记录一次升级kernel

Posted 2021-03-16 kingzhe

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记录一次升级非官方kernel 5.4.10-1.el7.elrepo

[root@va32llufweb03 ~]# cd /etc/yum.repos.d/

[root@va32llufweb03 yum.repos.d]# ls

CentOS-Base.repo CentOS-Debuginfo.repo CentOS-Media.repo CentOS-Vault.repo epel-testing.repo

CentOS-CR.repo CentOS-fasttrack.repo CentOS-Sources.repo epel.repo

[root@va32llufdb02 yum.repos.d]# mkdir bkk

[root@va32llufdb02 yum.repos.d]# ls

bkk CentOS-CR.repo CentOS-fasttrack.repo CentOS-Sources.repo epel.repo

CentOS-Base.repo CentOS-Debuginfo.repo CentOS-Media.repo CentOS-Vault.repo epel-testing.repo

[root@va32llufdb02 yum.repos.d]#

[root@va32llufdb02 yum.repos.d]# mv *.repo bkk/

[root@va32llufdb02 yum.repos.d]# ls

bkk

[root@va32llufdb02 yum.repos.d]#

[root@va32llufdb02 yum.repos.d]# vi elrepo.repo

### Name: ELRepo.org Community Enterprise Linux Repository for el7
### URL: http://elrepo.org/

[elrepo]
name=ELRepo.org Community Enterprise Linux Repository - el7
baseurl=http://elrepo.org/linux/elrepo/el7/$basearch/
        http://mirrors.coreix.net/elrepo/elrepo/el7/$basearch/
        http://mirror.rackspace.com/elrepo/elrepo/el7/$basearch/
        http://repos.lax-noc.com/elrepo/elrepo/el7/$basearch/
        http://mirror.ventraip.net.au/elrepo/elrepo/el7/$basearch/
mirrorlist=http://mirrors.elrepo.org/mirrors-elrepo.el7
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-elrepo.org
protect=0

[elrepo-testing]
name=ELRepo.org Community Enterprise Linux Testing Repository - el7
baseurl=http://elrepo.org/linux/testing/el7/$basearch/
        http://mirrors.coreix.net/elrepo/testing/el7/$basearch/
        http://mirror.rackspace.com/elrepo/testing/el7/$basearch/
        http://repos.lax-noc.com/elrepo/testing/el7/$basearch/
        http://mirror.ventraip.net.au/elrepo/testing/el7/$basearch/
mirrorlist=http://mirrors.elrepo.org/mirrors-elrepo-testing.el7
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-elrepo.org
protect=0

[elrepo-kernel]
name=ELRepo.org Community Enterprise Linux Kernel Repository - el7
baseurl=http://elrepo.org/linux/kernel/el7/$basearch/
        http://mirrors.coreix.net/elrepo/kernel/el7/$basearch/
        http://mirror.rackspace.com/elrepo/kernel/el7/$basearch/
        http://repos.lax-noc.com/elrepo/kernel/el7/$basearch/
        http://mirror.ventraip.net.au/elrepo/kernel/el7/$basearch/
mirrorlist=http://mirrors.elrepo.org/mirrors-elrepo-kernel.el7
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-elrepo.org
protect=0

[elrepo-extras]
name=ELRepo.org Community Enterprise Linux Extras Repository - el7
baseurl=http://elrepo.org/linux/extras/el7/$basearch/
        http://mirrors.coreix.net/elrepo/extras/el7/$basearch/
        http://mirror.rackspace.com/elrepo/extras/el7/$basearch/
        http://repos.lax-noc.com/elrepo/extras/el7/$basearch/
        http://mirror.ventraip.net.au/elrepo/extras/el7/$basearch/
mirrorlist=http://mirrors.elrepo.org/mirrors-elrepo-extras.el7
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-elrepo.org
protect=0

[root@va32llufdb02 yum.repos.d]# rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org

[root@va32llufdb02 yum.repos.d]# yum makecache

[root@va32llufdb02 yum.repos.d]# yum --enablerepo=elrepo-kernel install kernel-ml

Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * elrepo: iad.mirror.rackspace.com
 * elrepo-kernel: iad.mirror.rackspace.com
elrepo-kernel                                                                                                                      | 2.9 kB  00:00:00
elrepo-kernel/primary_db                                                                                                           | 1.9 MB  00:00:01
Resolving Dependencies
--> Running transaction check
---> Package kernel-ml.x86_64 0:5.4.10-1.el7.elrepo will be installed
--> Finished Dependency Resolution

Dependencies Resolved

==========================================================================================================================================================
 Package                           Arch                           Version                                     Repository                             Size
==========================================================================================================================================================
Installing:
 kernel-ml                         x86_64                         5.4.10-1.el7.elrepo                         elrepo-kernel                          49 M

Transaction Summary
==========================================================================================================================================================
Install  1 Package

Total download size: 49 M
Installed size: 219 M
Is this ok [y/d/N]: y
Downloading packages:
kernel-ml-5.4.10-1.el7.elrepo.x86_64.rpm                                                                                           |  49 MB  00:00:01
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : kernel-ml-5.4.10-1.el7.elrepo.x86_64                                                                                                   1/1
  Verifying  : kernel-ml-5.4.10-1.el7.elrepo.x86_64                                                                                                   1/1

Installed:
  kernel-ml.x86_64 0:5.4.10-1.el7.elrepo

Complete!

[root@va32llufhaproxy01 yum.repos.d]# rpm -qa |grep kernel-ml
kernel-ml-5.4.10-1.el7.elrepo.x86_64

[root@va32llufdb02 yum.repos.d]# grub2-set-default 0;grub2-mkconfig -o /etc/grub2.cfg

Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.4.10-1.el7.elrepo.x86_64
Found initrd image: /boot/initramfs-5.4.10-1.el7.elrepo.x86_64.img
Found linux image: /boot/vmlinuz-3.10.0-862.9.1.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-862.9.1.el7.x86_64.img
Found linux image: /boot/vmlinuz-3.10.0-862.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-862.el7.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-ec2657014a354acbb2ff6f3219b544db
Found initrd image: /boot/initramfs-0-rescue-ec2657014a354acbb2ff6f3219b544db.img
done

重启即可生效

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