From a49899d0607d3c54014a8f4180c8d558192579c8 Mon Sep 17 00:00:00 2001
From: Anonymous <>
Date: Wed, 26 Nov 2025 23:30:07 +0800
Subject: [PATCH 1/2] fix: debian 11 backports is in archive and can block
 installation

---
 debi.sh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/debi.sh b/debi.sh
index e32f63b..3b6ef24 100755
--- a/debi.sh
+++ b/debi.sh
@@ -215,9 +215,12 @@ has_cloud_kernel() {
 # Returns 0 if available, 1 if not
 has_backports() {
     case $suite in
-        buster|bullseye|oldoldstable|bookworm|oldstable|trixie|stable|forky|testing) return
+        bookworm|oldstable|trixie|stable|forky|testing) return
     esac
 
+    # buster|bullseye|oldoldstable DO have backports, but it's in archive.debian.org now
+    # considering mirrors support varies and the code complexity we must accommodate, we just treat them as no backports available
+
     warn "No backports kernel is available for $suite"
 
     return 1

From 2c028de296b61bb06da6b705dd2c29caed6ad96b Mon Sep 17 00:00:00 2001
From: Anonymous <>
Date: Thu, 27 Nov 2025 00:56:49 +0800
Subject: [PATCH 2/2] fix: only add backports if has backports

---
 debi.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/debi.sh b/debi.sh
index 3b6ef24..10ebcd2 100755
--- a/debi.sh
+++ b/debi.sh
@@ -594,7 +594,7 @@ apt_components=main
 [ "$apt_non_free_firmware" = true ] && apt_components="$apt_components non-free-firmware"
 
 apt_services=updates
-[ "$apt_backports" = true ] && apt_services="$apt_services, backports"
+[ "$apt_backports" = true ] && has_backports && apt_services="$apt_services, backports"
 
 installer_directory="/boot/debian-$suite"