as "m" for module which cripple the scsi emulation for usb.
I don't know why but this is what I have googled and it work form my usb
devices.
The position is in Device Drivers - Block devices in kernel tree. Of course
You have to compile kernel yourself.
> On my backup 2.4.26 kernel the mount point for my Sony dvdrw drive is
> /dev/sr1.
>
> When I boot to my 2.6.8 kernel /dev/sr1 does not exist. The drive is
> recognized by lsusb but this just gives the bus # and device #.
>
> This must be because scsi emulation is on for the 2.4.26 kernel but not
> for the 2.6.8 kernel. When I compile a 2.6.8 kernel with scsi emulation
> hotplug crashes the system when a usb device is unplugged.
>
> I understand that scsi emulation should not be needed with a 2.6.8
> kernel and, indeed, I can access my cdrw drive at /dev/hdd with cdrecord
> with dev="ATA:1,1,0"
>
> I don't remember how I determined that the dvdrw drive was located at
> /dev/sr1 when running with the 2.4.26 kernel. When I connect a USB
> jumpdrive while the 2.4.26 kernel is running, the /dev/ mount point is
> reported. This does not work with the 2.6.8 kernel and neither kernel
> shows the mount point of dvdrw drive when it is connected.
>
> I'm sure there is some elementary way to determine the mount point but
> it escapes me. I would appreciate being pointed in the right direction.
>
> Tom George
--
z.a.kaleta (sanskryt), registered Linux User #279350
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