In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/lib/conf-migrate/upgrade-run.d/ptzaurus-coordinator line 3:

. /lib/rcscripts/sh/error.sh

  ^------------------------^ SC1091 (info): Not following: /lib/rcscripts/sh/error.sh was not specified as input (see shellcheck -x).

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/lib/conf-migrate/upgrade-run.d/ptzaurus-coordinator line 30:

	[ ! -r $f ] || rm -f $f || error "Failed to remove '$f'"

               ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

                             ^-- SC2086 (info): Double quote to prevent globbing and word splitting.

Did you mean: 

	[ ! -r "$f" ] || rm -f "$f" || error "Failed to remove '$f'"

For more information:

  https://www.shellcheck.net/wiki/SC1091 -- Not following: /lib/rcscripts/sh/...

  https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...