lp:~ubuntu-core-dev/curtin

Author: Ryan Harper
Author Date: 2020-04-22 22:25:11 UTC

multipath: attempt to enforce /dev/mapper/mpath files are symlinks

Multipath device scanning and bring up variablity may result in
the creation of /dev/mapper/mpath* files that are block devices
instead of a symlink to the device mapper device (/dev/dm-0).

When these block files are present, this breaks assumptions in
curtin used to look up details in sysfs for a mapper device.

Author: Ryan Harper
Author Date: 2020-04-22 16:09:33 UTC

block-meta: device mapper partitions may be block devices not links

In some cases the multipath library may create a block device which
is not a symbolic link to the device-mapper dev[1]. Curtin expects the
symlink. Remove the non-symlink file and allow kpartx to create it.

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

(cherry picked from commit 22172900d8090ba7f9e3110e80d9b63152d42cf7)
Signed-off-by: Dimitri John Ledkov <xnox@ubuntu.com>