Linux kernel内核编译

Linux kernel内核编译

一、安装所需前置软件

sudo apt-get install fakeroot build-essential ncurses-dev xz-utils libssl-dev bc flex libelf-dev bison

二、设置CPU架构

export ARCH=x86_64
export CROSS_COMPILE=x86_64-linux-gnu-

三、设置系统选项

make x86_64_defconfig
make menuconfig

配置选项是为了支持ramdisk根文件系统
Initial RAM filesystem and RAM disk (initramfs/initrd) support

启用EFI Stub
“Processor type and features”，并勾选"EFI stub support"（按"Y"键）

四、编译

make -j 4

编译完成后在arch/x86/boot/下生成了bzImage文件
Linux kernel编译完成

五、SATA控制器驱动

内核make menuconfig提供了SATA控制器驱动以模块形式加载

Device Drivers --->
 	<M>Serial ATA and Parallel ATA drivers(libata)--->
 	 	<M>Intel ESB,ICH,PIIX3,PIIX4 PATA/SATA support
 	<M>AHCI SAT support
[*]Enable loadable modules support --->

六、Squashfs和Overlayfs

默认 Linux 内核配置下 squahfs 是通过加载内核驱动模块实现对其支持
→ File systems
<*> Overlay filesystem support

→ File systems → Miscellaneous filesystems
<*> SquashFS 4.0 - Squashed file system support

七、编译内核模块

make modules

模块安装到自定义位置

make modules_install INSTALL_MOD_PATH=./modules

模块安装后在modules文件夹下有kernel版本对应的文件夹,将其拷贝到rootfs根目录

cp -r modules/*  rootfs/

八 、编译virtio模块

Get Linux kernel with virtio drivers for the guest
Get Kernel >= 2.6.25 and activate (modules should also work, but take care of initramdisk)
CONFIG_VIRTIO_PCI=y (Virtualization -> PCI driver for virtio devices)
CONFIG_VIRTIO_BALLOON=y (Virtualization -> Virtio balloon driver)
CONFIG_VIRTIO_BLK=y (Device Drivers -> Block -> Virtio block driver)
CONFIG_VIRTIO_NET=y (Device Drivers -> Network device support -> Virtio network driver)
CONFIG_VIRTIO=y (automatically selected)
CONFIG_VIRTIO_RING=y (automatically selected)
you can safely disable SATA/SCSI and also all other nic drivers if you only use VIRTIO (disk/nic)

参考链接：

https://blog.csdn.net/zhaojia92/article/details/100717580
https://blog.51cto.com/hiyang/1767266
https://blog.csdn.net/itas109/article/details/107737843
https://blog.csdn.net/weixin_34472954/article/details/111901674
https://www.cnblogs.com/pied/articles/5775282.html
https://blog.csdn.net/qingkongyeyue/article/details/73043870?utm_source=blogxgwz6
https://www.cnblogs.com/mc-r/articles/12238345.html
https://www.cnblogs.com/klb561/p/9192630.html
https://blog.csdn.net/zengxi0302/article/details/38565349
https://blog.csdn.net/u012247418/article/details/106021793
http://blog.chinaunix.net/uid-31446765-id-5781962.html
http://www.linux-kvm.org/page/Virtio