From 92515aced540c57057cf7c238b76797ed304f74e Mon Sep 17 00:00:00 2001
From: Roman Lebedev <lebedev.ri@gmail.com>
Date: Sat, 27 Sep 2025 22:25:32 +0300
Subject: [PATCH] Debian: ensure smooth upgrade paths when files are moved
 between packages

Upgrade path from bcachefs-tools 1.31.2 -> 1.31.5 is broken,
stuff was moved from -dkms package into main tools package,
and that famously does not work out of the box.

Ensure that any incompatible bcachefs-kernel-dkms package version
is truly marked as being replaced.

See https://www.debian.org/doc/debian-policy/ch-relationships.html#s-replaces
See https://wiki.debian.org/PackageTransition, case #10
---
 debian/control | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/debian/control b/debian/control
index ec1841b2..0345f84a 100644
--- a/debian/control
+++ b/debian/control
@@ -39,6 +39,8 @@ Recommends: bcachefs-kernel-dkms (= ${binary:Version}),
             initramfs-tools | linux-initramfs-tool,
 Breaks: bcachefs-kernel-dkms (<< ${binary:Version}),
         bcachefs-kernel-dkms (>> ${binary:Version}),
+Replaces: bcachefs-kernel-dkms (<< ${binary:Version}),
+          bcachefs-kernel-dkms (>> ${binary:Version}),
 Description: bcachefs userspace tools
  Userspace tools for bcachefs, a modern copy on write, checksumming, multi
  device filesystem.