The current implementation of the config archive stores archived configs in /config/archive, where all but the latest config are gzipped. Trying to load one from config mode results in an error:
vyos@vyos# load /config/archive/config.boot.1.gz
Traceback (most recent call last):
File "/usr/libexec/vyos/vyos-load-config.py", line 59, in <module>
with open(canonical_path, 'r') as f:
FileNotFoundError: [Errno 2] No such file or directory: '/opt/vyatta/etc/config//config/archive/config.boot.1.gz'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/libexec/vyos/vyos-load-config.py", line 64, in <module>
config_file = f.read()
File "/usr/lib/python3.7/codecs.py", line 322, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0x8b in position 1: invalid start byte
[edit]
vyos@vyos# load archive/config.boot.1.gz
Traceback (most recent call last):
File "/usr/libexec/vyos/vyos-load-config.py", line 60, in <module>
config_file = f.read()
File "/usr/lib/python3.7/codecs.py", line 322, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0x8b in position 1: invalid start byte
[edit]This is because vyos-load-config.py expects a plaintext file so it needs to be manually extracted first.