Is there an easy way to change just one option in the kernel? I need to set something from =M to =N I tried installing the kernel source rpm according to the centos wiki site, then changing the .config, make oldconfig etc. but the always build always fails.
View 7 RepliesI'm using 2 cloned disks with CentOs5.3 and I need to be able to control which one is booted. I can specify which disk in the BIOS but after stage 2 it is always running from disk 2. When I have puppy linux on one disk and CentOs on the other I can boot off of either as selected by the system BIOS so the BIOS is not the issue. I think it is how the root option is passed in the kernel command in the grub.conf.
kernel /vmlinuz-2.6.18-128.el5 ro root=/dev/VolGroup00/LogVol00
I think when the OS searches for the /dev/VolGroup00/LogVol00 share is locates 2 since the disks are clones and uses the last one found. On information I have found for the kernel command and the root option it appears CentOs uses it differently. CentOs uses a volume name as specified /dev/VolGroup00/LogVol00 instead of a partition designator /dev/hda2. Is there a different way to specify /dev/VolGroup00/LogVol00 in CentOS for the root option for the kernel command of grub.conf?
I have installed centos 5.4 with samba 3.0.33-3.15. Now this server is PDC for a domain with 20 xp client. I want to set the "password must change" option in the samba user detail.Now I have this configurationmaximum password age = 68256000maximum password age = 0with pdbedit -Lv pippo
View 1 Replies View RelatedAfter upgrading from 2.6.18-194.32.1.el5 to 2.6.18-238.5.1.el5 EXT3-fs: Unrecognized mount option "mand" or missing value
View 1 Replies View RelatedWe are using vmware server 1.0.10, centOS distribution 2.6.18-238.12.1.el5PAE.
We started the vmware service successfully, however, while we do ifconfig, we did not see vmnet1, and we do ifconfig vmnet1 up, we see that vmnet1:no such interface.
We do use kickstart configuration file to customize the CentOS installation. In the partitioning screen, I do see a check box for encryption (encrypting the disk blocks).
I want to remove this checkbox in my kickstart configuration file. What is the option to use to get rid of this checkbox.
Im am building a Linux distro. It will be very tiny and fast.
I only have a minimal linuxkernel (bzImage) who is 1,2 mb big. And then I have Busybox who is 174,6 kb big.
The commands in busybox is: cd, ls, mkdir, rmdir, wget, httpd, clear, rm, poweroff, halt, reboot, fdisk, mount, umount, free, and cp.
When I compiled the kernel i use initramfs/initrd function and point it to a folder where initrd/initramfs source is.
The kernel works OK with others initramfs/initrd files. But not with my own.
Quote:
Here is how the end of the kernelcomplie look like.
Quote:
Here is my init file who is the initrd/initramfs source.
Quote:
The initramfs folder contains "bin" (folder) and "init" a file. No more.
The problem is that the kernel cannot find/read init file.
my problem is on installing nvidia driver on fc12 32bit but, first of all, as i understood the pae kernel requires more than 4gb of ram,i have a 2.2 ghz cpu with 2 gb ram,but when i run command:uname -r it answers: 2.6.31.5-127.PAE [i have fc12 32 bit] when we try to download linux we have a 32bit edition or 64bit edition,do we have an edition which is only for pae? or when we install for example the 32bit edition on a computer with more than 4gb of ram then the kernel automatically will change to be a pae kernel??
View 10 Replies View RelatedI have been reading for hours and just do not get how to do this simple task. I need to add a couple of kernel options to the 3rd menu item that shows in my grub.cfg list. I understand which files to edit (not grub.cfg) and run the updater.
If I look in /etc/default/grub I cannot figure out how to add a kernal parameter unless it is the default.
So basically I want to change the equivilent of this line below:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
But for a kernel menu item that is not the default.
I installed Jolicloud in a new partition to give it a try. It's pretty nice. Anyway, it took over my bootloader, which didn't really bother me.
