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Grub
The config file can be found at /boot/grub/grub.conf
Documentation can be found via info grub
Runlevel
The default runlevel can be found in /etc/inittab:
id:5:initdefault:
The runlevels used are:
| 0 | halt (Do NOT set initdefault to this) |
| 1 | Single user mode |
| 2 | Multiuser, without NFS (The same as 3, if you do not have networking) |
| 3 | Full multiuser mode |
| 4 | unused |
| 5 | X11 |
| 6 | reboot (Do NOT set initdefault to this) |
- Check the runlevel via
who -rorrunlevel - Runlevels can be overridden by passing the number to kernels (via grub) at the end of the calling line
- Single user mode can be booted by using the parameter
singleat the end of the calling line
