diff --git a/contrib/rootfs/offline_repo.json b/contrib/rootfs/offline_repo.json
index df44d8296249c26cc5110c8143ca36135222d7c6..397c4b3d05133728e526a686a3d9030af61f82ed 100644
--- a/contrib/rootfs/offline_repo.json
+++ b/contrib/rootfs/offline_repo.json
@@ -53,11 +53,6 @@
             "pkgdescription": "SSH-Server (s. KISS)",
             "tagged": false
         },
-        {
-            "pkgname": "linux-firmware-nonfree",
-            "pkgdescription": "Properitäre Firmware für exotische Notebooks/Hardware",
-            "tagged": false
-        },
         {
             "pkgname": "zsh",
             "pkgdescription": "Alternative Shell",
@@ -98,8 +93,8 @@
             "pkgdescription": "Vanilla Linux Kernel",
             "tagged": false,
             "urls": [
-              "http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc2-wily/linux-image-4.6.0-040600rc2-generic_4.6.0-040600rc2.201604031130_amd64.deb",
-              "http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc2-wily/linux-image-4.6.0-040600rc2-generic_4.6.0-040600rc2.201604031130_i386.deb"
+              "http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8-rc3/linux-image-4.8.0-040800rc3-generic_4.8.0-040800rc3.201608212032_amd64.deb",
+              "http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8-rc3/linux-image-4.8.0-040800rc3-generic_4.8.0-040800rc3.201608212032_i386.deb"
             ]
         },
         {
@@ -107,8 +102,8 @@
             "pkgdescription": "Vanilla Linux Kernel Headers",
             "tagged": false,
             "urls": [
-              "http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc2-wily/linux-headers-4.6.0-040600rc2-generic_4.6.0-040600rc2.201604031130_amd64.deb",
-              "http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc2-wily/linux-headers-4.6.0-040600rc2-generic_4.6.0-040600rc2.201604031130_i386.deb"
+              "http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8-rc3/linux-headers-4.8.0-040800rc3-generic_4.8.0-040800rc3.201608212032_amd64.deb",
+              "http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8-rc3/linux-headers-4.8.0-040800rc3-generic_4.8.0-040800rc3.201608212032_i386.deb"
             ]
         }
       ]
@@ -121,26 +116,22 @@
             "tagged": true,
             "hidden": true,
             "urls": [
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular_4.0.3+ds-1_amd64.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular_4.0.3+ds-1_i386.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-ui_4.0.3+ds-1_amd64.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-ui_4.0.3+ds-1_i386.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-data_4.0.3+ds-1_all.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-modules_4.0.3+ds-1_amd64.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-modules_4.0.3+ds-1_i386.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-doc_4.0.3+ds-1_all.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/libsingular4_4.0.3+ds-1_amd64.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/libsingular4_4.0.3+ds-1_i386.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/f/flint/libflint-2.5.2_2.5.2-3_amd64.deb",
-              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/f/flint/libflint-2.5.2_2.5.2-3_i386.deb"
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular_4.0.3-p1+ds-3_amd64.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular_4.0.3-p1+ds-3_i386.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-ui_4.0.3-p1+ds-3_amd64.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-ui_4.0.3-p1+ds-3_i386.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-data_4.0.3-p1+ds-3_all.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-modules_4.0.3-p1+ds-3_amd64.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-modules_4.0.3-p1+ds-3_i386.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/singular-doc_4.0.3-p1+ds-3_all.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/libsingular4_4.0.3-p1+ds-3_amd64.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/s/singular/libsingular4_4.0.3-p1+ds-3_i386.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/f/flint/libflint-2.5.2_2.5.2-8_amd64.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/f/flint/libflint-2.5.2_2.5.2-8_i386.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/n/ntl/libntl27_9.9.1-3_amd64.deb",
+              "ftp://ftp.halifax.rwth-aachen.de/debian/pool/main/n/ntl/libntl27_9.9.1-3_i386.deb"
             ]
         },
-        {
-            "pkgname": "libntl5",
-            "pkgdescription": "Abhängigkeit von Singular",
-            "tagged" : false,
-            "hidden" : true
-        },
         {
             "pkgname": "libcdd0d",
             "pkgdescription": "Abhängigkeit von Singular",
@@ -209,11 +200,6 @@
             "pkgdescription": "Graphische Benutzeroberfläche für das Maxima Computer Algebra System",
             "tagged": true
         },
-        {
-            "pkgname": "root-system",
-            "pkgdescription": "Datenanalyse Framework vom CERN",
-            "tagged": true
-        },
         {
             "pkgname": "bpython",
             "pkgdescription": "Ein weiterer interaktiver Python Interpreter",