linux-uefi-arm64-cloud.config: enable ACPI so things boot #8377
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## Walkthrough
The linux-uefi-arm64-cloud kernel configuration was extensively revised by removing many AWS and Azure-specific virtualization features and EFI support options. The updated config enables SYSVIPC, POSIX message queues, BPF syscall and JIT, kernel debugging, expanded control groups, and namespaces support. Virtualization drivers were consolidated and expanded with multiple virtio drivers enabled. Networking features such as netfilter, nftables, IPVS, bridging, VLAN, scheduling, and WireGuard were broadly enabled. Filesystem support was enhanced with overlayfs, zswap, ACL, and security features. Security options now include SELinux, AppArmor, encrypted keys, and persistent keyrings. Sound, USB, input, watchdog, DRM, framebuffer, hardware RNG, and ARM64-specific options were retained or enhanced.
## Possibly related PRs
- armbian/build#8117: The main PR removes EFI support entirely from the ARM64 cloud kernel config, while this PR removes EFI support but enables other virtualization and security features, showing directly related changes in EFI and kernel configuration.
## Suggested reviewers
- lanefu
- igorpecovnik
- SuperKali
## Estimated code review effort
🎯 1 (Trivial) | ⏱️ ~3 minutes
The changes are confined to a single kernel configuration file involving enabling and disabling various kernel options without code logic or structural changes, resulting in low review complexity and effort.Note ⚡️ Unit Test Generation is now available in beta!Learn more here, or try it out under "Finishing Touches" below. 📜 Recent review detailsConfiguration used: CodeRabbit UI 📒 Files selected for processing (1)
🚧 Files skipped from review as they are similar to previous changes (1)
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Actionable comments posted: 2
🧹 Nitpick comments (1)
config/kernel/linux-uefi-arm64-cloud.config (1)
255-256: DWARF5 + BTF debug info balloons image size
CONFIG_DEBUG_INFO_DWARF5=y&CONFIG_DEBUG_INFO_BTF=yroughly double build time and can add ≈ 200 MB tovmlinux/modules.*.
For distro kernels that never ship the unstripped images, consider:-CONFIG_DEBUG_INFO_DWARF5=y -CONFIG_DEBUG_INFO_BTF=y +# CONFIG_DEBUG_INFO_DWARF5 is not set +# CONFIG_DEBUG_INFO_BTF is not setUnless you explicitly need CO-RE/BPF or full DWARF5 in cloud builds.
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Plan: Pro
📒 Files selected for processing (1)
config/kernel/linux-uefi-arm64-cloud.config(4 hunks)
🧰 Additional context used
🧠 Learnings (2)
📓 Common learnings
Learnt from: EvilOlaf
PR: armbian/build#8328
File: lib/functions/compilation/patch/drivers_network.sh:542-545
Timestamp: 2025-06-24T10:08:40.313Z
Learning: In the Armbian build system, when a PR removes build support for a specific kernel version, version check issues for that removed version become practically irrelevant even if they appear incorrect in isolation. Context about which kernel versions are being deprecated/removed is important for understanding the impact of version-related code changes.
Learnt from: libiunc
PR: armbian/build#8033
File: config/kernel/linux-starfive2-vendor.config:43-43
Timestamp: 2025-03-31T12:57:13.880Z
Learning: For StarFive2 platform kernel configurations, maintain alignment with vendor-provided configurations rather than modifying security settings like SECCOMP. This ensures hardware compatibility as intended by the manufacturer.
Learnt from: pyavitz
PR: armbian/build#8361
File: config/kernel/linux-sunxi64-edge.config:594-597
Timestamp: 2025-07-06T16:27:45.349Z
Learning: In Armbian sunxi64-edge kernel configurations, PCI/PCIe support may be enabled for future-proofing purposes to support upcoming Allwinner SoCs like the T536 that include PCIe Gen2 interfaces, even if current primary targets like H616 lack PCIe controllers. This forward-looking approach prepares the configuration for next-generation hardware in the same SoC family.
Learnt from: EvilOlaf
PR: armbian/build#0
File: :0-0
Timestamp: 2025-06-16T03:24:00.458Z
Learning: In Armbian board configuration files (.csc), the standard pattern is to have only one line as a comment describing the board hardware specifications. This single-line description typically includes the SoC model, core count, RAM options, and key features like connectivity options, storage interfaces, and special features.
Learnt from: EvilOlaf
PR: armbian/build#8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:42:09.086Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, KERNELSOURCE is explicitly declared when using unofficial or 3rd party kernel repositories (like the "dev" branch using https://github.com/apritzel/linux), but can be omitted when using the standard mainline kernel (like the "edge" branch) since it will fall back to the default mainline source.
Learnt from: Grippy98
PR: armbian/build#8152
File: lib/functions/configuration/interactive.sh:209-266
Timestamp: 2025-05-05T12:35:07.143Z
Learning: For the interactive kernel selection in Armbian, KERNEL_MAJOR_MINOR and KERNEL_DESCRIPTION are parsed from family.conf but deliberately not set as environment variables to avoid potential interference with other parts of the build system.
