Allow smaller efi partition

assemble_image.sh

@@ -132,6 +132,7 @@ configure_package_chooser mathe "m" "M" "Mathematics" "Mathematik"
 configure_package_chooser physik "p" "P" "Physics" "Physik"
 configure_package_chooser informatik "i" "I" "Computer Science" "Informatik"
 cp calamares-packages.conf "$ETC_CAL/modules/packages.conf"
+cp calamares-partition.conf "$ETC_CAL/modules/partition.conf"
 chown "$REGULAR_USER:$REGULAR_USER" -R "$ISO_PROFILES_REPO"
 
 create_offline_repo

calamares-partition.conf

+---
+efiSystemPartition:     "/boot/efi"
+efiSystemPartitionSize:     50M
+userSwapChoices:
+    - none      # Create no swap, use no swap
+    - small     # Up to 4GB
+    - suspend   # At least main memory size
+    - file      # To swap file instead of partition
+alwaysShowPartitionLabels: true
+# There are four options: erase, replace, alongside, manual),
+# the default is "none".
+initialPartitioningChoice: alongside
+initialSwapChoice: none
+defaultFileSystemType:  "ext4"
+availableFileSystemTypes:  ["ext4","btrfs","f2fs","xfs"]