Modify SYSTEMD_INIT, closes #15.

Migrating from /usr/lib/systemd/systemd -> /lib/systemd/systemd
This version checks for the existence of /lib/systemd/systemd, and
will use the old (/usr/lib/systemd/systemd) path if it is not
found - this should be safe wrt older systems.

buildkernel

@@ -31,7 +31,7 @@ shopt -s nullglob
 # ********************** variables ********************* 
 PROGNAME="$(basename "${0}")"
 CONFFILE="/etc/${PROGNAME}.conf"
-VERSION="1.0.28"
+VERSION="1.0.29"
 ETCPROFILE="/etc/profile"
 DEFAULTEFIBOOTFILE="bootx64.efi"
 EFIBOOTFILE="${DEFAULTEFIBOOTFILE}"
@@ -57,8 +57,15 @@ LUKSKEYFILE="${DEFAULTLUKSKEYFILE}"
 MODPROBEDIR="/etc/modprobe.d"
 CMDLINE_ROOT="/dev/ram0"
 SYSTEMD_INIT="/usr/lib/systemd/systemd"
+SYSTEMD_NEW_INIT="/lib/systemd/systemd"
 OPENRC_INIT="/sbin/init"
-CMDLINE_REAL_INIT="${SYSTEMD_INIT}"
+if [[ -e "${SYSTEMD_NEW_INIT}" ]]; then
+    # new path exists, so use it
+    CMDLINE_REAL_INIT="${SYSTEMD_NEW_INIT}"
+else
+    # fallback for older systems
+    CMDLINE_REAL_INIT="${SYSTEMD_INIT}"
+fi
 CMDLINE_DOLVM_FLAG="dolvm"
 SECUREBOOTKEY="/etc/efikeys/db.key"
 SECUREBOOTCERT="/etc/efikeys/db.crt"

buildkernel.8

@@ -1,4 +1,4 @@
-.TH BUILDKERNEL 8 "Version 1.0.28: November 2017"
+.TH BUILDKERNEL 8 "Version 1.0.29: January 2018"
 .SH NAME
 buildkernel \- build secure boot kernel, save to EFI system partition
 .SH SYNOPSIS

buildkernel.conf.5

@@ -1,4 +1,4 @@
-.TH BUILDKERNEL 5 "Version 1.0.28: November 2017"
+.TH BUILDKERNEL 5 "Version 1.0.29: January 2018"
 .SH NAME
 buildkernel.conf \- a configuration file for \fBbuildkernel\fR(8)
 .SH SYNOPSIS