From 64cd328363e5637d809b5f1c39349922bd7c2ba5 Mon Sep 17 00:00:00 2001
From: "CanbiZ (MickLesk)" <47820557+MickLesk@users.noreply.github.com>
Date: Tue, 4 Aug 2026 16:55:08 +0200
Subject: [PATCH] tools.func: never delete ubuntu.sources (or other distro base
 sources) as orphaned (#16250)

---
 misc/tools.func | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/misc/tools.func b/misc/tools.func
index 60e1f2073..0f13f8c53 100644
--- a/misc/tools.func
+++ b/misc/tools.func
@@ -2040,8 +2040,9 @@ cleanup_orphaned_sources() {
     local basename_file
     basename_file=$(basename "$sources_file")
 
-    # NEVER remove debian.sources - this is the standard Debian repository
-    if [[ "$basename_file" == "debian.sources" ]]; then
+    # NEVER remove the distro's own base sources file (debian.sources,
+    # ubuntu.sources, ...)
+    if [[ "$basename_file" == "$(get_os_info id).sources" ]]; then
       continue
     fi
 
@@ -2113,7 +2114,7 @@ ensure_apt_working() {
       # Step 4: More aggressive - remove all third-party sources
       msg_warn "APT update still failing, removing third-party sources"
       find /etc/apt/sources.list.d/ -type f \( -name "*.sources" -o -name "*.list" \) \
-        ! -name "debian.sources" -delete 2>/dev/null || true
+        ! -name "$(get_os_info id).sources" -delete 2>/dev/null || true
 
       # Final attempt
       if ! $STD apt update; then