add hook etc/kernel/postinst.d/30_remove-system-map to remove system.map

on kernel package upgrade; self-document this package: during upgrade the following will be written to stdout: Setting up linux-image-4.19.0-5-amd64 (4.19.37-5+deb10u2) ... /etc/kernel/postinst.d/30_remove-system-map: removed '/boot/System.map-4.19.0-5-amd64
Kicksecure · Aug 14, 2019 · dbea7d1 · dbea7d1
1 parent f1d8cbc
commit dbea7d1
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/etc/kernel/postinst.d/30_remove-system-map b/etc/kernel/postinst.d/30_remove-system-map
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+if test -x /usr/lib/security-misc/remove-system.map ; then
+   /usr/lib/security-misc/remove-system.map
+fi
diff --git a/usr/lib/security-misc/remove-system.map b/usr/lib/security-misc/remove-system.map
@@ -9,6 +9,6 @@ shopt -s nullglob
 for filename in /boot/System.map-*
 do
   if [ -f "${filename}" ]; then
-    rm -f "${filename}"
+    rm --verbose --force "${filename}"
   fi
 done