CentOS主机清理旧内核
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
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