diff -Nru fwupd-signed-1.27.1ubuntu5/debian/changelog fwupd-signed-1.27.1ubuntu7/debian/changelog
--- fwupd-signed-1.27.1ubuntu5/debian/changelog	2021-07-26 15:50:19.000000000 +0800
+++ fwupd-signed-1.27.1ubuntu7/debian/changelog	2022-02-16 19:14:12.000000000 +0800
@@ -1,3 +1,22 @@
+fwupd-signed (1.27.1ubuntu7) focal; urgency=medium
+
+  * remove fwupd-unsigned from the Recommends of fwupd-signed.
+    This is backported from v1.43 (LP: #1960783)
+
+ -- Yuan-Chen Cheng <yc.cheng@canonical.com>  Wed, 16 Feb 2022 19:14:12 +0800
+
+fwupd-signed (1.27.1ubuntu6) focal; urgency=medium
+
+  [ Yuan-Chen Cheng ]
+  * catch up 1.42 from jammy so we can SRU fwupd/fwupd-efi split back to
+    focal. (LP: #1949412, LP: #1955386)
+
+  [ Łukasz 'sil2100' Zemczak ]
+  * debian/control: adjust the fwupd-unsigned dependency to support
+    source-copy backports (>= 1.1-3~ instead of 1.1-3).
+
+ -- Yuan-Chen Cheng <yc.cheng@canonical.com>  Tue, 08 Feb 2022 13:25:50 +0800
+
 fwupd-signed (1.27.1ubuntu5) focal; urgency=medium
 
   * Build depend on fwupd version 1.5.11-0ubuntu1~20.04.2, take #2 (LP: #1934209)
diff -Nru fwupd-signed-1.27.1ubuntu5/debian/control fwupd-signed-1.27.1ubuntu7/debian/control
--- fwupd-signed-1.27.1ubuntu5/debian/control	2021-07-26 15:50:11.000000000 +0800
+++ fwupd-signed-1.27.1ubuntu7/debian/control	2022-02-16 19:14:12.000000000 +0800
@@ -2,7 +2,7 @@
 Section: utils
 Priority: optional
 Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
-Build-Depends: debhelper (>= 9), python3, python3-apt, fwupd (>= 1.5.11-0ubuntu1~20.04.2)
+Build-Depends: debhelper (>= 9), python3, python3-apt, fwupd-unsigned (>= 1:1.1-3~)
 Standards-Version: 4.5.0
 Vcs-Git: https://salsa.debian.org/efi-team/fwupd-signed.git
 Vcs-Browser: https://salsa.debian.org/efi-team/fwupd-signed
@@ -10,9 +10,9 @@
 Package: fwupd-signed
 Architecture: amd64 i386 armhf arm64
 Multi-Arch: foreign
-Depends: ${misc:Depends}, fwupd (= ${fwupd:Version})
-Recommends: secureboot-db
-Built-Using: fwupd (= ${fwupd:Version})
+Depends: ${misc:Depends},
+Recommends: secureboot-db, fwupd
+Built-Using: fwupd-unsigned (= ${fwupd:Version})
 Description: Linux Firmware Updater EFI signed binary
  fwupd provides functionality to update system firmware. It has been 
  initially designed to update firmware using UEFI capsule updates, but 
diff -Nru fwupd-signed-1.27.1ubuntu5/download-fwupd fwupd-signed-1.27.1ubuntu7/download-fwupd
--- fwupd-signed-1.27.1ubuntu5/download-fwupd	2020-03-05 01:02:03.000000000 +0800
+++ fwupd-signed-1.27.1ubuntu7/download-fwupd	2022-02-08 12:59:45.000000000 +0800
@@ -17,10 +17,19 @@
 arch = apt_pkg.config['Apt::Architecture']
 efi_name = ARCH_TO_EFI_NAME[arch]
 cache = apt.Cache()
-fwupd_efi = cache["fwupd"].candidate
+try:
+    fwupd_efi = cache["fwupd-unsigned"].candidate
+except KeyError:
+    print("fwupd-unsigned not found, falling back to fwupd")
+    fwupd_efi = cache["fwupd"].candidate
+version = fwupd_efi.version
+#drop the epoch from the version as UEFI binary doesn't use it
+if ':' in version:
+    version = version.split(':')[1]
 pool_parsed = urlparse(fwupd_efi.uri)
-dists_dir = "/dists/%s/main/uefi/fwupd-%s/current/" % (
-    fwupd_efi.origins[0].archive, fwupd_efi.architecture)
+dists_dir = "/dists/%s/main/uefi/fwupd-%s/%s/" % (
+    fwupd_efi.origins[0].archive, fwupd_efi.architecture,
+    version)
 
 for base in (
         "fwupd%s.efi.signed" %efi_name,