feat: generic user, dynamic paths, simplified ISO build pipeline

preseed.cfg

@@ -1,58 +1,65 @@
 # Debian Preseed — SeniorNet Kiosk
-# Silent/unattended installer configuration
+# Silent unattended Debian base install.
+# After install, downloads preseed-bootstrap.sh which installs a first-boot
+# setup wizard. On first reboot the wizard prompts for username/name,
+# installs the kiosk, then reboots into kiosk mode.
 
-# Locale and keyboard
+# ── Locale / keyboard ──────────────────────────────────────────────
 d-i debian-installer/locale string en_US.UTF-8
 d-i keyboard-configuration/xkb-keymap select us
 
-# Network
+# ── Network ────────────────────────────────────────────────────────
 d-i netcfg/choose_interface select auto
 d-i netcfg/get_hostname string kiosk
 d-i netcfg/get_domain string local
-d-i netcfg/hostname string kiosk
 
-# Mirror
+# ── Mirror ─────────────────────────────────────────────────────────
 d-i mirror/country string manual
 d-i mirror/http/hostname string deb.debian.org
 d-i mirror/http/directory string /debian
 d-i mirror/http/proxy string
 
-# Partitioning — use entire disk
-d-i partman-auto/method string lvm
-d-i partman-lvm/device_remove_lvm boolean true
-d-i partman-auto/purge_lvm_confirmation boolean true
-d-i partman-auto/disk string /dev/sda
-d-i partman-auto/choose_recipe select atomic
-d-i partman/confirm_write_new_label boolean true
-d-i partman/confirm boolean true
-
-# Clock/timezone
+# ── Clock / timezone ───────────────────────────────────────────────
 d-i time/zone string UTC
 d-i clock-setup/utc boolean true
 d-i clock-setup/ntp boolean true
 
-# Account setup — root with no password
+# ── Accounts ───────────────────────────────────────────────────────
+# Root only — install-kiosk.sh creates the kiosk user interactively.
 d-i passwd/root-login boolean true
 d-i passwd/make-user boolean false
 d-i passwd/root-password password kiosk
 d-i passwd/root-password-again password kiosk
 
-# APT
+# ── Disk — auto-detect first real disk ─────────────────────────────
+# Handles /dev/sda, /dev/nvme0n1, /dev/vda, etc.
+d-i preseed/early_command string \
+  DISK=$(ls /sys/block/ | grep -Ev '^(loop|sr|fd|ram)' | head -1); \
+  debconf-set partman-auto/disk "/dev/$DISK"; \
+  debconf-set grub-installer/bootdev "/dev/$DISK"
+
+d-i partman-auto/method string regular
+d-i partman-auto/choose_recipe select atomic
+d-i partman/confirm_write_new_label boolean true
+d-i partman/confirm boolean true
+d-i partman/confirm_nooverwrite boolean true
+
+# ── APT ────────────────────────────────────────────────────────────
 d-i apt-setup/services-select multiselect security, updates
 d-i apt-setup/security_host string security.debian.org
 
-# Package selection
+# ── Package selection ──────────────────────────────────────────────
 tasksel tasksel/first multiselect standard, ssh-server
-d-i pkgsel/include string openssh-server build-essential git curl wget
+d-i pkgsel/include string curl git
 
-# Grub bootloader
+# ── Bootloader ─────────────────────────────────────────────────────
 d-i grub-installer/only boolean true
 d-i grub-installer/bootdev string default
 
-# Finish installation
-d-i finish-install/reboot_in_background boolean true
-
-# Run post-install script
+# ── Post-install bootstrap ─────────────────────────────────────────
+# Downloads preseed-bootstrap.sh which installs the first-boot setup service.
 d-i preseed/late_command string \
-  in-target bash -c 'curl -fsSL https://gitea.jgitta.com/jgitta/senior-kiosk/raw/master/install-kiosk.sh | bash' || \
-  in-target bash -c 'cd /root && git clone https://gitea.jgitta.com/jgitta/senior-kiosk.git && bash senior-kiosk/install-kiosk.sh'
+  in-target bash -c 'curl -fsSL https://gitea.jgitta.com/jgitta/senior-kiosk/raw/branch/master/preseed-bootstrap.sh | bash'
+
+# ── Finish ─────────────────────────────────────────────────────────
+d-i finish-install/reboot_in_background boolean true