umount
umount is a Linux command in the Disk & Storage category, rated intermediate difficulty. Unmounts a mounted filesystem. The syntax is umount [options] mountpoint. Key options and parameters: mountpoint — filesystem to unmount. It returns none (filesystem unmounted). A practical example: umount /mnt/usb umount -l /mnt/usb # Lazy unmount (when busy) umount -f /mnt/usb # Force unmount A close relative is mount, which mounts a filesystem to make it accessible at a directory. A close relative is fdisk, which manages disk partition tables (create, delete, resize partitions). A close relative is blkid, which displays block device attributes (UUID, filesystem type, label). More about this category: Linux disk and storage commands — mount, umount, fdisk, lsblk, and more. Manage disks, partitions, and filesystems. Related Disk & Storage commands: mount, fdisk, blkid, dd, lsblk, parted, mkfs, fsck. This page is part of the free Linux Reference documentation covering 304+ commands, each with syntax, options, practical examples, and a difficulty rating.