6.12.63-gentoo-dist - no amd early/patch dmesg?

[GenIT]

Hi,

I am using the precompiled 6.12.63-gentoo-dist kernel.

I have in the package.use; sys-kernel/linux-firmware initramfs savedconfig -compress-xz -compress-zstd

I have /etc/portage/package.license/linux-firmware; sys-kernel/linux-firmware linux-fw-redistributable

I also manually created the /boot/amd-uc.img even though I am using the initramfs, beacuse I wasn't seeing any microcode output in dmesg.

This is all I get for microcode in dmesg;

Code: Select all

sudo dmesg | grep -i microcode
[    1.092252] microcode: Current revision: 0x0a201030

I read online that using the precompiled gentoo-dist kernel with the initramfs, the amd microcode is intergrated into it, and therefore the reason for not getting any dmesg output. I don't know if there is any truth to this.

I thought I was suppose to be seeing similar output like shown on the wiki;

Code: Select all

dmesg | grep microcode

[    0.584603] microcode: microcode: updated early to new patch_level=0x06000832
[    0.868036] microcode: CPU0: patch_level=0x06000832
[    0.868116] microcode: CPU1: patch_level=0x06000832
[    0.868196] microcode: CPU2: patch_level=0x06000832
[    0.868277] microcode: CPU3: patch_level=0x06000832
[    0.868360] microcode: CPU4: patch_level=0x06000832
[    0.868451] microcode: CPU5: patch_level=0x06000832
[    0.868538] microcode: CPU6: patch_level=0x06000832
[    0.868619] microcode: CPU7: patch_level=0x06000832
[    0.868718] microcode: Microcode Update Driver: v2.01 <tigran@aivazian.fsnet.co.uk>, Peter Oruba

I don't know if Gentoo does things different with the precompiled gentoo-dist kernel with the initramfs?

THANKS

[NeddySeagoon]

GenIT,

Welcome to Gentoo.

There are three places where microcode is stored in your system.
1. Inside the CPU, when it's made.
2. In the BIOS/Firmware, which you can update
3. In linux-firmware, which the kernel can use.

At boot, the CPU starts by using it's internal microcode. It's all there is.
When the firmware initialses and before it runs the bootloader, it may update the microcode.
Once the kernel starts, it can update the microcod too.

As part of the microcode update, the kernel checks the revision of the microcode.
If there is nothing to do, the update is skipped, so the messages about updating the microcode do not appear.

The question you need to research is do you have the newest microcode for your CPU?
It doesn't matter if it's internal to the CPU, the motherboard firmware or the kernel, as long as it's correct.

[GenIT]

Hi NeddySeagoon,

I'm not new to Linux or Gentoo, as I always say; Don't let the post count fool you... LOL

I already understand the things you mentioned, but in every distro I've used I have seen the microcode. It's always been my understanding that If it's been
updated, we don't see an update on this once that has appeared, but that the patch levels are always suppose to appear.

I noticed the Wiki mentions this...

https://wiki.gentoo.org/wiki/AMD_microcode

Taken below from the Wiki

Code: Select all

Note
It is possible the microcode has already been fully updated by the system's firmware vendor. In that case the dmesg output does not contain the update log message.

In any case the output will show a patch_level

Here's a screen shot in Slackware I just took showing in dmesg the output. I should see this same ouput in Gentoo too.

Slackware /var/log/dmesg screenshot
https://iili.io/fptzoCu.jpg

It's been a long time since I've used Gentoo, so I was only trying to figure out some of the things I mentioned, sorry I didn't originally elaborate better.

When using a precompiled kernel like I am using 6.12.63-gentoo-dist kernel and installing the firmware emerge --ask sys-kernel/linux-firmware during the firmware install,
does it install the /boot/amd-uc.img?

If I'm using a precompiled kernel do we even need /boot/amd-uc.img, because I have read as I mentioned, the microcode is supposedly
intergrated into the initramfs and therefore no need to have /boot/amd-uc.img?

Or regardless of compilig or using a precompiled kernel, we do use /boot/amd-uc.img and then we have to manually create it?

Also in /etc/dracut.conf.d/microcode.conf do I use add early_microcode="yes"?

Do I also run dracut as dracut --early-microcode?

The problem for me is that I didn't notice any mention of, how to go about this when using a precompiled kernel, and I've never used initramfs before doing things as manual as in Gentoo.


THANKS and thanks for the welcome too!

[Nowa]

Could you please share the output of 'emerge --config gentoo-kernel', we will be able to see there what dracut and installkernel are doing.

If I'm using a precompiled kernel do we even need /boot/amd-uc.img, because I have read as I mentioned, the microcode is supposedly
intergrated into the initramfs and therefore no need to have /boot/amd-uc.img?

Correct, dracut builds the microcode image and prepends it to the regular initramfs. sys-kernel/ugrd is a different story, for that generator a seperate amd-uc.img is required (installkernel will take care of that automatically).

Please also share the output of 'emerge --info sys-kernel/linux-firmware'. You might have USE=initramfs disabled, which disables the creation/building of the microcode image (in dracut as well as installkernel). Since you are using the distribution kernel, please also ensure that USE=dist-kernel is enabled (which delegates the creation of the microcode image to installkernel/dracut instead of making one in the ebuild).

