Use triggers when calling update-initramfs in postinst and postrm

[live-boot-grml.git] / debian / postinst

diff --git a/debian/postinst b/debian/postinst
index 752b161..805eb0a 100644 (file)
--- a/debian/postinst
+++ b/debian/postinst
@@ -1,8 +1,24 @@
 #!/bin/sh
 
-if [ -x /usr/sbin/update-initramfs ]
+case "$(ls -l /boot/vmlinuz* | wc -l)" in
+       1)
+               # We only have one kernel installed, so we can use "-u"
+               # which will use dpkg-trigger inside update-initramfs
+               INITRAMFS_ARGS="-u"
+               ;;
+       *)
+               INITRAMFS_ARGS="-u -k all"
+               ;;
+esac
+
+if [ -x /usr/sbin/update-initramfs ] && [ "x$1" != "xtriggered" ] && \
+   dpkg --compare-versions "$DPKG_RUNNING_VERSION" ge '1.14.18'
 then
-       update-initramfs -k all -u
+       # this activates the trigger, if triggers are working
+       update-initramfs ${INITRAMFS_ARGS}
+else
+       # force it to actually happen
+       DPKG_MAINTSCRIPT_PACKAGE='' update-initramfs ${INITRAMFS_ARGS}
 fi
 
 #DEBHELPER#