VolumeIcon.icns file containing several sizes. To fix, you could retrieve the custom volume icon from a ZIP archive contained within each DiskMaker X application’s Contents/Resources/ folder, open it in Preview, copy, and paste into the icon of each volume’s Get Info window. open "/Volumes//.VolumeIcon.icns" in Terminal) will show those files don’t contain Startup Manager’s required sizes. Finder will display the largest size available in the file, but Startup Manager on a Mac with a non-Retina screen will display only the it32 size (128 x 128 72ppi), while a Mac with a Retina screen will prefer the ic08 size (256 x 256 72ppi) if available, falling back to the it32 size if not. This file is in the ICNS format, which defines this list of image size specifications that such a file can contain any number of. I did some investigation, and what did I find? Yep, more macOS bugs.Ī volume with a custom icon will have a hidden. When testing my completed drive, Startup Manager was showing all six partitions, but the ones for macOS 10.13 and later were only showing generic icons. Holding the Option key when powering on an Intel Mac brings up the EFI-based Startup Manager interface, which shows icons and names for all attached bootable volumes. ( Update 2022-03: Looking at this Apple support article, it appears they’ve fixed the problem the Apple Way™ by removing all references to the Sierra installer.) Custom icons in Startup Manager I’ve used their feedback form to raise the issue with a link back to this post. ![]() As of this writing, this Apple support page is still serving the affected installer from this URL. Sudo plutil -replace CFBundleShortVersionString -string "12.6.03" /Applications/Install\ macOS\ Sierra.app/Contents/istĪfter which DiskMaker X should run without issue.Įvidently, something within the reissued installer wasn’t updated to account for the new version number. With the Sierra installer, I ran into an issue where DiskMaker X would fail with the following error: I did find DiskMaker X 6 would occasionally skip setting a partition’s Finder window background, but this can easily be rectified by locating the appropriate background image within the app’s Contents/Resources/ directory and applying it via Finder’s View > Show View Options. click and wait for the shrinking to complete.in the Size box, increase its value by 0.2GB to leave around 200MB of free space (although I doubt it’s actually needed).reduce it to its smallest possible size.select the other half of the newly-split partition (instead of “Untitled”).with the drive selected in Disk Utility:.run DiskMaker X (version 6 for Yosemite through Sierra each subsequent release has its own dedicated app) to load the installer to the largest “Untitled” partition, remembering to select “Another kind of disk” so as not to wipe the entire drive.Then for each OS X/macOS version, I would: I started by opening Disk Utility, selecting View > Show All Devices, selecting the inserted drive, and erasing it as “Mac OS Extended (Journaled)” using “GUID Partition Map”. ![]() It’s possible to minimize the unused space on the drive by shrinking each partition after its installer has been loaded. The most recent three are downloaded via the App Store the rest are actually disk images containing installers that you run manually. installers for Yosemite through to the latest macOS in your Applications folder.This uses Apple’s createinstallmedia command under the hood. several releases of DiskMaker X, a program I’ve used from the beginning (and even contributed to). ![]() Although I’ve fought with the new Disk Utility before, I used it for this as it’s what most everyone else is likely to use as well.
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