Add configs/*/grub/loopback.cfg

See https://www.supergrubdisk.org/wiki/Loopback.cfg for details.

Only `${iso_path}` is guaranteed, so we need to search for the volume,
on which the ISO file resides, ourselves.

Implements https://gitlab.archlinux.org/archlinux/archiso/-/issues/165

1 files changed, 2 insertions, 0 deletions

diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index a41b474..53baf85 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -11,6 +11,8 @@ Added
 - Add bolt to releng for authorizing and otherwise managing Thunderbolt and USB4 devices.
 - Add ``uefi-ia32.systemd-boot.esp`` and ``uefi-ia32.systemd-boot.eltorito`` boot modes that use systemd-boot for IA32
   UEFI. The boot modes of baseline and releng are not changed.
+- Add GRUB configuration file ``/boot/grub/loopback.cfg`` to the releng and baseline profiles. It sets the necessary
+  boot parameters required for booting the ISO image as a file on a file system.
 
 Changed
 -------