Commit 57d6912c9e for frr

commit 57d6912c9edf9cec16e1f44e762d275da7c4b6c2
Author: Minghan Chan <mhchann082@gmail.com>
Date:   Wed Oct 21 11:03:35 2026 +0800

    ci: install linux-modules-extra only when the kernel has one

    Since 2026-10-20 the amd64 Test jobs fail before any topotest runs:

      E: Unable to locate package linux-modules-extra-7.0.0-1017-azure

    GitHub's runners have started booting the azure 7.0 kernel, both on
    the ubuntu-24.04 image (7.0.0-1017.17~24.04.1) and on ubuntu-26.04,
    which ubuntu-latest now resolves to. That kernel is packaged without
    the linux-modules-extra split: vrf, mpls_router, mpls_iptunnel and
    the other network modules are all in linux-modules-7.0.0-1017-azure.
    26.04 also has no linux-modules-extra-azure metapackage.

    Add the two extra packages only when apt knows the running kernel's
    linux-modules-extra, so runners still on 6.17 install what they did
    before.

    Signed-off-by: Minghan Chan <mhchann082@gmail.com>

diff --git a/.github/workflows/github-ci.yml b/.github/workflows/github-ci.yml
index c9de0c2c16..9c97197ec7 100644
--- a/.github/workflows/github-ci.yml
+++ b/.github/workflows/github-ci.yml
@@ -257,10 +257,17 @@ jobs:
           # Retry loop for apt-get update in case of transient mirror failures
           APT_RETRIES=3
           for i in $(seq 1 ${APT_RETRIES}); do sudo apt-get update -y && break || sleep 10; done
+          # Some kernels (azure 7.0 on 24.04 and 26.04) have no
+          # linux-modules-extra package; vrf and mpls are in linux-modules.
+          MODPKGS="linux-modules-${MODPKGVER}"
+          if apt-cache show linux-modules-extra-${MODPKGVER} >/dev/null 2>&1; then
+            MODPKGS+=" linux-modules-extra-azure linux-modules-extra-${MODPKGVER}"
+          fi
+          echo "MODPKGS: ${MODPKGS}"
           # Retry install as well; mirrors can fail between update and install.
           install_ok=0
           for i in $(seq 1 ${APT_RETRIES}); do
-            sudo apt-get install -y linux-modules-extra-azure linux-modules-${MODPKGVER} linux-modules-extra-${MODPKGVER} python3-xmltodict && install_ok=1 && break || sleep 10
+            sudo apt-get install -y ${MODPKGS} python3-xmltodict && install_ok=1 && break || sleep 10
           done
           [ "${install_ok}" -eq 1 ] || { echo "ERROR: apt-get install failed after ${APT_RETRIES} attempts" >&2; exit 1; }
           # Github is running old kernels but installing newer packages :(