Re: How to prevent a volume to be mounted?
Re: How to prevent a volume to be mounted?
- Subject: Re: How to prevent a volume to be mounted?
- From: Rob McKeever <email@hidden>
- Date: Tue, 27 Mar 2007 10:32:51 -0700
Hi Florian,
You can use DiskArbitration to do this via disk approval callbacks.
I'd grab a copy of the source from <http://www.opensource.apple.com/
darwinsource/> as well if you haven't already. It comes in very
handy when trying to figure out how to do stuff like this.
-Rob
--
Rob McKeever, email@hidden
Developer Technical Support, CoreOS/Hardware
Apple Computer
--------------------------------
WWDC 2007 • June 11-15 • Moscone West • San Francisco, CA
http://developer.apple.com/wwdc/
On Mar 27, 2007, at 9:47 AM, MacXperte wrote:
This question has been asked in 2005 on the carbon-dev list:
http://lists.apple.com/archives/carbon-dev/2005/Jun/msg00480.html
I found a partial solution, that doesn't help in my case.
The problem is simply to have a drive, that when plugged in will
neither mount as a Volume nor produce an error-message. Adding an
entry to fstab with the mount-option noauto will perfectly do the
trick (at least as long as fstab is still respected), but only on
machines thet were patched that way.
In my case it is a USB-MassStorageDevice with two separate drives
(not partitions), where one of those should be silently ignored. So
I am looking for a solution that will work on any unaltered Mac OS
System. It must be done on the disk itself. (And no, hiding the
mount-point is not enough.)
So far I've tried every partitioning trick I could think of: All
documented APM-partition-types and several MBR partition-types
including EE (EFI). I even tried setting the no-auto-mount bit in
the APM-record. Always the same result: if there is anything
mountable, it will be mounted; if not, there is an error-message.
What I did'nt try so far is playing with Software-RAID like
partitions, GUID partitioning and UFS special-partitions. Any idea
in those fields?
In a more global aproach: Please somebody with insight in the
diskarbitration framework tell me if there is any chance of
crafting a disk that will be ignored, or if there simply is no
third branch in the code besides mount or error. If so, maybe there
should be an exception inserted, something like: volumes named
".NoAutoMount" won't be mounted.
Thanks in advance, any idea welcome
Florian
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