diff --git a/debian/apertis/copyright b/debian/apertis/copyright
index 63c87ee67d1bba9ce86a1a6e514a712a8553eafc..1a59d09123a5831d886ad1f4e0589cb71fa74363 100644
--- a/debian/apertis/copyright
+++ b/debian/apertis/copyright
@@ -5,7 +5,14 @@ Copyright: 2009, 2015, 2019, The Go Authors.
 License: BSD-3-clause
 
 Files: debian/*
-Copyright: no-info-found
+Copyright: 2010 Ivan Wong <ivanwyc@gmail.com>
+           2010 Ondřej Surý <ondrej@debian.org>
+           2012 Michael Stapelberg <stapelberg@debian.org>
+           2014 Canonical Ltd
+           2014 Tianon Gravi <tianon@debian.org>
+           2016-2018 Michael Hudson-Doyle <mwhudson@debian.org>
+           2018 Martín Ferrari <tincho@debian.org>
+           2018-2019 Dr. Tobias Quathamer <toddy@debian.org>
 License: Go
 
 Files: debian/patches/0002-Fix-Lintian-warnings-about-wrong-interpreter-path.patch
@@ -14,7 +21,14 @@ Copyright: 2009, 2020, The Go Authors.
 License: Go
 
 Files: debian/rules
-Copyright: no-info-found
+Copyright: 2010 Ivan Wong <ivanwyc@gmail.com>
+           2010 Ondřej Surý <ondrej@debian.org>
+           2012 Michael Stapelberg <stapelberg@debian.org>
+           2014 Canonical Ltd
+           2014 Tianon Gravi <tianon@debian.org>
+           2016-2018 Michael Hudson-Doyle <mwhudson@debian.org>
+           2018 Martín Ferrari <tincho@debian.org>
+           2018-2019 Dr. Tobias Quathamer <toddy@debian.org>
 License: public-domain
 
 Files: misc/trace/*
@@ -22,15 +36,33 @@ Copyright: 2012, The Chromium Authors.
 License: BSD-3-clause
 
 Files: src/cmd/compile/internal/gc/gsubr.go
-Copyright: no-info-found
+Copyright: 2009, 2016, 2019, The Go Authors.
+ 2004, 2006, Bruce Ellis
+ 2000-2008, Vita Nuova Holdings Limited (www.vitanuova.com)
+ 2000-2008, Lucent Technologies Inc. and others
+ 1997-1999, Vita Nuova Limited
+ 1995-1997, 2005-2007, C H Forsyth (forsyth@terzarima.net)
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/cmd/internal/obj/arm/*
-Copyright: no-info-found
+Copyright: 2009, 2016, 2019, The Go Authors.
+ 2004, 2006, Bruce Ellis
+ 2000-2008, Vita Nuova Holdings Limited (www.vitanuova.com)
+ 2000-2008, Lucent Technologies Inc. and others
+ 1997-1999, Vita Nuova Limited
+ 1995-1997, 2005-2007, C H Forsyth (forsyth@terzarima.net)
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/cmd/internal/obj/arm64/*
-Copyright: no-info-found
+Copyright: 2009, 2016, 2019, The Go Authors.
+ 2004, 2006, Bruce Ellis
+ 2000-2008, Vita Nuova Holdings Limited (www.vitanuova.com)
+ 2000-2008, Lucent Technologies Inc. and others
+ 1997-1999, Vita Nuova Limited
+ 1995-1997, 2005-2007, C H Forsyth (forsyth@terzarima.net)
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/cmd/internal/obj/data.go
@@ -38,19 +70,43 @@ Files: src/cmd/internal/obj/data.go
  src/cmd/internal/obj/link.go
  src/cmd/internal/obj/pass.go
  src/cmd/internal/obj/sym.go
-Copyright: no-info-found
+Copyright: 2009, 2016, 2019, The Go Authors.
+ 2004, 2006, Bruce Ellis
+ 2000-2008, Vita Nuova Holdings Limited (www.vitanuova.com)
+ 2000-2008, Lucent Technologies Inc. and others
+ 1997-1999, Vita Nuova Limited
+ 1995-1997, 2005-2007, C H Forsyth (forsyth@terzarima.net)
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/cmd/internal/obj/mips/*
-Copyright: no-info-found
+Copyright: 2009, 2016, 2019, The Go Authors.
+ 2004, 2006, Bruce Ellis
+ 2000-2008, Vita Nuova Holdings Limited (www.vitanuova.com)
+ 2000-2008, Lucent Technologies Inc. and others
+ 1997-1999, Vita Nuova Limited
+ 1995-1997, 2005-2007, C H Forsyth (forsyth@terzarima.net)
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/cmd/internal/obj/ppc64/*
-Copyright: no-info-found
+Copyright: 2009, 2016, 2019, The Go Authors.
+ 2004, 2006, Bruce Ellis
+ 2000-2008, Vita Nuova Holdings Limited (www.vitanuova.com)
+ 2000-2008, Lucent Technologies Inc. and others
+ 1997-1999, Vita Nuova Limited
+ 1995-1997, 2005-2007, C H Forsyth (forsyth@terzarima.net)
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/cmd/internal/obj/riscv/cpu.go
-Copyright: no-info-found
+Copyright: 2009, 2016, 2019, The Go Authors.
+ 2004, 2006, Bruce Ellis
+ 2000-2008, Vita Nuova Holdings Limited (www.vitanuova.com)
+ 2000-2008, Lucent Technologies Inc. and others
+ 1997-1999, Vita Nuova Limited
+ 1995-1997, 2005-2007, C H Forsyth (forsyth@terzarima.net)
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/cmd/internal/obj/riscv/obj.go
@@ -58,22 +114,46 @@ Copyright: 2015, 2017, 2019, The Go Authors.
 License: Expat
 
