CentOS 5 :: Running System-config-boot In 5.4?
Nov 9, 2009
I'm installing CentOS for the first time to run mythtv on (I previously used Fedora, but the new version cycle was too quick). As part of the instructions I'm using, I am told to run system-config-boot (to ensure that centosplus kernel is loaded on boot). The problem is, I cant find this option in my installation of CentOS. Another option I have is to manually edit the grub.conf file, but I'm not sure exactly how I should edit it.
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Aug 6, 2010
I am a long time Unix system admin and this one has got me stumped.When I try to run the system-config-network (or any of the system-config-xxx programs) from the links on the GNOME interface, I get a message pop-up that says, "Unknown error" and no additional information. I have also opened a terminal and run it from the command line (/usr/bin/system-network-config) and I get the same "Unknown error" pop-up. I was not the one who originally configured this server, so I am not sure of the history or how it might have been broken. I can't seem to find any debugging information or even any command line parameters that might give me a clue what the complaint is. There is no error number or any other helpful hint as to the cause of the problem.
I have been manually editing the config files so the server is up and running but it is tedious to manage the server without the GUI.Has anyone seen this before? I assume it is a configuration issue, but I am not sure where to look.uname -aLinux xxxxserver 2.6.18-164.15.1.el5 #1 SMP Wed Mar 17 11:30:06 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux/etc/redhat-releaseCentOS release 5.4 (Final)
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Sep 21, 2010
I've read about some sort of tools that help with kernel configuration.Can anyone tell me anything about these?It seems that you use the tool(s) on a running system. You use the running system for a while. The tool(s) gathers data and leaves bread crumbs. The tool(s) then process the bread crumbs to create a candidate config file for a fresh kernel build. The goal is a kernel build that contains parts you actually use and omits parts you don't use or don't need -- all the while using arcane knowledge of dependencies among various kernel features to (hopefully) avoid building a still-born kernel.
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May 23, 2011
I accidentally deleted my .config for my kernel configuration on Linux, and seem to remember there was a way to retrieve the kernel configuration via the proc filesystem somehow. Is this still possible, and if so how would I do it?
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Apr 10, 2009
I tried to run system-config-kickstart when after full installed CentOS 5.3,it report error as following,does anyone face the same problem?
[root@localhost ~]# system-config-kickstart
Loaded plugins: fastestmirror, kernel-module, priorities, protectbase,
: versionlock
[code]....
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Jun 29, 2010
I am very interested in using CentOS as a server for diskless PXE booting and was wondering if this was a possibility. I have a working DHCP/TFTP/HTTP system set up and going and I can get my client machine to boot a linux image without any problems. Ideally I would like the diskless machines to be able to immediately load an image through PXE and store their own filesystems on the server through the use of NFS.I heard about system-config-netboot and got very excited because it sounded like something that would help me set up a diskless system. However, after doing some research I have heard from many that it is generally buggy and unlikely to work. When I tried using it I got the error: "The diskless directory must be NFS exported and contain a boot sub-directory"Even though my diskless directory WAS nfs exported and most definitely contained a boot sub-directory. Does anyone have any advice on using this tool, or using CentOS as a server for diskless clients?
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Feb 24, 2010
system-config-samba doean't work from terminal neither it is shown in graphical mode, i cannot see system > administration > servers. Server is missing.
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Sep 6, 2010
I trying to set up a LDAP server using openLDAP / db4. The server runs fine but I cannot get the client to work. Client and server are on the same machine, as for now. The problem seems to be in PAM. However I cannot start the system-config-authentication tool which should do the trick.
Environment
=========
CentOS release 5.4 (Final)
Software
======
authconfig-gtk-5.3.21-6.el5
system-config-securitylevel-tui-1.6.29.1-2.1.el5
system-config-network-tui-1.3.99.18-1.el5
[Code]....
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Jul 14, 2009
I have a Samba File Server that can authenticate users in my Windows AD to log into the server. Anyways, I have a good amount of Windows Admins on staff but our org wants to cut budget so our first "slash" as it were is cutting down the actual Windows based File Servers.So my question is, now that I have this test server up and authenticating for logins using Windbind....is there a way I can get system-config-samba to "see" winbind users and groups so that file servers can still be "point and click" for my Windows Admins?
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Jan 7, 2011
After an upgrade (preupgrade) from Fedora 12 to 14, system-config-boot opens from the menu and displays the right information but does not change grub.conf. I have searched the forums and found nothing like this. It worked before the upgrade. I have forced a new install of system-config-boot. I can change grub.conf manually. There are no SElinux messages that I can find. It would be nice to get the gui working.
