My raid 10 - used for / - has failed for my Ubuntu box.
I replaced the bad disk and I am trying to reassemble the raid from the initramfs menu. I have tried starting the degraded Raid and using the recovery startup option
When I run the mdadm --assemble /dev/md1 (devices) command it tell me that the first devices is busy or not accessible. However I can run mdadm --examine on the device in question