134 lines
2.4 KiB
Markdown
134 lines
2.4 KiB
Markdown
# 内核升级 #
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以下操作均在root下进行
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## 准备 ##
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需升级镜像：rocky4.2.32-sqlproxy-2017-06-09.iso
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最新镜像：rocky6.0.42.41-x86_64-security-20170815.iso
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工具：xorriso
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脚本文件：mk_iso_4.2.sh
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## 涉及到修改的目录及文件 ##
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### 光盘环境中的文件： ###
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镜像中/boot/isolinux目录下的initrd.img和vmlinuzI两个文件
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镜像中/lib/modules目录
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### 将要安装系统的文件： ###
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镜像中/Rocky/kernels目录下的所有同名文件
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镜像中/Rocky/modules目录
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## 升级内核 ##
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### 光盘下升级 ###
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1.在/mnt创建两个目录old和new
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```
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mkdir -p /mnt/{old,new}
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```
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2.挂载需修改的镜像到old下，挂载最新镜像到new下。
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```
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mount -o loop rocky4.2.32-sqlproxy-2017-06-09.iso /mnt/old
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mount -o loop rocky6.0.42.41-x86_64-security-20170815.iso /mnt/new
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```
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3.在/opt下创建一个目录image
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```
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mkdir -p /opt/image
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```
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4.将旧的镜像中的所有文件拷贝出来
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```
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cp -R /mnt/old/. /opt/image/
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```
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5.将新镜像中的initrd.img和vmlinuzI拷贝到/opt/image/boot/isolinux中
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```
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cp /mnt/new/boot/isolinux/initrd.img /opt/image/boot/isolinux/
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cp /mnt/new/boot/isolinux/vmlinuzI /opt/image/boot/isolinux/
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```
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6.升级驱动
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```
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cd /opt/image/lib/modules
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rm -r 2.6.32.41-Rocky4.2-x86_64
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cp -R /mnt/new/lib/modules/2.6.32.41-Rocky4.2-x86_64 /opt/image/lib/modules/
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```
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### 将要安装系统的升级 ###
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1.升级内核
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从rocky6.0.42.41-x86_64-security-20170815系统上获取最新内核（将和要升级镜像中相同的文件拷贝过去）
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config-2.6.32.41-Rocky4.2-x86_64
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initrd.img-2.6.32.41-Rocky4.2-x86_64
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kernel_src_info
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System.map-2.6.32.41-Rocky4.2-x86_64
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vmlinuz-2.6.32.41-Rocky4.2-x86_64
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```
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cp config-2.6.32.41-Rocky4.2-x86_64 initrd.img-2.6.32.41-Rocky4.2-x86_64 System.map-2.6.32.41-Rocky4.2-x86_64 vmlinuz-2.6.32.41-Rocky4.2-x86_64 kernel_src_info /opt/image/Rocky/kernels/
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```
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2.升级驱动
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```
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cd /opt/image/Rocky/modules/
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rm -r 2.6.32.41-Rocky4.2-x86_64/
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cp -R 2.6.32.41-Rocky4.2-x86_64/ /opt/image/Rocky/modules/
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cd 2.6.32.41-Rocky4.2-x86_64
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```
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删除无用的两个链接文件
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```
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rm build source
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```
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### 修改版本 ###
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```
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vi /opt/image/tag
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vi /opt/image/etc/issue
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vi /opt/image/usr/lib/setup/issue
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```
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## 生成镜像文件 ##
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```
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./mk_iso_4.2.sh /opt/image/ rocky4.2.32-sqlproxy-2017-08-28.iso
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```
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/opt/image/ 需要生成镜像的文件目录
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rocky4.2.32-sqlproxy-2017-08-28.iso 生成的iso文件名称
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