Add device-mapper proof of concept to snippets.

2 files changed, 20 insertions, 1 deletions

diff --git a/build_initramfs.sh b/build_initramfs.sh
index 05d345a0..968777b1 100755
--- a/build_initramfs.sh
+++ b/build_initramfs.sh
@@ -78,6 +78,7 @@ function build_initramfs() {
     if [ "$_VERBOSE" == '' ]; then
         "$_SCOPE" _VERBOSE='no'
         "$_SCOPE" _LOAD_ENVIRONMENT='no'
+        "$_SCOPE" _CREATE_SYSTEM_IMAGE='no'
         local dependencies=(bash cpio git test shift echo mktemp cat rm sed \
             gzip curl tar grep make cmake)
         "$_SCOPE" _DEPENDENCIES="${dependencies[*]}"
@@ -119,6 +120,9 @@ EOF
 
     -l --load-environment Simple load the install arch linux scope without
         doing anything else.
+
+    -c --create-system-image Creates a system image file for given path
+        (default: "$_CREATE_SYSTEM_IMAGE").
 EOF
     }
     function build_initramfs_print_help_message() {
@@ -153,6 +157,11 @@ EOF
                     shift
                     _LOAD_ENVIRONMENT='yes'
                     ;;
+                -c|--create-system-image)
+                    shift
+                    _CREATE_SYSTEM_IMAGE="$1"
+                    shift
+                    ;;
 
                 '')
                     shift
@@ -299,6 +308,11 @@ EOF
         return $?
         # TODO rm -rf build
     }
+    function build_initramfs_create_qcow2_system() {
+        # TODO
+        qemu-img create -f qcow2 "${CONTAINER_PATH}" "${QCOW_SIZE}"
+        return $?
+    }
 
     # endregion
 
@@ -331,6 +345,7 @@ EOF
     return 0
 
     # endregion
+
 }
 
 # region footer
diff --git a/dev_tools/snippets.sh b/dev_tools/snippets.sh
index f99cc361..02cad0b2 100644
--- a/dev_tools/snippets.sh
+++ b/dev_tools/snippets.sh
@@ -46,7 +46,11 @@ mount /dev/mapper/sandbox /mnt
 umount /mnt
 dmsetup remove sandbox
 
-
 modprobe loop
 dd if=/dev/zero of=persistent_storage.img bs=1k count=1000
 losetup /dev/loop0 persistent_storage.img
+
+# Mount second partion example.
+fdisk -lu
+losetup -o $((1050624*512)) /dev/loop0 /dev/nbd0 -v
+mount /dev/loop0 /mnt/