10.3. Linux-6.10.5

注意

一个较好的初始内核配置可以通过运行 make defconfig 获得。它会考虑您的当前系统体系结构，将基本内核配置设定到较好的状态。

一定要按照以下列表启用/禁用/设定其中列出的内核特性，否则系统可能不能正常工作，甚至根本无法引导：

General setup --->
  [ ] Compile the kernel with warnings as errors                        [WERROR]
  CPU/Task time and stats accounting --->
    [*] Pressure stall information tracking                                [PSI]
    [ ]   Require boot parameter to enable pressure stall information tracking
                                                     ...  [PSI_DEFAULT_DISABLED]
  < > Enable kernel headers through /sys/kernel/kheaders.tar.xz      [IKHEADERS]
  [*] Control Group support --->                                       [CGROUPS]
    [*]   Memory controller                                              [MEMCG]
    [ /*] CPU controller --->                                     [CGROUP_SCHED]
      # This may cause some systemd features malfunction:
      [ ] Group scheduling for SCHED_RR/FIFO                    [RT_GROUP_SCHED]
  [ ] Configure standard kernel features (expert users) --->            [EXPERT]

Kernel type and options --->
  [*] Relocatable kernel                                           [RELOCATABLE]
  [*]   Randomize the address of the kernel (KASLR)             [RANDOMIZE_BASE]

General architecture-dependent options --->
  [*] Stack Protector buffer overflow detection                 [STACKPROTECTOR]
  [*]   Strong Stack Protector                           [STACKPROTECTOR_STRONG]

[*] Networking support --->                                                [NET]
  Networking options --->
    [*] TCP/IP networking                                                 [INET]
    <*>   The IPv6 protocol --->                                          [IPV6]

Device Drivers --->
  Generic Driver Options --->
    [ ] Support for uevent helper                                [UEVENT_HELPER]
    [*] Maintain a devtmpfs filesystem to mount at /dev               [DEVTMPFS]
    [*]   Automount devtmpfs at /dev, after the kernel mounted the rootfs
                                                           ...  [DEVTMPFS_MOUNT]
    Firmware loader --->
      < /*> Firmware loading facility                                [FW_LOADER]
      [ ]     Enable the firmware sysfs fallback mechanism
                                                    ...  [FW_LOADER_USER_HELPER]
  Firmware Drivers --->
    [*] Export DMI identification via sysfs to userspace                 [DMIID]
  Graphics support --->
    < /*/M> Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) --->
                                                                      ...  [DRM]
      # If [DRM] is selected as * or M, this must be selected:
      [ /*] Enable legacy fbdev support for your modesetting driver
                                                      ...  [DRM_FBDEV_EMULATION]
    Console display driver support --->
      # If [DRM] is selected as * or M, this must be selected:
      [ /*] Framebuffer Console support                    [FRAMEBUFFER_CONSOLE]

File systems --->
  [*] Inotify support for userspace                               [INOTIFY_USER]
  Pseudo filesystems --->
    [*] Tmpfs virtual memory file system support (former shm fs)         [TMPFS]
    [*]   Tmpfs POSIX Access Control Lists                     [TMPFS_POSIX_ACL]

如果 LFS 系统分区在 NVME SSD 上 (即，分区的设备节点是 /dev/nvme*，而非 /dev/sd*)，启用 NVME 支持，否则 LFS 系统无法引导：

Device Drivers --->
  NVME Support --->
    <*> NVM Express block device                                  [BLK_DEV_NVME]

注意

尽管 “The IPv6 Protocol” (IPv6 协议支持) 并不是严格要求的，但是 systemd 开发者强烈推荐启用它。

注意

如果您的硬件支持 UEFI，且您希望通过 UEFI 引导 LFS 系统，则您需要按照 BLFS 页面的说明，调整一些内核配置选项，即使您准备使用宿主发行版提供的 UEFI 加载器引导 LFS 系统，也需要进行调整。

注意

之后在 BLFS 中安装软件包时往往需要修改内核配置。因此，和其他软件包不同，我们在安装好内核后可以不移除源代码树。

如果要保留内核源代码树，对内核源代码目录运行 chown -R 0:0 命令，以保证 linux-6.10.5 目录中所有文件都属于 root。