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Linux安装Docker

标签: Linux yum

yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum makecache fast
yum -y install docker-ce
service docker start
vi /etc/docker/daemon.json
{
  "registry-mirrors": ["https://*****.mirror.aliyuncs.com"]
}
systemctl daemon-reload
systemctl restart docker
yum源
[root@localhost ~]# cd /etc/yum.repos.d/
[root@localhost yum.repos.d]# ll
total 44
-rw-r--r--. 1 root root 2573 Mar 21  2017 CentOS-Base.repo
-rw-r--r--. 1 root root 1664 Nov 30  2016 CentOS-Base.repo.backup
Docker加速
[root@localhost ~]# cat /etc/docker/daemon.json 
{
  "registry-mirrors": ["https://*****.mirror.aliyuncs.com"]
}

Linux升级内核kernel

标签: Linux yum kernel

uname -r
yum groupinstall "Development Tools" -y
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-3.el7.elrepo.noarch.rpm
yum --disablerepo="*" --enablerepo="elrepo-kernel"list available
yum --disablerepo="*" --enablerepo="elrepo-kernel" list available
yum --enablerepo=elrepo-kernel install kernel-lt
awk -F\' '$1=="menuentry " {print $2}' /etc/grub2.cfg 
grub2-set-default0
reboot
uname -r

启动项

[root@localhost ~]# awk -F\' '$1=="menuentry " {print $2}' /etc/grub2.cfg
CentOS Linux (4.4.112-1.el7.elrepo.x86_64) 7 (Core)
CentOS Linux (3.10.0-514.10.2.el7.x86_64) 7 (Core)
CentOS Linux (3.10.0-514.el7.x86_64) 7 (Core)
CentOS Linux (0-rescue-5bb255f67f7f40dd8f4af646ea15c6b5) 7 (Core)
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