fix: onboarding "Set Password" label, reboot sequence, initramfs noise

- OnboardingDone: "Go to Login" → "Set Password" with context text
- Reboot: lazy-unmount live FS before USB removal prompt, suppress
  kernel SquashFS messages, auto-reboot after 10s countdown
- Initramfs: filter "Possible missing firmware" warnings (cosmetic)
- ISOLINUX: menu centered at bottom (VSHIFT 18, HSHIFT 32, WIDTH 18)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

image-recipe/build-auto-installer-iso.sh

@@ -2192,7 +2192,7 @@ fi
 # Regenerate initramfs — the one from Docker export is corrupt/incomplete
 # (Docker builds have limited /proc, /sys, /dev so initramfs generation fails silently)
 echo "   Regenerating initramfs..."
-chroot /mnt/target update-initramfs -u -k all
+chroot /mnt/target update-initramfs -u -k all 2>&1 | grep -v "Possible missing firmware"
 
 chroot /mnt/target update-grub
 
@@ -2483,28 +2483,28 @@ cc "${DIM}BTCPay Server, Mempool, Nostr Relay${NC}"
 echo ""
 hrule
 echo ""
-cc "${YELLOW}>>> REMOVE THE USB DRIVE NOW <<<${NC}"
-echo ""
-# Install log already saved before unmount (above)
+# Suppress kernel messages on console (SquashFS errors when USB is pulled)
+echo 1 > /proc/sys/kernel/printk 2>/dev/null || true
 
-# Eject USB BEFORE prompting — prevents SquashFS errors when user pulls drive
+# Lazy-unmount live filesystem BEFORE telling user to pull USB
 exec 2>/dev/null
-BOOT_DEV=$(findmnt -n -o SOURCE /run/archiso 2>/dev/null || findmnt -n -o SOURCE /cdrom 2>/dev/null || findmnt -n -o SOURCE /run/live/medium 2>/dev/null || echo "")
+umount -l /run/live/medium 2>/dev/null || true
+umount -l /lib/live/mount/medium 2>/dev/null || true
+umount -l /run/archiso 2>/dev/null || true
+umount -l /cdrom 2>/dev/null || true
+BOOT_DEV=$(findmnt -n -o SOURCE /run/live/medium 2>/dev/null || findmnt -n -o SOURCE /cdrom 2>/dev/null || echo "")
 if [ -n "$BOOT_DEV" ]; then
     BOOT_DISK=$(lsblk -no PKNAME "$BOOT_DEV" 2>/dev/null | head -1)
-    if [ -n "$BOOT_DISK" ]; then
-        umount -l /run/archiso 2>/dev/null || true
-        umount -l /cdrom 2>/dev/null || true
-        umount -l /run/live/medium 2>/dev/null || true
-        eject "/dev/$BOOT_DISK" 2>/dev/null || true
-    fi
+    [ -n "$BOOT_DISK" ] && eject "/dev/$BOOT_DISK" 2>/dev/null || true
 fi
 exec 2>&1
 
-cc "${DIM}Press Enter to reboot${NC}"
-read -s
+cc "${YELLOW}>>> REMOVE THE USB DRIVE <<<${NC}"
+echo ""
+cc "${DIM}Rebooting in 10 seconds...${NC}"
+sleep 10
 
-# Force reboot — avoids systemd trying to cleanly stop the (now-ejected) live FS
+# Force reboot — skips systemd clean shutdown (which fails on missing USB)
 reboot -f
 INSTALLER_SCRIPT
 
@@ -2609,10 +2609,10 @@ TIMEOUT 0
 
 MENU TITLE bitcoin node os
 MENU BACKGROUND splash.png
-MENU RESOLUTION 640 480
-MENU VSHIFT 12
-MENU HSHIFT 5
-MENU WIDTH 30
+MENU RESOLUTION 1024 768
+MENU VSHIFT 18
+MENU HSHIFT 32
+MENU WIDTH 18
 MENU MARGIN 1
 MENU ROWS 5
 MENU TABMSG press tab to edit  |  archipelago.sh

neode-ui/src/views/OnboardingDone.vue

@@ -42,12 +42,13 @@
           </div>
         </div>
 
-        <!-- Go to Login Button -->
+        <!-- Set Password Button -->
+        <p class="text-xs text-white/50 mb-3">You'll create your node password next</p>
         <button
           @click="goToLogin"
           class="path-action-button path-action-button--continue mx-auto"
         >
-          Go to Login
+          Set Password
         </button>
       </div>
     </div>