Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

mount_lfs(8) [netbsd man page]

MOUNT_LFS(8)						    BSD System Manager's Manual 					      MOUNT_LFS(8)

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) Ousterhout and Douglis, "Beating the I/O Bottleneck: A Case for Log-structured File Systems", Operating Systems Review, No. 1, Vol. 23, pp. 11-27, 1989, also available as Technical Report UCB/CSD 88/467. Rosenblum and Ousterhout, "The Design and Implementation of a Log-Structured File System", ACM SIGOPS Operating Systems Review, No. 5, Vol. 25, 1991. Seltzer, "File System Performance and Transaction Support", PhD Thesis, University of California, Berkeley, 1992, also available as Technical Report UCB/ERL M92. Seltzer, Bostic, McKusick and Staelin, "An Implementation of a Log-Structured File System for UNIX", Proc. of the Winter 1993 USENIX Conf., pp. 315-331, 1993. HISTORY
The mount_lfs function first appeared in 4.4BSD. BSD
March 31, 2005 BSD

Check Out this Related Man Page

MOUNT_ADOS(8)						    BSD System Manager's Manual 					     MOUNT_ADOS(8)

NAME
mount_ados -- mount an AmigaDOS file system SYNOPSIS
mount_ados [-o options] [-u uid] [-g gid] [-m mask] special node DESCRIPTION
The mount_ados command attaches the AmigaDOS filesystem residing on the device special to the global filesystem namespace at the location indicated by node. Both special and node are converted to absolute paths before use. This command is normally executed by mount(8) at boot time, but can be used by any user to mount an AmigaDOS file system on any directory that they own (provided, of course, that they have appro- priate access to the device that contains the file system). The options are as follows: -o options Use the specified mount options, as described in mount(8). -u uid Set the owner of the files in the file system to uid. The default owner is the owner of the directory on which the file system is being mounted. -g gid Set the group of the files in the file system to gid. The default group is the group of the directory on which the file system is being mounted. -m mask Specify the maximum file permissions for files in the file system. (For example, a mask of 755 specifies that, by default, the owner should have read, write, and execute permissions for files, but others should only have read and execute permissions. See chmod(1) for more information about octal file modes.) Only the nine low-order bits of mask are used. The default mask is taken from the directory on which the file system is being mounted. SEE ALSO
mount(2), unmount(2), fstab(5), mount(8) HISTORY
The mount_ados utility first appeared in NetBSD 1.0. BUGS
The 'ados' filesystem currently supports the Amiga fast file system. The 'ados' filesystem implementation currently is read-only. The mount_ados utility silently retries the mount read-only, as if the ro option were specified, when it encounters the [EROFS] error. BSD
April 7, 1994 BSD
Man Page