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.\" ========================================================================
.\"
.IX Title "guestmount 1"
.TH guestmount 1 "2012-06-01" "libguestfs-1.18.1" "Virtualization Support"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "名前"
.IX Header "名前"
guestmount \- Mount a guest filesystem on the host using \s-1FUSE\s0 and libguestfs
.SH "書式"
.IX Header "書式"
.Vb 1
\& guestmount [\-\-options] \-a disk.img \-m device [\-\-ro] mountpoint
\&
\& guestmount [\-\-options] \-a disk.img \-i [\-\-ro] mountpoint
\&
\& guestmount [\-\-options] \-d Guest \-i [\-\-ro] mountpoint
.Ve
.SH "警告"
.IX Header "警告"
You must \fInot\fR use \f(CW\*(C`guestmount\*(C'\fR in read-write mode on live virtual
machines.  If you do this, you risk disk corruption in the \s-1VM\s0.
.SH "説明"
.IX Header "説明"
The guestmount program can be used to mount virtual machine filesystems and
other disk images on the host.  It uses libguestfs for access to the guest
filesystem, and \s-1FUSE\s0 (the \*(L"filesystem in userspace\*(R") to make it appear as a
mountable device.
.PP
Along with other options, you have to give at least one device (\fI\-a\fR
option) or libvirt domain (\fI\-d\fR option), and at least one mountpoint (\fI\-m\fR
option) or use the \fI\-i\fR inspection option or the \fI\-\-live\fR option.  How
this works is better explained in the \fIguestfish\fR\|(1) manual page, or by
looking at the examples below.
.PP
\&\s-1FUSE\s0 lets you mount filesystems as non-root.  The mountpoint must be owned
by you, and the filesystem will not be visible to any other users unless you
make certain global configuration changes to \f(CW\*(C`/etc/fuse.conf\*(C'\fR.  To unmount
the filesystem, use the \f(CW\*(C`fusermount \-u\*(C'\fR command.
.SH "例"
.IX Header "例"
For a typical Windows guest which has its main filesystem on the first
partition:
.PP
.Vb 1
\& guestmount \-a windows.img \-m /dev/sda1 \-\-ro /mnt
.Ve
.PP
For a typical Linux guest which has a /boot filesystem on the first
partition, and the root filesystem on a logical volume:
.PP
.Vb 1
\& guestmount \-a linux.img \-m /dev/VG/LV \-m /dev/sda1:/boot \-\-ro /mnt
.Ve
.PP
To get libguestfs to detect guest mountpoints for you:
.PP
.Vb 1
\& guestmount \-a guest.img \-i \-\-ro /mnt
.Ve
.PP
For a libvirt guest called \*(L"Guest\*(R" you could do:
.PP
.Vb 1
\& guestmount \-d Guest \-i \-\-ro /mnt
.Ve
.PP
If you don't know what filesystems are contained in a guest or disk image,
use \fIvirt\-filesystems\fR\|(1) first:
.PP
.Vb 1
\& virt\-filesystems \-d MyGuest
.Ve
.PP
If you want to trace the libguestfs calls but without excessive debugging
information, we recommend:
.PP
.Vb 1
\& guestmount [...] \-\-trace /mnt
.Ve
.PP
If you want to debug the program, we recommend:
.PP
.Vb 1
\& guestmount [...] \-\-trace \-\-verbose /mnt
.Ve
.SH "注記"
.IX Header "注記"
.SS "Other users cannot see the filesystem by default"
.IX Subsection "Other users cannot see the filesystem by default"
If you mount a filesystem as one user (eg. root), then other users will not
be able to see it by default.  The fix is to add the \s-1FUSE\s0 \f(CW\*(C`allow_other\*(C'\fR
option when mounting:
.PP
.Vb 1
\& sudo guestmount [...] \-o allow_other /mnt
.Ve
.SS "Enabling \s-1FUSE\s0"
.IX Subsection "Enabling FUSE"
On some distros, you may need to add yourself to a special group
(eg. \f(CW\*(C`fuse\*(C'\fR) before you can use any \s-1FUSE\s0 filesystem.  This is necessary on
Debian and derivatives.
