#!/bin/bash
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# Basic install script for an archlinux VM
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# To use as a basic hardware install script, remove qemu-guest-agent from pacstrap's arguments and qemu-ga from systemctl
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# Can comment out my repository if you like, I tend to use it for my VMs
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HOSTNAME=VM
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RPASS=root
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DISK=/dev/vda
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PARTNO=1
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LOCALE=en_US.UTF-8
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TIMEZONE=UTC # location in zoneinfo, e.g. Australia/Melbourne
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# Partition disk will create a new partition on the rest of the empty free space
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printf "n\np\n\n\n\nw\n" | fdisk $DISK
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mkfs.btrfs "$DISK$PARTNO"
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# Mount and install
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mount -o compress=zstd "$DISK$PARTNO" /mnt
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pacstrap /mnt base linux linux-firmware grub dhcpcd vim qemu-guest-agent btrfs-progs
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genfstab -U /mnt >> /mnt/etc/fstab
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# Setup locale
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arch-chroot /mnt ln -sf /usr/share/zoneinfo/$TIMEZONE /etc/localtime
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sed -i -e "s/#$LOCALE/$LOCALE/" /mnt/etc/locale.gen
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arch-chroot /mnt locale-gen
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echo "LANG=$LOCALE" > /mnt/etc/locale.conf
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# Set hostname and make hosts file
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echo $HOSTNAME > /mnt/etc/hostname
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printf "127.0.0.1\tlocalhost\n::1\t\tlocalhost\n127.0.1.1\t$HOSTNAME.localdomain $HOSTNAME" > /mnt/etc/hosts
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# Enable networking on boot and qemu guest agent
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arch-chroot /mnt systemctl enable dhcpcd qemu-ga
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# Make boot files and setup grub
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arch-chroot /mnt mkinitcpio -P
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arch-chroot /mnt sh -c "echo root:$RPASS | chpasswd"
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sed -i "s/GRUB_TIMEOUT=\d*/GRUB_TIMEOUT=\"0\"/" /mnt/etc/default/grub
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arch-chroot /mnt grub-install $DISK
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arch-chroot /mnt grub-mkconfig -o /boot/grub/grub.cfg
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# Add my repo to pacman.conf
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printf "[Chizi123]\nSigLevel = Optional TrustAll\nServer = https://repo.joelg.cf/x86_64\n" >> /mnt/etc/pacman.conf
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reboot
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