1.\" $NetBSD: fsck.8,v 1.17 1996/11/09 18:43:22 perry Exp $ 2.\" 3.\" Copyright (c) 1996 Christos Zoulas. All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 3. All advertising materials mentioning features or use of this software 14.\" must display the following acknowledgement: 15.\" This product includes software developed by Christos Zoulas. 16.\" 4. The name of the author may not be used to endorse or promote products 17.\" derived from this software without specific prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29.\" 30.Dd September 23, 1996 31.Dt FSCK 8 32.Os NetBSD 1 33.Sh NAME 34.Nm fsck 35.Nd file system consistency check and interactive repair 36.Sh SYNOPSIS 37.Nm 38.Op Fl dvplfyn 39.Op Fl l Ar maxparallel 40.Op Fl t Ar fstype 41.Op Fl T Ar fstype:fsoptions 42.Op special | node ... 43.Sh DESCRIPTION 44The 45.Nm 46command invokes filesystem-specific programs to check 47the special devices listed in the 48.Xr fstab 5 49file or in the command line for consistency. 50.Pp 51It is normally used in the script 52.Pa /etc/rc 53during automatic reboot. 54If no filesystems are specified, and ``preen'' mode is enabled ( 55.Fl p 56option) 57.Nm 58reads the table 59.Pa /etc/fstab 60to determine which filesystems to check. 61Only partitions in fstab that are mounted ``rw,'' ``rq'' or ``ro'' 62and that have non-zero pass number are checked. 63Filesystems with pass number 1 (normally just the root filesystem) 64are checked one at a time. 65When pass 1 completes, all remaining filesystems are checked, 66running one process per disk drive. 67The disk drive containing each filesystem is inferred from the longest prefix 68of the device name that ends in a digit; the remaining characters are assumed 69to be the partition designator. 70.Pp 71The options are as follows: 72.Bl -tag -width indent 73.It Fl d 74Debugging mode. Just print the commands without executing them. Available 75only if 76.Nm 77is compiled to support it. 78.It Fl f 79Force checking of filesystems, even when they are marked clean (for filesystems 80that support this). 81.It Fl l Ar maxparallel 82Limit the number of parallel checks to the number specified in 83the following argument. By default, the limit is the number of 84disks, running one process per disk. If a smaller limit is giv- 85en, the disks are checked round-robin, one filesystem at a time. 86.It Fl n 87Causes 88.Nm 89to assume no as the answer to all operator questions, except "CONTINUE?". 90.It Fl p 91Enter preen mode. 92.It Fl t Ar fstype 93Invoke 94.Nm 95only for the comma separated list of filesystem types. If the 96list starts with 97.Dq no 98then invoke 99.Nm 100for the filesystem types that are not specified in the list. 101.It Fl v 102Print the commands before executing them. 103.It Fl y 104Causes 105.Nm 106to assume yes 107as the answer to all operator questions. 108.It Fl T Ar fstype:fsoptions 109List of comma separated file system specific options for the specified 110file system type, in the same format as 111.Xr mount 8 . 112.Sh FILES 113.Bl -tag -width /etc/fstab -compact 114.It Pa /etc/fstab 115file system table 116.El 117.Sh SEE ALSO 118.Xr mount 8 , 119.Xr fstab 5 , 120.Xr fsck_msdos 8 , 121.Xr fsck_ffs 8 122