Also in /etc/dracut.conf.d/microcode.conf do I use add early_microcode="yes"?

This is the default (if USE=initramfs is enabled), so it should not be required.

[GenIT]

Hi Nowa,

I'm still in Slackware at the moment, because I wanted to test this in it.

I also just compiled and updated the kernel in Slackware now to 6.12.71, it has these for the microcode;

CONFIG_BLK_DEV_INITRD=Y
CONFIG_MICROCODE=y
CONFIG_MICROCODE_INTEL=Y
CONFIG_MICROCODE_AMD=y

The screenshot before in Slackware was on 5.15.193.

So before I jump back into Gentoo, because it's been a long time since I've messed around with the microcode, I'm just
trying to understand first, if the behaviour in the 6x kernels has changed?

Because now in the logs in Slackware for 6.12.71, this is all I see too;

Code: Select all

[    0.595182] microcode: Current revision: 0x0a201030

And of course now this is looking like the same from Gentoo.

But, is this now normal on the 6.x kernels, there are no longer any patch level, early, or Update Driver version messages? Because
I remember seeing these in older kernels, just can't remember what versions.

THANKS

[Nowa]

It should still show you that the microcode is updated (unless you are already at the latest revision):

Here's my machine:

Code: Select all

[    0.560940] microcode: Current revision: 0x00000104
[    0.560941] microcode: Updated early from: 0x000000ea

[GenIT]

Ok I'm back at Larry's Farm!

According to the Slack Crowd seeing this in the 6.x kernels is normal/expected, as long as nothing is updated.

Code: Select all

[    1.092252] microcode: Current revision: 0x0a201030 

For the initramfs I have it in my /etc/portage/package.use file;

Code: Select all

sys-kernel/linux-firmware initramfs savedconfig -compress-xz -compress-zstd

I have USE=dist-kernel, in the make.conf, I forgot to add in USE=initramfs, so I'll add it and redo the kernel over.

Sorry for the late replies, usually when I post something I'm right back on it.

So for this first cmd, I would of thought if I'm using the precompiled kernel there is no config.

sudo emerge --config gentoo-kernel

Code: Select all

No packages found.

sudo emerge --info sys-kernel/linux-firmware

Code: Select all

sudo emerge --info sys-kernel/linux-firmware
Portage 3.0.72 (python 3.13.11-final-0, default/linux/amd64/23.0/desktop, gcc-15, glibc-2.42-r5, 6.12.63-gentoo-dist x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-6.12.63-gentoo-dist-x86_64-AMD_Ryzen_5_5600X_6-Core_Processor-with-glibc2.42
KiB Mem:    32761632 total,  29252908 free
KiB Swap:          0 total,         0 free
Timestamp of repository gentoo: Mon, 09 Feb 2026 08:15:00 +0000
Head commit of repository gentoo: d37916dc2c7c2e3fb75376afd9fe453eac2a2b1e
Timestamp of repository guru: Mon, 09 Feb 2026 08:01:06 +0000
Head commit of repository guru: 390ce95e861d2f068a7fb450908411a4b05a0529

