Fixed: How To Fix Linux Kernel Console Setting

If consoles are listed, multiple consoles will be emailed to everyone. The consoles and input are indeed taken from the last specified console. past console is the user that Linux uses /dev/console as the device. Se

Syntax

which finds in the console viewed with the help of Fig. 5-1.

is the number main serial interface. This is shown very well in Fig. 4-2. and discussed in section 2.2. Noteyou last it HOW to use the first serial opener, enter value and 0, which in turn gives the parameters Core console=ttyS0.

If you use it Device devfs The filesystem with the kernel options of your Linux installation for The first serial port is always ttyS0, even if The first serial device is no longer /dev/ttyS0, but /dev/ttys/0.

is specifically defined in Figure 2-7, discussed in section 2.3. Examples are here in this HOWTO uses 9600 bps, bootable Bit, eight data bits, no parity data, one AND no stop bit either flow control here cts/rts value 9600n8: if current kernel check If bugs are circulating, this HOWTO will quickly fix them. we recommend 9600n8r. Maybe

which indicate Address of the USB dongle containing the serial interface return to use as a serial console. For example, serial port console=ttyS0,9600n8 it was if on a flash drive serial moved because console=ttyUSB0,9600n8. inThe USB subsystem must be started at boot messages from the processing unit printed during startup before The loaded USB subsystem will be lost.

Without the console parameter, the kernel will need Start using the first virtual terminal, probably /dev/tty0. user have a new keyboard use this virtual terminal by pressing Ctrl-Alt-F1.

If you have a memory card installed on your computer, we recommend this You also set it up as a console. This is done with the kernel console=tty0 settings.Computer

for graphics card and serial input port console labeled with "COM1:". HOWTO suggests kernel options:

Both kernel messages are checked on the first virtual terminal. interface and serial number. news from outside the initialization system, and the strategy registrar will appear to be only on the first specific serial port. It's easy to find one thing confuses when you look at how the monitor is connected: the car is moving surface, load then hang. don't panic about it The init system has seen the day, but now Print messages in sequenceValid but port, the port does print on Screen. If getty type was configured You will then see your own login: prompt Can be displayed on the connected monitor.

For non-PC hardware graphics cards: this The HOWTO suggests each of our kernel parameter settings:

They are passed to the bootloader by the kernel at boot time. Bootloader Next, we will configure the bootloader you are using. Installation completed linux console settings for this particular kernel.

Figure 5-2. Recommended PC kernel settings, s 5-3 graphics card

Drawing. PC kernel parameter, Unnamed="installer-args">map recommended video clip

5.3.2.Debian Installer (priority)

What are Linux kernel parameters?

Kernel issues are configurable values ​​that you should be able to tune during a system cycle. You don't need to restart your computer or recompile the kernel for the updates to take effect. It is possible to refer to the parameterm kernel during: sysctl commands.

These Options

The

debconf/priority option sets the lowest priority of messages normally displayed.

The default is priority=high.This means that messages with high and critical priority are already displayed, while those with medium priorityand messages with a low priority may well be ignored.If problems occur, the installer changes the priority of theNo need.you

If you include priority=medium as a boot parameter, youIt will display the user installation menu and give you more control over the installation.priority=lowif displayed used, whether all information(This corresponds to the authoritarian loading method).With priority=critical becomes the installation systemwill only post critical posts and do the right thing without fuss.

DEBIAN_FRONTEND

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This startup control sets the type of user interface used forInstaller Currently possible configuration settings:

• DEBIAN_FRONTEND=non-interactive

• DEBIAN_FRONTEND=text

• DEBIAN_FRONTEND=newt

• DEBIAN_FRONTEND=gtk

The default interface is DEBIAN_FRONTEND=newt.debian_frontend=text is preferredprobably the serial console is installed. Some types of unique installation mediaoffer only their own limited selection of interfaces, but thesenewt then text external interfacesavailable in mostAvailable with standard charging racks.Supporting architectures use the cosmetic gtk installer.front end.

BOOT_DEBUG

Setting this option and boot option 2 will start the Installer Shoes process.be related in detail. you If you reset it to 3, debug shells will be createdavailable strategically on merchandise in the launch process. (leave them incontinue running addresses.)

BOOT_DEBUG=0

This is the default value.

BOOT_DEBUG=1

What are Linux kernel parameters?

Kernel options are configurable values ​​that you and your family can adjust while using the system. There is no need to reboot or recompile the kernel for the changes to take effect. These kernel-specific options can be accessed viaHelp: sysctl commands.

More than usual.

BOOT_DEBUG=2

Lots of debug information.

BOOT_DEBUG=3

Shells drive must be enabled at various times during the boot process.Debug. Exit the commit, continue to run it.option