the image's read-only file system, not the real file system root, so
files created after boot (e.g. by live-config) will not appear in the
union. This option will use the union file system specified by
the image's read-only file system, not the real file system root, so
files created after boot (e.g. by live-config) will not appear in the
union. This option will use the union file system specified by