Re: cdrom_id (udev) causes "No disk in drive" warning for ide devices with removable media

[Kay Sievers <kay.sievers@vrfy.org>]

On Thu, Sep 08, 2005 at 02:43:29PM +0200, Thomas Heinz wrote:
> The following gentoo rule is responsible for handling my ide zip drive 
> (ide-floppy driver).
> 
> BUS="ide",     KERNEL="hd[a-z]", ACTION="add", IMPORT="/sbin/cdrom_id
> --export $tempnode"
> 
> cdrom_id tries to open the device and the kernel outputs the message. 
> Debian seems to handle the issue differently with the following rule.
> 
> BUS="ide", KERNEL="hd[a-z]", SYSFS{removable}="1", \
>   PROGRAM="/etc/udev/scripts/ide-model.sh %k", RESULT="IOMEGA ZIP *", \
>                                         NAME="%k", 
> OPTIONS+="all_partitions"
> 
> 
> Do you consider it the distributors' job to fix the issue or would you 
> rather fix cdrom_id?

cdrom_id itself can't know what kind of device it is before it has opened
it. No idea why the kernel still prints this. I thought we removed all these
stupid messages.
It would be nice to have all the information available in /sys that is
only in /proc, but the IDE maintainers are not really interested in
proper driver core integration. Hopefully the libata effort will move
everything including parallel ata to the scsi layer some day, which provides
all what we need in /sys.

You may try to add something like this to the ide cdrom_id rule:
  ... , PROGRAM="/bin/cat /proc/ide/%k/media", RESULT="cdrom",  ...

I didn't test it and I don't remember if "cdrom" was the right value here.
(I don't have cdrom in the last box that uses the old ide drivers.)

Would be nice if you could test this?

Thanks,
Kay


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