Cannot get Teensy_loader for MacOS 10.10 - teensy.dmg "no mountable file system"
I've been tr.ying to get the teensy_loader program installed on my old iMac, that is running MacOS 10.10.5.
After downloading the teensy.dmg file from https://www.pjrc.com/teensy/loader_mac.html, attempts to mount the disk image fail, with the message "no mountable file system".
I investigated this error message; the most useful information I found was at:
https://deciphertools.com/blog/2017-10-02-no-mountable-file-systems/, scroll down to item 4. Evidently Apple has come up with a new .dmg format that is incompatible with MacOS 10.12 and earlier. I've attempted to open the .dmg from the command line (terminal window), with no success.
I had a friend with a recent version of MacOS; he was able to open the .dmg with no problems, and run the loader without difficulty. I had him put the contents of the .dmg on Dropbox. When I fetched the files from Dropbox, there was no runnable .app file, as the files were viewed on my old iMac.
My old iMac is no longer upgradeable; I don't have the xcode or tools for building the command line version of the teensy loader.
Bottom line: I'm stuck. Has anyone else seen this problem, or found a workaround? Failing that, can the teensy loader be provided in an older format, compatible with MacOS 10.10?
Thanks for your attention!
Doug R.
I've been tr.ying to get the teensy_loader program installed on my old iMac, that is running MacOS 10.10.5.
After downloading the teensy.dmg file from https://www.pjrc.com/teensy/loader_mac.html, attempts to mount the disk image fail, with the message "no mountable file system".
I investigated this error message; the most useful information I found was at:
https://deciphertools.com/blog/2017-10-02-no-mountable-file-systems/, scroll down to item 4. Evidently Apple has come up with a new .dmg format that is incompatible with MacOS 10.12 and earlier. I've attempted to open the .dmg from the command line (terminal window), with no success.
I had a friend with a recent version of MacOS; he was able to open the .dmg with no problems, and run the loader without difficulty. I had him put the contents of the .dmg on Dropbox. When I fetched the files from Dropbox, there was no runnable .app file, as the files were viewed on my old iMac.
My old iMac is no longer upgradeable; I don't have the xcode or tools for building the command line version of the teensy loader.
Bottom line: I'm stuck. Has anyone else seen this problem, or found a workaround? Failing that, can the teensy loader be provided in an older format, compatible with MacOS 10.10?
Thanks for your attention!
Doug R.