deb-mirror - using an expired archive

[Zenaan Harkness]

On 12/3/14, Zenaan Harkness <zen at freedbms.net> wrote:
> Hi, is there an easy way to use a (local) sid repo which is a few weeks old?
...
> # add 1 year to sid Release file, then:
> $ sudo apt-get update
#error output

Also, --allow-unauthenticated similarly does not work (forgot to post
this output in first email sorry):
$ sudo apt-get --allow-unauthenticated update
Ign file: sid InRelease
Get:1 file: sid Release.gpg [836 B]
Get:2 file: sid Release [241 kB]
Err file: sid Release
Reading package lists... Done
W: An error occurred during the signature verification. The repository
is not updated and the previous index files will be used. GPG error:
file: sid Release: The following signatures were invalid: BADSIG
8B48AD6246925553 Debian Archive Automatic Signing Key (7.0/wheezy)
<ftpmaster at debian.org>
W: Failed to fetch file:/public/debian/debian/dists/sid/Release
W: Some index files failed to download. They have been ignored, or old
ones used instead.