Make mxraid assemble journal aware #425
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get_hd_serial is not used anywhere, so stay with get_hd_info.
Improve non-root usage: - optionally use different config files via MDADM_CONF_BASE env - correctly honor verbose setting in MxRaid::HostData
To use nvme 'disks' as journal device mxraid_assemble needs to be aware of partitioned devices. Partitions are addressed by adding '.PartId' to the serial number in mxmd.conf (see full explanation there).
Rationale: Adding/removing an external journal to/from a md device requires a couple of mdadm commands that are not that straight forward. Given that there are no open files on the md device, switching is accomplished with: #> mxraid_journal journal md0 nvme0n1p1 And in the other direction: #> mxraid_journal bitmap md0
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