RESIZE_LFS(8) | System Manager's Manual | RESIZE_LFS(8)

# NAME

`resize_lfs` —
resize a mounted log-structured filesystem

# SYNOPSIS

`resize_lfs` | [`-v`] [`-s` new-size] mounted-file-system

# DESCRIPTION

`resize_lfs` grows or shrinks a mounted log-structured filesystem to the specified size. mounted-file-system is the name of the filesystem to be resized, and new-size is the desired new filesystem size, in sectors. If new-size is not specified, `resize_lfs` will default to the current size of the partition containing the filesystem in question.

When growing, the partition must be large enough to contain a filesystem of the specified size; when shrinking, `resize_lfs` must first “clean” the segments that will be invalid when the filesystem is shrunk. If this cleaning process results in these segments becoming redirtied, this indicates that the given new size is not large enough to contain the existing filesystem data, and `resize_lfs` will return an error.

# EXAMPLES

To resize the file system mounted at /home to 32576 sectors:
`resize_lfs -s 32576 /home`

# SEE ALSO

fsck_lfs(8), lfs_cleanerd(8), newfs_lfs(8)

# HISTORY

The `resize_lfs` command first appeared in NetBSD 3.0.

# AUTHORS

Konrad Schroder ⟨perseant@NetBSD.org⟩

# BUGS

`resize_lfs` should be able to resize an unmounted filesystem as well.

September 4, 2006 | NetBSD 10.0