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Hello all, I have just upgraded a ASA5525-X for lab use, had it factory defaulted and then upgraded to the latest ASA 9.12.2 and ASDM 7.12.2. The only problem I get is that the disk image (.dmg) that is downloaded from the device has no valid filesys...
The solution was simple but really strange: When downloading the file to the newer versions of macOS where the disk is APFS then the file gets corrupted. I installed macOS 10.12 Sierra on a MacBook Pro and everything worked great on HFS+ file system....
