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1 change: 1 addition & 0 deletions changelog/bugfixes/2025-12-29-gce-udev.md
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@@ -0,0 +1 @@
- Updated the GCE udev disk rules to include NVMe disks.
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@@ -0,0 +1 @@
DIST google-guest-configs-20260116.00.tar.gz 50190 BLAKE2B a9d546c87245114bd650c1b5116a9619b927e9afb0702adb0d3b41efeab680da65055f37490fe88d4923ceb7a5f596a3f59848f74cb9f8ce074d3f2568f40757 SHA512 995b350700feba28cdd6250c2ca0788539f1e58f3bae9d23081671fff82c7ff139ec9a0f56411e9ead6bfca62ced2c4bb729f516352982441c6a769162d9f4f2
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@@ -0,0 +1,50 @@
diff --git a/src/etc/sysctl.d/60-gce-network-security.conf b/src/etc/sysctl.d/60-gce-network-security.conf
index b40085b..d89d87d 100644
--- a/src/etc/sysctl.d/60-gce-network-security.conf
+++ b/src/etc/sysctl.d/60-gce-network-security.conf
@@ -14,45 +14,6 @@
#
# Google-recommended kernel parameters

-# Turn on SYN-flood protections. Starting with 2.6.26, there is no loss
-# of TCP functionality/features under normal conditions. When flood
-# protections kick in under high unanswered-SYN load, the system
-# should remain more stable, with a trade off of some loss of TCP
-# functionality/features (e.g. TCP Window scaling).
-net.ipv4.tcp_syncookies=1
-
-# Ignore source-routed packets
-net.ipv4.conf.all.accept_source_route=0
-net.ipv4.conf.default.accept_source_route=0
-
-# Ignore ICMP redirects from non-GW hosts
-net.ipv4.conf.all.accept_redirects=0
-net.ipv4.conf.default.accept_redirects=0
-net.ipv4.conf.all.secure_redirects=1
-net.ipv4.conf.default.secure_redirects=1
-
-# Don't pass traffic between networks or act as a router
-net.ipv4.ip_forward=0
-net.ipv4.conf.all.send_redirects=0
-net.ipv4.conf.default.send_redirects=0
-
-# Turn on Source Address Verification in all interfaces to
-# prevent some spoofing attacks.
-net.ipv4.conf.all.rp_filter=1
-net.ipv4.conf.default.rp_filter=1
-
-# Ignore ICMP broadcasts to avoid participating in Smurf attacks
-net.ipv4.icmp_echo_ignore_broadcasts=1
-
-# Ignore bad ICMP errors
-net.ipv4.icmp_ignore_bogus_error_responses=1
-
# Log spoofed, source-routed, and redirect packets
net.ipv4.conf.all.log_martians=1
net.ipv4.conf.default.log_martians=1
-
-# Addresses of mmap base, heap, stack and VDSO page are randomized
-kernel.randomize_va_space=2
-
-# Reboot the machine soon after a kernel panic.
-kernel.panic=10
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@@ -0,0 +1,25 @@
From a848f8f181e2a7080a7ee06fb87ffbfe05e66a24 Mon Sep 17 00:00:00 2001
From: James Le Cuirot <jlecuirot@microsoft.com>
Date: Tue, 20 Jan 2026 15:55:29 +0000
Subject: [PATCH] dracut: Install dd and ln as these are used by google_nvme_id

I found that the disk name symlink was missing on Flatcar due to the
lack of dd. I thought about using pure Bash, but it can't handle the
null bytes. I also thought about using tail, but this is just as likely
to be missing.

I've also added ln for good measure.
--- a/src/lib/dracut/modules.d/30gcp-udev-rules/module-setup.sh
+++ b/src/lib/dracut/modules.d/30gcp-udev-rules/module-setup.sh
@@ -4,7 +4,7 @@

# called by dracut
install() {
- inst_multiple nvme grep sed
+ inst_multiple nvme dd ln grep sed
inst_simple /usr/lib/udev/google_nvme_id
inst_simple /usr/lib/udev/rules.d/65-gce-disk-naming.rules
}
--
2.51.2

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@@ -0,0 +1,66 @@
# Copyright 2026 The Flatcar Container Linux Maintainers
# Distributed under the terms of the Apache License 2.0

# IMPORTANT! When bumping, ensure that the Dracut modules do not install files
# that would make runtime changes to systems to other than GCE VMs because the
# initrd is shared between image types. The udev disk rules are currently safe.

EAPI=8

inherit udev

DESCRIPTION="Configuration and scripts to support the Google Compute Engine guest environment"
HOMEPAGE="http://github.com/GoogleCloudPlatform/guest-configs"
SRC_URI="https://github.com/GoogleCloudPlatform/guest-configs/archive/${PV}.tar.gz -> ${P}.tar.gz"
S="${WORKDIR}/guest-configs-${PV}"

LICENSE="Apache-2.0 BSD ZLIB"
SLOT="0"
KEYWORDS="amd64"

RDEPEND="
net-misc/curl
sys-apps/ethtool
sys-apps/iproute2
sys-apps/nvme-cli
!<app-emulation/google-compute-engine-20190124-r3
"

