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The Gemini reference design-derived devices uses a partition format which is predictable and we can exploit this to offer some proper upgrade path. The kernel for these contains a hack to use this partition format unaltered by combining the partitions "Kern" and "Ramdisk" to one image with all of the kernel+ramdisk in memory. Then the "Application" which is used for the rootfs go into its own partition. Standard flash layout: Kern 2048k | Ramdisk 6144k | = 9216k Application 6144k | = 15360k Following the pattern of the factory image we create three images named zImage, rd.gz and hddapp.tgz (these filenames are misleading! They are just required by the old firmware.) and flash each individually with "mtd" during upgrades. Since the IB-4220-V has a different layout with a bigger kernel space we parameterize this so we can handle this too. (More fixes are needed for that device though.) A way to upgrade older OpenWrt on these platforms to the latest and greatest will be to copy the file target/linux/gemini/base-files/lib/upgrade/platform.sh to /lib/upgrade/platform.sh on your running system and then run sysupgrade from the image produced after this patch. The script is picky to sanity check the partitions before commencing upgrade. This was tested with a full sysupgrade on the iTian SQ201. Link: https://github.com/openwrt/openwrt/pull/21680 Signed-off-by: Linus Walleij <linusw@kernel.org> |
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| airoha | ||
| apm821xx | ||
| armsr | ||
| at91 | ||
| ath79 | ||
| bcm27xx | ||
| bcm47xx | ||
| bcm53xx | ||
| bcm4908 | ||
| bmips | ||
| d1 | ||
| econet | ||
| gemini | ||
| generic | ||
| imx | ||
| ipq40xx | ||
| ipq806x | ||
| ixp4xx | ||
| kirkwood | ||
| lantiq | ||
| layerscape | ||
| loongarch64 | ||
| malta | ||
| mediatek | ||
| microchipsw | ||
| mpc85xx | ||
| mvebu | ||
| mxs | ||
| octeon | ||
| omap | ||
| pistachio | ||
| qoriq | ||
| qualcommax | ||
| qualcommbe | ||
| ramips | ||
| realtek | ||
| rockchip | ||
| sifiveu | ||
| siflower | ||
| starfive | ||
| stm32 | ||
| sunxi | ||
| tegra | ||
| uml | ||
| x86 | ||
| zynq | ||
| Makefile | ||