Howto create own archlinux distro

configure os

download latest archlinux cloud image:

wget https://linuximages.de/openstack/arch/arch-openstack-LATEST-image-bootstrap.qcow2

make sure we have libguestfs installed:

pacman -S libguestfs guestfs-tools

resize image:

cp arch-openstack-LATEST-image-bootstrap.qcow2 arch-openstack-LATEST-image-bootstrap_100G.qcow2
qemu-img resize arch-openstack-LATEST-image-bootstrap_100G.qcow2 +99G

expand image:

virt-resize --expand /dev/sda1 arch-openstack-LATEST-image-bootstrap.qcow2 arch-openstack-LATEST-image-bootstrap_100G.qcow2

change password:

virt-sysprep -a arch-openstack-LATEST-image-bootstrap_100G.qcow2 -q --root-password password:vidalinux

uninstall cloud-init:

virt-sysprep -a arch-openstack-LATEST-image-bootstrap_100G.qcow2 --run-command "pacman -R cloud-init --noconfirm"

on centos copy the image to this directory:

cd /var/lib/libvirt/images/

mount image:

qemu-nbd -c /dev/nbd0 arch-openstack-LATEST-image-bootstrap_100G.qcow2 
kpartx -a /dev/nbd0
mkdir /mnt/archlive
mount /dev/mapper/nbd0p1 /mnt/archlive
mount -o bind /dev /mnt/archlive/dev
mount -o bind /proc /mnt/archlive/proc

enter enviroment with arch-chroot:

arch-chroot /mnt/archlive

initialize the pacman keyring and populate signing keys:

pacman-key --init
pacman-key --populate archlinux

configure /etc/hosts:

cat > /etc/hosts << EOF
127.0.0.1 localhost
10.44.1.44 archlive
EOF

edit /etc/ssh/sshd_config:

sed -i 's/#PasswordAuthentication yes/PasswordAuthentication yes/g' /etc/ssh/sshd_config
sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/g' /etc/ssh/sshd_config

enable sshd service:

systemctl enable sshd 

configure hostname:

echo "archlive" > /etc/hostname

configure timezone:

ln -s /usr/share/zoneinfo/America/Puerto_Rico /etc/localtime

stop and disable systemd-resolved:

systemctl disable systemd-resolved

nameserver configuration:

rm /etc/resolv.conf
echo "nameserver 4.2.2.1" > /etc/resolv.conf
echo "nameserver 4.2.2.2" >> /etc/resolv.conf

update entire os:

pacman -Syuu --noconfirm

install packages:

pacman -Sy --noconfirm vim screen nano net-tools bind-tools networkmanager ethtool wget unzip socat gptfdisk lvm2 git

configure networkmanager:

cat > /root/net << EOF
systemctl start NetworkManager && systemctl enable NetworkManager
nmcli con del eth0
nmcli con del Wired\ connection\ 1
nmcli con add con-name eth0 ipv4.method manual type ethernet ifname eth0 ipv4.addresses 10.44.1.44/24 ipv4.gateway 10.44.1.1 ipv4.dns 4.2.2.1,4.2.2.2 autoconnect yes
EOF

install chrony:

pacman -S chrony --noconfirm

enable and start chrony:

systemctl enable chronyd

exit chroot:

exit

umount qcow2 image:

umount /mnt/archlive/proc
umount /mnt/archlive/dev
umount /mnt/archlive 
nbd-client -d /dev/nbd0
dmsetup remove /dev/mapper/nbd0p1

enable chaotic repo

install chaotic repo:

pacman-key --recv-key 3056513887B78AEB --keyserver keyserver.ubuntu.com
pacman-key --lsign-key 3056513887B78AEB
pacman -U --noconfirm 'https://cdn-mirror.chaotic.cx/chaotic-aur/chaotic-keyring.pkg.tar.zst' \
'https://cdn-mirror.chaotic.cx/chaotic-aur/chaotic-mirrorlist.pkg.tar.zst'

run the following command to add chaotic repo to /etc/pacman.conf:

cat >> /etc/pacman.conf << EOF
[chaotic-aur]
Include = /etc/pacman.d/chaotic-mirrorlist
EOF

install yay:

pacman -Sy yay --noconfirm

configure archiso

install archiso:

pacman -S archiso-git --noconfirm

copy releng directory:

cp -rf /usr/share/archiso/configs/releng/ /root/archlive

retreive the following packages file from vidalinux repo:

cd /root/archlive
cp packages.x86_64 packages.x86_64.default
wget -O packages.x86_64

enable services at boot:

cp /usr/lib/systemd/system/NetworkManager.service /usr/lib/systemd/system/graphical.target
cp /usr/lib/systemd/system/graphical.target /usr/lib/systemd/system/graphical.target
cp /usr/lib/systemd/system/gdm.service /root/archlive/airootfs/etc/systemd/system/

set hostname:

echo "archlive" > /root/archlive/airootfs/etc/hostname

set localtime:

cp /usr/share/zoneinfo/America/Puerto_Rico /root/archlive/airootfs/etc/localtime

configure sudo:

mkdir /root/archlive/airootfs/etc/sudoers.d/

cat > /root/archlive/airootfs/etc/sudoers.d/wheel << EOF
%wheel ALL=(ALL) ALL
Defaults timestamp_timeout = 0
EOF

add user:

echo "archlive:x:1000:1000::/home/archlive:/bin/bash" >> /root/archlive/airootfs/etc/passwd
echo "archlive::14871::::::" >> /root/archlive/airootfs/etc/shadow

add user to groups:

cat >> /root/archlive/airootfs/etc/gshadow << EOF
root:::root
sys:!!::archlive
network:!!::archlive
power:!!::archlive
adm:!!::archlive
wheel:!!::archlive
uucp:!!::archlive
optical:!!::archlive
rfkill:!!::archlive
video:!!::archlive
storage:!!::archlive
audio:!!::archlive
users:!!::archlive
nopasswdlogin:!::archlive
autologin:!::archlive
archlive:!::
EOF

set automatic desktop user login:

mkdir /root/archlive/airootfs/etc/gdm

cat >> /root/archlive/airootfs/etc/gdm/custom.conf << EOF
[daemon]
AutomaticLoginEnable=True
AutomaticLogin=archlive
EOF

set default locale:

cat > /root/archlive/airootfs/etc/pacman.d/hooks/40-locale-gen.hook << EOF
[Trigger]
Operation = Install
Type = Package
Target = glibc  

[Action]
Description = Uncommenting en_US.UTF-8 locale and running locale-gen
When = PostTransaction
Depends = glibc
Depends = sed
Depends = sh
Exec = /bin/sh -c "sed -i 's/#\(en_US\.UTF-8\)/\1/' /etc/locale.gen && locale-gen"
EOF

add polkit rule:

mkdir /root/archlive/airootfs/etc/polkit-1/rules.d/ -p

cat >> /root/archlive/airootfs/etc/polkit-1/rules.d/ << EOF
/* Allow members of the wheel group to execute any actions
* without password authentication, similar to "sudo NOPASSWD:"
*/
polkit.addRule(function(action, subject) {
   if (subject.isInGroup("wheel")) {
        return polkit.Result.YES;
   }
});
EOF