kernel: add dependency of initramfs-tools for linux-image package

[amazingfate]

Description

I'm trying to build an iso with armbian's kernel by live-build script: https://salsa.debian.org/live-team/live-build/-/blob/master/test/rebuild.sh?ref_type=heads, while the script is installing kernel and initramfs in a single apt command, and it would fall if kernel doesn't depend on initramfs. initramfs has to be configured before kernel image package.

Summary by CodeRabbit

• Bug Fixes
  • Kernel package now declares explicit dependency on boot utilities, ensuring required components are properly installed alongside the kernel.

[coderabbitai]

📝 Walkthrough

Walkthrough

The linux-image Debian package control metadata now declares a runtime dependency on initramfs-tools by adding a Depends field to the generated DEBIAN/control file during kernel package compilation.

Changes

Cohort / File(s)	Summary
Kernel Debian Package Metadata lib/functions/compilation/kernel-debs.sh	Added initramfs-tools as a runtime dependency to the linux-image package control file.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 A hop, a skip, and one line more,
The kernel now declares what it's for—
initramfs-tools, forever bound,
In metadata where dependencies are found! 📦✨

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the primary change: adding an initramfs-tools dependency to the linux-image package, which matches the single-line change in the DEBIAN/control file metadata.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[coderabbitai]

🧹 Nitpick comments (1)

lib/functions/compilation/kernel-debs.sh (1)

268-268: Consider allowing linux-initramfs-tool as an alternative provider.

Debian's stock linux-image-* packages declare the dependency as initramfs-tools | linux-initramfs-tool so dracut (which Provides: linux-initramfs-tool) can be substituted as the initramfs generator. The hook scheme in this very file already accommodates that — see the comment on line 279: "recent versions of dracut and initramfs-tools will obey this" via $INITRD. Hard-pinning to initramfs-tools here forecloses dracut-based setups even though the postinst hooks already work with both.

This still satisfies the PR's motivation (live-build's single-shot apt install will pull in initramfs-tools when nothing else provides linux-initramfs-tool).

♻️ Proposed change

-		Depends: initramfs-tools
+		Depends: initramfs-tools | linux-initramfs-tool

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@lib/functions/compilation/kernel-debs.sh` at line 268, Replace the hard
dependency on initramfs-tools with a disjunctive dependency to allow alternative
providers: update the package dependency line that currently reads "Depends:
initramfs-tools" to include "linux-initramfs-tool" as an alternative (e.g.,
"Depends: initramfs-tools | linux-initramfs-tool"); ensure the postinst/postrm
hook behavior that uses the INITRD variable and the existing dracut
compatibility comments remains unchanged so dracut (which Provides:
linux-initramfs-tool) can satisfy the dependency.

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Nitpick comments:
In `@lib/functions/compilation/kernel-debs.sh`:
- Line 268: Replace the hard dependency on initramfs-tools with a disjunctive
dependency to allow alternative providers: update the package dependency line
that currently reads "Depends: initramfs-tools" to include
"linux-initramfs-tool" as an alternative (e.g., "Depends: initramfs-tools |
linux-initramfs-tool"); ensure the postinst/postrm hook behavior that uses the
INITRD variable and the existing dracut compatibility comments remains unchanged
so dracut (which Provides: linux-initramfs-tool) can satisfy the dependency.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 81966e49-7f88-440e-acb2-5f9750e2d0d9

📥 Commits

Reviewing files that changed from the base of the PR and between 39fdcef and 52f9779.

📒 Files selected for processing (1)

• lib/functions/compilation/kernel-debs.sh

[github-actions]

✅ This PR has been reviewed and approved — all set for merge!