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mdadm.8: Detail use for IMSM_NO_PLATFORM environment variable. 

Suggested-by: Marcin Tomczak <marcin.tomczak@intel.com>
This commit is contained in:
NeilBrown 2013-03-04 17:25:36 +11:00
parent c1ea5a9809
commit 401f095c39
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@ -2710,6 +2710,21 @@ to '1', the
.I mdadm
will create and devices that are needed.
.TP
.B IMSM_NO_PLATFORM
A key value of IMSM metadata is that it allows interoperability with
boot ROMs on Intel platforms, and with other major operating systems.
Consequently,
.I mdadm
will only allow an IMSM array to be created or modified if detects
that it is running on an Intel platform which supports IMSM, and
supports the particular configuration of IMSM that is being requested
(some functionality requires newer OROM support).
These checks can be suppressed by setting IMSM_NO_PLATFORM=1 in the
environment. This can be useful for testing or for disaster
recovery. You should be aware that interoperability may be
compromised by setting this value.
.SH EXAMPLES
.B " mdadm \-\-query /dev/name-of-device"