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omarchy-iso/configs/airootfs/root/.automated_script.sh
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David Heinemeier HanssonandClaude Fable 5 0339b13d12 Join the tailnet from a cidata tailscale_authkey (#97)
* Join the tailnet from a cidata tailscale_authkey

A tailscale_authkey file on the autoinstall drive gets the installed
machine onto the tailnet on its own: the tailscale package is bundled in
the offline mirror and installed only when the key is present, the key is
staged root-only at /etc/tailscale/authkey, and a oneshot first-boot unit
runs tailscale up once the network is really there. On success the key is
deleted and the unit disables itself; on failure both survive to retry on
the next boot, so an offline install joins whenever it first gets
connectivity. ufw allows traffic in on tailscale0 via the same
write-the-rule-then-ignore-the-chroot-exit-code dance as the SSH phase.

Bundling rather than fetching at first boot is deliberate: pacman -Sy
tailscale on a fresh machine is a partial upgrade, and pacman -Syu means
an unattended full system upgrade racing the user's first login. The
offline mirror is a coherent snapshot; installing from it keeps the
target consistent and the install offline-capable. See plans/tailscale.md.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Xc74h4WSYpuYPGuYbFAR1q

* Do not hold boot hostage for the tailnet join

Review caught that the join unit was Type=oneshot wanted by
multi-user.target: target units implicitly gain After= for their Wants=,
so an offline machine's boot -- SDDM included -- stalled for the full
10-minute timeout, and once timed out the join never retried within that
boot. Type=simple counts as started the moment it forks, so boot proceeds
while the join retries in the background for as long as the boot lasts.
Cleanup moves inside the script, sequenced after tailscale up succeeds,
which preserves the retry-across-boots behavior: key and unit survive a
boot with no connectivity, and the key never outlives a successful join.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Xc74h4WSYpuYPGuYbFAR1q

