Files
void-installer/installer/lib/postinstall.sh

352 lines
10 KiB
Bash
Executable File

#!/bin/bash
# Post-install configuration:
# - hostname / locale / keyboard / timezone / hwclock
# - users (root + moze) + sudo
# - services (NetworkManager, lightdm, dbus, polkitd, docker, bluetoothd,
# acpid, tlp, sshd[disabled], dhcpcd[disabled in favor of NM])
# - zram swap (zramen)
# - NVIDIA PRIME render-offload setup
# - SSH config copy
# - Nix bootstrap (nix-daemon service + first-boot user package install)
# shellcheck source=common.sh
source "$(dirname "${BASH_SOURCE[0]}")/common.sh"
configure_system() {
step "System configuration"
local TARGET="${TARGET:-/mnt}"
# ----- hostname -----
echo "$HOSTNAME" > "$TARGET/etc/hostname"
cat > "$TARGET/etc/hosts" <<EOF
127.0.0.1 localhost
::1 localhost
127.0.1.1 $HOSTNAME.localdomain $HOSTNAME
EOF
# ----- rc.conf -----
cat > "$TARGET/etc/rc.conf" <<EOF
KEYMAP="$KEYMAP"
HARDWARECLOCK="$HARDWARECLOCK"
TIMEZONE="$TIMEZONE"
EOF
# ----- timezone (also create symlink for systems checking it) -----
run_chroot "ln -sf /usr/share/zoneinfo/$TIMEZONE /etc/localtime"
# ----- locales (glibc) -----
if [[ -f "$TARGET/etc/default/libc-locales" ]]; then
sed -i "s/^#\($LOCALE.*\)/\1/" "$TARGET/etc/default/libc-locales"
run_chroot "xbps-reconfigure -f glibc-locales"
fi
cat > "$TARGET/etc/locale.conf" <<EOF
LANG=$LANG
LC_ALL=$LANG
EOF
# ----- vconsole (for early TTY keymap) -----
cat > "$TARGET/etc/vconsole.conf" <<EOF
KEYMAP=$KEYMAP
EOF
ok "locale / keymap / tz configured"
}
configure_users() {
step "Creating users"
local TARGET="${TARGET:-/mnt}"
# ----- root password (chpasswd via stdin — no shell expansion of $) -----
set_chroot_password root "$ROOT_PASSWORD"
# ----- ensure groups exist -----
run_chroot "groupadd -f docker"
run_chroot "groupadd -f plugdev"
# ----- create user (idempotent: tolerate 'already exists', fail on real errors) -----
if ! run_chroot "id -u $USERNAME >/dev/null 2>&1"; then
run_chroot "useradd -m -u $USER_UID -G $USER_GROUPS -s $DEFAULT_SHELL -c '$USER_FULLNAME' $USERNAME"
else
log "user $USERNAME already exists — skipping useradd"
run_chroot "usermod -G $USER_GROUPS -s $DEFAULT_SHELL $USERNAME"
fi
set_chroot_password "$USERNAME" "$USER_PASSWORD"
# ----- sudoers: wheel group -----
mkdir -p "$TARGET/etc/sudoers.d"
if [[ "${TEST_MODE:-0}" == "1" ]]; then
# Test harness needs passwordless sudo to run smoke checks via SSH.
cat > "$TARGET/etc/sudoers.d/10-wheel" <<'EOF'
%wheel ALL=(ALL:ALL) NOPASSWD: ALL
Defaults env_keep += "EDITOR"
EOF
else
cat > "$TARGET/etc/sudoers.d/10-wheel" <<'EOF'
%wheel ALL=(ALL:ALL) ALL
Defaults env_keep += "EDITOR"
EOF
fi
chmod 440 "$TARGET/etc/sudoers.d/10-wheel"
ok "user '$USERNAME' created and added to: $USER_GROUPS"
}
configure_ssh_config() {
step "Installing SSH config for $USERNAME"
local TARGET="${TARGET:-/mnt}"
local src="$SSH_SOURCE_DIR"
local dst="$TARGET/home/$USERNAME/$SSH_TARGET_DIR_REL"
if [[ ! -d "$src" ]]; then
warn "no SSH source dir at $src — skipping"
return 0
fi
install -d -m 0700 "$dst"
cp -a "$src"/. "$dst/"
