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feat: assemble an installable Gentoo live image in an exported rootfs

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2026-10-13 04:32:18 +03:00
parent 38914cf67f
commit 0f71430b8e
32 changed files with 874 additions and 10 deletions
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image/configure-rootfs.sh
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#!/bin/bash
set -euo pipefail
if [[ $# != 1 || "$1" != /hydra-output/rootfs ]]; then
echo "configure-rootfs: expected the isolated /hydra-output/rootfs export" >&2
exit 1
fi
root=$1
python3 /hydra-source/hydra/image.py configure "$root" --source /hydra-source
for group in wheel kvm video render audio; do
chroot "$root" getent group "$group" >/dev/null || chroot "$root" groupadd -r "$group"
done
if ! chroot "$root" getent passwd hydra-live >/dev/null; then
chroot "$root" useradd --uid 1000 --create-home --home-dir /home/hydra-live --shell /bin/bash --groups wheel,kvm,video,render,audio hydra-live
fi
chroot "$root" usermod --lock hydra-live
chroot "$root" usermod --lock root
chroot "$root" locale-gen
ln -snf /usr/share/zoneinfo/Europe/Moscow "$root/etc/localtime"
# Enable the ordinary per-user sound services without starting a user manager.
systemctl --root="$root" --global enable pipewire.socket wireplumber.service
# Set rootfs permissions now; capabilities are regenerated in the boot namespace.
chroot "$root" chown root:kvm /usr/libexec/qemu-bridge-helper
chroot "$root" chmod 0750 /usr/libexec/qemu-bridge-helper
chroot "$root" visudo --check
systemctl --root="$root" enable NetworkManager.service greetd.service hydra-network.service hydra-dnsmasq.service hydra-bridge-permissions.service getty@tty2.service serial-getty@ttyS0.service
systemctl --root="$root" set-default graphical.target
# This is a separate rootfs inside the assembly container, never the host root.
mount --bind /dev "$root/dev"
mount -t proc proc "$root/proc"
mount --bind /sys "$root/sys"
trap 'umount "$root/sys" "$root/proc" "$root/dev"' EXIT
kernel=$(python3 /hydra-source/hydra/image.py kernel "$root")
chroot "$root" dracut --force --no-hostonly --no-hostonly-cmdline --conf /etc/hydra/live-mode/dracut.conf --confdir /etc/hydra/live-mode/dracut.conf.d --add dmsquash-live /boot/initramfs-live.img "$kernel"