ubuntu实现自动挂载u盘

ubuntu实现自动挂载u盘

但是，有些设施可以在没有图形工具的情况下进行复制，并且在系统上占用的空间非常小。
例如，在我的设置中，我已经实现了USB自动挂载服务，而无需使用任何外部工具/服务，只有udev和systemd。

编写shell脚本

nano /usr/local/bin/usb-mount.sh

#!/bin/bash

ACTION=$1
DEVBASE=$2
DEVICE="/dev/${DEVBASE}"

# See if this drive is already mounted
MOUNT_POINT=$(/bin/mount | /bin/grep ${DEVICE} | /usr/bin/awk '{ print $3 }')

do_mount()
{
    if [[ -n ${MOUNT_POINT} ]]; then
        # Already mounted, exit
        exit 1
    fi
	
    # Get info for this drive: $ID_FS_LABEL, $ID_FS_UUID, and $ID_FS_TYPE
    eval $(/sbin/blkid -o udev ${DEVICE})

    # Figure out a mount point to use
    LABEL=${ID_FS_LABEL}
    if [[ -z "${LABEL}" ]]; then
        LABEL=${DEVBASE}
    elif /bin/grep -q " /media/${LABEL} " /etc/mtab; then
        # Already in use, make a unique one
        LABEL+="-${DEVBASE}"
    fi
    MOUNT_POINT="/media/${LABEL}"

    /bin/mkdir -p ${MOUNT_POINT}

    # Global mount options
    OPTS="rw,relatime"

    # File system type specific mount options
    if [[ ${ID_FS_TYPE} == "vfat" ]]; then
        OPTS+=",users,gid=100,umask=000,shortname=mixed,utf8=1,flush"
    fi

    if ! /bin/mount -o ${OPTS} ${DEVICE} ${MOUNT_POINT}; then
        # Error during mount process: cleanup mountpoint
        /bin/rmdir ${MOUNT_POINT}
        exit 1
    fi
	
}

do_unmount()
{
    if [[ -n ${MOUNT_POINT} ]]; then
        /bin/umount -l ${DEVICE}
    fi

    # Delete all empty dirs in /media that aren't being used as mount points. 
    for f in /media/* ; do
        if [[ -n $(/usr/bin/find "$f" -maxdepth 0 -type d -empty) ]]; then
            if ! /bin/grep -q " $f " /etc/mtab; then
                /bin/rmdir "$f"
            fi
        fi
    done
}
case "${ACTION}" in
    add)
        do_mount
        ;;
    remove)
        do_unmount
        ;;
esac

chmod 777 /usr/local/bin/usb-mount.sh

编写服务

nano /etc/systemd/system/[email protected]

[Unit]
Description=Mount USB Drive on %i

[Service]
Type=oneshot
RemainAfterExit=true
ExecStart=/usr/local/bin/usb-mount.sh add %i
ExecStop=/usr/local/bin/usb-mount.sh remove %i

（我们使用“@”文件名语法，以便我们可以将设备名称作为参数传递）

编写udev规则

nano /etc/udev/rules.d/99-local.rules

KERNEL=="sd[a-z][0-9]", SUBSYSTEMS=="usb", ACTION=="add", RUN+="/bin/systemctl start usb-mount@%k.service"
KERNEL=="sd[a-z][0-9]", SUBSYSTEMS=="usb", ACTION=="remove", RUN+="/bin/systemctl stop usb-mount@%k.service"
KERNEL=="sd[a-z]", SUBSYSTEMS=="usb", ACTION=="add", RUN+="/bin/systemctl start usb-mount@%k.service"
KERNEL=="sd[a-z]", SUBSYSTEMS=="usb", ACTION=="remove", RUN+="/bin/systemctl stop usb-mount@%k.service"

更新配置

udevadm control --reload-rules
systemctl daemon-reload