04-30-2017
Bootloaders question
actually i got the concept of boot loaders : it reside in MBR and its function is to load the root file system of os into memory i.e. to load whole os into memory when system starts.
i have got a list of doubts to clear
Quote:
when installing a fresh OS , does installation process install the boot loaders from that OS into MBR and load the entire OS from cd or dvd into Hard drive and at the same time into memory.
Quote:
what dose it mean by usb boot loader : does that means we are installing Os from a usb drive or it require a special boot loader that loads OS from usb into hard drive.
Quote:
Does boot loader also take part in installing fresh OS.
Quote:
is syslinux a boot loader that installs OS from usb drive that is partitioned with window format. Does that means in that process we have two boot loader : syslinux boot loader loads LINUX OS and then the default OS boot loader loads OS into memory every time we do fresh start.
Last edited by lobsang; 04-30-2017 at 01:11 PM..
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LEARN ABOUT SUNOS
modules-load.d
MODULES-LOAD.D(5) modules-load.d MODULES-LOAD.D(5)
NAME
modules-load.d - Configure kernel modules to load at boot
SYNOPSIS
/etc/modules-load.d/*.conf
/run/modules-load.d/*.conf
/usr/lib/modules-load.d/*.conf
DESCRIPTION
systemd-modules-load.service(8) reads files from the above directories which contain kernel modules to load during boot in a static list.
Each configuration file is named in the style of /etc/modules-load.d/program.conf. Note that it is usually a better idea to rely on the
automatic module loading by PCI IDs, USB IDs, DMI IDs or similar triggers encoded in the kernel modules themselves instead of static
configuration like this. In fact, most modern kernel modules are prepared for automatic loading already.
CONFIGURATION FORMAT
The configuration files should simply contain a list of kernel module names to load, separated by newlines. Empty lines and lines whose
first non-whitespace character is # or ; are ignored.
CONFIGURATION DIRECTORIES AND PRECEDENCE
Configuration files are read from directories in /etc/, /run/, and /lib/, in order of precedence. Each configuration file in these
configuration directories shall be named in the style of filename.conf. Files in /etc/ override files with the same name in /run/ and
/lib/. Files in /run/ override files with the same name in /lib/.
Packages should install their configuration files in /lib/. Files in /etc/ are reserved for the local administrator, who may use this logic
to override the configuration files installed by vendor packages. All configuration files are sorted by their filename in lexicographic
order, regardless of which of the directories they reside in. If multiple files specify the same option, the entry in the file with the
lexicographically latest name will take precedence. It is recommended to prefix all filenames with a two-digit number and a dash, to
simplify the ordering of the files.
If the administrator wants to disable a configuration file supplied by the vendor, the recommended way is to place a symlink to /dev/null
in the configuration directory in /etc/, with the same filename as the vendor configuration file. If the vendor configuration file is
included in the initrd image, the image has to be regenerated.
EXAMPLE
Example 1. /etc/modules-load.d/virtio-net.conf example:
# Load virtio-net.ko at boot
virtio-net
SEE ALSO
systemd(1), systemd-modules-load.service(8), systemd-delta(1), modprobe(8)
systemd 237 MODULES-LOAD.D(5)