Use full paths when running commands

src/idmslinux_installer/util/blockdevices.py

@@ -72,8 +72,8 @@ class BlockDevices:
         """Load block devices from lsblk."""
 
         # Open subprocess to lsblk
-        lsblk_output = subprocess.check_output([
-            'lsblk',
+        lsblk_output = subprocess.check_output([  # nosec
+            '/usr/bin/lsblk',
             '--list', '--noheadings',
             '--output', 'PATH,TYPE,SIZE',
             '--sort', 'NAME',

src/idmslinux_installer/util/sfdisk.py

@@ -47,8 +47,8 @@ class Sfdisk:
         """Load the various partition types supported by sfdisk."""
 
         # Open subprocess to sfdisk
-        sfdisk_output = subprocess.check_output([
-            'sfdisk',
+        sfdisk_output = subprocess.check_output([  # nosec
+            '/usr/bin/sfdisk',
             '--label', 'gpt',
             '--list-types',
         ])