Learnt from: EvilOlaf
PR: armbian/build#8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:40:52.109Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, when KERNELSOURCE is not explicitly declared in a case branch, the system falls back to a default KERNELSOURCE value, so missing KERNELSOURCE declarations are not critical issues.
config/kernel/linux-uefi-arm64-cloud.config (7)
Learnt from: libiunc
PR: armbian/build#8033
File: config/kernel/linux-starfive2-vendor.config:43-43
Timestamp: 2025-03-31T12:57:13.880Z
Learning: For StarFive2 platform kernel configurations, maintain alignment with vendor-provided configurations rather than modifying security settings like SECCOMP. This ensures hardware compatibility as intended by the manufacturer.
Learnt from: pyavitz
PR: armbian/build#8361
File: config/kernel/linux-sunxi64-edge.config:594-597
Timestamp: 2025-07-06T16:27:45.349Z
Learning: In Armbian sunxi64-edge kernel configurations, PCI/PCIe support may be enabled for future-proofing purposes to support upcoming Allwinner SoCs like the T536 that include PCIe Gen2 interfaces, even if current primary targets like H616 lack PCIe controllers. This forward-looking approach prepares the configuration for next-generation hardware in the same SoC family.
Learnt from: EvilOlaf
PR: armbian/build#0
File: :0-0
Timestamp: 2025-06-16T03:24:00.458Z
Learning: In Armbian board configuration files (.csc), the standard pattern is to have only one line as a comment describing the board hardware specifications. This single-line description typically includes the SoC model, core count, RAM options, and key features like connectivity options, storage interfaces, and special features.
Learnt from: EvilOlaf
PR: armbian/build#8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:40:52.109Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, when KERNELSOURCE is not explicitly declared in a case branch, the system falls back to a default KERNELSOURCE value, so missing KERNELSOURCE declarations are not critical issues.
Learnt from: EvilOlaf
PR: armbian/build#8328
File: lib/functions/compilation/patch/drivers_network.sh:542-545
Timestamp: 2025-06-24T10:08:40.313Z
Learning: In the Armbian build system, when a PR removes build support for a specific kernel version, version check issues for that removed version become practically irrelevant even if they appear incorrect in isolation. Context about which kernel versions are being deprecated/removed is important for understanding the impact of version-related code changes.
Learnt from: EvilOlaf
PR: armbian/build#8330
File: config/sources/families/sun55iw3.conf:32-36
Timestamp: 2025-06-25T03:42:09.086Z
Learning: In Armbian build system configuration files like config/sources/families/*.conf, KERNELSOURCE is explicitly declared when using unofficial or 3rd party kernel repositories (like the "dev" branch using https://github.com/apritzel/linux), but can be omitted when using the standard mainline kernel (like the "edge" branch) since it will fall back to the default mainline source.
Learnt from: Grippy98
PR: armbian/build#8152
File: lib/functions/configuration/interactive.sh:209-266
Timestamp: 2025-05-05T12:35:07.143Z
Learning: For the interactive kernel selection in Armbian, KERNEL_MAJOR_MINOR and KERNEL_DESCRIPTION are parsed from family.conf but deliberately not set as environment variables to avoid potential interference with other parts of the build system.
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- GitHub Check: Shell script analysis
🔇 Additional comments (2)
config/kernel/linux-uefi-arm64-cloud.config (2)
14-16: IKCONFIG exposed ‒ good callKeeping
CONFIG_IKCONFIG=yandCONFIG_IKCONFIG_PROC=yis handy for later auditing which options shipped in the running kernel. 👍
41-43: ACPI enablement un-blocks UEFI boot path
CONFIG_ACPI=yis the critical bit that was missing for cloud images on arm64-UEFI. This should resolve the early-boot hang you described.
SuperKali
reviewed
Jul 18, 2025
@SuperKali https://refuge.armsurvivors.icu/lanefu/lanefu_25.08.0-trunk_Uefi-arm64_trixie_cloud_6.12.39/ |
coderabbitai
bot
added
BSP
Here we could use AI to divide it back to sections following by opening a PR with those changes. POC for doing something with AI: https://github.com/armbian/armbian.github.io/pull/52/files In case someone finds this interesting enough for integrating .I will proceed on this, but dunno when. |
github-actions
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size/medium
I took the liberty to force-push a fix:
That way the 2nd commit reflects only the actual changes done. |
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Another "problem" for not getting minimal kernel from this command is |
This was referenced Jul 21, 2025
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This was referenced Jul 26, 2025
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Description
We Need ACPI enabled for uefi-arm64-cloud images to boot successfully. Changes look drastic because I used
./compile.sh kernel-configand it sanitized things.Resolves: not booting and 100% cpu and blank screen.
Pairs will with #8376
Tech debt:
enable_extension image-output-qcow2