mountコマンドを使うと、ディスク装置等のデバイスをLinuxのファイルシステムに組み込むことができます。mountコマンドの使い方やオプションをご紹介します。
mount [-l|-h|-V]mount [-fnrsvw] [-t fstype] [-o options] device dirオプションを指定せずに mount コマンドを実行すると、現在マウントされているファイルシステムの一覧が表示される。
$ mount
rootfs on / type wslfs (rw,noatime)
none on /dev type tmpfs (rw,noatime,mode=755)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,noatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,noatime)
devpts on /dev/pts type devpts (rw,nosuid,noexec,noatime,gid=5,mode=620)
none on /run type tmpfs (rw,nosuid,noexec,noatime,mode=755)
none on /run/lock type tmpfs (rw,nosuid,nodev,noexec,noatime)
none on /run/shm type tmpfs (rw,nosuid,nodev,noatime)
none on /run/user type tmpfs (rw,nosuid,nodev,noexec,noatime,mode=755)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,relatime)
tmpfs on /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,relatime,mode=755)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
C:\ on /windir/c type drvfs (rw,noatime,uid=1000,gid=1000,umask=22,fmask=11,metadata,case=off)$ mount -h
Usage:
mount [-lhV]
mount -a [options]
mount [options] [--source] <source> | [--target] <directory>
mount [options] <source> <directory>
mount <operation> <mountpoint> [<target>]
Mount a filesystem.
Options:
-a, --all mount all filesystems mentioned in fstab
-c, --no-canonicalize don't canonicalize paths
-f, --fake dry run; skip the mount(2) syscall
-F, --fork fork off for each device (use with -a)
-T, --fstab <path> alternative file to /etc/fstab
-i, --internal-only don't call the mount.<type> helpers
-l, --show-labels show also filesystem labels
-n, --no-mtab don't write to /etc/mtab
--options-mode <mode>
what to do with options loaded from fstab
--options-source <source>
mount options source
--options-source-force
force use of options from fstab/mtab
-o, --options <list> comma-separated list of mount options
-O, --test-opts <list> limit the set of filesystems (use with -a)
-r, --read-only mount the filesystem read-only (same as -o ro)
-t, --types <list> limit the set of filesystem types
--source <src> explicitly specifies source (path, label, uuid)
--target <target> explicitly specifies mountpoint
-v, --verbose say what is being done
-w, --rw, --read-write mount the filesystem read-write (default)
-N, --namespace <ns> perform mount in another namespace
-h, --help display this help
-V, --version display version
Source:
-L, --label <label> synonym for LABEL=<label>
-U, --uuid <uuid> synonym for UUID=<uuid>
LABEL=<label> specifies device by filesystem label
UUID=<uuid> specifies device by filesystem UUID
PARTLABEL=<label> specifies device by partition label
PARTUUID=<uuid> specifies device by partition UUID
<device> specifies device by path
<directory> mountpoint for bind mounts (see --bind/rbind)
<file> regular file for loopdev setup
Operations:
-B, --bind mount a subtree somewhere else (same as -o bind)
-M, --move move a subtree to some other place
-R, --rbind mount a subtree and all submounts somewhere else
--make-shared mark a subtree as shared
--make-slave mark a subtree as slave
--make-private mark a subtree as private
--make-unbindable mark a subtree as unbindable
--make-rshared recursively mark a whole subtree as shared
--make-rslave recursively mark a whole subtree as slave
--make-rprivate recursively mark a whole subtree as private
--make-runbindable recursively mark a whole subtree as unbindable
For more details see mount(8).| 値 | 説明 |
|---|---|
| ext2 | Second Extended File System |
| ext3 | Third Extended File System |
| ext4 | Fourth Extended File System |
| xfs | Extents File System |
| btrfs | B-tree File System |
| vfat | Virtual File Allocation Table |
| sysfs | 仮想ファイルシステム |
| proc | Process File System |
| nfs | Network File System |
| cifs | Common Internet File System |
| iso9660 | ISO 9660 (CD-ROM File System) |
CD-ROM をマウントする例を次に示す。
# mount -t iso9660 /dev/cdrom /media$ mount -V
mount from util-linux 2.34 (libmount 2.34.0)/etc/fstabに記述されているファイルシステムは(noautoオプションが無ければ)起動プロセスの途中でマウントされる。
/etc/fstabの設定例を示す。
192.168.1.10:/var/nfs/foo /mnt/foo nfs defaults 0 0