Debian10.7 自动化安装镜像制作
Debian10.7 自动化安装镜像制作
一、debian的自动化安装方式介绍
第一种、FAI方式自动化安装
FAI是用于Linux的无人值守大规模部署的工具
具体方法可以参考https://fai-project.org/其官方站点
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其在线打包的功能相当方便
https://fai-project.org/FAIme/
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第二种、preseed预置文件方式完成自动化安装
Debian 安装程序支持使用预先配置的文件(preseed)进行自动安装。preseed预置文件可以从网络或移动介质上加载，并自动回答安装过程中的问题
具体步骤：从原始的ISO映像中提取initrd,将预置文件preseed添加到initrd，最后再封装创建一个新可引导的自动化安装的ISO映像
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Simple-CDD方式
还有一种是Simple-CDD方式 The All-In-One Solution
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我采用的是第二种 在preseed.cfg脚本编写上踩坑无数，经过20多次的debian自动化安装镜像打包和安装验证测试， debian10.7自动化安装终于搞定了
二、Debian10.7 preseed自动化安装镜像制作步骤
具体的操作步骤如下
1、debian官网下载debian10.7的完整版镜像文件
https://cdimage.debian.org/debian-cd/current/amd64/bt-dvd/
2、安装debian虚拟机
用于制作镜像 我这边安装成了图形化界面模式，当然安装命令行模式也是一样 安装过程就不详细描述了，参考之前的文章图解Debian10Linux系统的安装步骤
3、配置apt源，并安装镜像制作相关的软件包工具
Debian10.7的apt源配置参考之前的文章几种常用Linux系统的软件镜像源配置
安装镜像制作相关的软件包工具
apt install vim lrzsz apt install debconf-utils apt install whois #[whois工具包用于mkpasswd生成root密码的密文] apt install bsdtar apt install genisoimage4、preseed.cfg脚本
脚本主要说明
当然你可以根据自身需要进行定制，修改脚本
vi preseed.cfg添加如下内容 # US locale/kbd mapd-i debian-installer/locale string en_USd-i keyboard-configuration/xkb-keymap select us# automatically select network interfaced-i netcfg/choose_interface select autod-i netcfg/disable_dhcp boolean trued-i netcfg/disable_autoconfig boolean trued-i netcfg/get_ipaddress string 192.168.100.100d-i netcfg/get_nameservers string 223.5.5.5d-i netcfg/get_netmask string 255.255.255.0d-i netcfg/get_gateway string 192.168.100.254d-i netcfg/confirm_static boolean true# set host and domaind-i netcfg/get_hostname string debiand-i netcfg/get_domain string walkingcloud.cn# disable WEP dialogued-i netcfg/wireless_wep string# use http.us.debian.org as mirror with no proxyd-i mirror/country string manuald-i mirror/http/hostname string mirrors.cloud.tencent.comd-i mirror/http/directory string /debiand-i mirror/http/proxy string # don't make a regular user / set root passwordd-i passwd/make-user boolean false# mkpasswd -m sha-512 <pwd>d-i passwd/root-password-crypted password $6$zRyZgBe.MEy$fDGbMeV/4DHSuVrCepJC6Md4adDkV9jKjAXaaEHBhx8xs/AmTcoBo80AsYC3gyuoJX/ww2zNGdi1oYQkkd9KN/d-i passwd/root-login boolean trued-i clock-setup/utc boolean trued-i time/zone string Asia/Shanghaid-i clock-setup/ntp boolean falsed-i clock-setup/ntp-server string cn.pool.ntp.org### Partitioningd-i preseed/early_command string anna-install fdisk-udeb # use lvm partitioningd-i partman-auto/method string lvmd-i partman-lvm/device_remove_lvm boolean trued-i partman-lvm/confirm boolean trued-i partman-lvm/confirm_nooverwrite boolean true# make lvm the max sized-i partman-auto-lvm/guided_size string maxd-i partman-auto-lvm/new_vg_name string debian# use the following partition scheme on /dev/sda#d-i partman-auto/disk string /dev/sdad-i partman/early_command string debconf-set partman-auto/disk '$(list-devices disk | head -n1)'d-i partman-auto/choose_recipe select boot-lvm# /boot 500M ext4# /home 20G ext4# / 20G+ ext4d-i partman-auto/expert_recipe string \ boot-lvm :: \ 500 500 500 ext4 \ $primary{ } $bootable{ } \ method{ format } format{ } \ use_filesystem{ } filesystem{ ext4 } \ mountpoint{ /boot } \ . \ 20480 20480 20480 ext4 \ $lvmok{ } \ lv_name{ lv_home } in_vg { debian } \ $primary{ } \ method{ format } format{ } \ use_filesystem{ } filesystem{ ext4 } \ mountpoint{ /home } \ . \ 20480 20480 -1 ext4 \ $lvmok{ } \ lv_name{ lv_root } in_vg { debian } \ $primary{ } \ method{ format } format{ } \ use_filesystem{ } filesystem{ ext4 } \ mountpoint{ / } \ .