CentOS主机清理旧内核 | Word Count: 732 | Reading Time: 4mins | Post Views:
CentOS7上删除旧内核 centos7 上有专门的清理工具，package-cleanup来执行内核的清理。
[root@centos7 ~]# package-cleanup --oldkernels --count=1 Loaded plugins: fastestmirror, langpacks --> Running transaction check ---> Package kernel.x86_64 0:3.10.0-1160.el7 will be erased ---> Package kernel.x86_64 0:3.10.0-1160.88.1.el7 will be erased --> Finished Dependency Resolution base/7/x86_64 | 3.6 kB 00:00:00 base/7/x86_64/group_gz | 153 kB 00:00:00 base/7/x86_64/primary_db | 6.1 MB 00:00:00 updates/7/x86_64 | 2.9 kB 00:00:00 updates/7/x86_64/primary_db | 21 MB 00:00:01 Dependencies Resolved ================================================================================================================================================================================================================== Package Arch Version Repository Size ================================================================================================================================================================================================================== Removing: kernel x86_64 3.10.0-1160.el7 @anaconda 64 M kernel x86_64 3.10.0-1160.88.1.el7 @updates 66 M Transaction Summary ================================================================================================================================================================================================================== Remove 2 Packages Installed size: 130 M Is this ok [y/N]: y Downloading packages: Running transaction check Running transaction test Transaction test succeeded Running transaction Erasing : kernel.x86_64 1/2 Erasing : kernel.x86_64 2/2 Verifying : kernel-3.10.0-1160.88.1.el7.x86_64 1/2 Verifying : kernel-3.10.0-1160.el7.x86_64 2/2 Removed: kernel.x86_64 0:3.10.0-1160.el7 kernel.x86_64 0:3.10.0-1160.88.1.el7
CentOS8上删除旧内核 centos8以上则通过定义/etc/dnf/dnf.conf 来清理内核。
[root@centos8 ~]# dnf -y remove --oldinstallonly --setopt installonly_limt=1 kernel Main config did not have a installonly_limt attr. before setopt Repository extras is listed more than once in the configuration Main config did not have a installonly_limt attr. before setopt Dependencies resolved. ===================================================================== Package Arch Version Repository Size ===================================================================== Removing: kernel x86_64 4.18.0-425.3.1.el8 @anaconda 0 kernel x86_64 4.18.0-425.19.2.el8_7 @baseos 0 kernel-core x86_64 4.18.0-425.3.1.el8 @anaconda 70 M kernel-core x86_64 4.18.0-425.19.2.el8_7 @baseos 70 M kernel-modules x86_64 4.18.0-425.3.1.el8 @anaconda 24 M kernel-modules x86_64 4.18.0-425.19.2.el8_7 @baseos 24 M Transaction Summary ===================================================================== Remove 6 Packages Freed space: 187 M Running transaction check Transaction check succeeded. Running transaction test Transaction test succeeded. Running transaction Preparing : 1/1 Erasing : kernel-4.18.0-425.19.2.el8_7.x86_64 1/6 Running scriptlet: kernel-4.18.0-425.19.2.el8_7.x86_64 1/6 Erasing : kernel-4.18.0-425.3.1.el8.x86_64 2/6 Running scriptlet: kernel-4.18.0-425.3.1.el8.x86_64 2/6 Erasing : kernel-modules-4.18.0-425.3.1.el8.x86_64 3/6 Running scriptlet: kernel-modules-4.18.0-425.3.1.el8.x86_64 3/6 Erasing : kernel-modules-4.18.0-425.19.2.el8_7.x86_ 4/6 Running scriptlet: kernel-modules-4.18.0-425.19.2.el8_7.x86_ 4/6 Running scriptlet: kernel-core-4.18.0-425.19.2.el8_7.x86_64 5/6 Erasing : kernel-core-4.18.0-425.19.2.el8_7.x86_64 5/6 Running scriptlet: kernel-core-4.18.0-425.19.2.el8_7.x86_64 5/6 Running scriptlet: kernel-core-4.18.0-425.3.1.el8.x86_64 6/6 Erasing : kernel-core-4.18.0-425.3.1.el8.x86_64 6/6 Running scriptlet: kernel-core-4.18.0-425.3.1.el8.x86_64 6/6 Running scriptlet: kernel-core-4.18.0-425.3.1.el8.x86_64 6/6 Verifying : kernel-4.18.0-425.3.1.el8.x86_64 1/6 Verifying : kernel-4.18.0-425.19.2.el8_7.x86_64 2/6 Verifying : kernel-core-4.18.0-425.3.1.el8.x86_64 3/6 Verifying : kernel-core-4.18.0-425.19.2.el8_7.x86_64 4/6 Verifying : kernel-modules-4.18.0-425.3.1.el8.x86_64 5/6 Verifying : kernel-modules-4.18.0-425.19.2.el8_7.x86_64 6/6 Removed: kernel-4.18.0-425.3.1.el8.x86_64 kernel-4.18.0-425.19.2.el8_7.x86_64 kernel-core-4.18.0-425.3.1.el8.x86_64 kernel-core-4.18.0-425.19.2.el8_7.x86_64 kernel-modules-4.18.0-425.3.1.el8.x86_64 kernel-modules-4.18.0-425.19.2.el8_7.x86_64 Complete!
参考：How to properly remove old kernels RHEL/CentOS 8