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-08-07 15:10:30 +02:00

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#!/usr/bin/env bash
#
# Live ISO entry point on tty1: set up the live VT, run the configurator
# wizard, then hand off to the Python install orchestrator. Mirrors the
# stream/env contract from the previously-working installer:
# - stdout teed to /var/log/omarchy-install.log (CSI-stripped) AND to tty
# - stderr direct to /dev/tty so gum (which draws its TUI on stderr)
# renders correctly
# - CLICOLOR_FORCE/FORCE_COLOR so gum emits ANSI even with stdout piped
# - COLUMNS/LINES so gum picks up real terminal size
set -euo pipefail
[[ $(tty) == /dev/tty1 ]] || exit 0
export OMARCHY_MIRROR="$(cat /root/omarchy_mirror)"
if [[ -f /root/omarchy_iso_ref ]]; then
export OMARCHY_ISO_REF="$(cat /root/omarchy_iso_ref)"
fi
if [[ -f /usr/share/omarchy-iso/package-targets ]]; then
# shellcheck disable=SC1091
source /usr/share/omarchy-iso/package-targets
export OMARCHY_RUNTIME_PACKAGE OMARCHY_SETTINGS_PACKAGE OMARCHY_NVIM_PACKAGE
fi
export OMARCHY_PATH=/usr/share/omarchy
export OMARCHY_INSTALL=$OMARCHY_PATH/install
export OMARCHY_INSTALL_LOG_FILE=/var/log/omarchy-install.log
if [[ -f /usr/share/omarchy-iso/install-debug ]]; then
export OMARCHY_INSTALL_DEBUG=1
fi
# Tokyo Night palette so the live VT matches the installed look.
set_tokyo_night_colors() {
echo -en "\e]P01a1b26"; echo -en "\e]P1f7768e"; echo -en "\e]P29ece6a"
echo -en "\e]P3e0af68"; echo -en "\e]P47aa2f7"; echo -en "\e]P5bb9af7"
echo -en "\e]P67dcfff"; echo -en "\e]P7a9b1d6"; echo -en "\e]P8414868"
echo -en "\e]P9f7768e"; echo -en "\e]PA9ece6a"; echo -en "\e]PBe0af68"
echo -en "\e]PC7aa2f7"; echo -en "\e]PDbb9af7"; echo -en "\e]PE7dcfff"
echo -en "\e]PFc0caf5"
echo -en "\033[0m"
clear
}
set_tokyo_night_colors
mkdir -p /var/log
touch "$OMARCHY_INSTALL_LOG_FILE"
export COLUMNS=$(tput cols)
export LINES=$(tput lines)
exec > >(tee >(sed -u 's/\x1b\[[0-9;?]*[A-Za-z]//g' >>"$OMARCHY_INSTALL_LOG_FILE") 2>/dev/null) 2>/dev/tty
export CLICOLOR_FORCE=1
export FORCE_COLOR=1
if [[ ${OMARCHY_INSTALL_DEBUG:-} == "1" ]]; then
echo "=== Omarchy ISO debug build ==="
[[ -f /usr/share/omarchy-iso/build-info ]] && cat /usr/share/omarchy-iso/build-info
pacman -Q omarchy-settings omarchy-keyring 2>/dev/null || true
echo "================================"
fi
# Warm the page cache for the bundled packages while the user works through the
# wizard. The install reads ~3GB out of the offline mirror, and pacman consumes
# it at only ~33MB/s, so on media slower than that the install is read-bound and
# every byte cached here is a byte it never waits for. On faster media this costs
# nothing but otherwise-idle bandwidth: the medium is untouched while the user
# types, and the target disk it writes to later is a different device.
#
# Clean page cache only, so the kernel reclaims it under pressure instead of
# OOMing, and a budget so small machines never evict what was just warmed.
# Set OMARCHY_NO_PREFETCH=1 to A/B the same ISO with this disabled.
warm_offline_mirror() {
local mirror=/var/cache/omarchy/mirror/offline
local budget_kb spent_kb=0 size_kb path
[[ ${OMARCHY_NO_PREFETCH:-} == 1 ]] && return 0
[[ -d $mirror ]] || return 0
budget_kb=$(($(awk '/^MemAvailable:/ { print $2 }' /proc/meminfo) / 2))
((budget_kb > 262144)) || return 0
# Largest first: the install reads most of the mirror, so when the budget
# cannot cover all of it this still front-loads the bytes that dominate.
while read -r size_kb path; do
((spent_kb + size_kb > budget_kb)) && continue
cat -- "$path" >/dev/null 2>&1 || true
spent_kb=$((spent_kb + size_kb))
done < <(du -k "$mirror"/*.pkg.tar.zst 2>/dev/null | sort -rn)
}
warm_offline_mirror &
warm_pid=$!
trap 'kill "$warm_pid" 2>/dev/null' EXIT
cd /root
# Autoinstall: a cidata drive carrying the configurator's own output files
# stands in for the wizard. omarchy-cidata-load copies them into /root and
# everything downstream runs the ordinary path against ordinary inputs.
if /usr/local/bin/omarchy-cidata-load; then
echo "Autoinstall configuration found on cidata drive; skipping the configurator."
export OMARCHY_UI_INTERACTIVE=no
else
./configurator
fi
# The foreground dashboard is now the sole visible install UI owner. It starts
# the actual installer as a non-interactive child, logs child output, waits for
# completion, then renders the final installed-time/reboot prompt itself.
export OMARCHY_DASHBOARD_TTY="$(tty)"
rm -f /run/omarchy-install/state.json
/usr/local/bin/omarchy-install-dashboard \
"$OMARCHY_INSTALL_LOG_FILE" \
/run/omarchy-install/state.json \
-- \
/usr/local/bin/omarchy-iso-install \
--config /root/user_configuration.json \
--creds /root/user_credentials.json \
--full-name-file /root/user_full_name.txt \
--email-file /root/user_email_address.txt \
--encrypt-file /root/user_encrypt_installation.txt \
--authorized-keys-file /root/authorized_keys \
--tailscale-authkey-file /root/tailscale_authkey