Vagrant在Ubuntu 14.04上挂载NFS时卡住了。

Question

直到今天我的vagrant设置一直运行得很好。但是出了些问题，我找不到原因。

突然间，当我执行vagrant up命令时，它卡在挂载NFS共享文件夹上。

我猜测是由于主机的一些更新导致了某些问题。以下是vagrant up --debug命令的输出和最近2天的更新列表。

下面是vagrant的输出：

==> default: Mounting NFS shared folders...
DEBUG ssh: Checking whether SSH is ready...
DEBUG ssh: Re-using SSH connection.
 INFO ssh: SSH is ready!
DEBUG ssh: Re-using SSH connection.
 INFO ssh: Execute:  (sudo=false)
DEBUG ssh: Exit status: 0
DEBUG guest: Searching for cap: mount_nfs_folder
DEBUG guest: Checking in: ubuntu
DEBUG guest: Checking in: debian
DEBUG guest: Checking in: linux
DEBUG guest: Found cap: mount_nfs_folder in linux
 INFO guest: Execute capability: mount_nfs_folder [#<Vagrant::Machine: default (VagrantPlugins::ProviderVirtualBox::Provider)>, "192.168.56.1", {"/home/vagrant"=>{:type=>:nfs, :mount_options=>["nolock,vers=3,udp,noatime,fsc,actimeo=1"], :guestpath=>"/home/vagrant", :hostpath=>"/home/stefan/NetBeansProjects/cargoplanning", :disabled=>false, :map_uid=>1000, :map_gid=>1000, :nfs_udp=>true, :nfs_version=>3, :uuid=>"2352560104", :linux__nfs_options=>["rw", "no_subtree_check", "all_squash", "anonuid=1000", "anongid=1000", "fsid=2352560104"]}}] (ubuntu)
DEBUG ssh: Checking whether SSH is ready...
DEBUG ssh: Re-using SSH connection.
 INFO ssh: SSH is ready!
DEBUG ssh: Re-using SSH connection.
 INFO ssh: Execute:  (sudo=false)
DEBUG ssh: Exit status: 0
DEBUG guest: Searching for cap: shell_expand_guest_path
DEBUG guest: Checking in: ubuntu
DEBUG guest: Checking in: debian
DEBUG guest: Checking in: linux
DEBUG guest: Found cap: shell_expand_guest_path in linux
 INFO guest: Execute capability: shell_expand_guest_path [#<Vagrant::Machine: default (VagrantPlugins::ProviderVirtualBox::Provider)>, "/home/vagrant"] (ubuntu)
DEBUG ssh: Re-using SSH connection.
 INFO ssh: Execute: echo; printf /home/vagrant (sudo=false)
DEBUG ssh: Exit status: 0
DEBUG ssh: stdout: 
/home/vagrant
DEBUG ssh: Re-using SSH connection.
 INFO ssh: Execute: mkdir -p /home/vagrant (sudo=true)
DEBUG ssh: stderr: stdin: is not a tty

DEBUG ssh: Exit status: 0
DEBUG ssh: Re-using SSH connection.
 INFO ssh: Execute: mount -o 'nolock,vers=3,udp,noatime,fsc,actimeo=1' 192.168.56.1:'/home/stefan/NetBeansProjects/cargoplanning' /home/vagrant (sudo=true)
DEBUG ssh: stderr: stdin: is not a tty

DEBUG ssh: Sending SSH keep-alive...
DEBUG ssh: Sending SSH keep-alive...
DEBUG ssh: Sending SSH keep-alive...
DEBUG ssh: Sending SSH keep-alive...
DEBUG ssh: Sending SSH keep-alive...
DEBUG ssh: Sending SSH keep-alive...

- Stev

Answer 1

尝试重新启动nfs服务（对于我在Arch中，使用sudo systemctl restart nfs-server.service命令），或者从/etc/exports文件中删除与Vagrant相关的条目（它们被#VAGRANT-BEGIN: ... #VAGRANT-END:注释包围），然后重新启动服务。

- zinovyev

---

如果您的主机是Ubuntu，请执行service nfs-server restart来重启NFS服务器。 - Tom

Answer 2

问题出在UDP协议上。我从VagrantFile配置行中移除了UDP。

:mount_options => ['nolock,vers=3,udp,noatime,fsc,actimeo=1']

此外，即使udp更快，也不建议使用。https://github.com/mitchellh/vagrant/issues/2304

- Stev

Answer 3

对于仍在寻找问题的其他人和使用18.04版本的用户，我在我的案例中找到了问题所在。

看起来在我的情况下，即使已经安装nfs-kernel-server和nfs-common，但nfs-server包依然缺失，我安装了nfs-server后，vagrant up就可以正常工作了。Vagrant 2.0.3和Virtualbox build 5.2.18_Ubuntu r123745。

- DWils