sh bash 5.3_p9
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USE="X a52 aac acl acpi alsa amd64 avif branding bzip2 cairo cdr cet crypt dbus dist-kernel dri dts dvdr elogind encode exif flac gdbm gif gpm gtk gui iconv icu ipv6 jpeg jpegxl lcms libnotify libtirpc mad mng mp3 mp4 mpeg multilib ncurses nvidia ogg opengl openmp pam pango pcre pdf pipewire png policykit ppds pulseaudio qml qt6 readline screencast sdl seccomp sound spell ssl startup-notification svg test-rust threads tiff truetype udev udisks unicode upower usb vorbis vulkan webp wxwidgets x264 xattr xcb xft xml xorg xv xvid zlib" ABI_X86="64" ADA_TARGET="gcc_15" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_anon authn_dbm authn_file authz_dbm authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir env expires ext_filter file_cache filter headers include info log_config logio mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx avx2 f16c fma3 mmx mmxext pclmul popcnt rdrand sha sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax navcom oncore skytraq superstar2 tsip tripmate tnt" GRUB_PLATFORMS="efi-64" GUILE_SINGLE_TARGET="3-0" GUILE_TARGETS="3-0" INPUT_DEVICES="libinput" KERNEL="linux" L10N="en en-US" LCD_DEVICES="bayrad cfontz glk hd44780 lb216 lcdm001 mtxorb text" LLVM_TARGETS="X86" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php8-3" POSTGRES_TARGETS="postgres17" PYTHON_SINGLE_TARGET="python3_13" PYTHON_TARGETS="python3_13" RUBY_TARGETS="ruby32 ruby33" VIDEO_CARDS="nvidia" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipp2p iface geoip fuzzy condition tarpit sysrq proto logmark ipmark dhcpmac delude chaos account"
USER="root"
USERLAND="GNU"
USE_EXPAND="ABI_MIPS ABI_S390 ABI_X86 ADA_TARGET ALSA_CARDS AMDGPU_TARGETS APACHE2_MODULES APACHE2_MPMS CALLIGRA_FEATURES CAMERAS COLLECTD_PLUGINS CPU_FLAGS_ARM CPU_FLAGS_PPC CPU_FLAGS_X86 CURL_QUIC CURL_SSL ELIBC GPSD_PROTOCOLS GRUB_PLATFORMS GUILE_SINGLE_TARGET GUILE_TARGETS INPUT_DEVICES KERNEL L10N LCD_DEVICES LIBREOFFICE_EXTENSIONS LLVM_SLOT LLVM_TARGETS LUA_SINGLE_TARGET LUA_TARGETS NGINX_MODULES_HTTP NGINX_MODULES_MAIL NGINX_MODULES_STREAM OFFICE_IMPLEMENTATION OPENMPI_FABRICS OPENMPI_OFED_FEATURES OPENMPI_RM PERL_FEATURES PHP_TARGETS POSTGRES_TARGETS PYTHON_SINGLE_TARGET PYTHON_TARGETS QEMU_SOFTMMU_TARGETS QEMU_USER_TARGETS RUBY_TARGETS RUST_SYSROOTS SANE_BACKENDS SELINUX_POLICY_TYPES UWSGI_PLUGINS VIDEO_CARDS VOICEMAIL_STORAGE XTABLES_ADDONS"
USE_EXPAND_HIDDEN="ABI_MIPS ABI_S390 CPU_FLAGS_ARM CPU_FLAGS_PPC ELIBC KERNEL"
USE_EXPAND_IMPLICIT="ARCH ELIBC KERNEL"
USE_EXPAND_UNPREFIXED="ARCH"
USE_EXPAND_VALUES_ARCH="alpha amd64 arm arm64 arm64-macos hppa loong m68k mips ppc ppc64 riscv s390 sparc x64-macos x64-solaris x86"
USE_EXPAND_VALUES_ELIBC="bionic Darwin glibc mingw musl SunOS"
USE_EXPAND_VALUES_KERNEL="Darwin linux SunOS"
USE_ORDER="env:pkg:conf:defaults:pkginternal:features:repo:env.d"
VIDEO_CARDS="nvidia"
XAUTHORITY="/home/foo/.Xauthority"
XDG_CONFIG_DIRS="/etc/xdg"
XDG_CURRENT_DESKTOP="i3"
XDG_DATA_DIRS="/usr/local/share:/usr/share"
XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipp2p iface geoip fuzzy condition tarpit sysrq proto logmark ipmark dhcpmac delude chaos account"
ac_cv_c_undeclared_builtin_options="none needed"
enable_year2038="no"
gl_cv_compiler_check_decl_option="-Werror=implicit-function-declaration"
gl_cv_func_getcwd_path_max="yes"

=================================================================
                        Package Settings
=================================================================

sys-kernel/linux-firmware-20260110::gentoo was built with the following:
USE="dist-kernel initramfs redistributable savedconfig -bindist -compress-xz -compress-zstd -deduplicate (-unknown-license)" ABI_X86="(64)"

THANKS!

P.S. So I added in the USE=initramfs, and redid the kernel over. Let me make sure I have this correct, so now there is no need for amd-uc.img in /boot, it' s now bundled in the initramfs-6.12.63-gentoo-dist.img?

[GenIT]

Here's sudo emerge --info sys-kernel/linux-firmware after updating the kernel now with USE=initramfs - THANKS

Code: Select all

sudo emerge --info sys-kernel/linux-firmware
Portage 3.0.72 (python 3.13.11-final-0, default/linux/amd64/23.0/desktop, gcc-15, glibc-2.42-r5, 6.12.63-gentoo-dist x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-6.12.63-gentoo-dist-x86_64-AMD_Ryzen_5_5600X_6-Core_Processor-with-glibc2.42
KiB Mem:    32761628 total,  29650920 free
KiB Swap:          0 total,         0 free
Timestamp of repository gentoo: Mon, 09 Feb 2026 08:15:00 +0000
Head commit of repository gentoo: d37916dc2c7c2e3fb75376afd9fe453eac2a2b1e
Timestamp of repository guru: Mon, 09 Feb 2026 08:01:06 +0000
Head commit of repository guru: 390ce95e861d2f068a7fb450908411a4b05a0529

sh bash 5.3_p9
ld GNU ld (Gentoo 2.45.1 p1) 2.45.1
app-misc/pax-utils:        1.3.8::gentoo
app-shells/bash:           5.3_p9::gentoo
dev-build/autoconf:        2.72-r6::gentoo
dev-build/automake:        1.18.1::gentoo
dev-build/cmake:           4.1.4::gentoo
dev-build/libtool:         2.5.4::gentoo
dev-build/make:            4.4.1-r102::gentoo
dev-build/meson:           1.9.2::gentoo
dev-lang/perl:             5.42.0-r1::gentoo
dev-lang/python:           3.13.11::gentoo, 3.14.0_p1::gentoo
dev-lang/rust-bin:         1.91.0::gentoo
llvm-core/clang:           21.1.8::gentoo
llvm-core/lld:             21.1.8::gentoo
llvm-core/llvm:            21.1.8::gentoo
sys-apps/baselayout:       2.18::gentoo
sys-apps/openrc:           0.62.10::gentoo
sys-apps/sandbox:          2.46::gentoo
sys-devel/binutils:        2.45.1::gentoo
sys-devel/binutils-config: 5.6::gentoo
sys-devel/gcc:             15.2.1_p20251122::gentoo
sys-devel/gcc-config:      2.12.2::gentoo
sys-kernel/linux-headers:  6.12::gentoo (virtual/os-headers)
sys-libs/glibc:            2.42-r5::gentoo
Repositories:

