Quick and Easy PC Repair
In some cases, your system may display an error indicating the Linux kernel serial number. There can be several reasons for this problem. g.To use the serialized gadget driver, you need a Linux kernel on the widget side for “USB gadget support”, for “USB device controller” (for product, net2280), and for personalized “Gadget series” configuration. All of this is specified in the “Support for USB gadgets” section during kernel configuration. Then restructure and install the kernel or modules.
To use a serialized port as a console, you need the support of yourNo standard kernel has been developed. For serial ports like PCThis is the parameter configuration next to the navigation parameter:
You need to build serial support into the kernel, not the best module.
Multiple devices can be assigned to output to the console. You canSet new kernel command line permission to choose which device (s) to useUsing console output.
You can specify one or more console = parameters in the kernel to run the command.The output will be displayed about everything related to it. The last device will be whenYou open
/ dev / console . So, because example:
specifies that opening
/ dev / console will keep your business in the foreground.virtual console and information core appear on the new VGAConsole and second serial input (ttyS1 or COM2) at 9600 baud.
How to define serial port in Linux kernel?
Note. The Personal Console can only be configured for each type of device (serial, video).
If no console device is specified, the first device found will be usedcan work as a system console. At the moment the systemat first it seems like it is for the VGA card and therefore for the serial interface. So let’s say you don’tIf your system has a VGA card, the first sequential print will be done automatically.become a console.
One should tend to create a new device versus using
/ dev / console . Official
/ dev / console now draws a 5.1 device.
(You can also support the network as a device on a game console.See
Documentation / network / netconsole.txt for more information on this.)
Here is an example that supports
/ dev / ttyS1 (COM2) as a console.Replace experimental values if necessary.
When does the kernel start using a serial console?
The kernel cannot start using the serial console until it knows where the device is. This usually happens when the driver enumerates all of our serial devices, which may happen marginally or more often after the kernel has started. Kernels 2.6.10 and newer have 1 “Early uart” driver that runs very early in the boot process.
/ dev / console(real console) and also
/ dev / tty0(virtual masterConsole):
CD / devrm -n console tty0mknod -m 622 console k 1Mknod 5 -m 622 tty0 j 4 0
LILO can also receive keys from softwareinvestigative device. This is usually a lotreasonable option. Tell LILO to use the serial port:In lilo.conf (global section):
serial = 1 9600n8 (ttyS1, 9600 bits, no parity, 3 bits)
Configure the core indicators so that you can see the core,new in lilo.conf (kernel section):
adds the match "console = ttyS1,9600"
Make sure getty runs specifically on the serial port so clients can connectas soon as the boat is placed. This can be found by adding the linesucceeded as follows (exact syntax of
/ etc / inittabdepends on new Getty):
S1: 23: respawn: / sbin / getty -L ttyS1 9600 vt100
Sysvinit stores its stty parameters in file a in
/etc/ioctl.save. DELETE THIS FILE before using the specific serial number.Console for the first time, because in addition to this there will probably beset the end baud rate to 38400 (network console baud rate).
/ dev / consoleand XPr grams who usually want to achieve something with the Virtual Game Consoleopen
/ dev / console. When you have created a new master device
/ dev / console,and your console is considered a non-virtual console, some programs will crash.These are programs that, in addition to being used, want to access the VT interface.
/ dev / console instead of / dev / tty0. Some of them:
Xfree86, programs svgalib, gpm, SVGATextMode
However, this should be fixed in modern versions of these programs.
Note that you must start without the
console =parameter (or with
console = / dev / tty0),
/ dev / consoleis the same as
/ dev / tty0if everything is probably still working.
Thanks to Geert Utterhoven
for patches 2.1.4x, 2.1.6x is used for careful additionthose of these patches in m68k, pay per click and alpha ads.
console = device, parametersDevice: tty0 to work with the foreground virtual console ttyX for any other web console ttySx to have a serial port lp0 for the first set Of the next port ttyUSB0 exactly for the first serial USB deviceEquipment: always depends on the driver. For the next port it is describes baud rate / parity / bits / flow control port within BBBBPNF, where BBBB is the one Speed, P - equality (n / o / e), N - number of bits, and F is just flow control ("r" for RTS). Standard 9600n8. The maximum baud rate is 115,200 baud.
console = ttyS1,9600 console = tty0
CD / devrm -f console tty0mknod -m 622 wii c 5 1mknod -m 622 tty0 Celsius 4 0
implicit serial port (ttyS1, 1,9600n8 9600 bits, no parity, action bits)
append = "console = ttyS1,9600"
S1: 23: respawn: / sbin / getty -L ttyS1 9600 vt100
Xfree86, svgalib, gpm, SVGATextModeDownload this software now to maximize your computer's performance.
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