add ubuntu 18.04 preseeds
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content/post/ubuntu-1804-preseeds.md
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content/post/ubuntu-1804-preseeds.md
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title: "[筆記] ubuntu 18.04 preseeds "
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date: 2020-04-08T16:20:33+08:00
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draft: false
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noSummary: false
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categories: ['筆記']
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image: https://h.cowbay.org/images/post-default-3.jpg
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tags: ['pxe','preseeds']
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author: "Eric Chang"
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keywords:
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- pxe
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- preseeds
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---
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ubuntu 18.04 預設移掉了 /etc/rc.local 的功能
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變成要用 systemd 的方式來運作，可是有點難用…
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紀錄一下步驟，再來研究怎麼整合到 preseed 裡面
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<!--more-->
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### 1. 建立 rc-local.service
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#### sudo vi /etc/systemd/system/rc-local.service
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```
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[Unit]
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Description=/etc/rc.local Compatibility
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ConditionPathExists=/etc/rc.local
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[Service]
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Type=forking
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ExecStart=/etc/rc.local start
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TimeoutSec=0
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StandardOutput=tty
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RemainAfterExit=yes
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SysVStartPriority=99
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[Install]
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WantedBy=multi-user.target
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```
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### 2. 建立 rc.local.bak
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這個檔案的作用是，我只需要client在PXE 裝完系統後的第一次開機會發通知信件
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所以如果一直保留著 /etc/rc.local 的變動，就變成每次開機都會送出信件
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因此，需要先保留原本的 rc.local
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在送出通知信件之後，就用原來的 rc.local 蓋掉修改過的 rc.local
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#### sudo vi /etc/rc.local.bak
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```
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#!/bin/sh -e
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#
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# rc.local
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#
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# This script is executed at the end of each multiuser runlevel.
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# Make sure that the script will "exit 0" on success or any other
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# value on error.
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#
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# In order to enable or disable this script just change the execution
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# bits.
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#
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# By default this script does nothing.
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exit 0
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```
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### 3. 建立 rc.local
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#### sudo vi /etc/rc.local
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```
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#!/bin/sh -e
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#
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# rc.local
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#
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# This script is executed at the end of each multiuser runlevel.
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# Make sure that the script will "exit 0" on success or any other
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# value on error.
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#
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# In order to enable or disable this script just change the execution
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# bits.
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#
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# By default this script does nothing.
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hostname|mail -s pxe_install_complete changch@abc.com
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cp /etc/rc.local.bak /etc/rc.local
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exit 0
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```
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### 4. 修改 rc.local permission
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```
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sudo chmod +x /etc/rc.local
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```
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### 5. 啟用 rc-local service
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```
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sudo systemctl enable rc-local
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```
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---
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ubuntu 18.04 preseeds files
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````
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# Title: Ubuntu 18.04 preseed.cfg
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#
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# File: templates/os-ubuntu-1804-amd64-preseed.cfg
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# modified by Eric , 2019/07
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### Localization
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# Keyboard selection.
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# Disable automatic (interactive) keymap detection.
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#d-i console-setup/ask_detect boolean false
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d-i keyboard-configuration/xkb-keymap select us
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d-i console-setup/ask_detect boolean false
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d-i console-setup/layoutcode string us
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d-i keyboard-configuration/ask_detect boolean false
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d-i keyboard-configuration/layoutcode string us
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# The values can also be preseeded individually for greater flexibility.
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d-i localechooser/preferred-locale string en_US.UTF-8
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d-i localechooser/supported-locales en_US.UTF-8
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d-i debian-installer/language string en
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d-i debian-installer/country string US
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d-i debian-installer/locale string en_US.UTF-8
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d-i localechooser/continentlist string Asia
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### Network
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d-i netcfg/choose_interface select auto
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### Mirror settings
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# If you select ftp, the mirror/country string does not need to be set.
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d-i mirror/country string manual
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d-i mirror/http/proxy string {{ proxy_env }}
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d-i mirror/http/hostname string {{ pxe_preseed_mirror }}
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d-i mirror/http/directory string /ubuntu
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d-i mirror/http/mirror select {{ pxe_preseed_mirror }}
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### Hostname
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#d-i netcfg/get_hostname string unassigned-hostname
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#d-i netcfg/get_domain string unassigned-domain
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d-i netcfg/get_hostname string ubuntu
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d-i netcfg/get_domain string abc.com
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### account
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d-i passwd/root-login boolean false
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d-i passwd/user-fullname string Adminstrator
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d-i passwd/username string administrator
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d-i passwd/user-password-crypted password $6$random_salt$VaSwPia0/6XHIicZLTaDceuRo/f9A6V4WazuZF/lhgQOhRJcKPO5yZ/ZxtBWrAhlDZOQ7GI3s4bPr9485Shry.