gentoo
    location: /var/db/repos/gentoo
    sync-type: rsync
    sync-uri: rsync://rsync.gentoo.org/gentoo-portage
    priority: -1000
    volatile: False
    sync-rsync-extra-opts: 
    sync-rsync-verify-metamanifest: yes
    sync-rsync-verify-jobs: 1
    sync-rsync-verify-max-age: 3

guru
    location: /var/db/repos/guru
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/guru.git
    masters: gentoo
    volatile: False

Binary Repositories:

gentoobinhost
    priority: 1
    sync-uri: https://distfiles.gentoo.org/releases/amd64/binpackages/23.0/x86-64

Installed sets: @custom
ABI="amd64"
ABI_X86="64"
ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="*"
ACCEPT_PROPERTIES="*"
ACCEPT_RESTRICT="*"
ADA_TARGET="gcc_15"
APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_anon authn_dbm authn_file authz_dbm authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir env expires ext_filter file_cache filter headers include info log_config logio mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias"
ARCH="amd64"
AUTOCLEAN="no"
BINPKG_COMPRESS="zstd"
BINPKG_FORMAT="gpkg"
BINPKG_GPG_SIGNING_BASE_COMMAND="/usr/bin/flock /run/lock/portage-binpkg-gpg.lock /usr/bin/gpg --sign --armor [PORTAGE_CONFIG]"
BINPKG_GPG_SIGNING_DIGEST="SHA512"
BINPKG_GPG_VERIFY_BASE_COMMAND="/usr/bin/gpg --verify --batch --no-tty --no-auto-check-trustdb --status-fd 2 [PORTAGE_CONFIG] [SIGNATURE]"
BINPKG_GPG_VERIFY_GPG_HOME="/etc/portage/gnupg"
BOOTSTRAP_USE="unicode pkg-config split-usr xml python_targets_python3_13 python_single_target_python3_13 multilib zstd cet"
BROOT=""
CALLIGRA_FEATURES="karbon sheets words"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe -march=znver3"
CFLAGS_amd64="-m64"
CFLAGS_x32="-mx32"
CFLAGS_x86="-m32 -mfpmath=sse"
CHOST="x86_64-pc-linux-gnu"
CHOST_amd64="x86_64-pc-linux-gnu"
CHOST_x32="x86_64-pc-linux-gnux32"
CHOST_x86="i686-pc-linux-gnu"
CLEAN_DELAY="5"
COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog"
COLLISION_IGNORE="/boot/dtbs/* /lib/modules/*"
COLORTERM="truecolor"
COMMON_FLAGS="-O2 -pipe -march=znver3"
CONFIG_PROTECT="/etc"
CONFIG_PROTECT_MASK="/etc/ca-certificates /etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/sandbox.d"
CPU_FLAGS_X86="aes avx avx2 f16c fma3 mmx mmxext pclmul popcnt rdrand sha sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3"
CXXFLAGS="-O2 -pipe -march=znver3"
DEFAULT_ABI="amd64"
DISPLAY=":0"
DISTDIR="/var/cache/distfiles"
ELIBC="glibc"
EMERGE_DEFAULT_OPTS="--ask --jobs=1 --load-average=11 --keep-going --verbose"
EMERGE_WARNING_DELAY="10"
ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY GDK_PIXBUF_MODULE_FILE GOBIN GOPATH PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR XDG_STATE_HOME"
EPREFIX=""
EROOT="/"
ESYSROOT="/"
FCFLAGS="-O2 -pipe -march=znver3"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-multi-instance buildpkg-live config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync merge-wait multilib-strict network-sandbox news pid-sandbox pkgdir-index-trusted preserve-libs protect-owned qa-unresolved-soname-deps sandbox strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FETCHCOMMAND="wget -t 3 -T 60 --passive-ftp -O "${DISTDIR}/${FILE}" "${URI}""
