diff --git a/iso/build-profile/profiledef.sh b/iso/build-profile/profiledef.sh
index 0297a8f..4e466f8 100644
--- a/iso/build-profile/profiledef.sh
+++ b/iso/build-profile/profiledef.sh
@@ -8,8 +8,7 @@ iso_application="TANINUX (camel) — niri/eww desktop · live + Calamares instal
 iso_version="$(date +%Y.%m.%d)"
 install_dir="tanin"
 buildmodes=('iso')
-bootmodes=('bios.syslinux.mbr' 'bios.syslinux.eltorito'
-           'uefi-x64.systemd-boot.esp' 'uefi-x64.systemd-boot.eltorito')
+bootmodes=('bios.syslinux' 'uefi.systemd-boot')
 arch="x86_64"
 pacman_conf="pacman.conf"
 airootfs_image_type="squashfs"
diff --git a/iso/out/taninux-2026.06.20-x86_64.iso b/iso/out/taninux-2026.06.20-x86_64.iso
index 75a1756..ed0e8f0 100644
Binary files a/iso/out/taninux-2026.06.20-x86_64.iso and b/iso/out/taninux-2026.06.20-x86_64.iso differ
diff --git a/iso/overrides/airootfs/etc/calamares/modules/shellprocess-striplive.conf b/iso/overrides/airootfs/etc/calamares/modules/shellprocess-striplive.conf
index fe4e890..28802d8 100644
--- a/iso/overrides/airootfs/etc/calamares/modules/shellprocess-striplive.conf
+++ b/iso/overrides/airootfs/etc/calamares/modules/shellprocess-striplive.conf
@@ -9,3 +9,4 @@ script:
 - "rm -f /root/.zprofile"
 - "rm -f /usr/local/bin/tanin-installer"
 - "systemctl set-default graphical.target"
+- "systemctl disable seatd.service"
diff --git a/iso/overrides/airootfs/root/customize_airootfs.sh b/iso/overrides/airootfs/root/customize_airootfs.sh
index 0ddc3e5..38d80c8 100755
--- a/iso/overrides/airootfs/root/customize_airootfs.sh
+++ b/iso/overrides/airootfs/root/customize_airootfs.sh
@@ -14,6 +14,9 @@ pacman-key --lsign-key 63F0415879323F6BFE0FBFB2B6FDF356206AF4F6
 
 # --- services in the LIVE image ---
 systemctl enable NetworkManager.service
+# seat manager for cage (the getty-autologin root session has no logind seat).
+systemctl enable seatd.service
+gpasswd -a root seat 2>/dev/null || true
 # Live boots to a console on tty1 that auto-launches the installer (cage +
 # calamares) via getty autologin + /root/.bash_profile. No display-manager.
 systemctl set-default multi-user.target
diff --git a/iso/overrides/packages.x86_64 b/iso/overrides/packages.x86_64
index 70f03cd..a1c5a3e 100644
--- a/iso/overrides/packages.x86_64
+++ b/iso/overrides/packages.x86_64
@@ -23,6 +23,11 @@ plymouth
 # (rebuild via finish-tanin-repo.sh / the calamares one-liner in BUILD.md).
 cage
 calamares
+# seatd: cage/wlroots needs a seat; the getty-autologin has no logind seat, so
+# run seatd (disabled on the target — greetd uses logind there).
+seatd
+# qt6-wayland: calamares (Qt) needs the wayland platform plugin to run under cage
+qt6-wayland
 
 # resolve provider prompts non-interactively (mkarchiso can't answer them):
 # audio -> pipewire's JACK (matches the pipewire stack); netfilter -> iptables(-nft)