On Mon, Mar 13 2017, zhilong wrote: > On 03/13/2017 06:54 AM, NeilBrown wrote: >> On Wed, Mar 08 2017, Zhilong Liu wrote: >> >>> mdadm: it would be better to check --level ealier, >>> because it would fall to different prompt if user >>> forgets to specify the --level. such as: >>> ./mdadm -CR /dev/md0 -b internal -n2 -x1 /dev/loop[0-2] >> When I run that command I get: >> >> mdadm: a RAID level is needed to create an array. >> >> >> What do you get? > > I'm sorry I have provided the wrong command, for this scenario, > issues "mdadm --build /dev/md0 -n2 /dev/loop[0-1]" should be > proper. it's the purpose to check --level earlier. OK, that makes sense. > > If this patch is useful, I would send the v1 patch for it, correct the > comments. My preference would be to have the check in Build.c, but Jes might have different ideas. NeilBrown
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