http://www.zhanghaijun.com/index.php zh-cn http://www.zhanghaijun.com/post/977/ 碟舞飞扬 <webmaster@zhanghaijun.com> Tue, 10 Jul 2018 07:07:14 +0000 http://www.zhanghaijun.com/post/977/
进系统之后，启动某些服务发现仍然有分区文件损坏，于是想要卸载分区挂载点来修复文件系统，结果执行umount的时候无法卸载，逐执行fuser命令查看是什么进程在占用，结果直接报-bash: fuser: command not found，找不到此命令。

一般这种错误就是系统没有安装相关的包，所以没有这个命令，解决方法很简单，找到这个命令在哪个包里，安装上就可以了，但是麻烦的就是很多命令你不知道是在哪个包里面，还好yum有个功能可以查到某个命令在哪个包里面，使用yum provides  ifconfig，yum provides lsof，yum provides fuser等可以查到这个命令的安装包是什么，用起来很方便。
# yum provides fuser Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.aliyun.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com psmisc-22.20-15.el7.x86_64 : Utilities for managing processes on your system Repo        : base Matched from: Filename    : /usr/sbin/fuser psmisc-22.20-15.el7.x86_64 : Utilities for managing processes on your system Repo        : @base Matched from: Filename    : /usr/sbin/fuser
知道在哪个包里使用yum安装即可。
# yum -y install psmisc Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.aliyun.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com base                                                                                                                              | 3.6 kB  00:00:00     extras                                                                                                                            | 3.4 kB  00:00:00     updates                                                                                                                           | 3.4 kB  00:00:00     Resolving Dependencies --> Running transaction check ---> Package psmisc.x86_64 0:22.20-15.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ========================================================================================================================================================= Package                            Arch                               Version                                    Repository                        Size ========================================================================================================================================================= Installing: psmisc                             x86_64                             22.20-15.el7                               base                             141 k Transaction Summary ========================================================================================================================================================= Install  1 Package Total download size: 141 k Installed size: 475 k Downloading packages: psmisc-22.20-15.el7.x86_64.rpm                                                                                                    | 141 kB  00:00:00     Running transaction check Running transaction test Transaction test succeeded Running transaction   Installing : psmisc-22.20-15.el7.x86_64                                                                                                            1/1   Verifying  : psmisc-22.20-15.el7.x86_64                                                                                                            1/1 Installed:   psmisc.x86_64 0:22.20-15.el7                                                                                                                           Complete!

Tags - linux , fuser ]]> http://www.zhanghaijun.com/post/977/#blogcomment2507 段 <user@domain.com> Fri, 09 Sep 2022 22:36:48 +0000 http://www.zhanghaijun.com/post/977/#blogcomment2507