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v0.5.13: omit plymouth from dracut + regen initramfs

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v0.5.12 added /dev/null symlinks for plymouth services on real root.
Boot test confirmed plymouth STILL starts: it lives in initramfs
(dracut module 90plymouth) which has its own bundled service files,
unaffected by /etc/systemd/system/ masks on the installed btrfs.

Two-layer fix:
1. /etc/dracut.conf.d/99-veilor-no-plymouth.conf:
   omit_dracutmodules+=" plymouth "
   Then `dracut -f --kver $kver` to regenerate initramfs sans plymouth.
2. Keep /dev/null symlinks for post-pivot real-root masking.

Result: LUKS prompt rendered as text by systemd-tty-ask-password-agent
on tty1 — sendkey-friendly, hardware-realistic.
This commit is contained in:
veilor-org 2026-05-03 10:10:46 +01:00
parent d97a49df32
commit 20929f71c1
1 changed files with 28 additions and 8 deletions
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36
overlay/usr/local/bin/veilor-installer
View file

@ -501,14 +501,34 @@ bash $REPO/scripts/selinux/build-policy.sh || echo "[WARN] SELinux build failed;
# Apply KDE theme + DuckSans + os-release branding
bash $REPO/scripts/kde-theme-apply.sh
# Mask plymouth services. Plymouth boot splash is unreliable in QEMU
# (race between plymouth-start and systemd-ask-password-plymouth.path
# leaves LUKS prompt invisible → boot hangs in dracut-initqueue).
# `systemctl mask` requires systemd running, which isn't true in
# anaconda chroot %post — write the /dev/null symlinks directly instead.
# Targets the path-activated ask-password unit too (the .path is what
# plymouth-start gets pulled in by). systemd-tty-ask-password-agent
# handles LUKS prompt as fallback on tty1.
# Disable plymouth at TWO layers:
#
# 1. Initramfs (the boot stage where LUKS unlock happens). Plymouth is
# a dracut module; masking units in /etc/systemd/ has zero effect
# here because dracut bundles its own copies into initramfs/.
# Solution: omit_dracutmodules in dracut.conf.d, then regenerate
# initramfs so the new config takes effect.
#
# 2. Real root (post-pivot, before SDDM). /dev/null symlinks mask all
# plymouth services + the path-activated ask-password unit so they
# never start when systemd is up.
#
# After both, LUKS prompt falls back to systemd-tty-ask-password-agent
# on tty1 — text "Please enter passphrase for disk... :" — works in
# QEMU sendkey AND on real hardware.
# Layer 1: initramfs
mkdir -p /etc/dracut.conf.d
cat > /etc/dracut.conf.d/99-veilor-no-plymouth.conf << 'EOF'
omit_dracutmodules+=" plymouth "
EOF
# Regenerate initramfs for the installed kernel(s).
for kver in /lib/modules/*/; do
kver=$(basename "$kver")
dracut --force --kver "$kver" 2>/dev/null || true
done
# Layer 2: real-root masks
mkdir -p /etc/systemd/system
for unit in \
plymouth-start.service \