Linux › Section E · How the Linux kernel boots › Topic E.2
Kernel initialization and parameters
Between being loaded and starting init, the kernel works through a fixed sequence of set-up steps, guided by a short line of text from the boot loader. That line, the kernel command line, decides where the root filesystem is, how chatty the boot is, and much more.
In this topic
- What the kernel does first
- Built-in drivers and modules
- The kernel command line
- root= and ro
- Other common parameters
- Parameters the kernel passes on
- Worked example: reading /proc/cmdline
- Worked example: changing a parameter
- Boot-time versus run-time settings
- When parameters go wrong
- Common mistakes to avoid
- Key takeaways
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