Add --no-headers tests, split jobs

.github/workflows/ubuntu.yml

@@ -56,7 +56,7 @@ jobs:
         sudo ../../out-of-tree --log-level=debug pew --threshold=0 --qemu-timeout=10m
 
   test-end-to-end-kernels:
-    name: End-to-End Testing (Kernels)
+    name: End-to-End Testing (kernels)
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v1
@@ -77,10 +77,32 @@ jobs:
       run: |
         sudo ./out-of-tree --log-level=debug kernel install --distro=Ubuntu --ver=18.04 --kernel=4.15.0-70-generic --force
 
+    - name: End-to-End Testing [Install one Ubuntu kernel w/o headers]
+      run: |
+        sudo ./out-of-tree --log-level=debug kernel install --distro=Ubuntu --ver=18.04 --kernel=4.15.0-70-generic --no-headers
+
     - name: End-to-End Testing [Install one CentOS kernel]
       run: |
         sudo ./out-of-tree --log-level=debug kernel install --distro=CentOS --ver=7 --kernel=3.10.0-862
 
+    - name: End-to-End Testing [Install one CentOS kernel w/o headers]
+      run: |
+        sudo ./out-of-tree --log-level=debug kernel install --distro=CentOS --ver=7 --kernel=3.10.0-1160 --no-headers
+
+  test-end-to-end-genall:
+    name: End-to-End Testing (genall)
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+
+    - name: Build
+      run: go build
+
+    - name: Install dependencies for tests
+      run: |
+        sudo apt-get update
+        sudo apt-get install qemu-system-x86
+
     - name: End-to-End Testing [Install all Ubuntu 22.04 kernels]
       run: |
         sudo ./out-of-tree --log-level=debug kernel genall --distro=Ubuntu --ver=22.04