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fix: load dm_mod/dm_crypt and mount /proc /sys for LUKS setup

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The live installer environment doesn't have dm_mod loaded, causing
'Cannot initialize device-mapper' during LUKS2 encryption. Also
bind-mount /proc and /sys into chroot so cryptsetup can detect
hardware capabilities.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Dorian 2026-03-26 17:28:08 +00:00
parent bda8b38a95
commit 6063ac553c
1 changed files with 10 additions and 2 deletions
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12
image-recipe/build-auto-installer-iso.sh
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@ -1234,8 +1234,14 @@ echo " [5/7] Encrypting data partition (LUKS2)..."
dd if=/dev/urandom of=/mnt/target/root/.luks-archipelago.key bs=4096 count=1 2>/dev/null
chmod 600 /mnt/target/root/.luks-archipelago.key
# Bind-mount /dev so cryptsetup can access the data partition from chroot
# Load dm_mod kernel module (required for device-mapper / LUKS)
modprobe dm_mod 2>/dev/null || true
modprobe dm_crypt 2>/dev/null || true
# Bind-mount /dev, /proc, /sys so cryptsetup works in chroot
mount --bind /dev /mnt/target/dev
mount --bind /proc /mnt/target/proc
mount --bind /sys /mnt/target/sys
# Detect AES-NI support for cipher selection
if grep -q aes /proc/cpuinfo 2>/dev/null; then
@ -1258,7 +1264,9 @@ chroot /mnt/target cryptsetup open --type luks2 \
--key-file /root/.luks-archipelago.key \
"$DATA_PART" archipelago-data
# Unmount /dev (will be re-mounted later for grub-install)
# Unmount chroot bind mounts (will be re-mounted later for grub-install)
umount /mnt/target/sys 2>/dev/null || true
umount /mnt/target/proc 2>/dev/null || true
umount /mnt/target/dev
# Format the inner filesystem