Knowledge Base

tl;dr

rm /var/lib/apt/lists/*

The fix

If you encounter an error that resembles the following, on Devuan GNU/Linux, there is a fix for it!

# sudo apt-get update
Reading package lists... Done
E: Repository 'http://packages.roundr.devuan.org/merged ceres InRelease' changed its 'Label' value from 'Master' to 'Devuan'
N: This must be accepted explicitly before updates for this repository can be applied. See apt-secure(8) manpage for details.

There's a new label in use, it seems. Big deal, except for the fact you can't really get around it. The apt- secure(8) page does not seem to provide any answers. To view the current labels for the enabled repos:

# apt policy
Package files:
 100 /var/lib/dpkg/status
     release a=now
 500 http://packages.devuan.org/merged ceres/non-free i386 Packages
     release v=1.0.0,o=Devuan,a=unstable,n=ceres,l=Master,c=non-free,b=i386
     origin packages.devuan.org
 500 http://packages.devuan.org/merged ceres/contrib i386 Packages
     release v=1.0.0,o=Devuan,a=unstable,n=ceres,l=Master,c=contrib,b=i386
     origin packages.devuan.org
 500 http://packages.devuan.org/merged ceres/main i386 Packages
     release v=1.0.0,o=Devuan,a=unstable,n=ceres,l=Master,c=main,b=i386
     origin packages.devuan.org
Pinned packages:

The fix is to remove the cached lists for the repositories and fetch it all again.

rm /var/lib/apt/lists/*

That's all there is to it! Then run apt-get update again, and you're back on your way.

References

Weblinks

1. man page apt_preferences(5)

Local resources

1. bash autocomplete for apt and apt-get