Merge pull request #2359 from flatcar/ader1990/fix-arm64-vnc-console-output

sys-kernel: enable kernel virtio vnc output

Author: ader1990

build_library/grub.cfg

@@ -79,7 +79,7 @@ if [ -z "$linux_console" ]; then
         terminal_output console serial_com0
     elif [ "$grub_platform" = efi ]; then
         if [ "$grub_cpu" = arm64 ]; then
-            set linux_console="console=ttyAMA0,115200n8"
+            set linux_console="console=ttyAMA0,115200n8 console=tty0"
         else
             set linux_console="console=ttyS0,115200n8 console=tty0"
        fi

changelog/changes/2026-04-28-enable-vnc-console-logs-on-arm.md

@@ -0,0 +1 @@
+- Enable VNC console serial logs on ARM64 QEMU/KVM instances ([flatcar/scripts#2359](https://github.com/flatcar/scripts/pull/2359))

sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/files/commonconfig-6.12

@@ -169,12 +169,12 @@ CONFIG_DM_UEVENT=y
 CONFIG_DM_VERITY=m
 CONFIG_DM_ZERO=m
 CONFIG_DNS_RESOLVER=y
-CONFIG_DRM=m
+CONFIG_DRM=y
 CONFIG_DRM_FBDEV_EMULATION=y
 CONFIG_DRM_QXL=m
 CONFIG_DRM_SIMPLEDRM=m
 CONFIG_DRM_TTM_HELPER=m
-CONFIG_DRM_VIRTIO_GPU=m
+CONFIG_DRM_VIRTIO_GPU=y
 CONFIG_DST_CACHE=y
 CONFIG_DUMMY=m
 CONFIG_DYNAMIC_DEBUG=y
@@ -1009,7 +1009,7 @@ CONFIG_VIA_RHINE=m
 CONFIG_VIA_RHINE_MMIO=y
 CONFIG_VIRTIO_BALLOON=m
 CONFIG_VIRTIO_BLK=m
-CONFIG_VIRTIO_CONSOLE=m
+CONFIG_VIRTIO_CONSOLE=y
 CONFIG_VIRTIO_FS=m
 CONFIG_VIRTIO_INPUT=m
 CONFIG_VIRTIO_MMIO=y