 Files: src/cmd/internal/obj/s390x/*
-Copyright: no-info-found
+Copyright: 2009, 2016, 2019, The Go Authors.
+ 2004, 2006, Bruce Ellis
+ 2000-2008, Vita Nuova Holdings Limited (www.vitanuova.com)
+ 2000-2008, Lucent Technologies Inc. and others
+ 1997-1999, Vita Nuova Limited
+ 1995-1997, 2005-2007, C H Forsyth (forsyth@terzarima.net)
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/cmd/internal/obj/x86/*
-Copyright: no-info-found
+Copyright: 2009, 2016, 2019, The Go Authors.
+ 2004, 2006, Bruce Ellis
+ 2000-2008, Vita Nuova Holdings Limited (www.vitanuova.com)
+ 2000-2008, Lucent Technologies Inc. and others
+ 1997-1999, Vita Nuova Limited
+ 1995-1997, 2005-2007, C H Forsyth (forsyth@terzarima.net)
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/cmd/internal/objabi/autotype.go
  src/cmd/internal/objabi/head.go
  src/cmd/internal/objabi/reloctype.go
  src/cmd/internal/objabi/symkind.go
-Copyright: no-info-found
+Copyright: 2009, 2016, 2019, The Go Authors.
+ 2004, 2006, Bruce Ellis
+ 2000-2008, Vita Nuova Holdings Limited (www.vitanuova.com)
+ 2000-2008, Lucent Technologies Inc. and others
+ 1997-1999, Vita Nuova Limited
+ 1995-1997, 2005-2007, C H Forsyth (forsyth@terzarima.net)
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/cmd/link/internal/*
-Copyright: no-info-found
+Copyright: 2009, 2016, 2019, The Go Authors.
+ 2004, 2006, Bruce Ellis
+ 2000-2008, Vita Nuova Holdings Limited (www.vitanuova.com)
+ 2000-2008, Lucent Technologies Inc. and others
+ 1997-1999, Vita Nuova Limited
+ 1995-1997, 2005-2007, C H Forsyth (forsyth@terzarima.net)
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/cmd/link/internal/ld/ar.go
@@ -84,7 +164,13 @@ Files: src/cmd/link/internal/ld/ar.go
  src/cmd/link/internal/ld/main.go
  src/cmd/link/internal/ld/sym.go
  src/cmd/link/internal/ld/symtab.go
-Copyright: no-info-found
+Copyright: 2009, 2016, 2019, The Go Authors.
+ 2004, 2006, Bruce Ellis
+ 2000-2008, Vita Nuova Holdings Limited (www.vitanuova.com)
+ 2000-2008, Lucent Technologies Inc. and others
+ 1997-1999, Vita Nuova Limited
+ 1995-1997, 2005-2007, C H Forsyth (forsyth@terzarima.net)
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/cmd/link/internal/ld/elf.go
@@ -102,11 +188,23 @@ License: Expat
 Files: src/cmd/link/internal/sym/segment.go
  src/cmd/link/internal/sym/symbols.go
  src/cmd/link/internal/sym/symkind.go
-Copyright: no-info-found
