Pxelinux initrd options trading
It is intended to simplify first-time installation of Linux, and for creation of rescue and other special pxelinux initrd options trading boot disks. For more available options, run " syslinux --help ". Use simpler code that boots better. If you find a machine on which the " -s " option is required to make it boot reliably, please send as much info about your machine as you can, and include the failure mode.
This is useful for RAID-1 booting. SYS into the root directory. The user can then type a kernel file name followed by any kernel parameters. All that is required is pxelinux initrd options trading file in the root directory of the disk. If you are in doubt that your disk is normal enough, see this description.
Command line options for older versions deprecated: The Device should be unmounted before pxelinux initrd options trading the syslinux command.
The " -t " option if specified is used with a disk image file and specifies the byte offset of the filesystem image in the file. Note that the specific letter used for the byte offset option was changed in version 4. The -o option if specified is used with a disk image file and specifies the byte offset of the filesystem image in the file. CFG file in the following order:. CFG is in, unless preceded with a slash or backslash.
Keywords are case insensitive. Upper case is used here to indicate a word should be typed verbatim. Insert the contents of another file at this point in the configuration file. Currently, files can be nested up to 16 levels deep, but it is not guaranteed that more than 8 levels will be supported in future versions.
Labels are mangled as if they were filenames, and pxelinux initrd options trading be unique after mangling. For example, the labels "v2.
The default for " image " is the same as " label ", and if no APPEND is given then the default is to use the global entry if any. Chain loading requires the boot sector of the foreign operating system to be stored in a file in the root directory of the filesystem.
The following extensions are recognized case insensitive:. Adds one or more options to the kernel command line. These are added to both, automatic and manual boots. The options are added pxelinux initrd options trading the very beginning of the kernel command line, usually permitting explicitly entered kernel options to override them. This is the equivalent of the LILO "append" option.
A feature to break up a long line into multiple lines will be added eventually. The bitmask is an OR sum of the following integer options: The use of option 1 is no substitute for running a DHCP client in the booted system and should instead only be used to seed the client for a request. The use of this option is not recommended. If you have to use it, it is probably an indication that your pxelinux initrd options trading configuration is broken.
The following CPU features are currently reported; additional pxelinux initrd options trading may be added in the future:. As pxelinux initrd options trading version 2. Values other than those documented may produce undesired results. Cause pxelinux initrd options trading boot loader to report failure to the BIOS, which, on recent BIOSes, should mean that the next boot device in the boot sequence should be activated.
Perform a normal local boot. Starting with version 3. It supports multiple filenames separated by commas. This is mostly useful for initramfs, which can be composed pxelinux initrd options trading multiple separate cpio or cpio. This should not affect initramfs. Multiple uses will result in an override. As of version 1. Selects a pxelinux initrd options trading user interface module typically menu. The default is 1. If more than one label entry is available, this directive indicates how long to pause at the boot: The timeout is cancelled when any key is pressed, the assumption being the user will complete the command line.
A timeout of zero will disable the timeout completely. The default is 0. When only one label entry is available, the timeout is ignored.
To avoid automatically and immediately booting the only and default entry, use 'PROMPT 1' too, or add at least one additional label entry. Sets the command line invoked on a timeout. Enable a serial port to act as the console. If "baudrate" is omitted, the baud rate defaults to bps. The serial parameters are hardcoded to 8 bits, no parity pxelinux initrd options trading 1 stop bit. They may or may not correspond to the legacy port values 0x3F8, 0x2F8, 0x3E8, 0x2E8.
Halting the processor while idle significantly reduces the power consumption, but can cause poor responsiveness to the serial console, especially when using scripts to drive the serial console, as opposed to human interaction.
Some BIOSes try to forward this to the serial console which can pxelinux initrd options trading a total mess of things, so this option lets you disable the video console on these systems. Load a font in. Hopefully, it does nothing on others. Install a simple keyboard pxelinux initrd options trading. The keyboard remapper used is very simplistic it simply remaps the keycodes received pxelinux initrd options trading the BIOS, which means that only the key combinations relevant in the default layout -- usually U.
The included program keytab-lilo. Syslinux also ships a comboot module named kbdmap. Displays the indicated file on the screen at boot time before the boot: If the file is missing, this option is ignored. Displays the indicated file on the screen when a function key is pressed at the boot: This can be used to implement pre-boot online help presumably for the kernel command line options. In the configuration file, blank lines and comment lines pxelinux initrd options trading with a hash mark are ignored.
Note that the configuration file is not completely decoded. Syntax different from the one described above may still work correctly in this version of Syslinux, but may break in a future one. At present, there is no way to define constants or variables in the configuration file. That feature will be added eventually. Syslinux supports large kernels bzImage formateliminating the K size limit of the zImage kernel format.
If several initrd options are present, the last one has precedence; this permits user-entered options to override a config file APPEND. One of the main advantages of Syslinux is that it makes it very easy to support users with new or unexpected configurations, especially in a distribution setting.
If initrd is used to extensively modularize the distribution kernel, it is strongly recommended that a simple way of adding drivers to the boot floppy be provided. The suggested manner is to let the initrd system mount the boot floppy and look for additional pxelinux initrd options trading in a predetermined location.
The ID range 0xx3f is reserved for future versions or derivatives of Syslinux. See the " Display file format " page. Retrieved from " https: Personal tools Create account Log in. Slow, safe, stupid mode.
In some cases, this option might not change the result. Install a generic boot code to the MBR. Specify the byte offset of the filesystem image in the target "device". The offset option is applicable only when the target device is a disk image file.
Force zipdrive geometry -H 64 -S