MacOS – Error while using setfile to set icon for dmg created via hdiutil in mac

dmgiconmacos

I have created an app & signed using "Developer ID Application: x" certificate. then using hdiutil i created the dmg

hdiutil create -size 1.5m -format UDRW myapp.dmg -srcfolder ./myapp/ -fs HFS+

to set the drive icons when i execute the below commandsit throws the error

# custom drive volume icon..
#cp drive_icon.icns /Volumes/myapp/.VolumeIcon.icns
#SetFile -c icnC /Volumes/myapp/.VolumeIcon.icns //(throws error -5000)
dev:Unexpected error. (-5000) on file: /Volumes/myapp/.VolumeIcon.icns

I thought it would be related to size and increased the size of dmg from 1.5m to 4.5m but that also not helps, image size is 291kb and the overall app size is 666kb.

I created the .app in build machine (mac 10.10 xcode6.2), and tried creating this hdutil in our codesigning server (mac 10.11). can anyone tell me where it went wrong.

In the man page I see setfile is deprecated is there any other equivalent command to do

Thanks and Regards, Saravana

Best Answer

found another way to set icon. Right click the DMG file and click "GetInfo" Drag and drop the icon file to the icon location present in the GetInfo dialog box. it sets.

Thanks and regards, Saravana

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Auto unmount .dmg if it has not been accessed for a while

The OS doens't allow that out of the box (neither for dmg nor real partitions).

What I would do is create a script that would listen to that mounted image and after x time idle, unmount it.

Applescript is a fairly simple way to get that working (or via an automator flow).

Some pointers:

(the tricky part is getting the disk image idle)

http://www.mactech.com/articles/mactech/Vol.20/20.07/FolderWatching/index.html

http://webcache.googleusercontent.com/search?q=cache:IjvM1V_MxroJ:macscripter.net/viewtopic.php%3Fid%3D39468+&cd=4&hl=en&ct=clnk&client=safari

Checking for folder/file changes using Automator?

How to run Applescript on Disk mount

Automatically launch a program or action when an external drive or disk is connected

I'll make an example later today, but the flow will be like this:

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monitor this disk access (every x time, to save processor)

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MacOS – Set a custom dock icon for an application instance via Terminal

I don't have a complete solution for you, but from looking through the man pages, I think I kinda see how one might be crafted.

open(1) provides the --args option for passing arguments on to the invoked application.
emacs(1) will read values from an .Xresources file. One of the values it reads is emacs.iconName.
X allows you to select Xresources for a specific app by setting $XENVIRONMENT to contain the path of a file containing Xresource values. Also, X programs are supposed to support the -name and -title options for setting (I think) the name of an Xresource file to be loaded and/or the title of the application instance.

So I haven't tested this, but you might be able to do something like:

open -n -a Emacs.app --args "-name <resource-file-path> -title school"

Then, in the resource file, a line that says

emacs.iconName:<path-to-school-icon-file>

In another resource file, you'd have iconName set to a work icon, etc.

If you try this, I'd be interested in knowing how it works out.

Best Answer

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Auto unmount .dmg if it has not been accessed for a while

MacOS – Set a custom dock icon for an application instance via Terminal

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