更新debian 10的源的时候，突然报错，主要是说源从稳定源切换到不稳定源，连忙查了一下原因。
‘Suite’ value from ‘stable’ to ‘oldstable’
root@debian:# apt-get update Get:1 http://security.debian.org/debian-security buster/updates InRelease [65.4 kB] Get:2 http://deb.debian.org/debian buster InRelease [122 kB] Get:3 http://deb.debian.org/debian buster-updates InRelease [51.9 kB] Get:4 http://nginx.org/packages/mainline/debian buster InRelease [3604 B] Get:5 http://nginx.org/packages/mainline/debian buster/nginx amd64 Packages [46.3 kB] Reading package lists... Done E: Repository 'http://security.debian.org/debian-security buster/updates InRelease' changed its 'Suite' value from 'stable' to 'oldstable' N: This must be accepted explicitly before updates for this repository can be applied. See apt-secure(8) manpage for details. N: Repository 'http://deb.debian.org/debian buster InRelease' changed its 'Version' value from '10.9' to '10.10' E: Repository 'http://deb.debian.org/debian buster InRelease' changed its 'Suite' value from 'stable' to 'oldstable' N: This must be accepted explicitly before updates for this repository can be applied. See apt-secure(8) manpage for details. E: Repository 'http://deb.debian.org/debian buster-updates InRelease' changed its 'Suite' value from 'stable-updates' to 'oldstable-updates' N: This must be accepted explicitly before updates for this repository can be applied. See apt-secure(8) manpage for details.
运行下面的命令成功解决。
apt-get --allow-releaseinfo-change update