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d-i user-setup/allow-password-weak boolean true
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d-i user-setup/encrypt-home boolean false
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d-i passwd/user-default-groups string audio cdrom video sudo adm
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### Clock & Timezone
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d-i clock-setup/utc boolean true
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d-i time/zone string {{ pxe_preseed_timezone }}
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d-i clock-setup/ntp boolean true
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#d-i tzconfig/gmt boolean true
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d-i tzconfig/choose_country_zone/Asia select Taipei
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d-i tzconfig/choose_country_zone_single boolean true
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# Disable that annoying WEP key dialog.
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d-i netcfg/wireless_wep string ubuntu
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### Partitioning
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d-i partman-auto/method string regular
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d-i partman-lvm/device_remove_lvm boolean true
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d-i partman-md/device_remove_md boolean true
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d-i partman-lvm/confirm boolean true
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d-i partman-lvm/confirm_nooverwrite boolean true
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d-i partman-auto/choose_recipe select default-disk-layout
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# Or provide a recipe of your own...
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d-i partman-auto/expert_recipe string \
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default-disk-layout :: \
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10240 20480 -1 ext4 \
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$primary{ } $bootable{ } \
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method{ format } format{ } \
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use_filesystem{ } filesystem{ ext4 } \
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label{ root } \
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mountpoint{ / } \
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. \
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1024 2048 200% linux-swap \
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method{ swap } format{ } \
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. \
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d-i partman/default_filesystem string ext4
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d-i partman-partitioning/confirm_write_new_label boolean true
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d-i partman/choose_partition select finish
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d-i partman/confirm boolean true
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d-i partman/confirm_nooverwrite boolean true
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d-i partman/mount_style select uuid
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### Base system installation
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d-i base-installer/kernel/image string linux-generic
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### Apt setup
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d-i apt-setup/restricted boolean true
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d-i apt-setup/universe boolean true
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d-i apt-setup/backports boolean true
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d-i apt-setup/services-select multiselect security
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d-i apt-setup/security_host string security.ubuntu.com
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d-i apt-setup/security_path string /ubuntu
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# Package selection (tasksel --list-tasks)
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#tasksel tasksel/first multiselect server, openssh-server
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tasksel tasksel/first multiselect standard, openssh-server, ubuntu-desktop
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# Individual packages (python-minimal for Ansible)
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d-i pkgsel/include string ssh net-tools python2.7 axel curl vim unzip zip apt-file lynx elinks sysstat ntp htop screen apt-transport-https wget curl git rsync postfix mailutils
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# Update policy
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d-i pkgsel/upgrade select safe-upgrade
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d-i pkgsel/update-policy select unattended-upgrades
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popularity-contest popularity-contest/participate boolean false
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d-i pkgsel/updatedb boolean true
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## postfix preseeding
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postfix postfix/main_mailer_type select Internet Site
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postfix postfix/mailname string pxe.abc.com
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postfix postfix/protocols select ipv4
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# Reporting
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popularity-contest popularity-contest/participate boolean false
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# Bootloader
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d-i grub-installer/only_debian boolean true
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d-i grub-installer/with_other_os boolean true
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d-i finish-install/keep-consoles boolean true
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d-i finish-install/reboot_in_progress note
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d-i cdrom-detect/eject boolean true
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#### Advanced options
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d-i preseed/late_command string \
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in-target wget --no-proxy http://192.168.1.7/rc-local.service -O /etc/systemd/system/rc-local.service ;\
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in-target wget --no-proxy http://192.168.1.7/rc.local.pxe -O /etc/rc.local.pxe ;\
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in-target wget --no-proxy http://192.168.1.7/rc.local.bak -O /etc/rc.local.bak ;\
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in-target chmod +x /etc/rc.local.pxe ;\
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in-target chmod +x /etc/rc.local.bak ;\
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in-target cp /etc/rc.local.pxe /etc/rc.local ;\
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in-target systemctl enable rc-local ;\
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in-target ln -s /usr/bin/python3.6 /usr/bin/python
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```
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