是的! !有一种方法可以立即分离繁忙的设备-即使它繁忙且不能强制卸载。你可以稍后清理:

umount -l /PATH/OF/BUSY-DEVICE
umount -f /PATH/OF/BUSY-NFS (NETWORK-FILE-SYSTEM)

注意/警告

这些命令可能会中断正在运行的进程，导致数据丢失或损坏打开的文件。在强制卸载后，访问目标DEVICE/NFS文件的程序可能会抛出错误或无法正常工作。 不要在挂载路径(文件夹/驱动器/设备)内部执行以上umount命令。首先，您可以使用pwd命令验证您的当前目录路径(不应该是挂载路径)，然后使用cd命令退出挂载路径-稍后使用上述命令卸载它。

sudo fusermount -u -z <mounted path>

注意:不要对路径使用补全，因为这也会冻结终端。

当您尝试卸载时，请确保您不在已安装的设备中。

众答:

如果该设备上有一个zfs池，至少当它是一个基于文件的池时，lsof将不会显示使用情况。但你可以简单地跑步

sudo zpool export mypool

然后卸载。

有人提到过，如果你正在使用终端，而你的当前目录在你想要卸载的路径中，你会得到错误。 作为补充，在这种情况下，你的lsof | grep path-to-be unmounted必须有以下输出:

bash ... path-to-be-unmounted

看看umount2:

Linux 2.1.116 added the umount2() system call, which, like umount(), unmounts a target, but allows additional flags controlling the behaviour of the operation: MNT_FORCE (since Linux 2.1.116) Force unmount even if busy. (Only for NFS mounts.) MNT_DETACH (since Linux 2.4.11) Perform a lazy unmount: make the mount point unavailable for new accesses, and actually perform the unmount when the mount point ceases to be busy. MNT_EXPIRE (since Linux 2.6.8) Mark the mount point as expired. If a mount point is not currently in use, then an initial call to umount2() with this flag fails with the error EAGAIN, but marks the mount point as expired. The mount point remains expired as long as it isn't accessed by any process. A second umount2() call specifying MNT_EXPIRE unmounts an expired mount point. This flag cannot be specified with either MNT_FORCE or MNT_DETACH. Return Value On success, zero is returned. On error, -1 is returned, and errno is set appropriately.