Using edk2-shell for UEFI shell

configs/releng/build.sh:
Instead of downloading UDK2018 based edk2 UEFI shell, use the Shell
binaries from the edk2-shell package.
This effectively makes the use of EFI shell v1 obsolete.

configs/releng/efiboot/loader/entries/uefi-shell-v*:
Renaming UEFI shell entries to match the packaged edk2-shell based UEFI
shell binaries.

configs/releng/build.sh:
Renaming the systemd-boot bootloader entries for UEFI shell (normal and
full version) to reflect their file names, which are derived from the
binary names in the edk2-shell package.
Copying the edk2-shell based UEFI shell binaries for normal efiboot and
.iso based "el-torito" efiboot mode.

docs/README.build:
Adding edk2-shell to the requirements in the documentation, as the
package is now used to provide UEFI shell.

configs/releng/build.sh

@@ -160,17 +160,16 @@ make_efi() {
 
     mkdir -p ${work_dir}/iso/loader/entries
     cp ${script_path}/efiboot/loader/loader.conf ${work_dir}/iso/loader/
-    cp ${script_path}/efiboot/loader/entries/uefi-shell-v2-x86_64.conf ${work_dir}/iso/loader/entries/
-    cp ${script_path}/efiboot/loader/entries/uefi-shell-v1-x86_64.conf ${work_dir}/iso/loader/entries/
+    cp ${script_path}/efiboot/loader/entries/uefi-shell-x86_64.conf ${work_dir}/iso/loader/entries/
+    cp ${script_path}/efiboot/loader/entries/uefi-shell-full-x86_64.conf ${work_dir}/iso/loader/entries/
 
     sed "s|%ARCHISO_LABEL%|${iso_label}|g;
          s|%INSTALL_DIR%|${install_dir}|g" \
         ${script_path}/efiboot/loader/entries/archiso-x86_64-usb.conf > ${work_dir}/iso/loader/entries/archiso-x86_64.conf
 
-    # EFI Shell 2.0 for UEFI 2.3+
-    curl -o ${work_dir}/iso/EFI/shellx64_v2.efi https://raw.githubusercontent.com/tianocore/edk2/UDK2018/ShellBinPkg/UefiShell/X64/Shell.efi
-    # EFI Shell 1.0 for non UEFI 2.3+
-    curl -o ${work_dir}/iso/EFI/shellx64_v1.efi https://raw.githubusercontent.com/tianocore/edk2/UDK2018/EdkShellBinPkg/FullShell/X64/Shell_Full.efi
+    # edk2-shell based UEFI shell
+    cp /usr/share/edk2-shell/x64/Shell.efi ${work_dir}/iso/EFI/Shell_x64.efi
+    cp /usr/share/edk2-shell/x64/Shell_Full.efi ${work_dir}/iso/EFI/Shell_Full_x64.efi
 }
 
 # Prepare efiboot.img::/EFI for "El Torito" EFI boot mode
@@ -197,15 +196,15 @@ make_efiboot() {
 
     mkdir -p ${work_dir}/efiboot/loader/entries
     cp ${script_path}/efiboot/loader/loader.conf ${work_dir}/efiboot/loader/
-    cp ${script_path}/efiboot/loader/entries/uefi-shell-v2-x86_64.conf ${work_dir}/efiboot/loader/entries/
-    cp ${script_path}/efiboot/loader/entries/uefi-shell-v1-x86_64.conf ${work_dir}/efiboot/loader/entries/
+    cp ${script_path}/efiboot/loader/entries/uefi-shell-x86_64.conf ${work_dir}/efiboot/loader/entries/
+    cp ${script_path}/efiboot/loader/entries/uefi-shell-full-x86_64.conf ${work_dir}/efiboot/loader/entries/
 
     sed "s|%ARCHISO_LABEL%|${iso_label}|g;
          s|%INSTALL_DIR%|${install_dir}|g" \
         ${script_path}/efiboot/loader/entries/archiso-x86_64-cd.conf > ${work_dir}/efiboot/loader/entries/archiso-x86_64.conf
 
-    cp ${work_dir}/iso/EFI/shellx64_v2.efi ${work_dir}/efiboot/EFI/
-    cp ${work_dir}/iso/EFI/shellx64_v1.efi ${work_dir}/efiboot/EFI/
+    cp ${work_dir}/iso/EFI/Shell_x64.efi ${work_dir}/efiboot/EFI/
+    cp ${work_dir}/iso/EFI/Shell_Full_x64.efi ${work_dir}/efiboot/EFI/
 
     umount -d ${work_dir}/efiboot
 }

configs/releng/efiboot/loader/entries/uefi-shell-full-x86_64.conf

+title  UEFI Shell (Full) x86_64
+efi    /EFI/Shell_Full_x64.efi

configs/releng/efiboot/loader/entries/uefi-shell-v1-x86_64.conf

-title  UEFI Shell x86_64 v1
-efi    /EFI/shellx64_v1.efi

configs/releng/efiboot/loader/entries/uefi-shell-v2-x86_64.conf

-title  UEFI Shell x86_64 v2
-efi    /EFI/shellx64_v2.efi

configs/releng/efiboot/loader/entries/uefi-shell-x86_64.conf

+title  UEFI Shell x86_64
+efi    /EFI/Shell_x64.efi

docs/README.build

@@ -11,6 +11,7 @@ INDEX
 
 ** For mkarchiso script needs these packages (build host):
  + arch-install-scripts    for pacstrap/arch-chroot
+ + edk2-shell              for UEFI shell
  + squashfs-tools          for mksquashfs
  + libisoburn              for xorriso
  + btrfs-progs             for mkfs.btrfs (optional)