09-26-2002
Re: /stand must be hfs
Quote:
Originally posted by yls177
/stand must be "hfs". is there any reason for that?
When a HP 9000 boots, the first thing that happens is firmware called pdc (processor dependent code) starts to run. Pdc can read files from a lif formatted area (the BDRA mentioned above). It will find a program called ISL and load it into core. ISL (independent system loader) is used for HP-UX and other HP os'es. It can load other lif area programs into core and run them. And there is a standalone program called "hpux" which is loaded into core by isl. The hpux loader must locate the kernel and read it into core. This means that the hpux loader must completely understand the filesystem by itself. So far it only understand hfs. My guess is that HP wants vxfs to settle down and become stable before they will add vxfs to the hpux loader. Rewriting the hpux loader to add vxfs is not a trivial task...
See the man pages for pdc(1M), isl(1M), hpux_800(1m).
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LEARN ABOUT FREEBSD
color.4th
COLOR.4TH(8) BSD System Manager's Manual COLOR.4TH(8)
NAME
color.4th -- FreeBSD color-detection boot module
DESCRIPTION
The file that goes by the name of color.4th is a set of commands designed to simplify color logic. The commands of color.4th by themselves
are not enough for most uses. Please refer to the examples below for the most common situations, and to loader(8) for additional commands.
Before using any of the commands provided in color.4th, it must be included through the command:
include color.4th
This line is present in /boot/loader.4th file, so it is not needed (and should not be re-issued) in a normal setup.
The commands provided by it are:
loader_color? Returns FALSE if the loader_color environment variable is set to ``NO'' (case-insensitive) or ``0''. Otherwise
returns TRUE (unless booting serial).
The environment variables that effect its behavior are:
loader_color
If set to ``NO'' (case-insensitive) or ``0'', causes loader_color? to return FALSE, indicating to many modules that color
should not be used.
FILES
/boot/loader The loader(8).
/boot/color.4th color.4th itself.
/boot/loader.rc loader(8) bootstrapping script.
EXAMPLES
Standard i386 /boot/loader.rc:
Use color where applicable:
loader_color="YES"
SEE ALSO
loader.conf(5), loader(8), loader.4th(8)
HISTORY
The color.4th set of commands first appeared in FreeBSD 9.0.
AUTHORS
The color.4th set of commands was written by Devin Teske <dteske@FreeBSD.org>.
BSD
August 6, 2013 BSD