删除ubuntu旧内核的方法

https://www.jianshu.com/p/75edb9a5fbab

磁盘满了 需要清理系统盘

   uname -a

  Linux 10-9-37-135 3.13.0-110-generic #157-Ubuntu SMP Mon Feb 20 11:54:05 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

 版本是3.13.0-110

2，看一下当前系统安装的内核版本:

    dpkg --get-selections|grep linux

    libselinux1:amd64                               install                                                      
    linux-firmware                                  install                                                      
    linux-generic                                   install                                                      
    linux-headers-3.13.0-100                        install                                                      
    linux-headers-3.13.0-100-generic                install                                                      
    linux-headers-3.13.0-101                        install                                                      
    linux-headers-3.13.0-101-generic                install                                                      
    linux-headers-3.13.0-103                        install                                                      
    linux-headers-3.13.0-103-generic                install                                                      
    linux-headers-3.13.0-105                        install                                                      
    linux-headers-3.13.0-105-generic                install                                                      
    linux-headers-3.13.0-106                        install                                                      
    linux-headers-3.13.0-106-generic                install                                                      
    linux-headers-3.13.0-107                        install                                                      
    linux-headers-3.13.0-107-generic                install                                                      
    linux-headers-3.13.0-108                        install                                                      
    linux-headers-3.13.0-108-generic                install                                                      
    linux-headers-3.13.0-109                        install                                                      
    linux-headers-3.13.0-109-generic                install                                                      
    linux-headers-3.13.0-110                        install                                                      
    linux-headers-3.13.0-110-generic                install                                                      
    linux-headers-3.13.0-63                         install                                                      
    linux-headers-3.13.0-63-generic                 install                                                      
    linux-headers-3.13.0-68                         install                                                      
    linux-headers-3.13.0-68-generic                 install                                                      
    linux-headers-3.13.0-71                         install                                                      
    linux-headers-3.13.0-71-generic                 install                                                      
    linux-headers-3.13.0-74                         install                                                      
    linux-headers-3.13.0-74-generic                 install                                                      
    linux-headers-3.13.0-76                         install                                                      
    linux-headers-3.13.0-76-generic                 install                                                      
    linux-headers-3.13.0-77                         install                                                                                  
    linux-image-3.13.0-100-generic                  install                                                      
    linux-image-3.13.0-101-generic                  install                                                      
    linux-image-3.13.0-103-generic                  install                                                      
    linux-image-3.13.0-105-generic                  install                                                      
    linux-image-3.13.0-106-generic                  install                                                      
    linux-image-3.13.0-107-generic                  install                                                      
    linux-image-3.13.0-108