Ultimate Guide: Force Unmount Drives in Linux Effortlessly

How do I force unmount a drive in Linux?

Linux fuser command to forcefully unmount a disk partition
  1. -K : Kill processes accessing the file.
  2. -M : Name specifies a file on a mounted file system or a block device that is mounted. In above example you are using /mnt.

How do I force umount home? 3 Answers. You can enter single user mode for such operations by adding ‘s’ to the end of grub boot line edit or run sudo init 1 . there you can umount /home, if again get errors run sudo umount -fl /home . -f force and -l disconnect in lazy!

To forcefully unmount a drive in Linux, you can use the fuser command with the -km options followed by the mount point, which will kill all processes accessing the file and unmount the disk partition. For example: sudo fuser -km /mnt. Additionally, for busy filesystems, you can identify and kill the busy process using lsof and pkill, and then unmount the drive.
How do I unmount a busy filesystem?

If possible, let us locate/identify the busy process, kill that process and then unmount the samba share/ drive to minimize damage:
  1. lsof | grep ‘<mountpoint of /dev/sda1>’ (or whatever the mounted device is)
  2. Pkill target_process (kills busy proc.
  3. Umount /dev/sda1 (or whatever the mounted device is)

What is the unmount command in Linux? 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.

How do I force unmount a drive in Linux? – Additional Questions

Why is umount not unmount?

The probable reason the “unmount” system call having the name umount() is because early linkers limited the length of external identifiers to as few as 6 characters (of just one case) on some types of systems (and it made sense to maintain compatibility with such tools at the time), and “umount” is a logical form of

How do you unmount a disk?

Unmount a disk member of a set
  1. In the Disk Utility app on your Mac, select the disk set that you want to unmount in the sidebar.
  2. Click the Unmount button in the toolbar or beside the disk set name.
  3. Disconnect the disk member that you want to unmount.

What is unmount?

to unfix from a backing or support; remove.

How do I mount and unmount a file in Linux?

On Linux and UNIX operating systems, you can use the mount command to attach (mount) file systems and removable devices such as USB flash drives at a particular mount point in the directory tree. The umount command detaches (unmounts) the mounted file system from the directory tree.

What is the meaning of unmounted?

Definition of unmounted

: Not mounted unmounted guns unmounted paintings especially: not mounted on or provided with a horse unmounted soldiers.

How do I unmount an ISO in Linux?

Once you are done with your work, you may need to unmount the ISO image. To do that, right-click on the newly created disk on the left pane. From the listed options, click on Unmount.

How do I unmount an ISO file?

To unmount the ISO file, right-click on the new drive (mounted ISO) and select “Eject” option from the context menu.

How do I unmount a device?

To unmount a mounted file system, use the umount command. Note that there is no “n” between the “u” and the “m”—the command is umount and not “unmount.” You must tell umount which file system you are unmounting. Do so by providing the file system’s mount point.

How do you unmount CIFS?

To force unmount a CIFS share in Linux, do the following.
  1. Open your favorite terminal app.
  2. Type the following command: sudo umount -a -t cifs -l , then supply your password.
  3. If the sudo command is not available in your environment, switch to root with the su command, and then issue the command umount -a -t cifs -l.

How do I unmount a shared file?

To successfully unmount a share, you must own the mount point on which the share is mounted.
  1. Determine the mount point of the share that you want to unmount.
  2. Unmount the share by specifying the name of the mount point, /mnt or /files in the previous step.

How check CIFS mount Linux?

How to View the List of Mounted CIFS Shares
  1. Use the mount command.
  2. Use the df -k -F smbfs command.

What is CIFS used for?

Common Internet File System (CIFS) is a network filesystem protocol used for providing shared access to files and printers between machines on the network. A CIFS client application can read, write, edit and even remove files on the remote server.

Which is better CIFS or SMB?

Data storage size is also more compared to CIFS Protocol. SMB is a high-level application network protocol, while CIFS is a TCP/IP Protocol. CIFS was considered as a “chatty protocol” that was a huge bug and had network issues. SMB has overcome it by a pipelining mechanism.

Which is better SMB or NFS?

In random read, NFS and SMB fare equally with plain text. However, NFS is better with encryption. In the case of random writing, NFS is better than SMB in both plain text and encryption. If you use rsync for file transfer, NFS is a better choice in plain text and encryption.

Is NFS faster than CIFS?

The communication speed of CIFS is moderate than NFS. NFS offers a high communication speed. It has a complicated configuration, and very difficult to diagnose any faults. It is a simple and easy installation.

Is SMB faster than FTP?

FTP is extremely fast and efficient compared to SMB when transferring large files. It can be difficult when it comes to small files, but overall, the speed of the FTP file transferring protocol is better.


NFS (Network File System) is a protocol that is used to serve and share files on a network. Similar protocols include SMB (Server Message Block) and AFP (Apple Filing Protocol). In short, a NAS system can use the NFS protocol to perform its task. However, a NFS is not a NAS.