Now my kernel has automatically been updated to 2.6.35-22.41 or something. The option to boot from the new kernel does not appear. As you might imagine, I want to do that. My old bootloader updated this stuff automatically.
I have had Linux running in our product that has several serial ports.(Another Ethernet to Serial port translator). It has been running OK for about 6 years, using kernel 2.6.11, then 2.6.18. Now I just got 2.6.39.1 running and suddenly I get these "I/O Possible" messages and my programs shutdown. I found elsewhere that the cure for this is to put a "signal(SIGIO, SIG_IGN)" call to stop this signal from crashing the program. This works, but I would really like to know the reason that this started happening in the first place.
Could there possibly be a 'config' option I missed that causes this? It just surprises me that the kernel writers would implement something that has such a large impact on the existing code base, causing anyone using serial ports, or anything else that might trigger a SIGIO, to have to edit, recompile, and redistribute their programs.
How to change the kernel behavior, short of going in and hacking the kernel. Or at least an idea as to why they would have changed the default behavior.
I have Suse 10 and Suse 11 and I need to add the option elevator=noop
Code:
Suse 11
Code:
By the way I think I added correctly
Ok my question is: I can add this noop option on the fly by
Code:
But since I have sdb and sdc... I have to run that command three times it does not bother me I am worry about is what happens when my server is rebooted.
There won't be any noop option for sdb and sdc since they are not included on my boot parameter.
How can I automatically add noop to my sdb and sdc?
I downloaded kernel 2.6.30 for my project. But I want to see the all symbol and debugging information. So, I try to use option "-g" with make file I don't know how...
I just know the make kernel "make all"
If I want to use "-g" option for vmlinuz with whole symbol for debugging, how can I put that "-g" option into the "make"
Do I have to modify the "Makefile" ? or "only command is possible like make -g something...."
How I can compling the kernel with -g option....
I`m switched to Firefox 3.7 alpha, i made a desktop shortcut using "ln -s" and now I want to change the icon but there are no option for that.. see screenshot:
Is a way to do that with a command or something?
I have recently upgraded my laptop to Ubuntu 9.10
From 9.04
and have noticed that the option to change your login screen theme is different and was wondering how you can change the theme
When setting up a new pop3 accounr in evolution, I dont see any option to change the port, my pop3 server requires port 110.Is there a way to check or alter this in Evolution
View 1 Replies View RelatedI have a problem. Is there any way to change the folder option so that when i open a folder it opens in the same window instead of the new window
View 1 Replies View RelatedI'm running Squeeze and I've been running into the r8169 hang problem (see [url]for example). A temporary (until the driver foibles in the kernel are resolved) solution that seems to be working for many people is passing the boot option "pcie_aspm=off" to the kernel.
Apparently, either I don't understand grub2 at all or my kernel doesn't like me very much. I put the option in grub.cfg like so:
However, it appears that the kernel, for whatever reason, is either not being given this boot option or it's not interpreting it correctly. When I run lspci -vv I get this for my r8169 ethernet card:
The relevant section is LnkCtl: ASPM L0s L1 Enabled; indicating that ASPM is still on.
I have just installed Ubuntu 10.04 where kernel 2.6.32-30-generic-pae is default. Also installed the latest stable kernel version 2.6.38.3
I need to have the latest kernel version in boot screen without affecting the older. What are all things I need to update ?
I have a loadable module, simple enough I believe it should run on any 2.6 kernel. I want to force the load and test that assumption. How can I do it?
ismod does not seem to notice the -f in 2.7 modprobe has -f but cannot locate the module.No go. So I read the manpage for modprobe which says: modprobe looks in the module directory /lib/modules/'uname -r'.So I copied MYMODULE.ko to /lib/modules/2.6.(the only directory in here) and type: modprobe -f MYMODULE.ko.Still can't locate MYMODULE.ko.I notice there are no other .ko modules in that directory; so I go in deeper to kernel/drivers/char, guessing about the char directory, and copy MYMODULE.ko there.
