check-kernel.in: generic kernel detection added

1 files changed, 18 insertions, 0 deletions

diff --git a/check-kernel.in b/check-kernel.in
index b3088d7..4b9f421 100644
--- a/check-kernel.in
+++ b/check-kernel.in
@@ -46,6 +46,7 @@ while true; do
   shift
 done
 
+unset installed
 if which pacman >/dev/null 2>&1; then
   # arch linux
   running=$(
@@ -74,6 +75,23 @@ elif which apt >/dev/null 2>&1; then
       tail -n1
   )
 else
+  running=$(
+    uname -r
+  )
+  installed=$(
+    ls /boot | \
+      sed -n '
+        s/^vmlinuz-\([0-9.]\+\)$/\1/
+        T
+        p
+      ' | \
+      sort -V | \
+      tail -n1
+  )
+fi
+
+if [ -z "${installed}" ] || \
+  [ "$(echo "${installed}" | wc -l)" -ne 1 ]; then
   >&2 printf 'Cannot determin installed kernel.\n'
   exit 2
 fi