General :: Pass Options To A Kernel Module Through The Boot Parameter?

Nov 4, 2010

I have an issue that is fixed by changing the lpfc driver to run using MSI interrupts. This is done by adding "options lpfc lpfc_use_msi=2" /etc/modprobe.conf.local file.

Is there a way to make this change using kernel boot parameters?

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Debian Configuration :: Properly Pass The Options To A Module?

Oct 26, 2010

I'm running Testing and need to pass some parameters to my bttv tv tunner card, for this reason I created the following file /etc/modprobe.d/kozumi.conf with this content:

alias char-major-81 videodev
alias char-major-81-0 bttv
options pll=1 radio=1 bttv_verbose=1 card=151 tuner=38 gbuffers=4

The problem is that for some reason this options aren't properly set after booting the computer, I've tried different combinations for line 1 and 2 without success.

I'm used to rmmod the bttv driver and modprobe manually with those settings but I'd like to automate the process.

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General :: Pass Response As Command Parameter?

Mar 10, 2010

I have a backup schedule running a full backup everyday. I'm using webmin to manage these backup now. The problem is when the dump command sends a prompt asking if we want to rewrite the tape, Webmin does not display this prompt and we end up having to terminate the backup -> erase the tape(which takes a long time) and then run the backup again.I was wondering if there is a technique that could be used to pass "Yes" as a parameter to the dump command, much like in windows? or if there is a more efficient way of getting this done.

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Fedora :: How To Set Kernel Module Options In 12

Mar 23, 2010

The problem I'm facing is that I can't use my headphone. Sound works, but not the headphone. See my ealier thread. It was suggested to edit the module options, but I don't quite know which buttons to push.

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Programming :: Pass By Reference A Parameter Without Assigning A New Object?

Dec 28, 2010

How can I pass by reference, a parameter, without assigning a new object? In my first example, var = "changed" creates a new local object. In the second, mylist.append will affect the reference target. How to i achieve the same effect with example 1?

var = "unchanged"
def print_string( var ):


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General :: Making Sure A Module Is Loaded In The Kernel Upon Boot?

Dec 22, 2010

im doing a school assignement and i cant find any info about this anywhere. How do i make sure that a module is loaded into the kernel upon boot?

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General :: How To Recompile My Module On Boot Time With Kernel

Jan 25, 2010

I am using FC9, I want to write a module that will always show current time after booting.But for that I need not only to load module using insmod/modprobe, but also to compile that module during boot time.How can I perform this 2 steps correctly.

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General :: How To Change Kernel Parameter

Oct 11, 2010

i m using following kernal.


# uname -r

According to security manual i need to incorporate following changes into kernal parameter but i m not sure when and how these changes will be implemented.


net.ipv4.conf.all.accept_source_route must be set to "0"
net.ipv4.ip_forward must be set to "0" (zero)
icmp_echo_ignore_broadcasts must be set to "1"
net.ipv4.tcp_syncookies must be set to "1"


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General :: Adding A New Kernel Module To Wireless Driver Module?

Apr 22, 2010

I want to add some code in existing linux2.6.33.2 to enhance kernelI want to know how to start and where to add code.

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General :: What Are Implications Of Using 'noapic' Kernel Parameter?

Aug 4, 2010

I recently enabled noapic on my laptop because it was experiencing strange input freezes on several distros that I tried.Ok, so it does not use the ioapics. My question is, what does this mean for the system? If it used apics before, what happens now? I am a freshly graduated computer science major, and I have worked with basics pics on projects before, but I am curious how this effects the running system.

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General :: What Is Default Kernel Parameter Values

Mar 3, 2010

What is the default kernel paramtre valus for linux RHEL Machine?

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General :: Install Module U32 Into The Netfilter Module For Kernel 2.6.27

Jan 30, 2011

I need to install module u32 into the netfilter module for kernel 2.6.27.

I did not see the source code in the kernel version I have. where can I find the code for U32 module.

I have checked "" and looks like POM is discontinued. Is the u32 module committed to kernel version 2.6.27 or need to patch it. If yes, where can I find the patch?

I building the kernel for a MIPS processor.

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General :: Adjust The Semmni Kernel Parameter In Fedora 13?

Sep 13, 2010

I've done the usual edit of /etc/sysctl.conf to include the parameter, but it just tosses errors. I haven't had to tune a kernel in a very long time, what's different about it nowadays (or have I simply forgotten how)?

edit: Added "kernel.semmni = 2048" to the tail of /etc/sysctl.conf and then ran "sysctl -p". End result is an unknown key error (apparently kernel.semmni isn't the valid name anymore?).

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General :: Grub: Kernel Parameter RO But Filesystem Still Gets Mounted Rw?

Jan 13, 2010

I am trying to do a fsck on my ext3 partition, but so far failed to let the system come up in single user mode and having the partition mounted read only. It says in the kernel parameter that it is read only (RO) but still mounts it RW. A remount with mount -o remount,ro does not work, since / is always busy. what to do to get a fsck done? I don't want to boot into a rescue system, this should be possible on a running system (like Windows does it, when rebooting)

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General :: Don't See -k Parameter In Recent Modprobe (missing Parameter)

May 4, 2010

I got the following modprobe scripts modprobe -k -q streams what does the -k parameter mean?. is it exist in older modprobe? I don't see -k parameter in recent modprobe.

