Le 01/04/2018 à 14:37, Mark Syms a écrit :
Fixed if myself.
Turns out that an earlier package run (some two weeks ago) had removed
mdadm and I hadn't spotted that. So when grub-install tried to
interrogate the raid it didn't have any user space tools to do so.
It is one of the rare causes I found when searching the web for the
error message, although it sounded quite unlikely. Why the hell would
such an essential component as mdadm be uninstalled ? It could have
broken your system boot more surely than GRUB itself. Assembly of 1.x
arrays requires mdadm.
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