SMBMOUNT(8)SMBMOUNT(8)NAME
smbmount - mount an smbfs filesystem
SYNOPSIS
smbmount {service} {mount-point} [-o options]
DESCRIPTION
smbmount mounts a Linux SMB filesystem. It is usually invoked as
mount.smbfs by the mount(8) command when using the "-t smbfs" option.
This command only works in Linux, and the kernel must support the smbfs
filesystem.
Options to smbmount are specified as a comma-separated list of key=val‐
ue pairs. It is possible to send options other than those listed here,
assuming that smbfs supports them. If you get mount failures, check
your kernel log for errors on unknown options.
smbmount is a daemon. After mounting it keeps running until the mounted
smbfs is umounted. It will log things that happen when in daemon mode
using the "machine name" smbmount, so typically this output will end up
in log.smbmount. The smbmount process may also be called mount.smbfs.
Note
smbmount calls smbmnt(8) to do the actual mount. You must make
sure that smbmnt is in the path so that it can be found.
OPTIONS
username=<arg>
specifies the username to connect as. If this is not given, then
the environment variable USER is used. This option can also
take the form "user%password" or "user/workgroup" or "user/work‐
group%password" to allow the password and workgroup to be speci‐
fied as part of the username.
password=<arg>
specifies the SMB password. If this option is not given then the
environment variablePASSWD is used. If it can find no password
smbmount will prompt for a passeword, unless the guest option is
given.
Note that passwords which contain the argument delimiter charac‐
ter (i.e. a comma ',') will failed to be parsed correctly on the
command line. However, the same password defined in the PASSWD
environment variable or a credentials file (see below) will be
read correctly.
credentials=<filename>
specifies a file that contains a username and/or password. The
format of the file is:
username = <value>
password = <value>
This is preferred over having passwords in plaintext in a shared
file, such as /etc/fstab. Be sure to protect any credentials
file properly.
krb Use kerberos (Active Directory).
netbiosname=<arg>
sets the source NetBIOS name. It defaults to the local hostname.
uid=<arg>
sets the uid that will own all files on the mounted filesystem.
It may be specified as either a username or a numeric uid.
gid=<arg>
sets the gid that will own all files on the mounted filesystem.
It may be specified as either a groupname or a numeric gid.
port=<arg>
sets the remote SMB port number. The default is 445, fallback is
139.
fmask=<arg>
sets the file mask. This determines the permissions that remote
files have in the local filesystem. This is not a umask, but the
actual permissions for the files. The default is based on the
current umask.
dmask=<arg>
Sets the directory mask. This determines the permissions that
remote directories have in the local filesystem. This is not a
umask, but the actual permissions for the directories. The de‐
fault is based on the current umask.
debug=<arg>
Sets the debug level. This is useful for tracking down SMB con‐
nection problems. A suggested value to start with is 4. If set
too high there will be a lot of output, possibly hiding the use‐
ful output.
ip=<arg>
Sets the destination host or IP address.
workgroup=<arg>
Sets the workgroup on the destination
sockopt=<arg>
Sets the TCP socket options. See the smb.conf(5) socket options
option.
scope=<arg>
Sets the NetBIOS scope
guest Don't prompt for a password
ro mount read-only
rw mount read-write
iocharset=<arg>
sets the charset used by the Linux side for codepage to charset
translations (NLS). Argument should be the name of a charset,
like iso8859-1. (Note: only kernel 2.4.0 or later)
codepage=<arg>
sets the codepage the server uses. See the iocharset option. Ex‐
ample value cp850. (Note: only kernel 2.4.0 or later)
ttl=<arg>
sets how long a directory listing is cached in milliseconds (al‐
so affects visibility of file size and date changes). A higher
value means that changes on the server take longer to be noticed
but it can give better performance on large directories, espe‐
cially over long distances. Default is 1000ms but something like
10000ms (10 seconds) is probably more reasonable in many cases.
(Note: only kernel 2.4.2 or later)
ENVIRONMENT VARIABLES
The variable USER may contain the username of the person using the
client. This information is used only if the protocol level is high
enough to support session-level passwords. The variable can be used to
set both username and password by using the format username%password.
The variable PASSWD may contain the password of the person using the
client. This information is used only if the protocol level is high
enough to support session-level passwords.
The variable PASSWD_FILE may contain the pathname of a file to read the
password from. A single line of input is read and used as the password.
BUGS
Passwords and other options containing , can not be handled. For pass‐
words an alternative way of passing them is in a credentials file or in
the PASSWD environment.
The credentials file does not handle usernames or passwords with lead‐
ing space.
One smbfs bug is important enough to mention here, even if it is a bit
misplaced:
· Mounts sometimes stop working. This is usually caused by smbmount
terminating. Since smbfs needs smbmount to reconnect when the server
disconnects, the mount will eventually go dead. An umount/mount nor‐
mally fixes this. At least 2 ways to trigger this bug are known.
Note that the typical response to a bug report is suggestion to try the
latest version first. So please try doing that first, and always in‐
clude which versions you use of relevant software when reporting bugs
(minimum: samba, kernel, distribution)
SEE ALSO
Documentation/filesystems/smbfs.txt in the linux kernel source tree may
contain additional options and information.
FreeBSD also has a smbfs, but it is not related to smbmount
For Solaris, HP-UX and others you may want to look at smbsh(1) or at
other solutions, such as Sharity or perhaps replacing the SMB server
with a NFS server.
AUTHOR
Volker Lendecke, Andrew Tridgell, Michael H. Warfield and others.
The current maintainer of smbfs and the userspace tools smbmount, smbu‐
mount, and smbmnt is Urban Widmark. The SAMBA Mailing list is the pre‐
ferred place to ask questions regarding these programs.
The conversion of this manpage for Samba 2.2 was performed by Gerald
Carter. The conversion to DocBook XML 4.2 for Samba 3.0 was done by
Alexander Bokovoy.
SMBMOUNT(8)
