Use all defaults for everything. Anything new by show should do the right thing including 4096 byte alignment. gargamel:~# cryptsetup luksDump /dev/md8 [snip] Payload offset: 3072 This is a bit weird because the default is 4096. But because the LUKS offset (header + payload + extra unused space) is 2MiB, so it doesn't affect alignment. There may be unpatched (fixes not backported) in the tools of current long term supported distros, that can cause misalignment. Probably top concern would be parted/libparted, which would start partition 1 at LBA 63, which is not aligned. The upstream tools for a long time now have set partition 1 to LBA 2048, but these crusty old unpatched versions just seem to persist like a booger you can't flick off. It's really annoying - this idea of "stable bugs" that go on and on for a decade. Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