# remove any RAID partitioningd-i partman-md/device_remove_md boolean true# don't confirm anythingd-i partman-basicfilesystems/no_mount_point boolean falsed-i partman-partitioning/confirm_write_new_label boolean trued-i partman/choose_partition select finishd-i partman-auto/purge_lvm_from_device boolean trued-i partman-lvm/device_remove_lvm boolean trued-i partman/confirm boolean trued-i partman/confirm_nooverwrite boolean true# disable swap warningd-i partman-basicfilesystems/no_swap boolean false# install standard system with ssh-servertasksel tasksel/first multiselect standard, ssh-server# also install other packaged-i pkgsel/include string htop net-tools vim wget iftop iotop # upgrade all packagesd-i pkgsel/upgrade select full-upgrade# disable popularity contestpopularity-contest popularity-contest/participate boolean false# Uncomment this if you don't want to use a network mirror.#d-i apt-setup/use_mirror boolean falsed-i apt-setup/no_mirror boolean trued-i apt-setup/use_mirror boolean falsed-i apt-setup/contrib boolean falsed-i apt-setup/non-free boolean falsed-i apt-setup/cdrom/set-next boolean falsed-i apt-setup/services-select multiselect# force grub install to /dev/sdad-i grub-installer/only_debian boolean trued-i grub-installer/with_other_os boolean true#d-i grub-installer/bootdev string /dev/sdad-i grub-installer/bootdev string default#d-i grub-installer/early_command string debconf-set grub-installer/bootdev '$(list-devices disk | head -n1)'# don't wait for confirm, just reboot when finishedd-i finish-install/reboot_in_progress noted-i preseed/late_command string \ cp -vrf /cdrom/tools/* /target/home/ ; \ sed -i 's/^#PermitRootLogin.*\$/PermitRootLogin yes/g' /target/etc/ssh/sshd_config ; 其中mkpasswd -m sha-512 <pwd>用于获取root密码密文
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5、iso制作脚本make_iso.sh
/opt/preseed_debian_iso_make目录下创建 make_iso.sh
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脚本来源自github
#!/bin/bashtemp_dir='isofiles'if [ $# -ne 2 ]; then echo usage $0 ISO preseed.cfg exit 1fisource_iso=$1source_iso_name=$(basename $source_iso)preseed=$2[ -f '$source_iso' ] || (echo source_iso does not exist && exit 1)[ -f '$preseed' ] || (echo preseed does not exist && exit 1)if [ ! -d '$temp_dir' ]; then mkdir -p '$temp_dir' bsdtar -C '$temp_dir' -xf '$source_iso' gunzip '$temp_dir'/install.amd/initrd.gz echo '$preseed' | cpio -H newc -o -A -F '$temp_dir'/install.amd/initrd gzip '$temp_dir'/install.amd/initrdfised -i 's/^timeout.*/timeout 1/' '$temp_dir'/isolinux/isolinux.cfgcat >'$temp_dir'/isolinux/menu.cfg <<EOFmenu hshift 4menu width 70menu title Debian GNU/Linux installer menu (BIOS mode)include stdmenu.cfginclude txt.cfgEOFcat >'$temp_dir'/isolinux/txt.cfg <<EOFlabel install menu label ^AutoInstall Debian10.7 DIY-OS v1(cdrom) menu default kernel /install.amd/vmlinuz append vga=788 auto=true priority=critical file=/preseed.cfg initrd=/install.amd/initrd.gz --- quietdefault installEOF\cp -vrf packages_add/*.deb $temp_dir/tools/\cp -vrf packages_add/*.sh $temp_dir/tools/md5sum `find $temp_dir -follow -type f` > '$temp_dir'/md5sum.txtgenisoimage -r -J -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -o 'preseed-$source_iso_name' '$temp_dir'/#rm -r '$temp_dir'其中packages_add目录为额外的工具包或者系统优化脚本
用于自动化安装完成后，若有需要，可以手动dpkg安装这些工具包以及执行该系统优化脚本
7、制作镜像
sh -x make_iso.sh /root/debian-10.7.0-amd64-DVD-1.iso preseed.cfgsh -x可以看到脚本执行过程
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8、下载ISO镜像文件并创建虚拟机测试镜像
这里用SFTP方式下载打好的镜像包 preseed-debian-10.7.0-amd64-DVD-1.iso
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创建虚拟机测试
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9、全程自动化安装
从光盘启动，无需手工干预
安装过程截图
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10、安装完成后登录验证
1)分区与网络
ip addr 可以看到分区与IP与定制的preseed.cfg文件中一致
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2)htop工具
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3)home目录也有额外的工具包或者系统优化脚本
cd /home
dpkg --install lrzsz_0.12.21-10_amd64.deb ncdu_1.13-1+b1_amd64.deb nmon_16i+debian-2_amd64.deb
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4)Env4Buster.sh 系统优化脚本
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本文完成过程参考如下文档
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