I performed an erase and install of macOS High Sierra 10.13.1 on a Mid 2015 Retina MBP, from Internet Recovery. No migration or anything like that, installed work apps (AnyConnect, Office 2016 from the Macadmins portal) and then enrolled into our MDM (not Jamf).
I downloaded WebEx and Parallels from their respective sites, and when mounting the DMGs a popup stated 'no mountable file system'. I tried with High Sierra form the App Store and got the message: 'This copy of the Install macOS High Sierra application is damaged, and can‘t be used to install macOS.' I removed the InstallInfo.plist and while it mounted it errored out and did not complete the install.
I was able to re-apply the 10.13.1 installer via Internet Recovery but this did not resolve the issue.
Any other experiences with this? possible issue with system hardware/firmware?
