no mountable file systems

asked 2021-02-09 22:15:52 +0100

aj gravatar image

updated 2021-03-25 13:13:07 +0100

FrédéricC gravatar image

Hi, I am trying to download Sage on my Mac running OS X EL Capitan (10.11.6), and every time I try to open the disk image I get the error "no mountable file systems." This has persisted when I download the app.dmg as well as the .dmg, restarting my computer, creating a new account on my computer, etc., as well as trying to open it in Terminal. Has anyone experienced this?

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Since macOS 10.11 is no longer getting any security updates, a more up-to-date OS is recommended.

If updating the operating system is not an option for some reason, I would try

or if that fails,

slelievre gravatar imageslelievre ( 2021-02-10 00:05:06 +0100 )edit