From c4c5ef732670f8b23f20b1215af49cdceacd28a3 Mon Sep 17 00:00:00 2001
From: Andrew Ammerlaan <andrewammerl...@gentoo.org>
Date: Tue, 25 Jun 2024 16:12:39 +0200
Subject: [PATCH] kernel-install.eclass: move mount-boot check to
 dist-kernel-utils.eclass

ebuilds and eclasses using dist-kernel_reinstall_initramfs should also
have the check for mounted /boot and ESP. We can do this safely via
mount-boot-utils.eclass which does not export any phases.

Signed-off-by: Andrew Ammerlaan <andrewammerl...@gentoo.org>
---
 eclass/dist-kernel-utils.eclass | 41 +++++++++++++++++++++++++++-----
 eclass/kernel-install.eclass    | 42 +++++++--------------------------
 2 files changed, 43 insertions(+), 40 deletions(-)

diff --git a/eclass/dist-kernel-utils.eclass b/eclass/dist-kernel-utils.eclass
index 13137f8c863c8..b357cfe6d228c 100644
--- a/eclass/dist-kernel-utils.eclass
+++ b/eclass/dist-kernel-utils.eclass
@@ -26,7 +26,7 @@ case ${EAPI} in
        *) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac

-inherit toolchain-funcs
+inherit mount-boot-utils toolchain-funcs

 # @FUNCTION: dist-kernel_get_image_path
 # @DESCRIPTION:
@@ -79,11 +79,40 @@ dist-kernel_install_kernel() {
        local image=${2}
        local map=${3}

-       ebegin "Installing the kernel via installkernel"
-       # note: .config is taken relatively to System.map;
-       # initrd relatively to bzImage
-       ARCH=$(tc-arch-kernel) installkernel "${version}" "${image}" "${map}"
-       eend ${?} || die -n "Installing the kernel failed"
+       local success=
+       # not an actual loop but allows error handling with 'break'
+       while :; do
+               nonfatal mount-boot_check_status || break
+
+               ebegin "Installing the kernel via installkernel"
+               # note: .config is taken relatively to System.map;
+               # initrd relatively to bzImage
+ ARCH=$(tc-arch-kernel) installkernel "${version}" "${image}" "${map}" || break
+               eend ${?} || die -n "Installing the kernel failed"
+
+               success=1
+               break
+       done
+
+       if [[ ! ${success} ]]; then
+               # Try to read dist-kernel identifier to more accurately 
instruct users
+               local kernel
+               local 
k_id_file=${image%$(dist-kernel_get_image_path)}/dist-kernel
+               if [[ -f ${k_id_file} ]]; then
+                       kernel=\'\=$(<${k_id_file})\'
+               else
+                       # Fallback string if identifier is not found
+                       kernel="<name of your kernel pakcage>:<kernel version>"
+               fi
+
+               eerror
+               eerror "The kernel was not deployed successfully. Inspect the 
failure"
+               eerror "in the logs above and once you resolve the problems 
please"
+               eerror "run the equivalent of the following command to try 
again:"
+               eerror
+               eerror "    emerge --config ${kernel}"
+ die "Kernel install failed, please fix the problems and run emerge --config"
+       fi
 }

 # @FUNCTION: dist-kernel_reinstall_initramfs
diff --git a/eclass/kernel-install.eclass b/eclass/kernel-install.eclass
index f512d815fe098..a572597bc6fa3 100644
--- a/eclass/kernel-install.eclass
+++ b/eclass/kernel-install.eclass
@@ -18,8 +18,6 @@
 # location and System.map.
 #
 # The eclass exports src_test, pkg_postinst and pkg_postrm.
-# Additionally, the inherited mount-boot eclass exports pkg_pretend.
-# It also stubs out pkg_preinst and pkg_prerm defined by mount-boot.

 # @ECLASS_VARIABLE: KERNEL_IUSE_GENERIC_UKI
 # @PRE_INHERIT
@@ -50,7 +48,7 @@ case ${EAPI} in
        *) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac

-inherit dist-kernel-utils mount-boot multiprocessing toolchain-funcs
+inherit dist-kernel-utils mount-boot-utils multiprocessing toolchain-funcs

 SLOT="${PV}"
 IUSE="+initramfs test"
@@ -526,6 +524,10 @@ kernel-install_test() {
 kernel-install_pkg_pretend() {
        debug-print-function ${FUNCNAME} "${@}"

+       # Check, but don't die because we can fix the problem and then
+       # emerge --config ... to re-run installation.
+       nonfatal mount-boot_check_status
+
        if ! has_version -d sys-kernel/linux-firmware; then
                ewarn "sys-kernel/linux-firmware not found installed on your 
system."
                ewarn "This package provides various firmware files that may be 
needed"
@@ -665,27 +667,8 @@ kernel-install_install_all() {
                fi
        fi

-       local success=
-       # not an actual loop but allows error handling with 'break'
-       while :; do
-               nonfatal mount-boot_check_status || break
-
-               nonfatal dist-kernel_install_kernel "${module_ver}" \
-                       "${kernel_dir}/${image_path}" 
"${kernel_dir}/System.map" || break
-
-               success=1
-               break
-       done
-
-       if [[ ! ${success} ]]; then
-               eerror
-               eerror "The kernel files were copied to disk successfully but the 
kernel"
-               eerror "was not deployed successfully.  Once you resolve the 
problems,"
-               eerror "please run the equivalent of the following command to try 
again:"
-               eerror
-               eerror "    emerge --config ${CATEGORY}/${PN}:${SLOT}"
- die "Kernel install failed, please fix the problems and run emerge --config ${CATEGORY}/${PN}:${SLOT}"
-       fi
+       dist-kernel_install_kernel "${module_ver}" 
"${kernel_dir}/${image_path}" \
+               "${kernel_dir}/System.map"
 }

 # @FUNCTION: kernel-install_pkg_postinst
@@ -718,15 +701,6 @@ kernel-install_pkg_postinst() {
        fi
 }

-# @FUNCTION: kernel-install_pkg_prerm
-# @DESCRIPTION:
-# Stub out mount-boot.eclass.
-kernel-install_pkg_prerm() {
-       debug-print-function ${FUNCNAME} "${@}"
-
-       # (no-op)
-}
-
 # @FUNCTION: kernel-install_pkg_postrm
 # @DESCRIPTION:
 # Clean up the generated initramfs from the removed kernel directory.
@@ -774,5 +748,5 @@ kernel-install_compress_modules() {

 fi

-EXPORT_FUNCTIONS src_test pkg_preinst pkg_postinst pkg_prerm pkg_postrm
+EXPORT_FUNCTIONS src_test pkg_preinst pkg_postinst pkg_postrm
 EXPORT_FUNCTIONS pkg_config pkg_pretend

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