blocks|key|1761695|text|umount+-a+-t+cifs+-l|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1761696|在CentOS+6.3上对我来说很有吸引力。这为我节省了重启服务器的时间。|1761697|entityMap^0|0|K|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|N|8|@]|D|@]|E|$]]]|I|$]]

<code>umount -a -t cifs -l</code>

worked like a charm for me on CentOS 6.3. It saved me a server reboot.

blocks|key|1761951|text|在RHEL+6上，这是可行的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1761952|umount+-f+-a+-t+cifs+-l+|code-block|syntax|javascript|1761953|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

On RHEL 6 this worked:

<pre><code>umount -f -a -t cifs -l 
</code></pre>

blocks|key|1761777|text|这适用于我(从Ubuntu+13.10桌面到Ubuntu+14.04服务器)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1761778|+sudo+umount+-f+/mnt/my_share|code-block|syntax|javascript|1761779|挂载了|1761780|+sudo+mount+-t+cifs+-o+username=me,password=mine+//192.168.0.111/serv_share+/mnt/my_share|1761781|其中，serv_share是在smb.conf文件中设置并指向的。|1761782|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

This works for me (Ubuntu 13.10 Desktop to an Ubuntu 14.04 Server) :-

<pre><code> sudo umount -f /mnt/my_share
</code></pre>

Mounted with 

<pre><code> sudo mount -t cifs -o username=me,password=mine //192.168.0.111/serv_share /mnt/my_share
</code></pre>

where serv_share is that set up and pointed to in the smb.conf file.

blocks|key|1761593|text|您可以尝试使用-f选项来卸载：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1761594|umount+-f+/mnt/fileshare|code-block|syntax|javascript|1761595|您是否指定了要装载的'-t+cifs‘选项？另外，请确保您没有指定要挂载的“hard”选项。|1761596|您可能还想考虑fusesmb，因为文件系统将在用户空间中运行，您可以像终止任何其他进程一样终止它。|offset|length|1761597|entityMap|0|LINK|mutability|MUTABLE|url|http://www.ricardis.tudelft.nl/~vincent/fusesmb/^0|0|0|0|7|7|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|X|8|@]|9|@$K|Y|L|Z|1|10]]|A|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|T]]]]

There's a -f option to umount that you can try:

<pre><code>umount -f /mnt/fileshare
</code></pre>

Are you specifying the '-t cifs' option to mount? Also make sure you're not specifying the 'hard' option to mount.

You may also want to consider <a href="http://www.ricardis.tudelft.nl/~vincent/fusesmb/" rel="nofollow noreferrer">fusesmb</a>, since the filesystem will be running in userspace you can kill it just like any other process.

blocks|key|1761652|text|尝试安装-f+/mnt/share。在NFS上工作正常，在cifs上从未尝试过。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1761653|另外，看看autofs，它只会在访问时挂载共享，并在以后卸载它。|1761654|在www.howtoforge.net上有一个很好的教程|offset|length|1761655|entityMap|0|LINK|mutability|MUTABLE|url|http://www.howtoforge.com/accessing_windows_or_samba_shares_using_autofs^0|0|0|1|I|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@$F|S|G|T|1|U]]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

Try umount -f /mnt/share. Works OK with NFS, never tried with cifs.

Also, take a look at autofs, it will mount the share only when accessed, and will unmount it afterworlds.

There is a good tutorial at <a href="http://www.howtoforge.com/accessing_windows_or_samba_shares_using_autofs" rel="nofollow noreferrer">www.howtoforge.net</a>

blocks|key|1546998|text|我在使用davfs时也遇到了类似的问题。在umount.davfs的手册页中，我发现umount.davfs忽略了-f+-l+-n+-r+-v选项。要强制卸载我的davfs挂载，我必须使用umount+-i+-f+-l+/media/davmount。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1546999|entityMap^0|L|C|16|C|1L|E|2M|V|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|G|$]]

I had a very similar problem with davfs. In the man page of <code>umount.davfs</code>, I found that the <code>-f -l -n -r -v</code> options are ignored by <code>umount.davfs</code>. To force-unmount my davfs mount, I had to use <code>umount -i -f -l /media/davmount</code>.

blocks|key|1762049|text|umount+-f+-t+cifs+-l+/mnt+&|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1762050|小心&，让umount在后台运行。umount将首先分离文件系统，因此您将找不到与/mnt有关的任何内容。如果您运行df命令，那么它将强制执行umount+/mnt。|unstyled|offset|length|style|CODE|1762051|entityMap^0|0|2|1|5|6|H|6|15|4|1M|2|1Z|B|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@$G|O|H|P|I|J]|$G|Q|H|R|I|J]|$G|S|H|T|I|J]|$G|U|H|V|I|J]|$G|W|H|X|I|J]|$G|Y|H|Z|I|J]]|9|@]|A|$]]|$1|K|3|-4|5|F|7|10|8|@]|9|@]|A|$]]]|L|$]]

<pre><code>umount -f -t cifs -l /mnt &amp;
</code></pre>

Be careful of <code>&amp;</code>, let <code>umount</code> run in background.
<code>umount</code> will detach filesystem first, so you will find nothing abount <code>/mnt</code>. If you run <code>df</code> command, then it will <code>umount /mnt</code> forcibly.

blocks|key|1547114|text|在RHEL+6上，这也适用于我：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1547115|卸载-f+-a+-t+cifs+-l+FOLDER_NAME|1547116|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

On RHEL 6 this worked for me also:

umount -f -a -t cifs -l FOLDER_NAME

blocks|key|1762119|text|懒惰的卸载将为您完成这项工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1762120|umount+-l+<mount+path>|code-block|syntax|javascript|1762121|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

A lazy unmount will do the job for you.

<pre><code>umount -l &lt;mount path&gt;
</code></pre>

I have a CIFS share mounted on a Linux machine. The CIFS server is down, or the internet connection is down, and anything that touches the CIFS mount now takes several minutes to timeout, and is unkillable while you wait. I can't even run ls in my home directory because there is a symlink pointing inside the CIFS mount and ls tries to follow it to decide what color it should be. If I try to umount it (even with -fl), the umount process hangs just like ls does. Not even sudo kill -9 can kill it. How can I force the kernel to unmount?

How do you force a CIFS connection to unmount

文件系统

服务器

CentOS

Ubuntu

Linux

我在Linux计算机上装载了一个CIFS共享。CIFS服务器已关闭，或internet连接已中断，任何涉及CIFS装载的内容现在都需要几分钟才能超时，并且在您等待的过程中无法终止。我甚至不能在我的主目录中运行ls，因为在CIFS挂载中有一个符号链接指向，并且ls尝试跟随它来决定它应该是什么颜色。如果我尝试卸载它(即使使用-fl)，umount进程也会像ls一样挂起。即使是sudo kill -9也

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