Hi Nathan, I don't believe that files inside UBIFS rootfs is the right approach for kernel and dtb. Given that the bootloader already supports UBI, why not use use a UBI volume instead? While U-Boot does support reading files from UBIFS, squashfs inside UBI volumes are not supported (squashfs inside read-only UBI volume is desirable if you like having the features depending on ROM+overlay such as failsafe and factory restore similar to other hardware targets).
The Kirkwood target is part of OpenWrt for a long while already, longer than proper UBI support is around and long before wasting any thoughts about rootfs_overlay on NAND. Our current "state of the art" is to have squashfs read-only rootfs, just like on NOR devices, using UBIFS as rootfs_overlay (instead of JFFS2 on NOR). For bootloaders supporting UBI it makes sense to store kernel (and DTB) in a UBI volume and load them from there. Take a look at SysupgradeNAND and UbinizeImage targets in image.mk for examples. Cheers Daniel On Fri, Jan 23, 2015 at 08:57:57PM -0800, Nathan Hintz wrote: > For SheevaPlug and GuruPlug devices. > > Signed-off-by: Nathan Hintz <nlhi...@hotmail.com> > --- > target/linux/kirkwood/profiles/120-plug.mk | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/target/linux/kirkwood/profiles/120-plug.mk > b/target/linux/kirkwood/profiles/120-plug.mk > index dcbda71..473955d 100644 > --- a/target/linux/kirkwood/profiles/120-plug.mk > +++ b/target/linux/kirkwood/profiles/120-plug.mk > @@ -7,6 +7,7 @@ > > define Profile/SHEEVAPLUG > NAME:=Globalscale Technologies SheevaPlug > + DEPENDS:=+@TARGET_ROOTFS_INCLUDE_KERNEL +@TARGET_ROOTFS_INCLUDE_ZIMAGE > +@TARGET_ROOTFS_INCLUDE_DTB > PACKAGES:= \ > kmod-mmc kmod-mvsdio kmod-usb2 kmod-usb-storage \ > kmod-of-i2c kmod-i2c-core kmod-i2c-mv64xxx \ > @@ -24,6 +25,7 @@ $(eval $(call Profile,SHEEVAPLUG)) > > define Profile/SHEEVAPLUGSATA > NAME:=Globalscale Technologies eSATA SheevaPlug > + DEPENDS:=+@TARGET_ROOTFS_INCLUDE_KERNEL +@TARGET_ROOTFS_INCLUDE_ZIMAGE > +@TARGET_ROOTFS_INCLUDE_DTB > PACKAGES:= \ > kmod-mmc kmod-mvsdio kmod-usb2 kmod-usb-storage \ > kmod-of-i2c kmod-i2c-core kmod-i2c-mv64xxx \ > @@ -42,6 +44,7 @@ $(eval $(call Profile,SHEEVAPLUGSATA)) > > define Profile/Guruplug-Server-Plus > NAME:=Globalscale Technologies Guruplug Server Plus > + DEPENDS:=+@TARGET_ROOTFS_INCLUDE_KERNEL +@TARGET_ROOTFS_INCLUDE_ZIMAGE > +@TARGET_ROOTFS_INCLUDE_DTB > PACKAGES:= \ > kmod-mmc kmod-mvsdio kmod-usb2 kmod-usb-storage \ > kmod-of-i2c kmod-i2c-core kmod-i2c-mv64xxx \ > -- > 1.9.3 > _______________________________________________ > openwrt-devel mailing list > openwrt-devel@lists.openwrt.org > https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
