diff --git a/pkgs/tools/cd-dvd/bchunk/default.nix b/pkgs/tools/cd-dvd/bchunk/default.nix
index 6828ef7d61d3..aa47edcb96c4 100644
--- a/pkgs/tools/cd-dvd/bchunk/default.nix
+++ b/pkgs/tools/cd-dvd/bchunk/default.nix
@@ -20,5 +20,6 @@ stdenv.mkDerivation rec {
     homepage = http://he.fi/bchunk/;
     description = "A program that converts CD images in BIN/CUE format into a set of ISO and CDR tracks";
     platforms = platforms.unix;
+    license = licenses.gpl2;
   };
 }
diff --git a/pkgs/tools/cd-dvd/cdrdao/default.nix b/pkgs/tools/cd-dvd/cdrdao/default.nix
index 25d94593f5ef..a17b03025032 100644
--- a/pkgs/tools/cd-dvd/cdrdao/default.nix
+++ b/pkgs/tools/cd-dvd/cdrdao/default.nix
@@ -28,9 +28,10 @@ stdenv.mkDerivation {
   # Needed on gcc >= 6.
   NIX_CFLAGS_COMPILE = "-Wno-narrowing";
 
-  meta = {
+  meta = with stdenv.lib; {
     description = "A tool for recording audio or data CD-Rs in disk-at-once (DAO) mode";
     homepage = http://cdrdao.sourceforge.net/;
-    platforms = stdenv.lib.platforms.linux;
+    platforms = platforms.linux;
+    license = licenses.gpl2;
   };
 }
diff --git a/pkgs/tools/cd-dvd/lsdvd/default.nix b/pkgs/tools/cd-dvd/lsdvd/default.nix
index 6a3f92a57c2d..56ec8e19f54e 100644
--- a/pkgs/tools/cd-dvd/lsdvd/default.nix
+++ b/pkgs/tools/cd-dvd/lsdvd/default.nix
@@ -13,9 +13,10 @@ stdenv.mkDerivation {
   buildInputs = [ libdvdread ];
   nativeBuildInputs = [ pkgconfig ];
 
-  meta = {
+  meta = with stdenv.lib; {
     homepage = https://sourceforge.net/projects/lsdvd/;
     description = "Display information about audio, video, and subtitle tracks on a DVD";
-    platforms = stdenv.lib.platforms.linux;
+    license = licenses.gpl2;
+    platforms = platforms.linux;
   };
 }
diff --git a/pkgs/tools/compression/pigz/default.nix b/pkgs/tools/compression/pigz/default.nix
index a2668f73ceb2..7d4cdc2df86d 100644
--- a/pkgs/tools/compression/pigz/default.nix
+++ b/pkgs/tools/compression/pigz/default.nix
@@ -28,9 +28,10 @@ stdenv.mkDerivation {
       install -Dm755 pigz.pdf "$out/share/doc/pigz/pigz.pdf"
   '';
 
-  meta = {
+  meta = with stdenv.lib; {
     homepage = http://www.zlib.net/pigz/;
     description = "A parallel implementation of gzip for multi-core machines";
-    platforms = stdenv.lib.platforms.unix;
+    license = licenses.zlib;
+    platforms = platforms.unix;
   };
 }
diff --git a/pkgs/tools/compression/zdelta/default.nix b/pkgs/tools/compression/zdelta/default.nix
index 01050c5ee821..20748c31ab81 100644
--- a/pkgs/tools/compression/zdelta/default.nix
+++ b/pkgs/tools/compression/zdelta/default.nix
@@ -8,8 +8,9 @@ stdenv.mkDerivation rec {
     sha256 = "0k6y0r9kv5qiglnr2j4a0yvfynjkvm0pyv8ly28j0pr3w6rbxrh3";
   };
 
-  meta = {
+  meta = with stdenv.lib; {
 	  homepage = http://cis.poly.edu/zdelta;
-    platforms = stdenv.lib.platforms.linux;
+    platforms = platforms.linux;
+    license = licenses.zlib;
   };
 }
diff --git a/pkgs/tools/filesystems/bashmount/default.nix b/pkgs/tools/filesystems/bashmount/default.nix
index 579258f63f98..cd0f3ea23229 100644
--- a/pkgs/tools/filesystems/bashmount/default.nix
+++ b/pkgs/tools/filesystems/bashmount/default.nix
@@ -31,6 +31,7 @@ stdenv.mkDerivation rec {
     homepage = https://github.com/jamielinux/bashmount;
     description = "A menu-driven bash script for the management of removable media with udisks";
     maintainers = [ maintainers.koral ];
+    license = licenses.gpl2;
     platforms = platforms.all;
   };
 }
diff --git a/pkgs/tools/filesystems/curlftpfs/default.nix b/pkgs/tools/filesystems/curlftpfs/default.nix
index 4af7c9fb8c26..5636909093e6 100644
--- a/pkgs/tools/filesystems/curlftpfs/default.nix
+++ b/pkgs/tools/filesystems/curlftpfs/default.nix
@@ -11,7 +11,11 @@ stdenv.mkDerivation {
 
