Comment 48 for bug 1869075

Looking at the system we found that:

/dev/mapper/mpatha-part1 was a *block* device, not a symbolic link to a dm-X device.

Looking around finds this old issue:

https://bugzilla.redhat.com/show_bug.cgi?id=869253

which mentions that if "udev is slow" then the multipath library may create a block device.
We may want to look at pulling that in to our multipath tools. In any event,
curtin can check if this block device is present, remove it and then when kpartx runs it will create the symbolic link.