What will happen if we unmount SD card?
When you unmount it, the SD card disconnects from your device. If you don’t mount an SD card on your Android device, it won’t be readable by your device.
Is eject and unmount same?
You unmount a volume, and eject a drive. For optical drives you can unmount the volume but the disk will still remain in the drive. Ejecting it removes the disk. For hard drives, however, for the most part the terms are pretty much interchangeable.
Is there command to unmount SSHFS file system?
sshfs uses FUSE (File system in USErspace) instead of the regular mount with elevated permissions. That also means you can not use umount (the counterpart of mount) to unmount the file system though, but you have fusermount -u, the FUSE unmount command: fusermount -u /temp/user/harddrive. For more info, see e.g. man sshfs and man fusermount.
How to umount non-Sudo SSHFS created directory?
This answer refers to Ubuntu 20.04, but in general you need two steps to properly unmount a sshfs volume: i) kill the sshfs process and ii) use sudo to unmount. Without using sudo, the system reports messages like “Device or resource busy” or “Transport endpoint is not connected”, even if permissions are correct.
Is there a way to mount a network drive with sshfs?
If your problem is that you mounted a network drive with SSHFS, but the ssh connection got cut and you simply cannot remount it because of an error like mount_osxfuse: mount point /Users/your_user/mount_folder is itself on a OSXFUSE volume, the github user theunsa found a solution that works for me. Quoting his answer:
How to find the volume created by SSHFS?
One can also locate the volume created by sshfs in Finder, right-click, and select Eject. Which is, to the best of my knowledge, the GUI version of the above command. In my case (Mac OS Mojave), the key is to use the full path $umount -f /Volumnes/fullpath/folder