   doCheck = false; # fails, doesn't work well too, btw
 
-  meta = {
-    platforms = stdenv.lib.platforms.linux;
+  meta = with stdenv.lib; {
+    description = "Filesystem for accessing FTP hosts based on FUSE and libcurl";
+    homepage = http://curlftpfs.sourceforge.net;
+    license = licenses.gpl2;
+    platforms = platforms.linux;
+
   };
 }
diff --git a/pkgs/tools/filesystems/fatresize/default.nix b/pkgs/tools/filesystems/fatresize/default.nix
index 9af14b051261..7bb5dd415a6a 100644
--- a/pkgs/tools/filesystems/fatresize/default.nix
+++ b/pkgs/tools/filesystems/fatresize/default.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchurl, parted, utillinux }:
 
 stdenv.mkDerivation rec {
-  
+
   version = "1.0.2";
   name = "fatresize-${version}";
 
@@ -9,31 +9,32 @@ stdenv.mkDerivation rec {
     url = "mirror://sourceforge/fatresize/fatresize-${version}.tar.bz2";
     sha256 = "04wp48jpdvq4nn0dgbw5za07g842rnxlh9mig4mslz70zqs0izjm";
   };
-  
+
   buildInputs = [ parted utillinux ];
-  
+
   # This patch helps this unmantained piece of software to be built against recent parted
   # It basically modifies the detection scheme for parted version (the current one has no micro version defined)
   # The second change is to include a header for a moved function since 1.6+ to current 3.1+ parted
   # The third change is to modify the call to PED_ASSERT that is no longer defined with 2 params
   patches = [ ./fatresize_parted_nix.patch ];
-  
+
   preConfigure = ''
     echo "Replacing calls to ped_free with free ..."
     substituteInPlace ./fatresize.c --replace ped_free free
   '';
-  
+
   # Filesystem resize functions were reintroduced in parted 3.1 due to no other available free alternatives
   # but in a sepparate library -> libparted-fs-resize --- that's why the added LDFLAG
   makeFlags = ''
     LDFLAGS=-lparted-fs-resize
   '';
-  
+
   propagatedBuildInputs = [ parted utillinux ];
-  
-  meta = {
+
+  meta = with stdenv.lib; {
     description = "The FAT16/FAT32 non-destructive resizer";
     homepage = https://sourceforge.net/projects/fatresize;
-    platforms = stdenv.lib.platforms.linux;
+    platforms = platforms.linux;
+    license = licenses.gpl2;
   };
 }
diff --git a/pkgs/tools/filesystems/jfsutils/default.nix b/pkgs/tools/filesystems/jfsutils/default.nix
index 244f3e294a86..acc7a91d93f5 100644
--- a/pkgs/tools/filesystems/jfsutils/default.nix
+++ b/pkgs/tools/filesystems/jfsutils/default.nix
@@ -12,8 +12,10 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ libuuid ];
 
-  meta = {
+  meta = with stdenv.lib; {
     description = "IBM JFS utilities";
-    platforms = stdenv.lib.platforms.linux;
+    homepage = http://jfs.sourceforge.net;
+    license = licenses.gpl3;
+    platforms = platforms.linux;
   };
 }
diff --git a/pkgs/tools/filesystems/mtools/default.nix b/pkgs/tools/filesystems/mtools/default.nix
index e7a9963f6501..f153e59019e3 100644
--- a/pkgs/tools/filesystems/mtools/default.nix
+++ b/pkgs/tools/filesystems/mtools/default.nix
@@ -17,10 +17,10 @@ stdenv.mkDerivation rec {
 
   doCheck = true;
 
