[syslinux-iso] Fix double execution of initscripts hooks.

Partially revert commit b171f8f11fdc04a22c7b8f3ff3b9dd164986daae

Fixes https://bugs.archlinux.org/task/23786

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>

1 files changed, 20 insertions, 0 deletions

diff --git a/configs/syslinux-iso/overlay/etc/archiso/functions b/configs/syslinux-iso/overlay/etc/archiso/functions
new file mode 100644
index 0000000..02b41cf
--- /dev/null
+++ b/configs/syslinux-iso/overlay/etc/archiso/functions
@@ -0,0 +1,20 @@
+# vim: set ft=sh:
+
+# kernel_cmdline <param>
+# Looks for a parameter on the kernel's boot-time command line.
+#
+# returns: 0 if param was found. Also prints its value if it was a K=V param.
+#          1 if it was not
+#
+kernel_cmdline ()
+{
+    for param in $(/bin/cat /proc/cmdline); do
+        case "${param}" in
+            $1=*) echo "${param##*=}"; return 0 ;;
+            $1) return 0 ;;
+            *) continue ;;
+        esac
+    done
+
+    return 1
+}