.PP
On other distros, no special group is required.  It is not necessary on
Fedora or Red Hat Enterprise Linux.
.SH "オプション"
.IX Header "オプション"
.IP "\fB\-a image\fR" 4
.IX Item "-a image"
.PD 0
.IP "\fB\-\-add image\fR" 4
.IX Item "--add image"
.PD
ブロックデバイスまたは仮想マシンイメージを追加します。
.Sp
ディスクイメージの形式は自動検知されます。これを上書きして強制的に特定の形式を使用するには、\fI\-\-format=..\fR オプションを使用します。
.IP "\fB\-c \s-1URI\s0\fR" 4
.IX Item "-c URI"
.PD 0
.IP "\fB\-\-connect \s-1URI\s0\fR" 4
.IX Item "--connect URI"
.PD
When used in conjunction with the \fI\-d\fR option, this specifies the libvirt
\&\s-1URI\s0 to use.  The default is to use the default libvirt connection.
.IP "\fB\-d libvirt-domain\fR" 4
.IX Item "-d libvirt-domain"
.PD 0
.IP "\fB\-\-domain libvirt-domain\fR" 4
.IX Item "--domain libvirt-domain"
.PD
Add disks from the named libvirt domain.  If the \fI\-\-ro\fR option is also
used, then any libvirt domain can be used.  However in write mode, only
libvirt domains which are shut down can be named here.
.Sp
Domain UUIDs can be used instead of names.
.IP "\fB\-\-dir\-cache\-timeout N\fR" 4
.IX Item "--dir-cache-timeout N"
Set the readdir cache timeout to \fIN\fR seconds, the default being 60
seconds.  The readdir cache [actually, there are several semi-independent
caches] is populated after a \fIreaddir\fR\|(2) call with the stat and extended
attributes of the files in the directory, in anticipation that they will be
requested soon after.
.Sp
There is also a different attribute cache implemented by \s-1FUSE\s0 (see the \s-1FUSE\s0
option \fI\-o attr_timeout\fR), but the \s-1FUSE\s0 cache does not anticipate future
requests, only cache existing ones.
.IP "\fB\-\-echo\-keys\fR" 4
.IX Item "--echo-keys"
When prompting for keys and passphrases, guestfish normally turns echoing
off so you cannot see what you are typing.  If you are not worried about
Tempest attacks and there is no one else in the room you can specify this
flag to see what you are typing.
.IP "\fB\-\-format=raw|qcow2|..\fR" 4
.IX Item "--format=raw|qcow2|.."
.PD 0
.IP "\fB\-\-format\fR" 4
.IX Item "--format"
.PD
\&\fI\-a\fR オプションのデフォルトはディスクイメージの形式を自動検知します。これを使用することにより、\fI\-a\fR
オプションのディスク形式をコマンドラインにおいて指定したものに強制できます。引数なしで \fI\-\-format\fR を使用することにより、後続の \fI\-a\fR
オプションに対して自動検知に戻せます。
.Sp
If you have untrusted raw-format guest disk images, you should use this
option to specify the disk format.  This avoids a possible security problem
with malicious guests (\s-1CVE\-2010\-3851\s0).  See also
\&\*(L"guestfs_add_drive_opts\*(R" in \fIguestfs\fR\|(3).
.IP "\fB\-\-fuse\-help\fR" 4
.IX Item "--fuse-help"
Display help on special \s-1FUSE\s0 options (see \fI\-o\fR below).
.IP "\fB\-\-help\fR" 4
.IX Item "--help"
簡単なヘルプを表示して終了します。
.IP "\fB\-i\fR" 4
.IX Item "-i"
.PD 0
.IP "\fB\-\-inspector\fR" 4
.IX Item "--inspector"
.PD
Using \fIvirt\-inspector\fR\|(1) code, inspect the disks looking for an operating
system and mount filesystems as they would be mounted on the real virtual
machine.