My laptop has only 2GB of RAM so I don't think I need the PAE kernel, also there are some drivers that I want to install, they were built for non-PAE kernel.
So far I read that I have to change the :
/etc/sysconfig/kernel
---------
# UPDATEDEFAULT specifies if new-kernel-pkg should make
# new kernels the default
UPDATEDEFAULT=yes
[Code]....
How do my user change password in webmail because there is no option to change password in my webmail. How to change password in webmail. I am using centos5.
View 1 Replies View RelatedI need to install any version of Debian with the Debian Kernel version 2.6.22-3-686. I don't mind what version of Debian it is, I just need it to have this specific kernel! Debian Etch comes with 2.6.18-4-686 and Lenny comes with 2.6.26-2-686 so the kernel I need is obviously somewhere in between.
I have tried using the following commands to see if kernel 2.6.22-3-686 is available for download via the apt-get method in both Debian Etch and Lenny but it is not...
apt-cache search linux-kernel
apt-cache search linux-source
So does anyone know where/how I can download specific kernels and install them for use? I have a computer sitting next to me that has multiple kernels as an option on boot, and they all boot into the same system, however I do not know the person who set up the computer so cannot ask them how they did it
Is it possible using YAST to make it possible to be given the option to boot the previous kernel when a new one is installed during an update?
View 9 Replies View RelatedI was trying to know if relatime or noatime was set on a filesystem, but i didn't found the information, neither in /etc/fstab, neither in kernel boot options.
First of all, it seems clear that i don't have the "normal" behaviour on atime:
root@antec:/tmp# rm -f test.txt; echo a>test.txt
root@antec:/tmp# stat test.txt | grep -i 2011
Access: 2011-08-01 21:54:30.000000000 +0200
Modify: 2011-08-01 21:54:30.000000000 +0200
[Code]....
- Is noatime or relatime a default mount options, and if yes, from which kernel release ?
- Is there a way to see the default mount options (ie: how can i see why i don't have the "normal" atime behaviour ?)
My clock needs to be set to usa time with am and pm But I don't see any option to select that? So I read online that I need to edit /etc/adjtime and change it from UTC to LOCAL
Problem is when I'm in the terminal it tells me I'm not in the sudoers file? So how do I fix my clock? its insane that I cant change the option in the clock options, and its also nuts that even though I created a root password I can't seem to just sudo and change it?
I just got to finish installing ubuntu lastest version on my new netbook, im really exited about how powerful it can get. The thing is, I'm still keeping my old Windows 7 partition and data, and I want to access it faster, editing the grub options, to change the timer on it, and the default booting option.
View 6 Replies View RelatedI've installed Windows 7 Ultimate on a notebook which previously ran Vista. No problems there.I've now installed Ubuntu (now updated to 10.04)so that it can boot to either OS.
It all works fine and when I first power up, I get a screen which invites me to select the OS I want to use. There are however two problems:
1) it defaults to Ubuntu (whereas I would prefer it to default to Windows 7 (it's a work laptop and most of the applications are Windows-specific),
2) the list of choices is getting increasingly complex with an expanding list of choices (with each major update of Ubuntu adding more); it even seems to include an option to go back to Vista!As long as I move down the list and make the right selection quite speedily, I get to where I want to be (though, as I say, I would like to change the default option).Is there any way I can edit/shorten this list without damaging the functionality and how can I change that default?
Where do I change the option to have samba start during the boot process? I've googled and I've found old posts that say it's a line in /etc/rc.d/rc.inet2 but in my semi-current box, I don't see the part about starting stopping the samba server.
View 5 Replies View RelatedI need to change from CentOS 4.8 to Redhat Enterprise 5.
1) What is my best option to upgrade and maintain the additional software that I have installed in /opt & /usr/local?
2) Process to reinstall/configure the additional drives during & after the install?