-  meta = {
+  meta = with stdenv.lib; {
     homepage = http://www.gnu.org/software/mtools/;
     description = "Utilities to access MS-DOS disks";
-    platforms = stdenv.lib.platforms.unix;
-    maintainers = [ ];
+    platforms = platforms.unix;
+    license = licenses.gpl3;
   };
 }
diff --git a/pkgs/tools/filesystems/mtpfs/default.nix b/pkgs/tools/filesystems/mtpfs/default.nix
index afe51caa8772..bf048113714f 100644
--- a/pkgs/tools/filesystems/mtpfs/default.nix
+++ b/pkgs/tools/filesystems/mtpfs/default.nix
@@ -18,10 +18,11 @@ stdenv.mkDerivation rec {
     sha256 = "07acrqb17kpif2xcsqfqh5j4axvsa4rnh6xwnpqab5b9w5ykbbqv";
   };
 
-  meta = {
+  meta = with stdenv.lib; {
     homepage = https://github.com/cjd/mtpfs;
     description = "FUSE Filesystem providing access to MTP devices";
-    platforms = stdenv.lib.platforms.all;
-    maintainers = [ stdenv.lib.maintainers.qknight ];
+    platforms = platforms.all;
+    license = licenses.gpl3;
+    maintainers = [ maintainers.qknight ];
   };
 }
diff --git a/pkgs/tools/filesystems/nilfs-utils/default.nix b/pkgs/tools/filesystems/nilfs-utils/default.nix
index 6b56a8aadfa0..eccd72ceb238 100644
--- a/pkgs/tools/filesystems/nilfs-utils/default.nix
+++ b/pkgs/tools/filesystems/nilfs-utils/default.nix
@@ -46,14 +46,11 @@ stdenv.mkDerivation rec {
     find . -name .libs | xargs rm -rf
   '';
 
-  meta = {
+  meta = with stdenv.lib; {
     description = "NILFS utilities";
-    maintainers = with stdenv.lib.maintainers;
-    [
-      raskin
-    ];
-    platforms = with stdenv.lib.platforms;
-      linux;
+    maintainers = [ maintainers.raskin ];
+    platforms = platforms.linux;
+    license =  with licenses; [ gpl2 lgpl21 ];
     downloadPage = "http://nilfs.sourceforge.net/en/download.html";
     updateWalker = true;
   };
diff --git a/pkgs/tools/filesystems/reiser4progs/default.nix b/pkgs/tools/filesystems/reiser4progs/default.nix
index 59d8e8aa4389..967a8ee43bef 100644
--- a/pkgs/tools/filesystems/reiser4progs/default.nix
+++ b/pkgs/tools/filesystems/reiser4progs/default.nix
@@ -21,10 +21,11 @@ stdenv.mkDerivation rec {
     substituteInPlace Makefile --replace ./run-ldconfig true
   '';
 
-  meta = {
+  meta = with stdenv.lib; {
     inherit version;
-    homepage = http://www.namesys.com/;
+    homepage = https://sourceforge.net/projects/reiser4/;
     description = "Reiser4 utilities";
-    platforms = stdenv.lib.platforms.linux;
+    license = licenses.gpl2;
+    platforms = platforms.linux;
   };
 }
diff --git a/pkgs/tools/filesystems/relfs/default.nix b/pkgs/tools/filesystems/relfs/default.nix
index 9a8c3ecb0fc8..04a15dfa22be 100644
--- a/pkgs/tools/filesystems/relfs/default.nix
+++ b/pkgs/tools/filesystems/relfs/default.nix
@@ -40,10 +40,12 @@ stdenv.mkDerivation rec {
 		chmod a+x \$out/bin/relfs_grant;
   '';
 
-	meta = {
+	meta = with stdenv.lib; {
 		description = "A relational filesystem on top of FUSE";
-    maintainers = [stdenv.lib.maintainers.raskin];
-		platforms = stdenv.lib.platforms.linux;
+    homepage = http://relfs.sourceforge.net;
+    license = licenses.gpl2;
+    maintainers = [ maintainers.raskin ];
+    platforms = platforms.linux;
     broken = true;
 	};
 }
diff --git a/pkgs/tools/filesystems/wdfs/default.nix b/pkgs/tools/filesystems/wdfs/default.nix
index dc725b5078f0..135373e09f42 100644
--- a/pkgs/tools/filesystems/wdfs/default.nix
+++ b/pkgs/tools/filesystems/wdfs/default.nix
@@ -9,9 +9,11 @@ stdenv.mkDerivation rec
   };
   nativeBuildInputs = [ pkgconfig ];
   buildInputs = [fuse glib neon];
-  meta = {
+
+  meta = with stdenv.lib; {
     homepage = http://noedler.de/projekte/wdfs/;
+    license = licenses.gpl2;
     description = "User-space filesystem that allows to mount a webdav share";
-    platforms = stdenv.lib.platforms.linux;
+    platforms = platforms.linux;
   };
 }