Update to mkinitcpio runing microcode hook [Solved]

Mr Green · 2024-03-14 11:41:13

Have made changes to remove initrd options for microcode in grub.cfg qnd ran grub-mkconfig -o /boot/grub/grub.cfg

Added microhook to mkinitcpio.conf and updatede initcpio

mkinitcpio -p linux

After reboot it looks like grub has added back in /boot/amd-ucode.img to iniitrd

Still have /boot/amd-ucode.img present [which is still part of amd-ucode package]

Little confused ;-(

Last edited by Mr Green (2024-03-14 18:07:23)

seth · 2024-03-14 15:46:08

Please post your mkinitcpio.conf, /boot/grub/grub.cfg and /etc/default/grub - generally the mkinitcpio.conf has little to no impact on grub.cfg
Did you remove the ALL_microcode entries in /etc/mkinitcpio.d/linux*.preset

Mr Green · 2024-03-14 17:44:36

# vim:set ft=sh
# MODULES
# The following modules are loaded before any boot hooks are
# run.  Advanced users may wish to specify all system modules
# in this array.  For instance:
#     MODULES=(piix ide_disk reiserfs)
MODULES=()

# BINARIES
# This setting includes any additional binaries a given user may
# wish into the CPIO image.  This is run last, so it may be used to
# override the actual binaries included by a given hook
# BINARIES are dependency parsed, so you may safely ignore libraries
BINARIES=()

# FILES
# This setting is similar to BINARIES above, however, files are added
# as-is and are not parsed in any way.  This is useful for config files.
FILES=()

# HOOKS
# This is the most important setting in this file.  The HOOKS control the
# modules and scripts added to the image, and what happens at boot time.
# Order is important, and it is recommended that you do not change the
# order in which HOOKS are added.  Run 'mkinitcpio -H <hook name>' for
# help on a given hook.
# 'base' is _required_ unless you know precisely what you are doing.
# 'udev' is _required_ in order to automatically load modules
# 'filesystems' is _required_ unless you specify your fs modules in MODULES
# Examples:
##   This setup specifies all modules in the MODULES setting above.
##   No raid, lvm2, or encrypted root is needed.
#    HOOKS=(base)
#
##   This setup will autodetect all modules for your system and should
##   work as a sane default
#    HOOKS=(base udev autodetect block filesystems)
#
##   This setup will generate a 'full' image which supports most systems.
##   No autodetection is done.
#    HOOKS=(base udev block filesystems)
#
##   This setup assembles a pata mdadm array with an encrypted root FS.
##   Note: See 'mkinitcpio -H mdadm' for more information on raid devices.
#    HOOKS=(base udev block mdadm encrypt filesystems)
#
##   This setup loads an lvm2 volume group on a usb device.
#    HOOKS=(base udev block lvm2 filesystems)
#
##   NOTE: If you have /usr on a separate partition, you MUST include the
#    usr, fsck and shutdown hooks.
HOOKS=(base udev autodetect microcode modconf block filesystems keyboard fsck)
# COMPRESSION
# Use this to compress the initramfs image. By default, zstd compression
# is used. Use 'cat' to create an uncompressed image.
#COMPRESSION="gzip"
#COMPRESSION="bzip2"
#COMPRESSION="lzma"
#COMPRESSION="xz"
#COMPRESSION="lzop"
#COMPRESSION="lz4"

# COMPRESSION_OPTIONS
# Additional options for the compressor
#COMPRESSION_OPTIONS=()

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
insmod part_gpt
insmod part_msdos
if [ -s $prefix/grubenv ]; then
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}

