From 111b011a6b0c514fb8912710fd132b3ff983c004 Mon Sep 17 00:00:00 2001
From: Gordon GECOS <u@adam>
Date: Fri, 30 Oct 2020 23:03:17 -0400
Subject: it still works

---
 build-deps.control |  1 +
 src/parted-usb.sh  | 58 ++++++++++++++++++++++++++++++++++++++++++++----------
 2 files changed, 49 insertions(+), 10 deletions(-)

diff --git a/build-deps.control b/build-deps.control
index d3205e8..a30f93f 100644
--- a/build-deps.control
+++ b/build-deps.control
@@ -3,6 +3,7 @@ Build-Depends: bridge-utils,
                build-essential,
                cryptsetup,
                devscripts,
+               dosfstools,
                eatmydata,
                equivs,
                kpartx,
diff --git a/src/parted-usb.sh b/src/parted-usb.sh
index 3bf95be..05b776c 100755
--- a/src/parted-usb.sh
+++ b/src/parted-usb.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+USE_EFI=
 die()
 {
     printf 'Error: %s\n' "$*" >&2
@@ -51,8 +52,10 @@ partition_target()
     parted "$target" -sm -a optimal                             \
            unit MiB                                             \
            mklabel gpt                                          \
-           mkpart samizdat-grub 1 8                             \
-           set 1 bios_grub on                                   \
+           mkpart samizdat-efi  1 8                             \
+           set 1 esp on                                         \
+           mkpart samizdat-grub 8 64                            \
+           set 2 bios_grub on                                   \
            mkpart samizdat-keys btrfs ${start_keys} ${end_keys}
     if [ -b "$target" ]
     then
@@ -76,23 +79,57 @@ sex()
 
 make_target_bootable()
 {
-    mkfs.btrfs -f --mixed "$part"2
+    mkfs.btrfs -f --mixed "$part"3
     mkdir -p "$mnt"
-    mount "$part"2 "$mnt"
+    mount "$part"3 "$mnt"
 
     mkdir -p "$mnt"/boot/grub
     cp -avL "$GRUB_CONFIG" "$mnt"/boot/grub
 
+    mkdir -p "$mnt"/boot/efi
+    mkfs.vfat "$part"1
+    if [ "$USE_EFI" ]
+    then
+        efi_dir="$mnt".efi
+        mkdir -p "$efi_dir"
+        mount "$part"1 "$mnt".efi
+        mkdir "$efi_dir"/boot
+        boot_dir=$efi_dir/boot
+    else
+        boot_dir=$mnt/boot
+    fi
+
+    # https://wiki.archlinux.org/index.php/Multiboot_USB_drive#Hybrid_UEFI_GPT_+_BIOS_GPT/MBR_boot
+    # grub-install --target=x86_64-efi --removable --boot-directory=/mnt/boot --efi-directory=/mnt
+
     GRUB_LOGFILE=$(mktemp) || exit
-    set -- eatmydata -- grub-install -v --boot-directory "$mnt"/boot "$dev"
+    set -- eatmydata -- \
+        grub-install ${VERBOSE:+ -v} \
+        ${USE_EFI:+ --target=i386-efi} \
+        ${USE_EFI:+ --recheck} \
+        ${USE_EFI:+ --removable} \
+        ${USE_EFI:+ --efi-directory "$efi_dir"} \
+        --boot-directory "$boot_dir" \
+        "$dev"
     echo "running: $* >$GRUB_LOGFILE 2>&1" >&2
     if "$@" >"$GRUB_LOGFILE" 2>&1
     then
-        rm "$GRUB_LOGFILE"
+        fail=
     else
+        fail=y
+    fi
+    if [ "$USE_EFI" ]
+    then
+        umount -l "$mnt"/boot/efi || :
+    fi
+    umount -l "$mnt" || :
+    if [ "$fail" ]
+    then
         set -x
         tail -n5 "$GRUB_LOGFILE"
         exit 1
+    else
+        rm "$GRUB_LOGFILE"
     fi
     sync
 }
@@ -103,15 +140,15 @@ copy_rootfs()
     then
         return
     fi
-    [ -e "$ROOTFS" -a -b "$part"3 ]
+    [ -e "$ROOTFS" -a -b "$part"4 ]
     get_rootfs_size
-    part_size=$(blockdev --getsize64 "$part"3)
+    part_size=$(blockdev --getsize64 "$part"4)
     [ "$rootfs_size" -le "$part_size" ] || die "rootfs_size=$rootfs_size > part_size=$part_size"
 
     (
         set -x
-        dd if="$ROOTFS" of="$part"3
-        # dd if=rootfs/samizdat.patch.seed.btrfs of="$part"4
+        dd if="$ROOTFS" of="$part"4
+        # dd if=rootfs/samizdat.patch.seed.btrfs of="$part"5
     )
 }
 
@@ -224,6 +261,7 @@ boot_vm()
     find_mac 52-54-00-12-34-56
     qemu-system-x86_64 \
         -enable-kvm \
+        ${USE_EFI:+ -bios /usr/share/OVMF/OVMF_CODE.fd} \
         -smp 2 \
         -m 512 \
         -k en-us \
-- 
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