FETCHCOMMAND_RSYNC="rsync -LtvP "${URI}" "${DISTDIR}/${FILE}""
FETCHCOMMAND_SFTP="bash -c "x=\${2#sftp://} ; host=\${x%%/*} ; port=\${host##*:} ; host=\${host%:*} ; [[ \${host} = \${port} ]] && port= ; eval \"declare -a ssh_opts=(\${3})\" ; exec sftp \${port:+-P \${port}} \"\${ssh_opts[@]}\" \"\${host}:/\${x#*/}\" \"\$1\"" sftp "${DISTDIR}/${FILE}" "${URI}" "${PORTAGE_SSH_OPTS}""
FETCHCOMMAND_SSH="bash -c "x=\${2#ssh://} ; host=\${x%%/*} ; port=\${host##*:} ; host=\${host%:*} ; [[ \${host} = \${port} ]] && port= ; exec rsync --rsh=\"ssh \${port:+-p\${port}} \${3}\" -avP \"\${host}:/\${x#*/}\" \"\$1\"" rsync "${DISTDIR}/${FILE}" "${URI}" "${PORTAGE_SSH_OPTS}""
FFLAGS="-O2 -pipe -march=znver3"
GCC_SPECS=""
GENTOO_MIRRORS="https://mirror.csclub.uwaterloo.ca/gentoo-distfiles/     http://mirror.csclub.uwaterloo.ca/gentoo-distfiles/     http://us.mirrors.cicku.me/gentoo/     https://mirror.clarkson.edu/gentoo/     http://mirror.clarkson.edu/gentoo/     https://mirrors.kernel.org/gentoo/     http://mirrors.kernel.org/gentoo/     https://mirrors.mit.edu/gentoo-distfiles/     http://mirrors.mit.edu/gentoo-distfiles/     https://mirror.planetunix.net/pub/gentoo/     http://mirror.planetunix.net/pub/gentoo/     https://mirror.servaxnet.com/gentoo/     http://mirror.servaxnet.com/gentoo/"
GPG_VERIFY_GROUP_DROP="nogroup"
GPG_VERIFY_USER_DROP="nobody"
GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax navcom oncore skytraq superstar2 tsip tripmate tnt"
GRUB_PLATFORMS="efi-64"
GSETTINGS_BACKEND="dconf"
GUILE_SINGLE_TARGET="3-0"
GUILE_TARGETS="3-0"
HOME="/root"
INFOPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/15/info:/usr/share/binutils-data/x86_64-pc-linux-gnu/2.45.1/info:/usr/share/autoconf-2.72/info:/usr/share/automake-1.18.1/info:/usr/share/info"
INPUT_DEVICES="libinput"
IUSE_IMPLICIT="abi_x86_64 prefix prefix-guest prefix-stack"
KERNEL="linux"
L10N="en en-US"
LANG="en_US.UTF-8"
LCD_DEVICES="bayrad cfontz glk hd44780 lb216 lcdm001 mtxorb text"
LC_MESSAGES="C.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs"
LDFLAGS_amd64="-m elf_x86_64"
LDFLAGS_x32="-m elf32_x86_64"
LDFLAGS_x86="-m elf_i386"
LESS="-R -M --shift 5"
LESSOPEN="|lesspipe %s"
LEX="flex"
LIBDIR_amd64="lib64"
LIBDIR_x32="libx32"
LIBDIR_x86="lib"
LINGUAS="en en_US"
LLVM_TARGETS="X86"
LOGNAME="root"
LUA_SINGLE_TARGET="lua5-1"
LUA_TARGETS="lua5-1"
MAIL="/var/mail/root"
MAKEOPTS="-j12"
MANPAGER="manpager"
MANPATH="/usr/share/gcc-data/x86_64-pc-linux-gnu/15/man:/usr/share/binutils-data/x86_64-pc-linux-gnu/2.45.1/man:/usr/local/share/man:/usr/share/man:/usr/lib/rust/man-bin-1.91.0:/usr/lib/llvm/21/share/man"
MULTILIB_ABIS="amd64 x86"
MULTILIB_STRICT_DENY="64-bit.*shared object"
MULTILIB_STRICT_DIRS="/lib32 /lib /usr/lib32 /usr/lib /usr/kde/*/lib32 /usr/kde/*/lib /usr/qt/*/lib32 /usr/qt/*/lib /usr/X11R6/lib32 /usr/X11R6/lib"
MULTILIB_STRICT_EXEMPT="(perl5|gcc|binutils|eclipse-3|debug|portage|udev|systemd|clang|python-exec|llvm)"
OFFICE_IMPLEMENTATION="libreoffice"
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/bin:/usr/lib/llvm/21/bin"
PHP_TARGETS="php8-3"
PKGDIR="/var/cache/binpkgs"