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Software :: What Options To Pass To Compile Something To /usr/lib64

Apr 30, 2010

I'm trying to install a newer version of libevent than is on my machine, so I can install memcached. However, the install for memcached complains that the libevent library isn't in /usr/lib64 and that it isn't 64bit.What options do I need to pass to ./configure to get it to compile as 64bit and/or into the /usr/lib64 directory? This is what I have at the moment:

CHOST="x86_64-pc-linux-gnu" CFLAGS="-O2" CXX=gcc CXXFLAGS="-O2" CC=gcc CXX=gcc ./configure --prefix=/usr

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General :: Pass Kernel Argument To Load Ubuntu?

Mar 11, 2010

The ide has xp and I installed debian on the sata, the duel boot worked fine and still does. I then installed unbuntu on the sata along with debian but can't access unbuntu. when I tryed to install grub it error'd out so I bypassed that and finished the install. It told me I would need to pass a kernel argument to load ubuntu but I'm clueless about what that means.


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General :: Set Parameter At The Boot Command Line?

Aug 20, 2010

I am following an instruction on the Internet to set up a timer=1. "You can force use of the timer interrupt by using the timer=1 module arameter (or oprofile.timer=1 on the boot command line" When I type "modprobe oprofile timer=1" at the command line, I got a warning message saying that "Deprecated config file /etc/modprobe.conf" So i want to try other way by setting it at the boot command line.

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General :: Boot - Maximum Vmalloc Parameter Size?

May 31, 2011

First off all, I'm booting from a large MEMDISK using PXE (900MB) . Due to our environment, I cannot decrease the size, nor move files to a nfs/iSCSI/... environment. Everything needs to be in that MEMDISK.

Now, when I try to run the OS, I get out of vmalloc space. How do I increase it to a number which allows such a large image to be mapped? I tried the parameter "vmalloc=1280M", but with that parameter, I don't get past the Booting the kernel screen.

Memory should not be an issue, since the machine(s) have at least 2GB RAM. (900MB MEMDISK + 256MB for other kernel stuff + 768MB for user stuff). The machine(s) have a Pentium 4 Extreme Edition processor, with hyperthreading and SSE2, but no EM64T.

How can I boot the system, and get past that message? Decreasing the MEMDISK size is not possible too. It is at the smallest we can get with our userland + kernel + modules.

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Ubuntu Networking :: Pass Custom Options To Network-manager-pptp?

Jul 27, 2010

I have ~20 log entries/second in syslog

nm-pptp-service-1078 log[decaps_gre:pptp_gre.c:414]: buffering packet 57467 (expecting 57429, lost or reordered)


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Fedora Installation :: How And When To Load Kernel Module In Boot Up Process?

Jul 19, 2010

For a diskfull node (the OS installed in a disk), I can use the 'insmod' command to insert a kernel module into the kernel. And after the reboot, the module is still in the kernel. I have a question here: how, when and which kernel module will be loaded in the boot up process for a diskfull node?And for the diskless node, can I use the chroot or some other ways to install the kernel modules into ramdisk, so that kernel module can work when the diskless node boot up? I think it needs certain mechanism to load the kernel like the boot up of diskfull node.

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OpenSUSE Install :: Boot.preload Complains About The Missing Preloadtrace.ko Kernel Module?

Nov 23, 2009

I've built my own kernel and now boot.preload complains about the missing preloadtrace.ko kernel module.

Where can one find the source for this module?

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General :: Where To Find Kernel Options ?

Jan 7, 2011


How do I know what option means what to compile my own kernel? How to find support for different hardware in this mess (and exclude it)?

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General :: Getting Error "invalid Module Format" And "insert Kernel Module" / What Is This?

Feb 22, 2010

What is the error "invalid module format" and the message "insert kernel module" mean? And whats the reason for the same?

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General :: New Kernel Options To Consider - Including In The Build ?

Jun 27, 2010

I'm building the 2.6.34 kernel and I notice some interesting options, which you may want to consider including in the build, if you are building it:



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Ubuntu Installation :: How To Add A Kernel Parameter In Grub2

Apr 16, 2010

I have not dug into Ubuntu for almost a year now (Since Jaunty, really). I am trying to come to grips with Grub2, but have just now encountered it in Lucid. I am having a terrible time with the graphics chipset, and it may well be that Ubuntu cannot be used on this computer (an older laptop with the dreaded Intel 82845G graphics chip). There are a number of older bug reports that it is unsupported, but some success in more recent versions.

Anyway, one suggestion has been to add i915.nomodset=1 to the kernel boot line. Now, this was a cinch in Legacy Grub, but I have been reading Grub2 wikis and tutorials for two days now, and I know about the config files, but I cannot find anything which tells me specifically how to add a parameter to the kernel boot line.

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Hardware :: Webcam What Kernel Parameter To Select?

Apr 20, 2011

I have a "Chicony 1.3M UVC Webcam (Asus G1S notebooks)" webcam, which is supported by Linux UVC [1]. However I'm unable to find the kernel parameter that I should select to compile my kernel to support this device.

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CentOS 5 :: Kernel Parameter Available For Interrupts Handling?

Sep 16, 2010

Is there any Kernel parameter available for interrupts handling, In the case of busy server how we can tune the kernel to handle interrupts effectively.

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OpenSUSE Multimedia :: Nvidia And Nomodeset Kernel Parameter

Jul 17, 2010

It's documented in the howto's that you need to have the nomodeset kernel parameter specified if you want to run the proprietary Nvidia driver. But I read in certain posts that this is only required for "older" graphics cards.Can someone shed some light on this? Is the parameter ALWAYS required when running the nvidia driver, or only for certain graphic cards?

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Ubuntu :: Resources Not Safely Usable Due To Kernel Parameter

Oct 22, 2010

Hey,everyone! I've got Ubuntu 10.10 , when loading I see the following message:
"atk: Resources not safely usable due to acpi_enforce_resources kernel parameter"
What does it mean and do I need to fix it?

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