+Copyright: 2009, 2016, 2019, The Go Authors.
+ 2004, 2006, Bruce Ellis
+ 2000-2008, Vita Nuova Holdings Limited (www.vitanuova.com)
+ 2000-2008, Lucent Technologies Inc. and others
+ 1997-1999, Vita Nuova Limited
+ 1995-1997, 2005-2007, C H Forsyth (forsyth@terzarima.net)
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/cmd/oldlink/internal/*
-Copyright: no-info-found
+Copyright: 2009, 2016, 2019, The Go Authors.
+ 2004, 2006, Bruce Ellis
+ 2000-2008, Vita Nuova Holdings Limited (www.vitanuova.com)
+ 2000-2008, Lucent Technologies Inc. and others
+ 1997-1999, Vita Nuova Limited
+ 1995-1997, 2005-2007, C H Forsyth (forsyth@terzarima.net)
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/cmd/oldlink/internal/ld/ar.go
@@ -117,7 +215,13 @@ Files: src/cmd/oldlink/internal/ld/ar.go
  src/cmd/oldlink/internal/ld/main.go
  src/cmd/oldlink/internal/ld/sym.go
  src/cmd/oldlink/internal/ld/symtab.go
-Copyright: no-info-found
+Copyright: 2009, 2016, 2019, The Go Authors.
+ 2004, 2006, Bruce Ellis
+ 2000-2008, Vita Nuova Holdings Limited (www.vitanuova.com)
+ 2000-2008, Lucent Technologies Inc. and others
+ 1997-1999, Vita Nuova Limited
+ 1995-1997, 2005-2007, C H Forsyth (forsyth@terzarima.net)
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/cmd/oldlink/internal/ld/elf.go
@@ -135,7 +239,13 @@ License: Expat
 Files: src/cmd/oldlink/internal/sym/segment.go
  src/cmd/oldlink/internal/sym/symbols.go
  src/cmd/oldlink/internal/sym/symkind.go
-Copyright: no-info-found
+Copyright: 2009, 2016, 2019, The Go Authors.
+ 2004, 2006, Bruce Ellis
+ 2000-2008, Vita Nuova Holdings Limited (www.vitanuova.com)
+ 2000-2008, Lucent Technologies Inc. and others
+ 1997-1999, Vita Nuova Limited
+ 1995-1997, 2005-2007, C H Forsyth (forsyth@terzarima.net)
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/cmd/vendor/*
@@ -176,7 +286,9 @@ Copyright: 2016, 2019, The Go Authors.
 License: OpenSSL
 
 Files: src/debug/elf/elf.go
-Copyright: no-info-found
+Copyright: 2009, The Go Authors.
+ 2001, David E. OBrien
+ 1996-1998, John D. Polstra.
 License: BSD-2-clause
 
 Files: src/hash/crc32/crc32_ppc64le.s
@@ -193,7 +305,9 @@ Files: src/runtime/memclr_arm.s
  src/runtime/vlop_386.s
  src/runtime/vlop_arm.s
  src/runtime/vlrt.go
-Copyright: no-info-found
+Copyright: 2009, The Go Authors.
+ 2000-2007, Vita Nuova Holdings Limited (www.vitanuova.com).
+ 1994-1999, Lucent Technologies Inc.
 License: Expat
 
 Files: src/vendor/*