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gemini: Fix up image generation 

I noticed that the image generator for the Gemini generates
some 10+ MB files for the second (application) partition.
This is just wrong. The first 6144K partition named initramfs
easily fits OpenWRTs squashfs,jffs2 overlayed partitions
with nice headroom for storing configuration files.

Generate a blank partition for the hddapp.tgz file and delete
it after generating the firmware image - when performing
updates manually you just want the "rd.z" file around
anyways.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
openwrt-19.07
Linus Walleij 2018-10-17 20:46:19 +02:00 committed by Hauke Mehrtens
parent 10ec966f7b
commit f280bd7fa8
1 changed files with 10 additions and 6 deletions
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16
target/linux/gemini/image/Makefile
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@ -40,16 +40,20 @@ define Build/dns313-images
endef
# Create the special NAS4220B image format with the squashfs
# split across two "partitions" named rd.gz and hddapp.tgz but
# essentially just being used by OpenWRT as one big partition
# and overlay inside the "rd.gz" file. We pad it out to 6144K
# which is the size of the initramfs partition.
#
# The "application" partition is just blank. You can put anything
# there when using OpenWRT. We just use that to create the
# "sysupgrade" firmware image.
define Build/nas4220b-images
dd if=$(IMAGE_ROOTFS) of=$(BIN_DIR)/rd.gz bs=6144k conv=sync
dd if=$(IMAGE_ROOTFS) of=$(BIN_DIR)/hddapp.tgz bs=6144k count=1 seek=1
dd if=/dev/zero of=$(BIN_DIR)/hddapp.tgz bs=6144k count=1
cp $(IMAGE_KERNEL) $(BIN_DIR)/zImage
cp ./ImageInfo-ib4220 $(BIN_DIR)/ImageInfo
(cd $(BIN_DIR); tar -czf $(IMG_PREFIX)-sysupgrade-ib4220b.tar.gz ImageInfo zImage rd.gz hddapp.tgz)
mv $(BIN_DIR)/rd.gz $(BIN_DIR)/$(IMG_PREFIX)-nas4220b-rd.gz
mv $(BIN_DIR)/hddapp.tgz $(BIN_DIR)/$(IMG_PREFIX)-nas4220b-hddapp.tgz
rm $(BIN_DIR)/hddapp.tgz
mv $(BIN_DIR)/zImage $(BIN_DIR)/$(IMG_PREFIX)-nas4220b-zImage
rm -f $(BIN_DIR)/ImageInfo
endef
@ -57,13 +61,13 @@ endef
# The Itian Square One SQ201 uses the same method.
define Build/sq201-images
dd if=$(IMAGE_ROOTFS) of=$(BIN_DIR)/rd.gz bs=6144k conv=sync
dd if=$(IMAGE_ROOTFS) of=$(BIN_DIR)/hddapp.tgz bs=6144k count=1 seek=1
dd if=/dev/zero of=$(BIN_DIR)/hddapp.tgz bs=6144k count=1
cp $(IMAGE_KERNEL) $(BIN_DIR)/zImage
cp ./ImageInfo-sq201 $(BIN_DIR)/ImageInfo
sed -i -e "s/DATESTR/`date +%Y%m%d`/g" $(BIN_DIR)/ImageInfo
(cd $(BIN_DIR); tar -czf $(IMG_PREFIX)-sysupgrade-sq201.tar.gz ImageInfo zImage rd.gz hddapp.tgz)
mv $(BIN_DIR)/rd.gz $(BIN_DIR)/$(IMG_PREFIX)-sq201-rd.gz
mv $(BIN_DIR)/hddapp.tgz $(BIN_DIR)/$(IMG_PREFIX)-sq201-hddapp.tgz
rm $(BIN_DIR)/hddapp.tgz
mv $(BIN_DIR)/zImage $(BIN_DIR)/$(IMG_PREFIX)-sq201-zImage
rm -f $(BIN_DIR)/ImageInfo
endef