NAME
mount_lfs
- mount a log-structured file system
SYNOPSIS
mount_lfs
[-bdins]
[-N nsegs]
[-o options]
special
node
DESCRIPTION
The
mount_lfs
command attaches a log-structured file system
special
device on to the file system tree at the point
node.
Both
special
and
node
are converted to absolute paths before use.
In addition, the
lfs_cleanerd(8)
utility is invoked to clean the file system periodically.
This command is normally executed by
mount(8)
at boot time.
The options are as follows:
- -b
-
Instruct the cleaner to count bytes written, rather than segments read,
to determine how many segments to clean at once.
- -d
-
Run
lfs_cleanerd(8)
in debug mode.
- -i
-
Instruct the cleaner to use filesystem idle time as the criterion
for aggressive cleaning, instead of system load.
- -o
-
Options are specified with a
-o
flag followed by a comma separated string of options.
See the
mount(8)
man page for possible options and their meanings.
- -N nsegs
-
Clean
nsegs
segments (or bytes' worth of segments if
-b
is also specified) at a time.
- -n
-
Don't start
lfs_cleanerd(8)
on the file system.
- -s
-
Cause
lfs_cleanerd(8)
to read data in small chunks when cleaning the file system.
SEE ALSO
mount(2),
unmount(2),
fstab(5),
dump_lfs(8),
lfs_cleanerd(8),
mount(8),
newfs_lfs(8)
HISTORY
The
mount_lfs
function first appeared in
4.4BSD.