configs/releng/: use mkinitcpio's microcode hook instead of external microcode images

This simplifies boot loader configuration, but custom PXE setups will
be forced to update theirs.

Implements https://gitlab.archlinux.org/archlinux/archiso/-/issues/226

8 files changed, 12 insertions, 14 deletions

diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 0592b94..a41a43d 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -15,6 +15,8 @@ Changed
 -------
 
 - Change releng profile's bootstrap tarball compression from gzip to zstd. zstd provides higher and faster compression.
+- Use mkinitcpio's ``microcode`` hook instead of external microcode images to simplify boot loader configuration.
+  Custom PXE setups will need to update their boot loader configuration.
 
 Deprecated
 ----------
diff --git a/configs/releng/airootfs/etc/mkinitcpio.conf.d/archiso.conf b/configs/releng/airootfs/etc/mkinitcpio.conf.d/archiso.conf
index b4b3095..98dd514 100644
--- a/configs/releng/airootfs/etc/mkinitcpio.conf.d/archiso.conf
+++ b/configs/releng/airootfs/etc/mkinitcpio.conf.d/archiso.conf
@@ -1,2 +1,2 @@
-HOOKS=(base udev modconf kms memdisk archiso archiso_loop_mnt archiso_pxe_common archiso_pxe_nbd archiso_pxe_http archiso_pxe_nfs block filesystems keyboard)
+HOOKS=(base udev microcode modconf kms memdisk archiso archiso_loop_mnt archiso_pxe_common archiso_pxe_nbd archiso_pxe_http archiso_pxe_nfs block filesystems keyboard)
 COMPRESSION="xz"
diff --git a/configs/releng/efiboot/loader/entries/01-archiso-x86_64-linux.conf b/configs/releng/efiboot/loader/entries/01-archiso-x86_64-linux.conf
index 2506f07..9df6b0a 100644
--- a/configs/releng/efiboot/loader/entries/01-archiso-x86_64-linux.conf
+++ b/configs/releng/efiboot/loader/entries/01-archiso-x86_64-linux.conf
@@ -1,7 +1,5 @@
 title    Arch Linux install medium (x86_64, UEFI)
 sort-key 01
 linux    /%INSTALL_DIR%/boot/x86_64/vmlinuz-linux
-initrd   /%INSTALL_DIR%/boot/intel-ucode.img
-initrd   /%INSTALL_DIR%/boot/amd-ucode.img
 initrd   /%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
 options  archisobasedir=%INSTALL_DIR% archisodevice=UUID=%ARCHISO_UUID%
diff --git a/configs/releng/efiboot/loader/entries/02-archiso-x86_64-speech-linux.conf b/configs/releng/efiboot/loader/entries/02-archiso-x86_64-speech-linux.conf
index 6928a10..865b37f 100644
--- a/configs/releng/efiboot/loader/entries/02-archiso-x86_64-speech-linux.conf
+++ b/configs/releng/efiboot/loader/entries/02-archiso-x86_64-speech-linux.conf
@@ -1,7 +1,5 @@
 title    Arch Linux install medium (x86_64, UEFI) with speech
 sort-key 02
 linux    /%INSTALL_DIR%/boot/x86_64/vmlinuz-linux
-initrd   /%INSTALL_DIR%/boot/intel-ucode.img
-initrd   /%INSTALL_DIR%/boot/amd-ucode.img
 initrd   /%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
 options  archisobasedir=%INSTALL_DIR% archisodevice=UUID=%ARCHISO_UUID% accessibility=on
diff --git a/configs/releng/grub/grub.cfg b/configs/releng/grub/grub.cfg
index 3486753..6b64947 100644
--- a/configs/releng/grub/grub.cfg
+++ b/configs/releng/grub/grub.cfg
@@ -63,13 +63,13 @@ timeout_style=menu
 menuentry "Arch Linux install medium (%ARCH%, ${archiso_platform})" --class arch --class gnu-linux --class gnu --class os --id 'archlinux' {
     set gfxpayload=keep
     linux /%INSTALL_DIR%/boot/%ARCH%/vmlinuz-linux archisobasedir=%INSTALL_DIR% archisodevice=UUID=${ARCHISO_UUID}
-    initrd /%INSTALL_DIR%/boot/intel-ucode.img /%INSTALL_DIR%/boot/amd-ucode.img /%INSTALL_DIR%/boot/%ARCH%/initramfs-linux.img
+    initrd /%INSTALL_DIR%/boot/%ARCH%/initramfs-linux.img
 }
 
 menuentry "Arch Linux install medium with speakup screen reader (%ARCH%, ${archiso_platform})" --hotkey s --class arch --class gnu-linux --class gnu --class os --id 'archlinux-accessibility' {
     set gfxpayload=keep
     linux /%INSTALL_DIR%/boot/%ARCH%/vmlinuz-linux archisobasedir=%INSTALL_DIR% archisodevice=UUID=${ARCHISO_UUID} accessibility=on
-    initrd /%INSTALL_DIR%/boot/intel-ucode.img /%INSTALL_DIR%/boot/amd-ucode.img /%INSTALL_DIR%/boot/%ARCH%/initramfs-linux.img
+    initrd /%INSTALL_DIR%/boot/%ARCH%/initramfs-linux.img
 }
 
