On Sat, 18 Mar 2017 13:29:36 +1100, Adam Carter wrote: > IIRC when you add a device to a mirror say with; > mdadm --create --verbose /dev/md127 --level=mirror --raid-devices=1 > --force /dev/sdb3 > > I thought the filesystem is maintained and so /dev/md127 should be > immediately mountable, however, it doesnt mount. > mount: wrong fs type, bad option, bad superblock on /dev/md127, > missing codepage or helper program, or other error
You have created a block device at /dev/md127 but you haven't created a filesystem on it, there's nothing to mount. Unless you are trying to add a device to an existing array, in which case you shouldn't be using --create. -- Neil Bothwick I locked my coathanger in my car; good thing I had a key.
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