function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
search --no-floppy --fs-uuid --set=root d514c291-e8f6-4859-a0bf-568efd4d7bab
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=en_GB
  insmod gettext
fi
terminal_input console
terminal_output gfxterm
if [ x$feature_timeout_style = xy ] ; then
  set timeout_style=menu
  set timeout=5
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
  set timeout=5
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Arch Linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-d514c291-e8f6-4859-a0bf-568efd4d7bab' {
	load_video
	set gfxpayload=keep
	insmod gzio
	insmod part_gpt
	insmod ext2
	search --no-floppy --fs-uuid --set=root d514c291-e8f6-4859-a0bf-568efd4d7bab
	echo	'Loading Linux linux ...'
	linux	/boot/vmlinuz-linux root=UUID=d514c291-e8f6-4859-a0bf-568efd4d7bab rw  loglevel=3 quiet audit=0
	echo	'Loading initial ramdisk ...'
	initrd	/boot/amd-ucode.img /boot/initramfs-linux.img
}
submenu 'Advanced options for Arch Linux' $menuentry_id_option 'gnulinux-advanced-d514c291-e8f6-4859-a0bf-568efd4d7bab' {
	menuentry 'Arch Linux, with Linux linux' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-advanced-d514c291-e8f6-4859-a0bf-568efd4d7bab' {
		load_video
		set gfxpayload=keep
		insmod gzio
		insmod part_gpt
		insmod ext2
		search --no-floppy --fs-uuid --set=root d514c291-e8f6-4859-a0bf-568efd4d7bab
		echo	'Loading Linux linux ...'
		linux	/boot/vmlinuz-linux root=UUID=d514c291-e8f6-4859-a0bf-568efd4d7bab rw  loglevel=3 quiet audit=0
		echo	'Loading initial ramdisk ...'
		initrd	/boot/amd-ucode.img /boot/initramfs-linux.img
	}
	menuentry 'Arch Linux, with Linux linux (fallback initramfs)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-fallback-d514c291-e8f6-4859-a0bf-568efd4d7bab' {
		load_video
		set gfxpayload=keep
		insmod gzio
		insmod part_gpt
		insmod ext2
		search --no-floppy --fs-uuid --set=root d514c291-e8f6-4859-a0bf-568efd4d7bab
		echo	'Loading Linux linux ...'
		linux	/boot/vmlinuz-linux root=UUID=d514c291-e8f6-4859-a0bf-568efd4d7bab rw  loglevel=3 quiet audit=0
		echo	'Loading initial ramdisk ...'
		initrd	/boot/amd-ucode.img /boot/initramfs-linux-fallback.img
	}
	menuentry 'Arch Linux, with Linux linux (booster initramfs)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-linux-booster-d514c291-e8f6-4859-a0bf-568efd4d7bab' {
		load_video
		set gfxpayload=keep
		insmod gzio
		insmod part_gpt
		insmod ext2
		search --no-floppy --fs-uuid --set=root d514c291-e8f6-4859-a0bf-568efd4d7bab
		echo	'Loading Linux linux ...'
		linux	/boot/vmlinuz-linux root=UUID=d514c291-e8f6-4859-a0bf-568efd4d7bab rw  loglevel=3 quiet audit=0
		echo	'Loading initial ramdisk ...'
		initrd	/boot/amd-ucode.img /boot/booster-linux.img
	}
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/25_bli ###
if [ "$grub_platform" = "efi" ]; then
  insmod bli
fi
### END /etc/grub.d/25_bli ###

### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
if [ "$grub_platform" = "efi" ]; then
	fwsetup --is-supported
	if [ "$?" = 0 ]; then
		menuentry 'UEFI Firmware Settings' $menuentry_id_option 'uefi-firmware' {
			fwsetup
		}
	fi
fi
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg
fi
### END /etc/grub.d/41_custom ###

### BEGIN /etc/grub.d/60_memtest86+ ###
if [ "${grub_platform}" == "pc" ]; then
    menuentry "Memory Tester (memtest86+)" --class memtest86 --class gnu --class tool {
        search --fs-uuid --no-floppy --set=root  d514c291-e8f6-4859-a0bf-568efd4d7bab
        linux16 /boot/memtest86+/memtest.bin 
    }
fi
### END /etc/grub.d/60_memtest86+ ###

### BEGIN /etc/grub.d/60_memtest86+-efi ###
if [ "${grub_platform}" == "efi" ]; then
    menuentry "Memory Tester (memtest86+)" --class memtest86 --class gnu --class tool {
        if loadfont unicode ; then
            set gfxmode=1024x768,800x600,auto
            set gfxpayload=800x600,1024x768
            terminal_output gfxterm
        fi
        search --fs-uuid --no-floppy --set=root  d514c291-e8f6-4859-a0bf-568efd4d7bab
        linux /boot/memtest86+/memtest.efi 
    }
fi
### END /etc/grub.d/60_memtest86+-efi ###

# GRUB boot loader configuration

GRUB_DEFAULT=0
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="Arch"
GRUB_CMDLINE_LINUX_DEFAULT="loglevel=3 quiet audit=0"
GRUB_CMDLINE_LINUX=""

