Devuan asciiもRelease Candidateが出てそろそろ正式版になりそうです．てことで手元のDevuan jessie i386環境をascii環境にdist-upgradeしてみました．
DevuanはDebianからフォークした脱Systemdなディストリビューションです．コードネームはjessieはDebianと同じですがその次のバージョンから独自になっていて，Devuan asciiはDebian stretch相当になります．
アップグレードのドキュメントは以下にありました．
うーんシンプル．念の為Debianの文章も参考にします．
これらの文章と違うところはsources.list編集時にapt edit-sourcesコマンドを使ったくらいです．今回はこんな感じに．
diff --git a/apt/sources.list b/apt/sources.list
index 142945f..afaa14d 100644
--- a/apt/sources.list
+++ b/apt/sources.list
@@ -1,16 +1,16 @@
-# deb http://jp.mirror.devuan.org/merged/ jessie main
+# deb http://jp.mirror.devuan.org/merged/ ascii main
-deb http://jp.mirror.devuan.org/merged/ jessie main non-free contrib
-deb-src http://jp.mirror.devuan.org/merged/ jessie main non-free contrib
+deb http://jp.mirror.devuan.org/merged/ ascii main non-free contrib
+deb-src http://jp.mirror.devuan.org/merged/ ascii main non-free contrib
-# jessie-security, previously known as 'volatile'
-deb http://jp.mirror.devuan.org/merged/ jessie-security main contrib non-free
-deb-src http://jp.mirror.devuan.org/merged/ jessie-security main contrib non-free
+# ascii-security, previously known as 'volatile'
+deb http://jp.mirror.devuan.org/merged/ ascii-security main contrib non-free
+deb-src http://jp.mirror.devuan.org/merged/ ascii-security main contrib non-free
-# jessie-updates, previously known as 'volatile'
-deb http://jp.mirror.devuan.org/merged/ jessie-updates main contrib non-free
-deb-src http://jp.mirror.devuan.org/merged/ jessie-updates main contrib non-free
+# ascii-updates, previously known as 'volatile'
+deb http://jp.mirror.devuan.org/merged/ ascii-updates main contrib non-free
+deb-src http://jp.mirror.devuan.org/merged/ ascii-updates main contrib non-free
-# jessie-backports, previously on backports.debian.org
-deb http://jp.mirror.devuan.org/merged/ jessie-backports main contrib non-free
-deb-src http://jp.mirror.devuan.org/merged/ jessie-backports main contrib non-free
+# ascii-backports, previously on backports.debian.org
+deb http://jp.mirror.devuan.org/merged/ ascii-backports main contrib non-free
+deb-src http://jp.mirror.devuan.org/merged/ ascii-backports main contrib non-free
特に問題なく処理は進んでいましたが，apt dist-upgradeでエラーが発生しました．bluemanで以下のようなエラーとなりました．
Setting up blueman (2.0.4-1) ...
Reloading system message bus config...Error org.freedesktop.DBus.Error.FileNotFound: Failed to open "/etc/dbus-1/system.conf": No such file or directory
invoke-rc.d: initscript dbus, action "reload" failed.
dpkg: error processing package blueman (--configure):
subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
blueman
E: Sub-process /usr/bin/dpkg returned an error code (1)
一旦削除して再起動後導入し直したら導入に成功しました．
$ sudo apt remove blueman
$ sudo reboot
$ sudo apt install blueman
ということでシンプルなシステムだったせいかさっくりとdist-upgradeに成功しました :)