Typically, Linux starts init as the first process, so option (A) is correct. bash is a Linux text-mode shell program. Although it’s important for user interaction, it’s far from the first process Linux starts.
What is the first process that the Linux kernel runs when it boots on most Linux systems?
Once the kernel has started, it starts the init process. Historically this was the “SysV init”, which was just called “init”. More recent Linux distributions are likely to use one of the more modern alternatives such as systemd. Basically, these are grouped as operating system service-management.
Where do most log files reside on a Linux computer?
Regardless of which Linux distribution you are using, the log files reside in /var/log/ directory.
What is init in Linux boot process?
Init is the parent of all processes, executed by the kernel during the booting of a system. Its principle role is to create processes from a script stored in the file /etc/inittab. It usually has entries which cause init to spawn gettys on each line that users can log in.
What are different run levels in Linux?
A runlevel is an operating state on a Unix and Unix-based operating system that is preset on the Linux-based system.
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runlevel.
| Runlevel 0 | shuts down the system |
|---|---|
| Runlevel 1 | single-user mode |
| Runlevel 2 | multi-user mode without networking |
| Runlevel 3 | multi-user mode with networking |
| Runlevel 4 | user-definable |
What is process ID in Linux?
The process identifier (process ID or PID) is a number used by Linux or Unix operating system kernels. It is used to uniquely identify an active process.
How many types of process are there?
Five types of manufacturing processes.
How a process is created in Linux?
A new process can be created by the fork() system call. The new process consists of a copy of the address space of the original process. fork() creates new process from existing process. Existing process is called the parent process and the process is created newly is called child process.
How do I view a log file in Linux?
Linux logs can be viewed with the command cd/var/log, then by typing the command ls to see the logs stored under this directory. One of the most important logs to view is the syslog, which logs everything but auth-related messages.
Where does the kernel store its ring buffer logs?
Where does the kernel store its ring buffer logs? The kernel ring buffer is held in memory, as option E specifies.