install-ubuntu-18.04-pxe
Table of Contents
Unattended Installation of Ubuntu Server 18.04 via PXE
Preface
export P=/ubuntu/18.04 export TFTPROOT=/var/lib/tftp export WEBROOT=/var/lib/www/html export HTTP_URL=http://192.168.1.1
Directory Structure
mkdir -p $TFTPROOT/$P mkdir -p $WEBROOT/$P
Obtain necessary files
export URL=http://archive.ubuntu.com/ubuntu/dists/bionic-updates/main/installer-amd64/current/images/netboot/ubuntu-installer/amd64 wget -O $TFTPROOT/$P/initrd.gz $URL/initrd.gz wget -O $TFTPROOT/$P/linux $URL/linux
Create pxelinux.cfg stanza
cat << EOF >> $TFTPROOT/pxelinux.cfg/default LABEL ubuntu18.04 MENU LABEL Ubuntu 18.04 Installation x64 KERNEL $P/linux IPAPPEND 1 APPEND initrd=$P/initrd.gz ksdevice=eth0 locale=en_US.UTF-8 keyboard-configuration/layoutcode=de interface=eth0 hostname=ubuntu18 url=$HTTP_URL/$P/preseed.cfg EOF
Create sources.list
Because of the PXE installation, sources.list in the installed system is empty - thus a usable sources.list is downloaded in the final stage of the installation - see below.
cat << EOF > $WEBROOT/$P/sources.list ###### Ubuntu Main Repos deb http://at.archive.ubuntu.com/ubuntu/ bionic main restricted universe multiverse ###### Ubuntu Update Repos deb http://at.archive.ubuntu.com/ubuntu/ bionic-security main restricted universe multiverse deb http://at.archive.ubuntu.com/ubuntu/ bionic-updates main restricted universe multiverse EOF
Create preseed.cfg
cat << EOF > $WEBROOT/$P/preseed.cfg d-i debian-installer/locale string en_US d-i console-setup/ask_detect boolean false d-i keyboard-configuration/layoutcode string de d-i netcfg/choose_interface select eth0 d-i netcfg/get_hostname string ubuntu18 d-i netcfg/get_domain string test.local d-i netcfg/wireless_wep string d-i mirror/country string manual d-i mirror/http/hostname string at.archive.ubuntu.com d-i mirror/http/directory string /ubuntu d-i mirror/http/proxy string d-i clock-setup/utc boolean true d-i time/zone string EU/Vienna d-i clock-setup/ntp boolean true d-i clock-setup/ntp-server string at.pool.ntp.org d-i partman-auto/disk string /dev/sda d-i partman-auto/method string lvm d-i partman-lvm/device_remove_lvm boolean true d-i partman-lvm/device_remove_lvm_span boolean true d-i partman-auto/purge_lvm_from_device boolean true d-i partman-lvm/confirm boolean true d-i partman-lvm/confirm_nooverwrite boolean true d-i partman-auto-lvm/new_vg_name string vg00 d-i partman-auto/expert_recipe string \\ standard :: \\ 1024 1026 1024 ext3 \\ $primary{ } \\ $bootable{ } \\ method{ format } \\ format{ } \\ use_filesystem{ } \\ filesystem{ ext3 } \\ mountpoint{ /boot } \\ . \\ 24576 60000 -1 ext4 \\ $lvmok{ } \\ method{ format } \\ format{ } \\ use_filesystem{ } \\ filesystem{ ext4 } \\ mountpoint{ / } \\ lv_name{ lvRoot } \\ . \\ 2048 2049 300% linux-swap \\ $lvmok{ } \\ method{ swap } \\ format{ } \\ lv_name{ lvSwap } \\ . d-i partman-auto/choose_recipe standard d-i partman-auto-lvm/guided_size string max d-i partman-partitioning/confirm_write_new_label boolean true d-i partman/choose_partition select finish d-i partman/confirm boolean true d-i partman/confirm_nooverwrite boolean true d-i partman-auto/confirm boolean true #d-i passwd/root-login boolean false #d-i passwd/make-user boolean false #d-i passwd/root-password password r00tme #d-i passwd/root-password-again password r00tme d-i passwd/user-fullname string Ubuntu d-i passwd/username string ubuntu d-i passwd/user-password password ChangeMe! d-i passwd/user-password-again password ChangeMe! d-i user-setup/allow-password-weak boolean true d-i user-setup/encrypt-home boolean false d-i pkgsel/include string openssh-server update-motd tasksel tasksel/first multiselect server, openssh-server d-i pkgsel/update-policy select none d-i grub-installer/only_debian boolean true d-i grub-installer/with_other_os boolean true d-i preseed/late_command string \\ wget $HTTP_URL/$P/sources.list -O /target/etc/apt/sources.list d-i finish-install/reboot_in_progress note EOF
Regarding Partman Priority Voodo read https://www.bishnet.net/tim/blog/2015/01/29/understanding-partman-autoexpert_recipe/
install-ubuntu-18.04-pxe.txt · Last modified: 2021/05/05 07:01 by baumi