This is the converse problem to https://vyos.dev/T7994: normalization of the config bind mount in https://vyos.dev/T7836 means that when searching for previous installations one searches in `{mount_path}/opt/vyatta/etc/config`. However, when searching for previous installations //that were themselves created// with the legacy bind mount (<= 1.4.4), the `config.boot` file resident there is //not// the saved version, but rather the baseline created by the original installation. One must therefore search both the legacy path `{mount_path}/config` as well as the normalized path. This is well defined, as the legacy path only exists in the case of legacy bind mount.