 
diff --git a/configs/releng/grub/loopback.cfg b/configs/releng/grub/loopback.cfg
index 3ee0d33..d7d5ece 100644
--- a/configs/releng/grub/loopback.cfg
+++ b/configs/releng/grub/loopback.cfg
@@ -31,13 +31,13 @@ timeout_style=menu
 menuentry "Arch Linux install medium (%ARCH%, ${archiso_platform})" --class arch --class gnu-linux --class gnu --class os --id 'archlinux' {
     set gfxpayload=keep
     linux /%INSTALL_DIR%/boot/%ARCH%/vmlinuz-linux archisobasedir=%INSTALL_DIR% img_dev=UUID=${archiso_img_dev_uuid} img_loop="${iso_path}"
-    initrd /%INSTALL_DIR%/boot/intel-ucode.img /%INSTALL_DIR%/boot/amd-ucode.img /%INSTALL_DIR%/boot/%ARCH%/initramfs-linux.img
+    initrd /%INSTALL_DIR%/boot/%ARCH%/initramfs-linux.img
 }
 
 menuentry "Arch Linux install medium with speakup screen reader (%ARCH%, ${archiso_platform})" --hotkey s --class arch --class gnu-linux --class gnu --class os --id 'archlinux-accessibility' {
     set gfxpayload=keep
     linux /%INSTALL_DIR%/boot/%ARCH%/vmlinuz-linux archisobasedir=%INSTALL_DIR% img_dev=UUID=${archiso_img_dev_uuid} img_loop="${iso_path}" accessibility=on
-    initrd /%INSTALL_DIR%/boot/intel-ucode.img /%INSTALL_DIR%/boot/amd-ucode.img /%INSTALL_DIR%/boot/%ARCH%/initramfs-linux.img
+    initrd /%INSTALL_DIR%/boot/%ARCH%/initramfs-linux.img
 }
 
 
diff --git a/configs/releng/syslinux/archiso_pxe-linux.cfg b/configs/releng/syslinux/archiso_pxe-linux.cfg
index 305b8fd..2d681d8 100644
--- a/configs/releng/syslinux/archiso_pxe-linux.cfg
+++ b/configs/releng/syslinux/archiso_pxe-linux.cfg
@@ -5,7 +5,7 @@ It allows you to install Arch Linux or perform system maintenance.
 ENDTEXT
 MENU LABEL Arch Linux install medium (x86_64, NBD)
 LINUX ::/%INSTALL_DIR%/boot/x86_64/vmlinuz-linux
-INITRD ::/%INSTALL_DIR%/boot/intel-ucode.img,::/%INSTALL_DIR%/boot/amd-ucode.img,::/%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
+INITRD ::/%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
 APPEND archisobasedir=%INSTALL_DIR% archisodevice=UUID=%ARCHISO_UUID% archiso_nbd_srv=${pxeserver} cms_verify=y
 SYSAPPEND 3
 
@@ -16,7 +16,7 @@ It allows you to install Arch Linux or perform system maintenance.
 ENDTEXT
 MENU LABEL Arch Linux install medium (x86_64, NFS)
 LINUX ::/%INSTALL_DIR%/boot/x86_64/vmlinuz-linux
-INITRD ::/%INSTALL_DIR%/boot/intel-ucode.img,::/%INSTALL_DIR%/boot/amd-ucode.img,::/%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
+INITRD ::/%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
 APPEND archisobasedir=%INSTALL_DIR% archiso_nfs_srv=${pxeserver}:/run/archiso/bootmnt cms_verify=y
 SYSAPPEND 3
 
@@ -27,6 +27,6 @@ It allows you to install Arch Linux or perform system maintenance.
 ENDTEXT
 MENU LABEL Arch Linux install medium (x86_64, HTTP)
 LINUX ::/%INSTALL_DIR%/boot/x86_64/vmlinuz-linux
-INITRD ::/%INSTALL_DIR%/boot/intel-ucode.img,::/%INSTALL_DIR%/boot/amd-ucode.img,::/%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
+INITRD ::/%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
 APPEND archisobasedir=%INSTALL_DIR% archiso_http_srv=http://${pxeserver}/ cms_verify=y
 SYSAPPEND 3
diff --git a/configs/releng/syslinux/archiso_sys-linux.cfg b/configs/releng/syslinux/archiso_sys-linux.cfg
index 950dc48..d5898d1 100644
--- a/configs/releng/syslinux/archiso_sys-linux.cfg
+++ b/configs/releng/syslinux/archiso_sys-linux.cfg
@@ -5,7 +5,7 @@ It allows you to install Arch Linux or perform system maintenance.
 ENDTEXT
 MENU LABEL Arch Linux install medium (x86_64, BIOS)
 LINUX /%INSTALL_DIR%/boot/x86_64/vmlinuz-linux
-INITRD /%INSTALL_DIR%/boot/intel-ucode.img,/%INSTALL_DIR%/boot/amd-ucode.img,/%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
+INITRD /%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
 APPEND archisobasedir=%INSTALL_DIR% archisodevice=UUID=%ARCHISO_UUID%
 
 # Accessibility boot option
@@ -16,5 +16,5 @@ It allows you to install Arch Linux or perform system maintenance with speech fe
 ENDTEXT
 MENU LABEL Arch Linux install medium (x86_64, BIOS) with ^speech
 LINUX /%INSTALL_DIR%/boot/x86_64/vmlinuz-linux
-INITRD /%INSTALL_DIR%/boot/intel-ucode.img,/%INSTALL_DIR%/boot/amd-ucode.img,/%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
+INITRD /%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
 APPEND archisobasedir=%INSTALL_DIR% archisodevice=UUID=%ARCHISO_UUID% accessibility=on