You have double-clicked on a disk image, and macOS refuses. Here is what you can do to get that image to mount, even when it’s damaged.
Category Archive: Macs
Robust example Swift code for checking the free space available on a volume. A good quick check to run before trying to write out anything hefty.
Have you used an online update service in the past? After last week’s security breach at MacUpdate, now is the time to stop. For your own protection.
Several Mac users have contacted me to report apparent contradictions between different estimates of free space remaining on […]
Did you download and install any Mac software from the MacUpdate site on the first or second of […]
We can quantitate the risks of cracking conventional passwords. AI-based systems using biometrics are known to be brittle, and to have exploitable blind spots. Can we trust them in security systems?
For no apparent reason, Sierra has again downloaded and installed an old ‘security’ update from 2016. Not only that, but it does its utmost to prevent you from finding out, even when studying the log. At least 5 bugs!
The File menu has been tidied, and xattred can now save the one xattr selected or all of them to a text file.
Do you trust the file size given in Finder’s Get Info dialog? Perhaps you shouldn’t, as it only consider part of the file, its data fork.
Scripts and apps which could look at folders in iCloud should watch for stub files. Here’s how they work, and why they can mislead.
