Name all four user-mode processes, one of which the kernel will try to execute as the final step in the boot process.
In the final step in the boot process, the kernel will try to execute one of the following programs as the first user-mode process: /sbin/init, /etc/init, /bin/init and /bin/sh.
The parent of all processes init can be found running in one of eight runlevels. What type of levels are the runlevels 2, 3, 4, and 5?
These runlevels are multi-user runlevels.
What does it mean when the action field in the file
The process specified in the fourth field of the same line will be started just once when the specified runlevel is entered and init will wait for its termination.
What type of files do the directories
These directories contain symbolic links to scripts in
What is the purpose of the Linux Standard Base (LSB) standard?
It ensures that a program compiled in an LSB compatible environment will run on any distribution that supports the LSB standard (within a certain processor architecture).
What is chain-loading?
Chain-loading implies that GRUB will be used to boot the system, and in turn will load and run the proprietary systems bootloader, which then boots the operating system.
What is the purpose of the grub-install command?
The grub-install command is used to install stage 1 to either the MBR or within a partition.
Which command enables you to switch to a different runlevel?
This is done via the telinit command.
During boot a filesystem check fails. You read something like “fsck failed. Please repair manually” followed by “CONTROL-D will exit from this shell and continue system startup”. How do you proceed?
If you do not press CTRL+D but enter the root password, you will get a shell, in fact /sbin/sulogin is launched, and you should be able to run fsck and fix the problem if the root filesystem is mounted read-only.