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SubjectRe: strange mounting problem

Guest section DW wrote:


> In your case this fails.
> You may check, just to be sure, that the kernel indeed sees
> the disk as removable. (It will say so in the boot messages.)
> Next, you may check in check_scsidisk_media_change() what
> the return status is of this SCSI_IOCTL_START_UNIT command.
> Just curiosity.
Ha, you're right, the kernel doesn't see the HP as removable, only the
sony is detected as a removable. (/var/log/dmesg)

> I seem to recall that you mentioned that this disk was SCSI-1
> and that things are fine for SCSI-2 compliant drives.

> Now that this fails in your case, apparently because it expects
> SCSI-2 behaviour, one may try to force things.
> The ioctl BLKRRPART will do revalidate_scsidisk() which does
> the required invalidate_*().
> So, you might try the (of course untested) eject program below.

This is somewhat Alan suggested to me. So I inserted the ioctl(fd,
BLKFLSBUF) directly into the eject code from Jeff Tranter. This works so
far. I have to test it and also your piece of code.
Also I got a feeling on how to send SCSI- commands to a device. (During
this investigations)
I feel now more able to try out things in this direction.

Thanks a lot for all your hints


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