support for Seagate DockStar
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PATCH v2 1/1 support for Seagate DockStar
Quoted 11 lines · Marcus Osdoba
Regarding the mtd-partitions,
your patch does not reflect the original layout of the 256MiB flash.The original layout is:
0x00100000 "U-Boot" 1MiB 0x00400000 "uImage" 4MiB 0x02000000 "root" 32MiB 0x0db00000 "data" 219MiBThe patchv2 subsumes the last two "partitions".
Was this done with intention?
It was intentional, but I wouldn't mind getting some feedback on the decision. And this may all be moot since the partition scheme can be set on the kernel command line with mtdparts=... anyway.
The original system from Cloud Engines uses the layout you describe above. I found that also to be useful for running OpenWrt on the device -- the "root" partition can be used for a read-only rootfs, and the "data" partition as a writable overlay on top of the rootfs.
I now actually prefer to use just 2 partitions -- 1MB for u-boot, and 255MB for a ubifs root, with the uImage as just a regular file in /boot. But this only works when the factory u-boot is replaced with a newer one that can read files from ubifs.
So I felt the three-partition scheme struck a balance -- it would allow one to set up a standard kernel in the uImage partition and a ubifs root filesystem in the remaining space, without having to re-flash the u-boot partition.
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Eric Cooper e c c @ c m u . e d u