Just to make things clear. A .dmg file is a disk image and treated on Mac like a real disk. The DMG file comes in different formats: HFS, HFS+, UFS, ProDOS, Linux, and Fat32 and so may also require special mounting software to account for the format. So DMG doesn't mean HFS.
The proof the Philipp case. The file command clearly tells that the type is "bzip2 compressed data" . You just have to uncompress the dmg file with bzip2 then mount the resulting file which is of type hfsplus in this case. $ bunzip2 javafx_sdk-1_0-macosx-universal.dmg $ sudo mount -t hfsplus ./javafx_sdk-1_0-macosx-universal.dmg.out /mnt -o loop $ ls /mnt javafx_sdk-1_0.mpkg VoilĂ . I'm closing this report because there is no obvious bug here until someone can provide a valid hfs archive to test with. Don't hesitate to submit any new bug. ** Changed in: linux (Ubuntu) Status: Incomplete => Invalid -- Can't mount hfs CD-ROM https://bugs.launchpad.net/bugs/144481 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs