Re: Running from DMG
Re: Running from DMG
- Subject: Re: Running from DMG
- From: Brad Peterson <email@hidden>
- Date: Sun, 11 Feb 2007 07:43:59 -0800 (PST)
Hi Dirk,
Thank you!
I think I'm missing something, though: How does this
behavior differentiate a CD from a DMG? Wouldn't they
both fail to unmount in this situation?
Thanks,
B
--- "Dirk Stegemann (Mailing-Lists)"
<email@hidden> wrote:
> Hello Brad,
>
> you could use the hdiutil tool to try to unmount the
> volume your
> running application resides on. The unmount process
> itself should
> fail, though, but the error differs for different
> situations.
> E.g. failing to umount a disk image your app is
> running from contains
> the error code "49153".
> Failing to umount a network share will result in "no
> such file or
> folder".
>
> hdiutil detach /Volumes/TheVolumeYourAppResidesOn/
>
>
> The exact error message might differ between system
> versions,
> especially as these error messages posted by hdiutil
> are localized
> (unfortunately). So you will have to experiment a
> bit and parse
> hdiutil's output.
>
> Also, the hdiutil man page (<x-man-page://hdiutil>)
> states that using
> the "/Volumes/yourvolumename/" path to unmount a
> disk image does work
> for Mac OS X 10.4 systems only the Mac OS X 10.3
> version of hdiutil
> expects the device path (e.g. "/dev/disk1s2").
> Run "hdiutil attach /path/to/your/diskimage" to see
> your mounted disk
> image's device path. I do not know the tool(s) used
> to get the device
> path for a certain mounted volume...
>
> hth
>
> Best regards,
> Dirk Stegemann
>
>
>
> Am 11.02.2007 um 16:53 schrieb Brad Peterson:
>
> > Hi all,
> >
> > I know there's a way for an app to determine if
> it's
> > running from a mounted removable volume (just get
> the
> > path, see if it's in the NSWorkspace
> > mountedRemovableMedia list).
> >
> > However, I'd like to be more specific than that
> and
> > determine whether I'm running from a mounted DMG.
> The
> > DMG could be writable, so the usual checks for,
> say, a
> > CD don't apply here.
> >
> > Any thoughts?
> >
> > Thanks!
> >
> > B
> >
> >
> >
> >
> >
>
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