# Preload both GPT and MBR modules so that they are not missed
GRUB_PRELOAD_MODULES="part_gpt part_msdos"

# Uncomment to enable booting from LUKS encrypted devices
#GRUB_ENABLE_CRYPTODISK=y

# Set to 'countdown' or 'hidden' to change timeout behavior,
# press ESC key to display menu.
GRUB_TIMEOUT_STYLE=menu

# Uncomment to use basic console
GRUB_TERMINAL_INPUT=console

# Uncomment to disable graphical terminal
#GRUB_TERMINAL_OUTPUT=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `videoinfo'
GRUB_GFXMODE=auto

# Uncomment to allow the kernel use the same resolution used by grub
GRUB_GFXPAYLOAD_LINUX=keep

# Uncomment if you want GRUB to pass to the Linux kernel the old parameter
# format "root=/dev/xxx" instead of "root=/dev/disk/by-uuid/xxx"
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
GRUB_DISABLE_RECOVERY=true

# Uncomment and set to the desired menu colors.  Used by normal and wallpaper
# modes only.  Entries specified as foreground/background.
#GRUB_COLOR_NORMAL="light-blue/black"
#GRUB_COLOR_HIGHLIGHT="light-cyan/blue"

# Uncomment one of them for the gfx desired, a image background or a gfxtheme
#GRUB_BACKGROUND="/path/to/wallpaper"
#GRUB_THEME="/path/to/gfxtheme"

# Uncomment to get a beep at GRUB start
#GRUB_INIT_TUNE="480 440 1"

# Uncomment to make GRUB remember the last selection. This requires
# setting 'GRUB_DEFAULT=saved' above.
#GRUB_SAVEDEFAULT=true

# Uncomment to disable submenus in boot menu
#GRUB_DISABLE_SUBMENU=y

# Probing for other operating systems is disabled for security reasons. Read
# documentation on GRUB_DISABLE_OS_PROBER, if still want to enable this
# functionality install os-prober and uncomment to detect and include other
# operating systems.
#GRUB_DISABLE_OS_PROBER=false

# mkinitcpio preset file for the 'linux' package

#ALL_config="/etc/mkinitcpio.conf"
ALL_kver="/boot/vmlinuz-linux"
ALL_microcode=(/boot/*-ucode.img)

PRESETS=('default' 'fallback')

#default_config="/etc/mkinitcpio.conf"
default_image="/boot/initramfs-linux.img"
#default_uki="/efi/EFI/Linux/arch-linux.efi"
#default_options="--splash /usr/share/systemd/bootctl/splash-arch.bmp"

#fallback_config="/etc/mkinitcpio.conf"
fallback_image="/boot/initramfs-linux-fallback.img"
#fallback_uki="/efi/EFI/Linux/arch-linux-fallback.efi"
fallback_options="-S autodetect"

Can see microcode in linux.preset.... which I will remove.

As you say that will not affect grub...

Thanks Seth ;-)

Last edited by Mr Green (2024-03-14 17:46:36)

seth · 2024-03-14 17:50:02

grub-mkconfig can find ucodes itself and has a predefined list:

GRUB_EARLY_INITRD_LINUX_STOCK="intel-uc.img intel-ucode.img amd-uc.img amd-ucode.img early_ucode.cpio microcode.cpio"

Add

GRUB_EARLY_INITRD_LINUX_STOCK=""

to your /etc/default/grub - it should™ override the defaults and your present ucode gets ignored.

Mr Green · 2024-03-14 18:07:02

Ok, made the changes and run mkinicpio and grub-mkconfig.. rebooted, amd-ucode.img is no longer in initrd [grub]

Thank you again seth, will mark thread as Solved ;-)

Arch Linux

#1 2024-03-14 11:41:13

Update to mkinitcpio runing microcode hook [Solved]

#2 2024-03-14 15:46:08

Re: Update to mkinitcpio runing microcode hook [Solved]

#3 2024-03-14 17:44:36

Re: Update to mkinitcpio runing microcode hook [Solved]

#4 2024-03-14 17:50:02

Re: Update to mkinitcpio runing microcode hook [Solved]

#5 2024-03-14 18:07:02

Re: Update to mkinitcpio runing microcode hook [Solved]

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