From 149c552e0fda9bdc64ea10fe5a2bfa35bd26ec65 Mon Sep 17 00:00:00 2001
From: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Date: Sun, 8 Jul 2007 19:22:18 +0000
Subject: - provide option to build an initramfs out of the current rootfs.
 Closes #881

---
 target/initramfs/initramfs.mk | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 target/initramfs/initramfs.mk

(limited to 'target/initramfs/initramfs.mk')

diff --git a/target/initramfs/initramfs.mk b/target/initramfs/initramfs.mk
new file mode 100644
index 000000000..e4ae1480a
--- /dev/null
+++ b/target/initramfs/initramfs.mk
@@ -0,0 +1,43 @@
+#############################################################
+#
+# Make a initramfs_list file to be used by gen_init_cpio
+# gen_init_cpio is part of the 2.6 linux kernels to build an 
+# initial ramdisk filesystem based on cpio
+#
+#############################################################
+
+ifeq ($(strip $(BR2_TARGET_ROOTFS_INITRAMFS)),y)
+INITRAMFS_TARGET:=$(IMAGE).initramfs_list
+else
+INITRAMFS_TARGET:= #nothing
+endif
+
+$(INITRAMFS_TARGET) initramfs: host-fakeroot makedevs
+	-find $(TARGET_DIR) -type f -perm +111 | xargs $(STRIP) 2>/dev/null || true;
+	rm -rf $(TARGET_DIR)/usr/man
+	rm -rf $(TARGET_DIR)/usr/info
+	-/sbin/ldconfig -r $(TARGET_DIR) 2>/dev/null
+	# Use fakeroot to pretend all target binaries are owned by root
+	rm -f $(STAGING_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
+	touch $(STAGING_DIR)/.fakeroot.00000
+	cat $(STAGING_DIR)/.fakeroot* > $(STAGING_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
+	echo "chown -R 0:0 $(TARGET_DIR)" >> $(STAGING_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
+	# Use fakeroot to pretend to create all needed device nodes
+	echo "$(STAGING_DIR)/bin/makedevs -d $(TARGET_DEVICE_TABLE) $(TARGET_DIR)" \
+		>> $(STAGING_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
+	# Use fakeroot so gen_initramfs_list.sh  believes the previous fakery
+	echo "$(CONFIG_SHELL) target/initramfs/gen_initramfs_list.sh -u 0 -g 0 $(TARGET_DIR) > $(INITRAMFS_TARGET)" \
+		>> $(STAGING_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
+	chmod a+x $(STAGING_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
+	$(STAGING_DIR)/usr/bin/fakeroot -- $(STAGING_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
+	-rm -f $(STAGING_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
+
+initramfs-source:
+
+initramfs-clean:
+ifeq ($(strip $(BR2_TARGET_ROOTFS_INITRAMFS)),y)
+	-rm -f $(INITRAMFS_TARGET)
+endif
+initramfs-dirclean:
+
+
-- 
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