Linux CentOS 内核版本 2.6 升级为 4.4
Linux CentOS Docker About 1,974 words前提
安装Docker1.7.1
之后版本的前置条件是Linux
内核版本最低为3.10
。
查看 Centos 版本
cat /etc/centos-release
输出:
CentOS release 6.10 (Final)
查看内核版本
uname -r
输出:2.6
版本
2.6.32-754.el6.x86_64
升级步骤
1. 导入 public key
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
如果报错:
curl: (35) SSL connect error
error: https://www.elrepo.org/RPM-GPG-KEY-elrepo.org: import read failed(2).
升级nss
:
yum update nss
2. 安装 ELRepo 到 Centos6.X 中
截至发文前最新版 ELRepo 最新版为6.9
,可在官网中选择适合Centos
版本的ELRepo
版本下载。
rpm -Uvh http://www.elrepo.org/elrepo-release-6-9.el6.elrepo.noarch.rpm
3. 安装 kernel-lt(long term support) 长期支持版本
yum --enablerepo=elrepo-kernel install kernel-lt -y
4. 修改引导文件 grub.conf 的引导顺序
vim /etc/grub.conf
将defalut=1
修改为default=0
,保存退出。
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You have a /boot partition. This means that
# all kernel and initrd paths are relative to /boot/, eg.
# root (hd0,0)
# kernel /vmlinuz-version ro root=/dev/mapper/vg_zbj-lv_root
# initrd /initrd-[generic-]version.img
#boot=/dev/sda
default=1 #此处修改为0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title CentOS (4.4.190-1.el6.elrepo.x86_64)
root (hd0,0)
kernel /vmlinuz-4.4.190-1.el6.elrepo.x86_64 ro root=/dev/mapper/vg_zbj-lv_root rd_NO_LUKS rd_LVM_LV=vg_zbj/lv_root LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto KEYBOARDTYPE=pc KEYTABLE=us rd_LVM_LV=vg_zbj/lv_swap rd_NO_DM rhgb quiet
initrd /initramfs-4.4.190-1.el6.elrepo.x86_64.img
title CentOS 6 (2.6.32-754.el6.x86_64)
root (hd0,0)
kernel /vmlinuz-2.6.32-754.el6.x86_64 ro root=/dev/mapper/vg_zbj-lv_root rd_NO_LUKS rd_LVM_LV=vg_zbj/lv_root LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto KEYBOARDTYPE=pc KEYTABLE=us rd_LVM_LV=vg_zbj/lv_swap rd_NO_DM rhgb quiet
initrd /initramfs-2.6.32-754.el6.x86_64.img
5. 重启机器
reboot
6. 检查是否更新成功
uname -r
参考
Views: 5,059 · Posted: 2019-09-06
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