PORTAGE_ARCHLIST="alpha amd64 arm arm64 arm64-macos hppa loong m68k mips ppc ppc64 riscv s390 sparc x64-macos x64-solaris x86"
PORTAGE_BIN_PATH="/usr/lib/portage/python3.13"
PORTAGE_COLOR="auto"
PORTAGE_COMPRESS="bzip2"
PORTAGE_COMPRESS_EXCLUDE_SUFFIXES="css gif htm[l]? jp[e]?g js pdf png"
PORTAGE_CONFIGROOT="/"
PORTAGE_DEBUG="0"
PORTAGE_DEPCACHEDIR="/var/cache/edb/dep"
PORTAGE_ELOG_CLASSES="log warn error"
PORTAGE_ELOG_MAILFROM="portage@localhost"
PORTAGE_ELOG_MAILSUBJECT="[portage] ebuild log for ${PACKAGE} on ${HOST}"
PORTAGE_ELOG_MAILURI="root"
PORTAGE_ELOG_SYSTEM="save_summary:log,warn,error,qa echo"
PORTAGE_FETCH_CHECKSUM_TRY_MIRRORS="5"
PORTAGE_FETCH_RESUME_MIN_SIZE="350K"
PORTAGE_GID="250"
PORTAGE_GPG_SIGNING_COMMAND="gpg --sign --digest-algo SHA256 --clearsign --yes --default-key "${PORTAGE_GPG_KEY}" --homedir "${PORTAGE_GPG_DIR}" "${FILE}""
PORTAGE_GRPNAME="portage"
PORTAGE_INST_GID="0"
PORTAGE_INST_UID="0"
PORTAGE_INTERNAL_CALLER="1"
PORTAGE_LOGDIR_CLEAN="find "${PORTAGE_LOGDIR}" -type f ! -name "summary.log*" -mtime +7 -delete"
PORTAGE_NICENESS="15"
PORTAGE_OVERRIDE_EPREFIX=""
PORTAGE_PYM_PATH="/usr/lib/python3.13/site-packages"
PORTAGE_PYTHONPATH="/usr/lib/python3.13/site-packages"
PORTAGE_QUIET="0"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git"
PORTAGE_RSYNC_RETRIES="-1"
PORTAGE_SYNC_STALE="30"
PORTAGE_TMPDIR="/var/tmp"
PORTAGE_TRUST_HELPER="/usr/bin/getuto"
PORTAGE_USERNAME="portage"
PORTAGE_VERBOSE="1"
PORTAGE_WORKDIR_MODE="0700"
PORTAGE_XATTR_EXCLUDE="bcachefs.* bcachefs_effective.* 	btrfs.* security.evm security.ima 	security.selinux system.nfs4_acl user.apache_handler 	user.Beagle.* user.dublincore.* user.mime_encoding user.xdg.*"
POSTGRES_TARGETS="postgres17"
PROFILE_ONLY_VARIABLES="ARCH ELIBC IUSE_IMPLICIT KERNEL USE_EXPAND_IMPLICIT USE_EXPAND_UNPREFIXED USE_EXPAND_VALUES_ARCH USE_EXPAND_VALUES_ELIBC USE_EXPAND_VALUES_KERNEL"
PYTHONDONTWRITEBYTECODE="1"
PYTHON_SINGLE_TARGET="python3_13"
PYTHON_TARGETS="python3_13"
QT_QPA_PLATFORMTHEME="qt5ct"
RESUMECOMMAND="wget -c -t 3 -T 60 --passive-ftp -O "${DISTDIR}/${FILE}" "${URI}""
RESUMECOMMAND_RSYNC="rsync -LtvP "${URI}" "${DISTDIR}/${FILE}""
RESUMECOMMAND_SSH="bash -c "x=\${2#ssh://} ; host=\${x%%/*} ; port=\${host##*:} ; host=\${host%:*} ; [[ \${host} = \${port} ]] && port= ; exec rsync --rsh=\"ssh \${port:+-p\${port}} \${3}\" -avP \"\${host}:/\${x#*/}\" \"\$1\"" rsync "${DISTDIR}/${FILE}" "${URI}" "${PORTAGE_SSH_OPTS}""
ROOT="/"
ROOTPATH="/usr/local/sbin:/usr/local/bin:/usr/bin:/opt/bin:/usr/lib/llvm/21/bin"
RPMDIR="/var/cache/rpm"
RUBY_TARGETS="ruby32 ruby33"
SHELL="/bin/bash"
SUDO_COMMAND="/usr/sbin/emerge --info sys-kernel/linux-firmware"
SUDO_GID="1000"
SUDO_HOME="/home/foo"
SUDO_TTY="/dev/pts/0"
SUDO_UID="1000"
SUDO_USER="foo"
SYMLINK_LIB="no"
SYSROOT="/"
TERM="xterm-kitty"
TWISTED_DISABLE_WRITING_OF_PLUGIN_CACHE="1"
UNINSTALL_IGNORE="/boot/dtbs/* /lib/modules/* /var/run /var/lock /bin /lib /lib32 /lib64 /libx32 /sbin /usr/sbin /usr/lib/modules/*"
