Visit Jeremy's Blog.
Go Back > Forums > Linux Forums > Linux - Distributions > Debian
User Name
Debian This forum is for the discussion of Debian Linux.


  Search this Thread
Old 08-29-2005, 06:31 PM   #1
Senior Member
Registered: Feb 2004
Location: Middle of nowhere
Distribution: Debian Squeeze
Posts: 1,249

Rep: Reputation: 48
Kernel Boot parameters sources?

I have seen loads of Linux error problem getting solved by giving proper Kernel boot parameters in the grub.conf or lilo.conf file like:

no lapic, pci=biosirq, vga=771, ide=nodma, and so on...

Does some know a proper source where we can get an entire list of such parameters? Does these option appear when we do make xconfig or make menuconfig? I have found some web-pages listing these options but none of them are comprehensive.

Also when we boot the kernel with these option exactly what change in kernel happens? Does the module get's disabled or some part of code is not executed?
Old 08-29-2005, 08:19 PM   #2
LQ Guru
Registered: Feb 2004
Location: SE Tennessee, USA
Distribution: Gentoo, LFS
Posts: 8,450
Blog Entries: 4

Rep: Reputation: 2915Reputation: 2915Reputation: 2915Reputation: 2915Reputation: 2915Reputation: 2915Reputation: 2915Reputation: 2915Reputation: 2915Reputation: 2915Reputation: 2915
I believe that you will find this (somewhat) documented in the /Documentation section of the Linux source-tree. (Look under /usr/src.)

Kernel parameters are not specified in make ...config, et al, and a moment's reflection will reveal why this is so. The purpose of a kernel-parameter is to provide some tidbit of information to the kernel, to init, or even (through /proc/cmdline, to running programs. This information is provided at boot-time and can be changed with each reboot. It doesn't have anything to do with how the kernel has been constructed ... as the various makes do.

Anyone can see what the parameter-string is. The mkinitrd script, the kernel, the init process, the /etc/rc.sysinit script, device-drivers, and any user-level program that reads /proc/cmdline can all refer to it.


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
kernel boot parameters for low latency rhythmking Slackware 0 01-16-2005 09:10 PM
fedora 3 get stuck at 'configuring kernel parameters' message at boot badsykes Linux - Newbie 5 11-18-2004 04:03 AM
Passing kernel parameters at boot with LILO Crashedfiesta Linux - Laptop and Netbook 2 12-16-2003 08:51 AM
boot kernel parameters? Z-Ice Linux - Software 1 08-07-2003 07:14 PM
CAVEAT: /boot/kernel.h & how not to clobber your kernel sources (Conectiva, Red Hat) JCCyC Member Success Stories 0 08-07-2003 07:49 AM > Forums > Linux Forums > Linux - Distributions > Debian

All times are GMT -5. The time now is 08:44 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration