How umount device is busy?

Sometimes, when you run the umount command you may receive the “target is busy” or “device is busy” errors indicating that there is some process that is using the mounted filesystem or the remote file server is not responding for some reason.

How remove Mount Sshfs?

Unmounting a SSHFS connection is the same as for any other volume. Open the File Browser (Nautilus). In the Places panel on the left click the arrow next to the SSHFS mount you want to disconnect or right-click it and select “Unmount”.

What does unmount mean on Mac?

(1) To disconnect a disk drive or optical disc from a computer. When a user selects “eject” to evacuate an optical disc from the computer, the operating system unmounts the medium.

What does umount command do?

The umount command unmounts a previously mounted device, directory, file, or file system. Processing on the file system, directory, or file completes and it is unmounted. Members of the system group and users operating with root user authority can issue any umount command.

Can you umount root?

Normally you cannot just unmount the real root filesystem; if you could do that, you would end up with a situation where you have no way to open any files (and no existing files open, because having any files open in the old root filesystem would prevent its unmounting).


NFS is, or can be, a SAN – so you have an issue with definitions. Certainly a 1Gbps NFS storage solution used over a network shared with other traffic is likely to be slower than a dedicated 10/40/100Gbps FCoE network, but then again you can run NFS at those speeds and over a dedicated network.

What is macFUSE?

macFUSE is a piece of software that allows macOS to access non-Mac file systems, like NTFS. It’s used by virtualization tools and some cloud storage utilities. If you’ve ever used any of those, you may have macFUSE installed on your Mac, and you may want to uninstall it.

What does mounted unmounted mean?

Mounted: the card is integrated to your computer, phone or whatever and ready to use. Unmounted: the card isn’t integrated and can safely be removed, without causing damage.

How to unmount device if umount returns 0 or 1?

Assuming that your umount returns 1 when device isn’t mounted, you can do it like that: Then bash will assume no error if umount returns 0 or 1 (i.e. unmounts successfully or device isn’t mounted) but will stop the script if any other code is returned (e.g. you have no permissions to unmount the device).

What is the difference between Mount and umount in Linux?

then mount looks for a corresponding mountpoint (and then, if not found, for a corresponding device) entry in the /etc/fstab file, and attempts to mount it. The umount command detaches the specified file system (s) from the file hierarchy. A file system is specified by giving the directory where it was mounted.

How to ignore the return code in umount command?

The standard trick to ignore the return code is to wrap the command in a boolean expression that always evaluates to success: Show activity on this post. Assuming that your umount returns 1 when device isn’t mounted, you can do it like that:

Why is the umount command abbreviated as umount?

(I thought I remembered a umount man page that listed the spelling as a bug of unknown origin, but I can’t find it now.) It seems there’s been some mis-information sitting here for a while now. The most likely reason for the umount command having the abbreviated name is because it follows from the name of the system call which it uses: umount ().

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