APIC,SMP] Format: <int> The number of initial APIC ID for the corresponding CPU to be disabled at boot, mostly used for the kdump 2nd kernel to disable BSP to wake up multiple CPUs without causing system reset or hang due to sending INIT from AP to BSP. ...
The kernel boot parameters that were last used to boot a system are recorded in/proc/cmdline, for example: #cat /proc/cmdlinero root=/dev/mapper/VolGroup-lv_root rd_NO_LUKS KEYBOARDTYPE=pc KEYTABLE=us LANG=en_US.UTF-8 rd_NO_MD rd_LVM_LV=VolGroup/lv_swap SYSFONT=latarcyrheb-sun16...
Do not modify the syntax of boot loader parameters without extreme need or coordination with <Documentation/x86/boot.txt>. There are also arch-specific kernel-parameters not documented here. See for example <Documentation/x86/x86_64/boot-options.txt>. Note that ALL kernel parameters listed below ...
首先,kernel检查关键字是不是 'root=', 'nfsroot=', 'nfsaddrs=', 'ro', 'rw', 'debug'或'init',然后内核在bootsetups数组里搜索于该关键字相关联的已注册的处理函数,如果找到相关的已注册的处理函数,则调用这些函数并把关键字后面的值作为参数传递给这些函数。比如,你在启动时设置参数name=a,b,c,d,...
There are a great number of optional Linux boot parameters. The official kernel documentation lists many, see,The kernel’s command-line parameters. That is just one type of option parameter. There are many others. The common way in which they are used at boot time and as part of a perma...
新的内核安装后,使用 grubby 工具将下次启动的内核设置为目标版本,重启后即进入新的内核啦。 grubby --set-default /boot/vmlinuz-<kernel-version> 原文参考: https://mp.weixin.qq.com/s/Z3o7Sf4F9V3j_L_FOxX24g https://mp.weixin.qq.com/s/T3GEYHFh1qA9Y7g2P7jFIA(版权归原作者所有,侵删)发布...
1. 它带有的驱动可以找到在ESP之外的kernel和ramdisk。 2. 选择boot option界面和扩展功能 3. 传递启动参数(Boot Parameters)给Linux内核。 其实Linux本身很早就加入了UEFI的支持(Kernel 3.3),叫做EFI Stub。通过它,Linux内核可以被直接被编译成UEFI的app,可以直接被UEFI固件识别和启动,完全不需要借助第三方bootloader...
则parse_one前面遍历.__param段不会找到匹配的kernel_param。就走到后面调用handle_unknown。就是parse_args传来的unknown_bootoption,代码如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 /* * Unknown boot options get handed to init, unless they look like * unused parameters (modprobe will ...
U-boot会给Linux Kernel传递很多参数,如:串口,RAM,videofb、MAC地址等。而Linux kernel也会读取和处理这些参数。两者之间通过struct tag来传递参数。U-boot把要传递给kernel的东西保存在struct tag数据结构中,启动kernel时,把这个结构体的物理地址传给kernel;