USE="X a52 aac acl acpi alsa amd64 avif branding bzip2 cairo cdr cet crypt dbus dist-kernel dri dts dvdr elogind encode exif flac gdbm gif gpm gtk gui iconv icu initramfs ipv6 jpeg jpegxl lcms libnotify libtirpc mad mng mp3 mp4 mpeg multilib ncurses nvidia ogg opengl openmp pam pango pcre pdf pipewire png policykit ppds pulseaudio qml qt6 readline screencast sdl seccomp sound spell ssl startup-notification svg test-rust threads tiff truetype udev udisks unicode upower usb vorbis vulkan webp wxwidgets x264 xattr xcb xft xml xorg xv xvid zlib" ABI_X86="64" ADA_TARGET="gcc_15" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_anon authn_dbm authn_file authz_dbm authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir env expires ext_filter file_cache filter headers include info log_config logio mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx avx2 f16c fma3 mmx mmxext pclmul popcnt rdrand sha sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax navcom oncore skytraq superstar2 tsip tripmate tnt" GRUB_PLATFORMS="efi-64" GUILE_SINGLE_TARGET="3-0" GUILE_TARGETS="3-0" INPUT_DEVICES="libinput" KERNEL="linux" L10N="en en-US" LCD_DEVICES="bayrad cfontz glk hd44780 lb216 lcdm001 mtxorb text" LLVM_TARGETS="X86" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php8-3" POSTGRES_TARGETS="postgres17" PYTHON_SINGLE_TARGET="python3_13" PYTHON_TARGETS="python3_13" RUBY_TARGETS="ruby32 ruby33" VIDEO_CARDS="nvidia" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipp2p iface geoip fuzzy condition tarpit sysrq proto logmark ipmark dhcpmac delude chaos account"
USER="root"
USERLAND="GNU"
USE_EXPAND="ABI_MIPS ABI_S390 ABI_X86 ADA_TARGET ALSA_CARDS AMDGPU_TARGETS APACHE2_MODULES APACHE2_MPMS CALLIGRA_FEATURES CAMERAS COLLECTD_PLUGINS CPU_FLAGS_ARM CPU_FLAGS_PPC CPU_FLAGS_X86 CURL_QUIC CURL_SSL ELIBC GPSD_PROTOCOLS GRUB_PLATFORMS GUILE_SINGLE_TARGET GUILE_TARGETS INPUT_DEVICES KERNEL L10N LCD_DEVICES LIBREOFFICE_EXTENSIONS LLVM_SLOT LLVM_TARGETS LUA_SINGLE_TARGET LUA_TARGETS NGINX_MODULES_HTTP NGINX_MODULES_MAIL NGINX_MODULES_STREAM OFFICE_IMPLEMENTATION OPENMPI_FABRICS OPENMPI_OFED_FEATURES OPENMPI_RM PERL_FEATURES PHP_TARGETS POSTGRES_TARGETS PYTHON_SINGLE_TARGET PYTHON_TARGETS QEMU_SOFTMMU_TARGETS QEMU_USER_TARGETS RUBY_TARGETS RUST_SYSROOTS SANE_BACKENDS SELINUX_POLICY_TYPES UWSGI_PLUGINS VIDEO_CARDS VOICEMAIL_STORAGE XTABLES_ADDONS"
USE_EXPAND_HIDDEN="ABI_MIPS ABI_S390 CPU_FLAGS_ARM CPU_FLAGS_PPC ELIBC KERNEL"
USE_EXPAND_IMPLICIT="ARCH ELIBC KERNEL"
USE_EXPAND_UNPREFIXED="ARCH"
USE_EXPAND_VALUES_ARCH="alpha amd64 arm arm64 arm64-macos hppa loong m68k mips ppc ppc64 riscv s390 sparc x64-macos x64-solaris x86"
USE_EXPAND_VALUES_ELIBC="bionic Darwin glibc mingw musl SunOS"
USE_EXPAND_VALUES_KERNEL="Darwin linux SunOS"
USE_ORDER="env:pkg:conf:defaults:pkginternal:features:repo:env.d"
VIDEO_CARDS="nvidia"
XAUTHORITY="/home/foo/.Xauthority"
XDG_CONFIG_DIRS="/etc/xdg"
XDG_CURRENT_DESKTOP="i3"
XDG_DATA_DIRS="/usr/local/share:/usr/share"
XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipp2p iface geoip fuzzy condition tarpit sysrq proto logmark ipmark dhcpmac delude chaos account"
ac_cv_c_undeclared_builtin_options="none needed"
enable_year2038="no"
gl_cv_compiler_check_decl_option="-Werror=implicit-function-declaration"
gl_cv_func_getcwd_path_max="yes"

