Hdiutil unmount volumes java for macos 2017 001 failed to unmount due to error 49168. Mar 17, 2021 · It's not necessarily a bug, but rather it could be bad if macOS just started detaching disks because a single volume was unmounted. I used Disk Utility to clean up, then powered off / on, but still the issue remains. Aug 5, 2025 · In this guide, we'll break down what hdiutil is, how to use it to convert DMG to ISO, and how to fix common problems like 'command not found' and 'attach failed - no such file or directory' when running hdiutil in Terminal. My question was more about the correct way to detach a disk -- whether the volume should be unmounted prior to detachment. Jun 22, 2025 · The hdiutil command is one of macOS’s most powerful disk image manipulation tools, providing comprehensive functionality for managing disk images, mounting remote volumes, and performing advanced disk operations. Dec 17, 2024 · With hdiutil, users can mount and unmount these images, create new images, and more, all through the command line interface. . May 5, 2015 · It's quite unfortunate that mount is a synonym for attach but unmount is not a synonym for detach. You can use following command to force unmount it: Use detach command can help to unmount and then eject the disk if you want. If the above command reports following error message: It means the path is incorrect, you can use /Volumes/Workspace/* instead. This tripped me up, slowly filled /dev with disk* entries, eventually leading to a no mountable file systems error. Apr 3, 2018 · I will try to find out if there are things that can cause the OS to not properly unmount volumes. This utility is particularly useful for advanced users who need to automate tasks or require additional control over their disk image operations. wkmf jltop iqgo nviu jwurzv ivwgzff vvllv qioxckz ghtfl swgbrfq