.IP "\fB\-\-keys\-from\-stdin\fR" 4
.IX Item "--keys-from-stdin"
Read key or passphrase parameters from stdin.  The default is to try to read
passphrases from the user by opening \f(CW\*(C`/dev/tty\*(C'\fR.
.IP "\fB\-\-live\fR" 4
.IX Item "--live"
Connect to a live virtual machine.  (Experimental, see
\&\*(L"\s-1ATTACHING\s0 \s-1TO\s0 \s-1RUNNING\s0 \s-1DAEMONS\s0\*(R" in \fIguestfs\fR\|(3)).
.IP "\fB\-m dev[:mountpoint[:options]]\fR" 4
.IX Item "-m dev[:mountpoint[:options]]"
.PD 0
.IP "\fB\-\-mount dev[:mountpoint[:options]]\fR" 4
.IX Item "--mount dev[:mountpoint[:options]]"
.PD
Mount the named partition or logical volume on the given mountpoint \fBin the
guest\fR (this has nothing to do with mountpoints in the host).
.Sp
If the mountpoint is omitted, it defaults to \f(CW\*(C`/\*(C'\fR.  You have to mount
something on \f(CW\*(C`/\*(C'\fR.
.Sp
The third (and rarely used) part of the mount parameter is the list of mount
options used to mount the underlying filesystem.  If this is not given, then
the mount options are either the empty string or \f(CW\*(C`ro\*(C'\fR (the latter if the
\&\fI\-\-ro\fR flag is used).  By specifying the mount options, you override this
default choice.  Probably the only time you would use this is to enable ACLs
and/or extended attributes if the filesystem can support them:
.Sp
.Vb 1
\& \-m /dev/sda1:/:acl,user_xattr
.Ve
.IP "\fB\-n\fR" 4
.IX Item "-n"
.PD 0
.IP "\fB\-\-no\-sync\fR" 4
.IX Item "--no-sync"
.PD
By default, we attempt to sync the guest disk when the \s-1FUSE\s0 mountpoint is
unmounted.  If you specify this option, then we don't attempt to sync the
disk.  See the discussion of autosync in the \fIguestfs\fR\|(3) manpage.
.IP "\fB\-o option\fR" 4
.IX Item "-o option"
.PD 0
.IP "\fB\-\-option option\fR" 4
.IX Item "--option option"
.PD
追加オプションを \s-1FUSE\s0 に渡します。
.Sp
To get a list of all the extra options supported by \s-1FUSE\s0, use the command
below.  Note that only the \s-1FUSE\s0 \fI\-o\fR options can be passed, and only some
of them are a good idea.
.Sp
.Vb 1
\& guestmount \-\-fuse\-help
.Ve
.Sp
Some potentially useful \s-1FUSE\s0 options:
.RS 4
.IP "\fB\-o allow_other\fR" 4
.IX Item "-o allow_other"
Allow other users to see the filesystem.
.IP "\fB\-o attr_timeout=N\fR" 4
.IX Item "-o attr_timeout=N"
Enable attribute caching by \s-1FUSE\s0, and set the timeout to \fIN\fR seconds.
.IP "\fB\-o kernel_cache\fR" 4
.IX Item "-o kernel_cache"
Allow the kernel to cache files (reduces the number of reads that have to go
through the \fIguestfs\fR\|(3) \s-1API\s0).  This is generally a good idea if you can
afford the extra memory usage.
.IP "\fB\-o uid=N\fR \fB\-o gid=N\fR" 4
.IX Item "-o uid=N -o gid=N"
Use these options to map all UIDs and GIDs inside the guest filesystem to
the chosen values.
.RE
.RS 4
.RE
.IP "\fB\-r\fR" 4
.IX Item "-r"
.PD 0
.IP "\fB\-\-ro\fR" 4
.IX Item "--ro"
.PD
Add devices and mount everything read-only.  Also disallow writes and make
the disk appear read-only to \s-1FUSE\s0.
.Sp
This is highly recommended if you are not going to edit the guest disk.  If
the guest is running and this option is \fInot\fR supplied, then there is a
strong risk of disk corruption in the guest.  We try to prevent this from
happening, but it is not always possible.
