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armvirt: fix overlay support by updating to f2fs/ext4 based overlays

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Current snapshot images doesn't provide images with usable overlay
filesystems:

 mount_root: no usable overlay filesystem found, using tmpfs overlay

So this patch fixes this by updating support to current f2fs/ext4 based
overlays and providing squashfs with proper rootfs
TARGET_ROOTFS_PARTSIZE size.

While at it, I've also added support for optional gzipping of the
images, and renamed the output rootfs image filenames to match the more
common naming pattern $(IMG_PREFIX)-rootfs-$(FS-TYPE).img.

Cc: Yousong Zhou <yszhou4tech@gmail.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
This commit is contained in:
Petr Štetiar 2019-03-28 14:34:26 +00:00
parent d9426d537b
commit 53f4a686aa
2 changed files with 10 additions and 2 deletions
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2
target/linux/armvirt/Makefile
View File

@ -17,4 +17,6 @@ KERNEL_PATCHVER:=4.19
include $(INCLUDE_DIR)/target.mk
DEFAULT_PACKAGES += mkf2fs e2fsprogs
$(eval $(call BuildTarget))

10
target/linux/armvirt/image/Makefile
View File

@ -19,10 +19,16 @@ define Image/Build/Initramfs
)
endef
define Image/Build/gzip
gzip -f9n $(BIN_DIR)/$(IMG_ROOTFS)-$(1).img
endef
$(eval $(call Image/gzip-ext4-padded-squashfs))
define Image/Build
$(call Image/Build/$(1))
dd if=$(KDIR)/root.$(1) bs=128k conv=sync | \
gzip -9n >$(BIN_DIR)/$(IMG_PREFIX)-root.$(1).gz
$(CP) $(KDIR)/root.$(1) $(BIN_DIR)/$(IMG_ROOTFS)-$(1).img
$(call Image/Build/gzip/$(1))
endef
$(eval $(call BuildImage))