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背景

tag-icon • tag-icon sshfs automount autofs
背景

我知道这个话题已经被讨论过很多次了，我几乎为自己还没有找到解决问题的方法而感到羞愧。显然有些事情我不太明白，如果能得到任何意见或指点，我将不胜感激。

背景

  • Linux 3.2.0-4-amd64 #1 SMP Debian 3.2.51-1 x86_64 GNU/Linux
  • 所有命令都以 root 身份运行，并且 ssh 密钥已复制到远程的 .ssh/authorized_keys
  • 使用 ssh-agent 解锁密钥
  • 正常的 sshfs cmd 工作正常 -sshfs USER@REMOTE:/ /mnt/ssh/backup
  • 将条目添加到 fstab 并执行“mount -a”按预期工作 -sshfs#USER@REMOTE:/ /mnt/ssh/backup/ fuse defaults 0 0


#:自动挂载-V

Linux automount version 5.0.7

Directories:
    config dir:     /etc/default
    maps dir:       /etc
    modules dir:    /usr/lib/x86_64-linux-gnu/autofs

Compile options:
  ENABLE_FORCED_SHUTDOWN ENABLE_IGNORE_BUSY_MOUNTS WITH_HESIOD 
  WITH_LDAP WITH_SASL LIBXML2_WORKAROUND


#:自动挂载-m

autofs dump map information
===========================

global options: none configured

Mount point: /mnt/ssh

source(s):

  instance type(s): file 
  map: /etc/auto.sshfs

  backup | -fstype=fuse,rw,nodev,noatime,allow_other,default_permissions,max_read=65536 :sshfs#USER@REMOTE:/


自动主控

/mnt/ssh        /etc/auto.sshfs         --timeout=30,--ghost,--debug


自动.sshfs

backup          -fstype=fuse,rw,nodev,noatime,allow_other,default_permissions,max_read=65536 :sshfs#USER@REMOTE:/


当我在前台自动挂载 auto.master 时（如下所述），会创建“备份”文件夹，并且远程目录会毫无问题地挂载。我可以 ls -al /mnt/ssh/backup 文件夹，并且确实正在浏览远程主机

#:automount -f -v -d auto.master
#:ls -al /mnt/ssh/backup

attempting to mount entry /mnt/ssh/backup
lookup_mount: lookup(file): looking up backup
lookup_mount: lookup(file): backup -> -fstype=fuse,rw,nodev,noatime,allow_other,default_permissions,max_read=65536 :sshfs#USER@REMOTE:/
parse_mount: parse(sun): expanded entry: -fstype=fuse,rw,nodev,noatime,allow_other,default_permissions,max_read=65536 :sshfs#USER@REMOTE:/
parse_mount: parse(sun): gathered options: fstype=fuse,rw,nodev,noatime,allow_other,default_permissions,max_read=65536
parse_mount: parse(sun): dequote(":sshfs#USER@REMOTE:/") -> :sshfs#USER@REMOTE:/
parse_mount: parse(sun): core of entry: options=fstype=fuse,rw,nodev,noatime,allow_other,default_permissions,max_read=65536, loc=:sshfs#USER@REMOTE:/
sun_mount: parse(sun): mounting root /mnt/ssh, mountpoint backup, what sshfs#USER@REMOTE:/, fstype fuse, options rw,nodev,noatime,allow_other,default_permissions,max_read=65536
do_mount: sshfs#USER@REMOTE:/ /mnt/ssh/backup type fuse options rw,nodev,noatime,allow_other,default_permissions,max_read=65536 using module generic 
mount_mount: mount(generic): calling mkdir_path /mnt/ssh/backup
mount_mount: mount(generic): calling mount -t fuse -s -o rw,nodev,noatime,allow_other,default_permissions,max_read=65536 sshfs#USER@REMOTE:/ /mnt/ssh/backup
spawn_mount: mtab link detected, passing -n to mount
mount_mount: mount(generic): mounted sshfs#USER@REMOTE:/ type fuse on /mnt/ssh/backup


但是，当我按照下面所述启动 autofs 服务时，“备份”文件夹会被创建，但是当我尝试 ls 该目录时，它却拒绝挂载。

#:service autofs start
#:ls -al /mnt/ssh/backup

attempting to mount entry /mnt/ssh/backup
lookup_mount: lookup(file): looking up backup
lookup_mount: lookup(file): backup -> -fstype=fuse,rw,nodev,noatime,allow_other,default_permissions,max_read=65536 :sshfs#USER@REMOTE:/
parse_mount: parse(sun): expanded entry: -fstype=fuse,rw,nodev,noatime,allow_other,default_permissions,max_read=65536 :sshfs#USER@REMOTE:/
parse_mount: parse(sun): gathered options: fstype=fuse,rw,nodev,noatime,allow_other,default_permissions,max_read=65536
parse_mount: parse(sun): dequote(":sshfs#USER@REMOTE:/") -> :sshfs#USER@REMOTE:/
parse_mount: parse(sun): core of entry: options=fstype=fuse,rw,nodev,noatime,allow_other,default_permissions,max_read=65536, loc=:sshfs#USER@REMOTE:/
sun_mount: parse(sun): mounting root /mnt/ssh, mountpoint backup, what sshfs#USER@REMOTE:/, fstype fuse, options rw,nodev,noatime,allow_other,default_permissions,max_read=65536
do_mount: sshfs#USER@REMOTE:/ /mnt/ssh/backup type fuse options rw,nodev,noatime,allow_other,default_permissions,max_read=65536 using module generic
mount_mount: mount(generic): calling mkdir_path /mnt/ssh/backup
mount_mount: mount(generic): calling mount -t fuse -s -o rw,nodev,noatime,allow_other,default_permissions,max_read=65536 sshfs#USER@REMOTE:/ /mnt/ssh/backup
spawn_mount: mtab link detected, passing -n to mount
>> read: Connection reset by peer
mount(generic): failed to mount sshfs#USER@REMOTE:/ (type fuse) on /mnt/ssh/backup
dev_ioctl_send_fail: token = 22
failed to mount /mnt/ssh/backup


我测试过许多解决方法，包括但不限于

  • 退出 :sshfs#USER@REMOTE:/ -:sshfs\#USER@REMOTE\:/
  • 删除 / -:sshfs#USER@REMOTE:
  • 在 auto.sshfs 中提供我的身份文件的路径 -IdentityFile=/root/.ssh/id_rsa
  • 在 auto.master 中指定 uid/gid -/mnt/ssh /etc/auto.sshfs uid=0,gid=0,--timeout=30,--ghost


我现在没有主意了，陷入困境。

提前致谢，JS


更新

@KaszpiR - 感谢您的努力，但正确的密钥已经上传到远程的authorized_keys文件，标准sftp或sshfs可以完美运行。

看来 autofs initscript（或脚本中用于启动自动挂载的选项之一）正在产生该问题，但还没有时间对其进行正确的调试。

作为一种解决方法，您可以完全删除 /etc/init.d/autofs 脚本（update-rc.d autofs 删除并将其移动到备份位置以进行安全保管）并手动或通过脚本启动自动挂载。

答案1

我遇到了同样的问题，连接到远程机器时必须从 root 用户添加 ssh 密钥，以允许无密码 ssh 登录：


sudo su -

ssh-keygen -t rsa

ssh-copy-id -i ~/.ssh/id_rsa.pub remote_user@remote_server

尝试 ssh 到远程机器，系统不会要求您输入密码。

重新启动 autofs

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