And what about trying to open while holding down Control key? as well, could you try opening it with hdiutil, as outlined here: https://deciphertools.com/blog/2017-10-02-no-mountable-file-systems/
As well, and here we are getting into weirdness, could it be that security settings differ per country/language, and there could be some blacklisting going on on US machines? From the same link: "I was able to resolve this problem by opening up my macOS Security & Privacy settings, navigating to General, and then clicking Allow on the app developer that was being blocked." ---------------- it could also be that out dmg building is using an outdated process, and something goes a bit wrong. \begin{flame} -- Of course you should contact Apple Tech Support, you're paying for it, aren't you? :-P \end{flame} Cheers Dima On Fri, Oct 19, 2018 at 2:05 PM Dima Pasechnik <dimp...@gmail.com> wrote: > > did you check md5sum of dmg? > > On Fri, 19 Oct 2018, 13:57 kcrisman, <kcris...@gmail.com> wrote: >> >> >>> maybe different security settings matter? >>> Have you copied the thing to Applications? >>> >> >> Can't copy anything if the dmg won't mount! Nothing I tried seemed to get >> around that :-( including moving the dmg various places, though it would >> have really surprised me if that had made a difference. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "sage-release" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to sage-release+unsubscr...@googlegroups.com. >> To post to this group, send email to sage-release@googlegroups.com. >> Visit this group at https://groups.google.com/group/sage-release. >> For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "sage-release" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-release+unsubscr...@googlegroups.com. To post to this group, send email to sage-release@googlegroups.com. Visit this group at https://groups.google.com/group/sage-release. For more options, visit https://groups.google.com/d/optout.