更新内核到 v6.2.1

bash -c "$(curl -sSL https://bd-rce.coding.net/api/user/bd-rce/project/shell/shared-depot/lts-tools-v10/git/blob/master/kernel/v6.2.1-t2023022801/install.sh | jq -r '.data.file.data')"

#!/usr/bin/env bash
__main() {
    #导入公钥
    rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
    #添加YUM源
    yum install -y https://www.elrepo.org/elrepo-release-7.el7.elrepo.noarch.rpm
    # 查看最新内核版本
    # kernel-lt 长期支持版
    # kernel-ml 主线最新版本
    # yum --disablerepo="*" --enablerepo=elrepo-kernel list kernel*
    # 本文主要安装主线最新版
    _branch="ml"
    _version="" # 不填版本则是最新版
    yum install -y --disablerepo="*" --enablerepo="elrepo-kernel" \
        "kernel-${_branch}${_version}" \
        "kernel-${_branch}-devel$_version" \
        "kernel-${_branch}-headers$_version" \
        "kernel-${_branch}-tools$_version" \
        "kernel-${_branch}-tools-libs$_version" \
        "kernel-${_branch}-tools-libs-devel$_version" \
        --skip-broken
    cat >/etc/default/grub <<'EOF'
GRUB_DEFAULT="saved"
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DISABLE_SUBMENU="true"
GRUB_DISABLE_RECOVERY="true"
GRUB_TIMEOUT="3"
GRUB_TERMINAL="console serial"
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="intel_iommu=ats intel_iommu=unsafe_interrupts intel_iommu=on iommu=pt  crashkernel=auto rhgb quiet"
GRUB_CMDLINE_LINUX_DEFAULT="console=tty1 console=ttyS0,115200"
GRUB_SERIAL_COMMAND="serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1"
EOF
    grub2-set-default 0 #设置新内核为默认启动项,默认情况下新内核序号为0
    grub2-mkconfig -o /boot/grub2/grub.cfg 2>/dev/null
    grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg 2>/dev/null
    # 开机免密码
    sed -i 's,^ExecStart=.*$,ExecStart=-/sbin/agetty --autologin root --noclear %I,' /usr/lib/systemd/system/serial-getty@.service
    sed -i 's,^ExecStart=.*$,ExecStart=-/sbin/agetty --autologin root --noclear %I,' /usr/lib/systemd/system/getty@.service
    systemctl enable serial-getty@ttyS0.service
}
__main

内核参数设置

bash -c "$(curl -sSL https://bd-rce.coding.net/api/user/bd-rce/project/shell/shared-depot/lts-tools-v10/git/blob/master/kernel/v6.2.1-t2023022801/sysctl_conf.sh | jq -r '.data.file.data')"

Linux 内核 (kernel)

CentOS 7 内核更新

更新内核到 v6.2.1

内核参数设置

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