site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com Hey Eric, Dan On 4 Sep 2007, at 12:55 PM, Eric Long wrote: Hi, 1. Some disks do not eject if I attach to them. They disappear from the desktop, but seem to remain mounted in some sense internally. I don't know why this is happening. Anyone else know what I need to do here? 2. Another issue is that the documentation warns that this filter mechanism does not work with CDs and DVDs. That's fine, except those still come through my probe method. I'm not sure what the most reliable means of identifying a device as a CD or DVD is. Also, what about something like Blue-Ray? I don't know what I should look for as a general mechanism to screen these out. 3. I screen out disk images by looking for the kIOPropertyPhysicalInterconnectLocationKey, which I hope is sufficient. I would like to support disk images, but if I delay at all publishing the child service, they seem to time-out and I get this "No mountable file system found" alert. 4. Filtered volumes show up in Disk Utility twice. I let the user choose which volumes to filter, so not all volumes are filtered. If the user selects an unfiltered volume and tries to repartition it, the OS unmounts the volume then remounts it. We see this new mount and prompt the user to ask about filtering. Whether or not the disk is filtered, Disk Utility hangs at this point and won't recover unless you unplug the volume in contention. While it makes sense to disable us while performing such operations, I can only advise this in my documentation. I really would prefer to avoid trouble all together. Anyone with ideas about this? Thanks for any help, Eric _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/markarian%40apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.a... That's fine, except those still come through my probe method. It is quite reasonable to probe CD or DVD media. It is not advisable to produce CD or DVD media by contrast. I'm not sure what the most reliable means of identifying a device as a CD or DVD is. You need not screen them out offhand. You must be careful with such exclusions, since the difference between DVD-RW and DVD-RAM is vast. Filtered volumes show up in Disk Utility twice. Is the volume actually mounted twice in BSD? I assume that might happen when the parent media appears to be something mountable to the system, so we go ahead and mount it while the child media is in limbo. It is advisable that the software tag the content with a custom partition type to prevent such scenarios, or else make sure that the filter scheme remain matched to the parent media during the query to the user, even if without a child media yet, so that we realize that it is of interest to you. I'm working on an IOMedia filter. It seems to work, but I have a few problems. This email sent to markarian@apple.com This email sent to site_archiver@lists.apple.com