From 1594c9b9e68fd33c05142879e57ed728fc7cc7e1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82?= <ash8820@proton.me>
Date: Sun, 16 Aug 2026 22:58:48 +0200
Subject: [PATCH] fix(build): create loop devices in container for efi.img
 mount

make_grub mounts the 4M efi.img with a loop device. The podman container
only had /dev/loop0 from the host, so losetup could not allocate a free
loop device and the build aborted at the EFI boot image step. Create
/dev/loop-control and /dev/loop0-15 before running buildiso.
---
 build-iso-podman.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/build-iso-podman.sh b/build-iso-podman.sh
index 0921314..642d2bb 100755
--- a/build-iso-podman.sh
+++ b/build-iso-podman.sh
@@ -22,6 +22,11 @@ sudo podman run --rm --privileged --entrypoint sh \
     set -euo pipefail
     mkdir -p /var/lib/artools/buildiso
     mount -t tmpfs -o size=12G,exec,suid,dev tmpfs /var/lib/artools/buildiso
+    modprobe loop 2>/dev/null || true
+    [ -e /dev/loop-control ] || mknod -m 0660 /dev/loop-control c 10 237
+    for i in $(seq 0 15); do
+      [ -e "/dev/loop$i" ] || mknod -m 0660 "/dev/loop$i" b 7 "$i"
+    done
     /workspace/buildiso -p antergos
     echo "=== BUILD FINISHED ==="
     mkdir -p /workspace/iso-output