.Sp
\&\*(L"\s-1OPENING\s0 \s-1DISKS\s0 \s-1FOR\s0 \s-1READ\s0 \s-1AND\s0 \s-1WRITE\s0\*(R" in \fIguestfish\fR\|(1) 参照。
.IP "\fB\-\-selinux\fR" 4
.IX Item "--selinux"
仮想マシンの SELinux サポートを有効にします。
.IP "\fB\-v\fR" 4
.IX Item "-v"
.PD 0
.IP "\fB\-\-verbose\fR" 4
.IX Item "--verbose"
.PD
libguestfs からの冗長なメッセージを有効にします。
.IP "\fB\-V\fR" 4
.IX Item "-V"
.PD 0
.IP "\fB\-\-version\fR" 4
.IX Item "--version"
.PD
プログラムのバージョンを表示して、終了します。
.IP "\fB\-w\fR" 4
.IX Item "-w"
.PD 0
.IP "\fB\-\-rw\fR" 4
.IX Item "--rw"
.PD
This changes the \fI\-a\fR, \fI\-d\fR and \fI\-m\fR options so that disks are added and
mounts are done read-write.
.Sp
\&\*(L"\s-1OPENING\s0 \s-1DISKS\s0 \s-1FOR\s0 \s-1READ\s0 \s-1AND\s0 \s-1WRITE\s0\*(R" in \fIguestfish\fR\|(1) 参照。
.IP "\fB\-x\fR" 4
.IX Item "-x"
.PD 0
.IP "\fB\-\-trace\fR" 4
.IX Item "--trace"
.PD
Trace libguestfs calls and entry into each \s-1FUSE\s0 function.
.Sp
This also stops the daemon from forking into the background.
.SH "ファイル"
.IX Header "ファイル"
.ie n .IP "$HOME/.libguestfs\-tools.rc" 4
.el .IP "\f(CW$HOME\fR/.libguestfs\-tools.rc" 4
.IX Item "$HOME/.libguestfs-tools.rc"
.PD 0
.IP "/etc/libguestfs\-tools.conf" 4
.IX Item "/etc/libguestfs-tools.conf"
.PD
This configuration file controls the default read-only or read-write mode
(\fI\-\-ro\fR or \fI\-\-rw\fR).
.Sp
\&\*(L"\s-1OPENING\s0 \s-1DISKS\s0 \s-1FOR\s0 \s-1READ\s0 \s-1AND\s0 \s-1WRITE\s0\*(R" in \fIguestfish\fR\|(1) 参照。
.SH "終了ステータス"
.IX Header "終了ステータス"
このプログラムは、成功すると 0 を、エラーがあると 0 以外を返します。
.SH "関連項目"
.IX Header "関連項目"
\&\fIguestfish\fR\|(1), \fIvirt\-inspector\fR\|(1), \fIvirt\-cat\fR\|(1), \fIvirt\-edit\fR\|(1),
\&\fIvirt\-tar\fR\|(1), \fIguestfs\fR\|(3), <http://libguestfs.org/>,
<http://fuse.sf.net/>.
.SH "著者"
.IX Header "著者"
Richard W.M. Jones (\f(CW\*(C`rjones at redhat dot com\*(C'\fR)
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (C) 2009\-2012 Red Hat Inc.  <http://libguestfs.org/>
.PP
This program is free software; you can redistribute it and/or modify it
under the terms of the \s-1GNU\s0 General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your option)
any later version.
.PP
This program is distributed in the hope that it will be useful, but \s-1WITHOUT\s0
\&\s-1ANY\s0 \s-1WARRANTY\s0; without even the implied warranty of \s-1MERCHANTABILITY\s0 or
\&\s-1FITNESS\s0 \s-1FOR\s0 A \s-1PARTICULAR\s0 \s-1PURPOSE\s0.  See the \s-1GNU\s0 General Public License for
more details.
.PP
You should have received a copy of the \s-1GNU\s0 General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 51
Franklin Street, Fifth Floor, Boston, \s-1MA\s0 02110\-1301 \s-1USA\s0.