# Tighten perms.
find "$dst" -type d -exec chmod 700 {} +
find "$dst" -type f -exec chmod 600 {} +
find "$dst" -type f -name '*.pub' -exec chmod 644 {} +
[[ -f "$dst/known_hosts" ]] && chmod 644 "$dst/known_hosts"
[[ -f "$dst/known_hosts.old" ]] && chmod 644 "$dst/known_hosts.old"
[[ -f "$dst/config" ]] && chmod 600 "$dst/config"
run_chroot "chown -R $USERNAME:$USERNAME /home/$USERNAME/$SSH_TARGET_DIR_REL"
ok "SSH config installed at /home/$USERNAME/$SSH_TARGET_DIR_REL"
}
configure_nvidia_prime() {
step "Configuring NVIDIA PRIME render-offload"
local TARGET="${TARGET:-/mnt}"
# 1) Xorg config: Intel as primary, NVIDIA as PRIME provider.
install -d -m 0755 "$TARGET/etc/X11/xorg.conf.d"
cat > "$TARGET/etc/X11/xorg.conf.d/10-intel.conf" <<'EOF'
Section "OutputClass"
Identifier "intel"
MatchDriver "i915"
Driver "modesetting"
EndSection
EOF
cat > "$TARGET/etc/X11/xorg.conf.d/20-nvidia.conf" <<'EOF'
Section "OutputClass"
Identifier "nvidia"
MatchDriver "nvidia-drm"
Driver "nvidia"
Option "AllowEmptyInitialConfiguration"
Option "PrimaryGPU" "no"
ModulePath "/usr/lib/nvidia/xorg"
ModulePath "/usr/lib/xorg/modules"
EndSection
EOF
# 2) Modules to load early for KMS.
install -d -m 0755 "$TARGET/etc/modules-load.d"
cat > "$TARGET/etc/modules-load.d/nvidia.conf" <<'EOF'
nvidia
nvidia_modeset
nvidia_uvm
nvidia_drm
EOF
# 3) Wrapper script + desktop file: run any app on NVIDIA via `prime-run`.
install -d -m 0755 "$TARGET/usr/local/bin"
cat > "$TARGET/usr/local/bin/prime-run" <<'EOF'
#!/bin/sh
# Run a program on the NVIDIA dGPU via PRIME render offload.
exec env __NV_PRIME_RENDER_OFFLOAD=1 \
__VK_LAYER_NV_optimus=NVIDIA_only \
__GLX_VENDOR_LIBRARY_NAME=nvidia \
"$@"
EOF
chmod 0755 "$TARGET/usr/local/bin/prime-run"
# 4) Make sure dracut picks up nvidia modules.
install -d -m 0755 "$TARGET/etc/dracut.conf.d"
cat > "$TARGET/etc/dracut.conf.d/10-nvidia.conf" <<'EOF'
add_drivers+=" nvidia nvidia_modeset nvidia_uvm nvidia_drm "
EOF
ok "NVIDIA PRIME offload configured (use 'prime-run <app>')"
}
configure_zram() {
[[ "${ZRAM_ENABLE:-yes}" == "yes" ]] || return 0
step "Configuring zram (zramen)"
local TARGET="${TARGET:-/mnt}"
install -d -m 0755 "$TARGET/etc/default"
cat > "$TARGET/etc/default/zramen" <<EOF
ALGO=zstd
PERCENT=$ZRAM_SIZE_PCT
PRIORITY=100
EOF
ok "zram configured at $ZRAM_SIZE_PCT% RAM"
}
configure_nix() {
[[ "${ENABLE_NIX:-yes}" == "yes" ]] || return 0
step "Configuring nix multi-user (daemon mode)"
local TARGET="${TARGET:-/mnt}"
# Void's `nix` xbps package installs to /usr and ships a runit service.
install -d -m 0755 "$TARGET/etc/nix"
cat > "$TARGET/etc/nix/nix.conf" <<'EOF'
experimental-features = nix-command flakes
build-users-group = nixbld
auto-optimise-store = true
sandbox = true
EOF
# First-boot script: as $USERNAME, install user packages.
install -d -m 0755 "$TARGET/usr/local/libexec"