PATCHES=(
"${FILESDIR}"/${PN}-20211116.00-sysctl.patch
"${FILESDIR}"/${PN}-dracut-deps.patch
)

src_install() {
exeinto "$(get_udevdir)"
doexe src/lib/udev/google_nvme_id

udev_dorules src/lib/udev/rules.d/65-gce-disk-naming.rules
udev_dorules src/lib/udev/rules.d/75-gce-network.rules

insinto /usr/lib/sysctl.d
doins src/etc/sysctl.d/60-gce-network-security.conf

dobin src/usr/bin/google_set_multiqueue
dobin src/usr/bin/google_optimize_local_ssd
dobin src/usr/bin/gce-nic-naming

insinto /usr/lib/dracut/modules.d
doins -r src/lib/dracut/modules.d/*

# Don't put any sysctl config into the shared initrd. It will still get
# applied after switching root anyway.
local sysctl=( "${ED}"/usr/lib/sysctl.d/* )
insinto /usr/lib/dracut/dracut.conf.d
newins - ${PN}.conf <<-EOF
remove_items+=" ${sysctl[@]#${ED}} "
EOF
}

pkg_postinst() {
udev_reload
}

pkg_postrm() {
udev_reload
}
Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<upstream>
<remote-id type="github">GoogleCloudPlatform/guest-configs</remote-id>
</upstream>
</pkgmetadata>
Original file line number Diff line number Diff line change
Expand Up @@ -28,3 +28,10 @@ RDEPEND="
sys-apps/iproute2
sys-apps/shadow
"

src_install() {
distutils-r1_src_install

# Newer versions are installed by app-admin/google-guest-configs.
rm -v "${ED}"/usr/bin/google_{optimize_local_ssd,set_multiqueue} || die
}

This file was deleted.

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@@ -0,0 +1,35 @@
# Copyright (c) 2013 CoreOS, Inc.. All rights reserved.
# Distributed under the terms of the GNU General Public License v2
# Copyright (c) 2020 Kinvolk GmbH. All rights reserved.
# Distributed under the terms of the GNU General Public License v2

EAPI=8

inherit systemd

DESCRIPTION="OEM suite for Google Compute Engine images"
HOMEPAGE="https://cloud.google.com/products/compute-engine/"
S="${WORKDIR}"

LICENSE="Apache-2.0"
SLOT="0"
KEYWORDS="amd64"

RDEPEND="
app-admin/google-guest-configs
app-emulation/google-compute-engine
"

OEM_NAME="Google Compute Engine"

src_install() {
systemd_dounit "${FILESDIR}"/units/{oem-gce,oem-gce-enable-oslogin,setup-oem}.service
systemd_install_dropin multi-user.target "${FILESDIR}"/units/10-oem-gce.conf
systemd_enable_service multi-user.target ntpd.service

dobin "${FILESDIR}"/bin/{enable-oslogin,init.sh}

# These files will be symlinked to /etc via 'setup-oem.service'
insinto /usr/share/gce
doins "${FILESDIR}"/files/{google-cloud-sdk.sh,hosts}
}
Original file line number Diff line number Diff line change
@@ -1 +1 @@
DIST bootengine-7d9895ce55617b18a78294975197975ac17b5bc3.tar.gz 36752 BLAKE2B 88c0478fd368203f3184f3e98ef8b277b725b6a7da6f39198c8366e71cb587705eb3859ccd92f701b4f7da4ed9571d645ddebc32293671477fed524fe31429e7 SHA512 6f8551e9b9fac5cedd8ee9fcb6d958092032b636f64c9d15f954a64c76ad9cbd8648bbb480bc92a6e98f7503d26f49e6c47989537cb1bdfb35d21eb2859e7923
DIST bootengine-8854e0fd9fb77bf10eb8484a989d1b76a635264c.tar.gz 36865 BLAKE2B 71d9173321eae6856fc33f01f761864f2827e445d1671d9cd8cb8563fd76c06c3361df898b902448efe0bc1661ba42fc9167d71b164ba92daddac0fa2203d130 SHA512 3fd9575e22d5808caa099425beb0911d429ff4cec6b9d86a1371cf6f437306c693cae7d6e39e4814f5d15207d9ec82c95aa037a1ad0c5bb05c675ba13137b81b
Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@ if [[ ${PV} == 9999 ]]; then
EGIT_REPO_URI="https://github.com/flatcar/bootengine.git"
inherit git-r3
else
EGIT_VERSION="7d9895ce55617b18a78294975197975ac17b5bc3" # flatcar-master
EGIT_VERSION="8854e0fd9fb77bf10eb8484a989d1b76a635264c" # chewi/sysctl-rerun
SRC_URI="https://github.com/flatcar/bootengine/archive/${EGIT_VERSION}.tar.gz -> ${PN}-${EGIT_VERSION}.tar.gz"
S="${WORKDIR}/${PN}-${EGIT_VERSION}"
KEYWORDS="amd64 arm arm64 x86"
Expand Down
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Expand Up @@ -56,7 +56,10 @@ DEPEND="
>=sys-kernel/coreos-firmware-20180103-r1:=
sys-process/procps
virtual/udev
amd64? ( sys-firmware/intel-microcode:= )
amd64? (
app-admin/google-guest-configs
sys-firmware/intel-microcode:=
)
"

src_prepare() {
Expand Down