[PATCH 23/40] bootlinux: fix missing make command when using 9P builds

[Luis Chamberlain <mcgrof@kernel.org>]

When bootlinux_9p is enabled, the kernel build happens on the host
and is shared with guests via 9P. However, the install step still
runs on the guest with 'make modules_install install', which requires
make to be present on the guest.

When the 9p build tasks were moved to a separate subrole, the
reorganization included logic to skip all dependency installation
when 9P is enabled, based on the assumption that guests wouldn't
need build tools. This assumption was incorrect - while guests don't
need the full kernel build toolchain, they still need basic tools
like 'make' to run the installation commands.

The current logic skips all dependency installation when 9P is enabled,
causing the error:
  "[Errno 2] No such file or directory: b'make'"

This commit adds a new install-minimal-deps task that ensures essential
build tools (make, gcc, kmod) are installed on guests even when using
9P builds. This allows the kernel installation to succeed while still
avoiding the full build dependency installation that isn't needed for
9P setups.

The fix properly separates the concerns: full build dependencies are
still skipped for 9P (since building happens on the host), but minimal
tools required for installation are ensured to be present.

Fixes: d0d54b450b0d ("bootlinux: Move 9p build tasks to a subrole")
Generated-by: Claude AI
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
 .../install-minimal-deps/debian/main.yml      | 19 +++++++++++++
 .../tasks/install-minimal-deps/main.yml       | 15 +++++++++++
 .../install-minimal-deps/redhat/main.yml      | 27 +++++++++++++++++++
 .../tasks/install-minimal-deps/suse/main.yml  | 13 +++++++++
 playbooks/roles/bootlinux/tasks/main.yml      |  8 ++++++
 5 files changed, 82 insertions(+)
 create mode 100644 playbooks/roles/bootlinux/tasks/install-minimal-deps/debian/main.yml
 create mode 100644 playbooks/roles/bootlinux/tasks/install-minimal-deps/main.yml
 create mode 100644 playbooks/roles/bootlinux/tasks/install-minimal-deps/redhat/main.yml
 create mode 100644 playbooks/roles/bootlinux/tasks/install-minimal-deps/suse/main.yml

diff --git a/playbooks/roles/bootlinux/tasks/install-minimal-deps/debian/main.yml b/playbooks/roles/bootlinux/tasks/install-minimal-deps/debian/main.yml
new file mode 100644
index 00000000..9fd6834f
--- /dev/null
+++ b/playbooks/roles/bootlinux/tasks/install-minimal-deps/debian/main.yml
@@ -0,0 +1,19 @@
+---
+# Install minimal dependencies needed for kernel installation on Debian
+# This is used when bootlinux_9p is enabled and the build happens on the host
+
+- name: Update apt cache
+  become: yes
+  become_method: sudo
+  apt:
+    update_cache: yes
+
+- name: Install minimal build tools for kernel installation
+  become: yes
+  become_method: sudo
+  apt:
+    name:
+      - make
+      - gcc
+      - kmod
+    state: present
\ No newline at end of file
diff --git a/playbooks/roles/bootlinux/tasks/install-minimal-deps/main.yml b/playbooks/roles/bootlinux/tasks/install-minimal-deps/main.yml
new file mode 100644
index 00000000..d1e9f675
--- /dev/null
+++ b/playbooks/roles/bootlinux/tasks/install-minimal-deps/main.yml
@@ -0,0 +1,15 @@
+---
+- name: Debian-specific minimal setup
+  ansible.builtin.import_tasks: debian/main.yml
+  when:
+    - ansible_os_family == "Debian"
+
+- name: SuSE-specific minimal setup
+  ansible.builtin.import_tasks: suse/main.yml
+  when:
+    - ansible_os_family == "Suse"
+
+- name: Red Hat-specific minimal setup
+  ansible.builtin.import_tasks: redhat/main.yml
+  when:
+    - ansible_os_family == "RedHat"
\ No newline at end of file
diff --git a/playbooks/roles/bootlinux/tasks/install-minimal-deps/redhat/main.yml b/playbooks/roles/bootlinux/tasks/install-minimal-deps/redhat/main.yml
new file mode 100644
index 00000000..c5cd6fbf
--- /dev/null
+++ b/playbooks/roles/bootlinux/tasks/install-minimal-deps/redhat/main.yml
@@ -0,0 +1,27 @@
+---
+# Install minimal dependencies needed for kernel installation on Red Hat
+# This is used when bootlinux_9p is enabled and the build happens on the host
+
+- name: Install minimal build tools for kernel installation
+  become: yes
+  become_method: sudo
+  yum:
+    name:
+      - make
+      - gcc
+      - kmod
+    state: present
+  when:
+    - ansible_facts['distribution_major_version']|int < 8
+
+- name: Install minimal build tools for kernel installation (dnf)
+  become: yes
+  become_method: sudo
+  dnf:
+    name:
+      - make
+      - gcc
+      - kmod
+    state: present
+  when:
+    - ansible_facts['distribution_major_version']|int >= 8
\ No newline at end of file
diff --git a/playbooks/roles/bootlinux/tasks/install-minimal-deps/suse/main.yml b/playbooks/roles/bootlinux/tasks/install-minimal-deps/suse/main.yml
new file mode 100644
index 00000000..a17768f9
--- /dev/null
+++ b/playbooks/roles/bootlinux/tasks/install-minimal-deps/suse/main.yml
@@ -0,0 +1,13 @@
+---
+# Install minimal dependencies needed for kernel installation on SUSE
+# This is used when bootlinux_9p is enabled and the build happens on the host
+
+- name: Install minimal build tools for kernel installation
+  become: yes
+  become_method: sudo
+  zypper:
+    name:
+      - make
+      - gcc
+      - kmod-compat
+    state: present
\ No newline at end of file
diff --git a/playbooks/roles/bootlinux/tasks/main.yml b/playbooks/roles/bootlinux/tasks/main.yml
index 2e5d950e..e908f313 100644
--- a/playbooks/roles/bootlinux/tasks/main.yml
+++ b/playbooks/roles/bootlinux/tasks/main.yml
@@ -19,6 +19,14 @@
   ansible.builtin.import_tasks:
     file: install-deps/main.yml
 
+# When using 9P builds, we still need make on the guest for modules_install
+- name: Install essential build tools for 9P builds
+  ansible.builtin.import_tasks:
+    file: install-minimal-deps/main.yml
+  when:
+    - bootlinux_9p|bool
+    - not workflow_linux_packaged|bool
+
 # We do this regardless of what distro you use
 - name: Install b4
   become: yes
-- 
2.47.2