cat > "$TARGET/usr/local/libexec/first-boot-nix.sh" <<EOF
#!/bin/bash
set -e
mark=/var/lib/first-boot-nix.done
[[ -f "\$mark" ]] && exit 0
# Wait for nix-daemon to be available.
# The Void package puts the socket at /var/nix/daemon-socket/nix-daemon.sock
# (NOT /nix/var/nix/...).
for _ in \$(seq 1 30); do
[[ -S /var/nix/daemon-socket/nix-daemon.sock ]] && break
sleep 1
done
if [[ ! -S /var/nix/daemon-socket/nix-daemon.sock ]]; then
echo "nix-daemon not available; aborting first-boot nix install" >&2
exit 0
fi
su - $USERNAME -c '
set -e
. /etc/profile.d/nix.sh 2>/dev/null || true
# google-chrome / spotify / discord are unfree -> need allow-unfree + --impure.
export NIXPKGS_ALLOW_UNFREE=1
nix profile install --impure ${NIX_USER_PACKAGES[*]} || true
'
mkdir -p "\$(dirname "\$mark")"
touch "\$mark"
EOF
chmod 0755 "$TARGET/usr/local/libexec/first-boot-nix.sh"
# runit one-shot service.
install -d -m 0755 "$TARGET/etc/sv/first-boot-nix"
cat > "$TARGET/etc/sv/first-boot-nix/run" <<'EOF'
#!/bin/sh
exec 2>&1
/usr/local/libexec/first-boot-nix.sh
exec chpst -b first-boot-nix pause
EOF
chmod 0755 "$TARGET/etc/sv/first-boot-nix/run"
cat > "$TARGET/etc/sv/first-boot-nix/finish" <<'EOF'
#!/bin/sh
sv down first-boot-nix
EOF
chmod 0755 "$TARGET/etc/sv/first-boot-nix/finish"
ok "Nix configured; user packages will install on first boot"
}
install_vscode_real() {
# Install official Microsoft VS Code (the real proprietary build), NOT the
# `vscode` xbps package which is actually code-oss and ships `code-oss`.
step "Installing official Microsoft VS Code"
local TARGET="${TARGET:-/mnt}"
local url="https://update.code.visualstudio.com/latest/linux-x64/stable"
local tmp="$TARGET/tmp/vscode.tar.gz"
install -d -m 0755 "$TARGET/opt" "$TARGET/usr/local/bin"
if ! run_chroot "curl -fsSL --retry 3 -o /tmp/vscode.tar.gz '$url'"; then
warn "failed to download VS Code; skipping (install manually later)"
rm -f "$tmp"
return 0
fi
# Tarball extracts to VSCode-linux-x64/. Move it to /opt/vscode.
rm -rf "$TARGET/opt/vscode"
if ! run_chroot "tar -xzf /tmp/vscode.tar.gz -C /opt && mv /opt/VSCode-linux-x64 /opt/vscode"; then
warn "failed to extract VS Code tarball; skipping"
rm -f "$tmp"
return 0
fi
rm -f "$tmp"
# `code` shim on PATH.
ln -sf /opt/vscode/bin/code "$TARGET/usr/local/bin/code"
# Desktop entry so it shows up in the Cinnamon menu.
install -d -m 0755 "$TARGET/usr/local/share/applications"
cat > "$TARGET/usr/local/share/applications/code.desktop" <<'EOF'
[Desktop Entry]
Name=Visual Studio Code
Comment=Code Editing. Redefined.
GenericName=Text Editor
Exec=/opt/vscode/bin/code %F
Icon=/opt/vscode/resources/app/resources/linux/code.png
Type=Application
StartupNotify=false
StartupWMClass=Code
Categories=TextEditor;Development;IDE;
MimeType=text/plain;inode/directory;application/x-code-workspace;
Actions=new-empty-window;
Keywords=vscode;
[Desktop Action new-empty-window]
Name=New Empty Window
Exec=/opt/vscode/bin/code --new-window %F
Icon=/opt/vscode/resources/app/resources/linux/code.png
EOF
ok "VS Code installed at /opt/vscode (use 'code' on PATH)"
}
enable_services() {
step "Enabling services (runit)"
local TARGET="${TARGET:-/mnt}"
local svdir="$TARGET/etc/runit/runsvdir/default"
install -d -m 0755 "$svdir"
local svc
local enabled=(
dbus
NetworkManager
lightdm
polkitd
docker
bluetoothd
acpid
tlp
elogind
chronyd
nix-daemon
first-boot-nix
zramen
cupsd
cups-browsed
)
[[ "${SSHD_ENABLE:-no}" == "yes" ]] && enabled+=(sshd)
for svc in "${enabled[@]}"; do
if [[ -d "$TARGET/etc/sv/$svc" ]]; then
ln -sf "/etc/sv/$svc" "$svdir/$svc"
log "enabled $svc"
else
warn "no service dir /etc/sv/$svc — skipping"
fi
done
# Disable dhcpcd if it's there (NetworkManager handles it).
rm -f "$svdir/dhcpcd" 2>/dev/null || true
ok "services enabled"
}
reconfigure_all() {
step "Reconfiguring all packages (initramfs + grub artifacts)"
run_chroot "xbps-reconfigure -fa"
ok "reconfigure complete"
}