=================================================================
                        Package Settings
=================================================================

sys-kernel/linux-firmware-20260110::gentoo was built with the following:
USE="dist-kernel initramfs redistributable savedconfig -bindist -compress-xz -compress-zstd -deduplicate (-unknown-license)" ABI_X86="(64)"

[Nowa]

P.S. So I added in the USE=initramfs, and redid the kernel over. Let me make sure I have this correct, so now there is no need for amd-uc.img in /boot, it' s now bundled in the initramfs-6.12.63-gentoo-dist.img?

Correct, by enabling initramfs you have specified that the microcode should be updated via an initramfs. By enabling dist-kernel as well you have delegated the installation of the microcode to the kernel installation stage. Since dracut is selected as the initramfs generator, it will be called with the proper options to enable inclusion of the microcode and therefore no seperate microcode initramfs is created or needed.

[GenIT]

Hi Nowa,

So seeing only this in the log is fine?

Code: Select all

[    1.092252] microcode: Current revision: 0x0a201030 

Just to be certain I understood before, if using now USE=initramfs, along with USE=dist-kernel, I don't need /etc/dracut.conf.d/microcode.conf?

Code: Select all

early_microcode="yes"

This microcode.conf early_microcode="yes" is only if I compile my own?

THANKS

[pietinger]

So seeing only this in the log is fine?

Code: Select all

[    1.092252] microcode: Current revision: 0x0a201030 

IF your BIOS has the same or a newer microcode for your AMD CPU THEN you will see only this message.

Maybe you want do a (after booting):

Code: Select all

# dmesg | grep stepping

and notice family, model and stepping. Then look into:

Code: Select all

# less /lib/firmware/amd-ucode/README

and search for your CPU. If you have a Family=0x19 Model=0x21 Stepping=0x00 then your BIOS has a newer microcode than we have:

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Patch=0x0a20102e

[Nowa]

Just to be certain I understood before, if using now USE=initramfs, along with USE=dist-kernel, I don't need /etc/dracut.conf.d/microcode.conf?

Code: Select all

early_microcode="yes"

Correct, USE=initramfs will set this setting for you.

To confirm that dracut is actually including the microcode you can use lsinitrd on the created initramfs image, or share the output of 'emerge --config gentoo-kernel-bin'.

[GenIT]

If I compile my own kernel and I still have /etc/portage/make.conf USE= initramfs when I run dract is it still going to build the amd microcode into it?

I see in the dracut output it does say *** Constructing AuthenticAMD.bin *** so I'm assuiming that means it added it in?

I guess I don't understand manually needing /boot/amd-uc.img, unless it's only if you are not going to use an initramfs, and if you use an initramfs with make.conf USE= initramfs, even manually compiling the kernel, then no need for /boot/amd-uc.img?

This is the ouput of dracut on 6.12.74 I compiled;

Code: Select all

dracut
dracut[I]: Executing: /usr/bin/dracut 
dracut[I]: *** Including module: bash ***
dracut[I]: *** Including module: modsign ***
dracut[I]: *** Including module: i18n ***
dracut[I]: *** Including module: crypt ***
dracut[I]: *** Including module: dm ***
dracut[I]: *** Including module: fs-lib ***
dracut[I]: *** Including module: kernel-modules ***
dracut[I]: *** Including module: kernel-modules-extra ***
dracut[I]: *** Including module: nvdimm ***
dracut[I]: *** Including module: qemu ***
dracut[I]: *** Including module: qemu-net ***
dracut[I]: *** Including module: hwdb ***
dracut[I]: *** Including module: lunmask ***
dracut[I]: *** Including module: resume ***
dracut[I]: *** Including module: rootfs-block ***
dracut[I]: *** Including module: terminfo ***
dracut[I]: *** Including module: udev-rules ***
dracut[I]: *** Including module: virtiofs ***
dracut[I]: *** Including module: initqueue ***
dracut[I]: *** Including module: usrmount ***
dracut[I]: *** Including module: base ***
dracut[I]: *** Including module: shell-interpreter ***
dracut[I]: *** Including module: shutdown ***
dracut[I]: *** Including modules done ***
dracut[I]: *** Installing kernel module dependencies ***
dracut[I]: *** Installing kernel module dependencies done ***
dracut[I]: *** Resolving executable dependencies ***
dracut[I]: *** Resolving executable dependencies done ***
dracut[I]: *** Generating early-microcode cpio image ***
dracut[I]: *** Constructing AuthenticAMD.bin ***
dracut[I]: *** Store current command line parameters ***
dracut[I]: *** Stripping files ***
dracut[I]: *** Stripping files done ***
dracut[I]: *** Creating image file '/boot/initramfs-6.12.74.img' ***
dracut[I]: *** Hardlinking files ***
dracut[I]: *** Hardlinking files done ***
dracut[I]: Using auto-determined compression method 'zstd'
dracut[I]: *** Creating initramfs image file '/boot/initramfs-6.12.74.img' done ***

THANKS

[Nowa]

If I compile my own kernel and I still have /etc/portage/make.conf USE= initramfs when I run dract is it still going to build the amd microcode into it?

Yes because the initramfs flag enables the early_microcode=yes option for Dracut. This means that all calls to dracut will enable microcode. Note that USE=dist-kernel does cause a slight change in behaviour of the ebuild, when it is disabled the linux-firmware ebuild will create the amd-ucode.img. But when that flag is enabled it calls the distribution reinstall function, and sys-kernel/installkernel will then decide whether to create amd-ucode.img or not depending on whether dracut is selected as the initramfs generator.

I see in the dracut output it does say *** Constructing AuthenticAMD.bin *** so I'm assuiming that means it added it in?

Yes, that means it should be working.

I guess I don't understand manually needing /boot/amd-uc.img, unless it's only if you are not going to use an initramfs, and if you use an initramfs with make.conf USE= initramfs, even manually compiling the kernel, then no need for /boot/amd-uc.img?

A manual built kernel will still install through the sys-kernel/installkernel system (if it is available). The kernels 'make install' calls '/sbin/installkernel' just like the distribution kernel packages do.[/quote]

[GenIT]

Hi Nowa,

By the way, I was able to get the latest LTS 6.12.x - ohhh gentoo patches.

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emerge -av =sys-kernel/gentoo-sources-6.12.74

Thanks a lot for all your time, it's greatly appreciated! Take care!