1 files changed, 118 insertions, 0 deletions
diff --git a/create-initrd.sh b/create-initrd.sh
new file mode 100644
index 0000000..40bc2a9
--- /dev/null
+++ b/create-initrd.sh
@@ -0,0 +1,118 @@
+#!/bin/bash
+#
+if [ -z $CPU ]; then
+   echo "CPU needs to be set"
+   exit 1
+fi
+
+. ./vars.sh
+
+LOOP=$(sudo losetup -f)
+LOOPPART="${LOOP}p1"
+IMG_SIZE=2048MB
+BASE_SYS_ROOT=$(basename $SYS_ROOT)
+INITRD_FILE=initrd.ext2
+INITRD_SIZE=100MB
+DISK_SIZE=2048MB
+IMG=hd.img
+
+create_initrd () {
+   print_info "Creating disk image $INITRD_FILE using $LOOP..."
+   fallocate -l $INITRD_SIZE $INITRD_FILE &&
+      sudo losetup $LOOP $INITRD_FILE &&
+      sudo mkfs.ext2 -o hurd -b 4096 -v $LOOP
+      sudo losetup -d $LOOP &&
+      sudo losetup -P $LOOP $INITRD_FILE &&
+   sleep 2 &&
+   fill_initrd
+}
+
+fill_initrd () {
+   local src=$SYSTEM/$BASE_SYS_ROOT
+   echo "Copying from $src"
+   mkdir -p output-initrd &&
+   sudo mount -o rw -t ext2 $LOOP output-initrd &&
+   sudo chmod ogu+w -R output-initrd &&
+   mkdir -p output-initrd/{dev,hurd,bin,lib,libexec,proc,sbin,servers} &&
+   touch output-initrd/servers/{exec,crash-kill,default-pager,password,socket,startup,proc,auth,symlink} &&
+   cp $src/hurd/{exec,auth,init,null,devnode,storeio,ext2fs,console,hello,streamio,proc,procfs,startup} output-initrd/hurd/ &&
+   cp $src/lib/*.so* output-initrd/lib/ &&
+   cp $src/bin/{settrans,echo,uname} output-initrd/bin/ &&
+   cp $src/bin/bash output-initrd/bin/sh &&
+   cp $src/bin/{ls,ps,settrans,cat,uptime,wall,who,yes,whoami,sleep,portinfo,msgport,fsysopts,env,sleep,date,tty,rpctrace,md5sum,cal,df,du} output-initrd/bin/ &&
+   cp $src/sbin/{halt,reboot} output-initrd/sbin/ &&
+   cp files/runsystem.initrd output-initrd/libexec/runsystem &&
+   cp $src/bin/dash output-initrd/libexec/console-run &&
+   ln -sf / output-initrd/tools-$CPU &&
+   sudo mknod -m 600 output-initrd/dev/mach-console c 5 1 &&
+   echo "Contents of initrd:" &&
+   pushd output-initrd &&
+   find .
+   popd &&
+   sudo losetup -d $LOOP
+}
+
+create_image () {
+   print_info "Creating disk image $IMG using $LOOP..."
+   fallocate -l $IMG_SIZE $IMG &&
+      sudo losetup $LOOP $IMG &&
+      sudo parted -a optimal -s $LOOP mklabel msdos &&
+      sudo parted -a optimal -s $LOOP -- mkpart primary ext2 2048s -1 &&
+      sudo parted -s $LOOP -- set 1 boot on &&
+      sudo losetup -d $LOOP &&
+      sudo losetup -P $LOOP $IMG &&
+   sleep 2 &&
+   sudo mkfs.ext2 -o hurd -m 1 -v $LOOPPART
+}
+
+mount_image () {
+   mkdir -p output-disk &&
+      sudo mount -o rw -t ext2 $LOOPPART output-disk &&
+      sudo chmod ogu+w -R output-disk/
+}
+
+fill_disk () {
+   local src=$SYSTEM/$BASE_SYS_ROOT
+   mkdir -p output-disk/{sbin,boot,tools,lib} &&
+   mkdir -p output-disk/boot/grub &&
+   cp $src/hurd/ext2fs.static output-disk/sbin &&
+   cp $src/lib/ld-x86-64.so.1 output-disk/lib/ld.so.1 &&
+   mv $INITRD_FILE output-disk/boot &&
+   cp $SYSTEM/boot/gnumach output-disk/boot &&
+   cp files/boot/grub.initrd.cfg output-disk/boot/grub/grub.cfg &&
+   echo "Disk contents:"
+   pushd output-disk &&
+   find .
+   popd
+}
+
+install_grub () {
+   print_info "Installing the GRUB on $IMG..."
+   sudo grub-install --target=i386-pc --directory=$SYS_ROOT/lib/grub/i386-pc --boot-directory=output-disk/boot $LOOP
+}
+
+umount_initrd () {
+   sudo umount output-initrd
+   sudo losetup -d $LOOP
+}
+
+umount_image () {
+   sudo umount output-disk >/dev/null 2>&1
+   sudo losetup -d $LOOP >/dev/null 2>&1
+}
+
+trap umount_initrd EXIT
+trap umount_initrd INT
+trap umount_image EXIT
+trap umount_image INT
+
+rm -f $INITRD_FILE &&
+rm -f $IMG &&
+create_initrd &&
+sudo umount output-initrd &&
+echo $(losetup -f)
+create_image &&
+mount_image &&
+fill_disk &&
+install_grub &&
+umount_image