Sash,
I'm really not worrying about upstream until before I retire from this forum :)
I don't think the magic number number error has anything to do with arcNumber/machid. Usually, when you try to boot stock OS on NAND, its u-boot does a checksum and if it does not match what's in NAND then it refuses to boot. If you can find a consistent NAND mtds, it will boot OK.
I've attached the 4-bay DTB file, try to boot with this and see if you have access to 4 drives.
I'm really not worrying about upstream until before I retire from this forum :)
I don't think the magic number number error has anything to do with arcNumber/machid. Usually, when you try to boot stock OS on NAND, its u-boot does a checksum and if it does not match what's in NAND then it refuses to boot. If you can find a consistent NAND mtds, it will boot OK.
I've attached the 4-bay DTB file, try to boot with this and see if you have access to 4 drives.