In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/linuxrc line 18:

	exec sh

        ^-----^ SC2093 (warning): Remove "exec " if script should continue after this command.

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/linuxrc line 48:

ulimit -c unlimited

       ^-- SC3045 (warning): In POSIX sh, ulimit -c is undefined.

In /logs/firmware/unblob_extracted/firmware_extract/4325012-58052244.squashfs_v4_le_extract/linuxrc line 52:

exec /lib/systemd/systemd "$@"

^----------------------------^ SC2093 (warning): Remove "exec " if script should continue after this command.

For more information:

  https://www.shellcheck.net/wiki/SC2093 -- Remove "exec " if script should c...

  https://www.shellcheck.net/wiki/SC3045 -- In POSIX sh, ulimit -c is undefin...