6/27/2023 0 Comments Mac will not open steam.dmgThe installer application ran successfully in Catalina. Back on the iMac, running Catalina, I used Command + Open to open the installer Application for Back Blaze, then answered the system security questions that yes, in fact, I did want to open that application. Once the installer disk image was mounted on my desktop, I copied the installer App from that disk image and pasted it into a new folder in my iCloud Drive (in use on both the MBPro and on the iMac running Catalina). To test if this was true, I returned to my MacBook Pro running macOS 10.14 Mojave, downloaded the BackBlaze installer dmg file and successfully opened it on that system. dmg files and when I tried to open them, got the now infamous error message: "filename.dmg" is damaged and can't be opened. I recently updated my 2013 27" iMac to macOS 10.15.2 Catalina, and found that I needed to update applications such as BackBlaze and TechTool Pro on my system.
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