resize_lfs(8) - NetBSD Manual Pages

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RESIZE_LFS(8)           NetBSD 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 indi-
     cates 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.

NetBSD 5.1                     September 4, 2006                    NetBSD 5.1