In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/lib/conf-migrate/upgrade-run.d/time-service line 12:

. /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/time-service line 21:

[ $1 ] || error "Failed due to '\$1' empty"

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

Did you mean: 

[ "$1" ] || error "Failed due to '\$1' empty"

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/lib/conf-migrate/upgrade-run.d/time-service line 22:

[ -d $1 ] || error "Directory '$1' test failed"

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

Did you mean: 

[ -d "$1" ] || error "Directory '$1' test failed"

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/lib/conf-migrate/upgrade-run.d/time-service line 24:

if [ -f $1$ts_posix_time_zone ] && [ -r $1$ts_posix_time_zone ]; then

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

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

Did you mean: 

if [ -f "$1"$ts_posix_time_zone ] && [ -r "$1"$ts_posix_time_zone ]; then

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

if [ -h $1$localtime ]; then

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

Did you mean: 

if [ -h "$1"$localtime ]; then

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/lib/conf-migrate/upgrade-run.d/time-service line 34:

elif [ -f $1$localtime ] && [ -r $1$localtime ]; then

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

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

Did you mean: 

elif [ -f "$1"$localtime ] && [ -r "$1"$localtime ]; then

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/lib/conf-migrate/upgrade-run.d/time-service line 52:

if [ -f $1$ts_conf ]; then

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

Did you mean: 

if [ -f "$1"$ts_conf ]; then

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/lib/conf-migrate/upgrade-run.d/time-service line 58:

	if [ -f $legacy_conf ]; then

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

Did you mean: 

	if [ -f "$legacy_conf" ]; then

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/lib/conf-migrate/upgrade-run.d/time-service line 61:

		. $legacy_conf || error "Failed to source: '$legacy_conf'"

                  ^----------^ SC1090 (warning): ShellCheck can't follow non-constant source. Use a directive to specify location.

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

Did you mean: 

		. "$legacy_conf" || error "Failed to source: '$legacy_conf'"

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/lib/conf-migrate/upgrade-run.d/time-service line 67:

	[ $POSIX_TZ ] || POSIX_TZ=GMT0BST,M3.5.0/1,M10.5.0

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

Did you mean: 

	[ "$POSIX_TZ" ] || POSIX_TZ=GMT0BST,M3.5.0/1,M10.5.0

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/usr/lib/conf-migrate/upgrade-run.d/time-service line 68:

	[ $DST_ENABLED ] || DST_ENABLED=no

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

Did you mean: 

	[ "$DST_ENABLED" ] || DST_ENABLED=no

For more information:

  https://www.shellcheck.net/wiki/SC1090 -- ShellCheck can't follow non-const...

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

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