mxgrub: Include microcode updates in initramfs

mxgrub/create_initramfs

@@ -0,0 +1,41 @@
+#!/bin/sh
+
+set -x
+
+if [ -z "$1" ]; then
+    echo "You need to supply an initrd file name"
+    exit 1
+fi
+
+# Prepare microcode updates for AMD and Intel processors
+DSTDIR=kernel/x86/microcode
+INITRDNAME="$1"
+INITRDPATH=/boot/grub/"$INITRDNAME".igz
+INITRDDIR="$TMPDIR/$INITRDNAME"
+mkdir -p "$INITRDDIR"
+cd "$INITRDDIR"
+mkdir -p "$DSTDIR"
+
+if [ -d /lib/firmware/amd-ucode ]; then
+    cat /lib/firmware/amd-ucode/microcode_amd*.bin > "$DSTDIR"/AuthenticAMD.bin
+fi
+
+if [ -d /lib/firmware/intel-ucode ]; then
+    cat /lib/firmware/intel-ucode/* > "$DSTDIR"/GenuineIntel.bin
+fi
+
+ls -ltr "$TMPDIR"
+find . | cpio -o -H newc > "$TMPDIR"/ucode.cpio
+ls -ltr "$TMPDIR"
+
+cd ..
+
+# Clean up
+rm -rf "$INITRDDIR"
+
+cd /project/admin/initramfs
+find .|cpio -H newc -o | gzip > "$TMPDIR/$INITRDNAME.igz"
+
+#
+cat "$TMPDIR"/ucode.cpio "$TMPDIR/$INITRDNAME.igz" > /boot/grub/"$INITRDNAME.igz"
+rm "$TMPDIR"/ucode.cpio "$TMPDIR"/"$INITRDNAME.igz"

mxgrub/mxgrub

@@ -252,7 +252,7 @@ sub cmd_update {
 }
 
 sub cmd_initramfs {
-	sys('bash','-c','cd /project/admin/initramfs;find .|cpio -H newc -o | gzip > /boot/grub/initramfs.igz');
+	sys('create_initramfs', 'initramfs');
 }
 
 our ($opt_list,$opt_update,$opt_initramfs,$opt_test);