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Jan 17, 2010
i have a VPS server running centOS 5 and i need to edit the boot loader config file but my VPS does not seem to have the usual suspects of grub.conf or lilo any where on the system.
where the boot loader config file might be or what it might be called ?
If it helps to know, the VPS was setup instantly the moment i bought it.
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Aug 1, 2010
I want to add my printer to ubuntu 10.04. When I run the system-config-printer (System->Administration->Printing) I can't choose the "Add" in the menu bar (ctrl+n does not work either).
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Jun 3, 2010
I am running a CentOS 5.5 system which does NOT support VT Technology, so I am unable to use Xen HV. I am very happy with OpenVZ other than the fact that it doesn't support Windows, only Linux.I'd like to have VMWare Server 2.x installed, but it appears that OpenVZ changes the Kernel to, in my case, 2.6.18-194.3.1.el5.028stab069.6. The default kernel on my system is 2.6.18-194.3.1.el5.i386.If I change grub to load 2.6.18-194.3.1.el5.i386, VMWare will work but OpenVZ will not. If I change grub to load 2.6.18-194.3.1.el5.028stab069.6, OpenVZ will work, but VMWare will not.If I try to run /usr/bin/vmware-config.pl while in the 2.6.18-194.3.1.el5.028stab069.6 kernel, I get an error of:
None of the pre-built vmmon modules for VMware Server is suitable for your running kernel. Do you want this program to try to build the vmmon module for your system (you need to have a C compiler installed on your system)?Using compiler "/usr/bin/gcc". Use environment variable CC to override.
What is the location of the directory of C header files that match your running kernel?[/usr/ src/ linux/ include]I'm so lost as what to do now..is there anyway I can compile both of the kernels together somehow?
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Sep 7, 2009
I was tryin to deploy svn on centos 5 with respect to [URL] I am stuck understandin the location svnpath parameter on svn config
[Code]...
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Jul 31, 2009
I have Centos 5.3 on our server When I log-in in webmin I have a message "Warning - Your system is actually running CentOS Linux version 5.3." In the next line I have a button "Update Detected Operating System" My question is Do I need to click the link and update Detected operating system? If I do, is it going to change any configuration on our server?
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Jun 9, 2011
is it possible to create a live cd or a cd/dvd installer from a running system.
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Jan 26, 2011
have all ways been hiding in the background read not say a thinglets start well i look after 2 dell poweredge 2650 with 12 gig ram installed servers has been running fine onwell i though it was time to upgrade to 5 all went fine till reboot Memory for crash kernel (0x to 0x) not within permissible range ! well what i have been reading this is the norm for now What is mean by ignore it? LoLwell so i did the system keeps boot till i get to this linesbin/mingetty: /sbin/mingetty: cannot execute binary file alot, and it shows. INIT: Id "5" respawning too fast: disabled for 5 minutes ...so maybe its a memory issue so took 8 gig out left 4 in the system now it reboot alls good with only 4 gig of ram installed so is there a way to fix it to use all the ram can i get the system boot on 4 gig and then add the 8gig later on
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Aug 31, 2009
We have 2 applications set as S96 and S98 at rc3.d and rc5.d simultaneously. Both applications create a system V shared memory segment by calling shmget.If the system boot at runlevel 5, both applications can obtain their shared memory segment id correctly, i.e. 98305 and 131074 individually. While there is a root owned segment id 32768 takes first seat on the list. This is the id list:
root, 32768
S96_app, 98305
S98_app, 131074
[code]....
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Feb 27, 2011
I would like to build a bootable system image on an attached hard disk on a running CentOS machine.The hard disk would be moved to a headless server, where only SSH access would be available. It seems that all the documented install methods assume that the installation runs on the taget machine. In this case, I would like to create a bootable system image of CentOS on a running host system. The new install mage would generally have a newer version of CentOS than the running host system where the image is created. Also, I would prefer
to do a text-based install.
The reason for all this is that I have network access to several remote machines. I can ask disks to be moved between machines, but I have no physical access. In order to do software testing, I would like to have several system disks with different installed CentOS versions. It would be easer if I could build the system disks on one single machine. The hardware an all machines is very nearly identical.
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Feb 1, 2011
How to change boot loader from Grub to syslinux on running Lenny without damage the system?
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May 31, 2010
I am/was(?) running a dual boot Windows 7 Home Premium and Fedora 12 system on an AMD Phenom platform.
I thought that I would try the KDE desktop and installed it with the command
yum groupinstall "KDE (K Desktop Environment)"
After tasting KDE for a while I decided that I far prefer Gnome.
I removed the KDE with
yum groupremove "KDE (K Desktop Environment)"
This appeared to work but I then found that whilst I can boot into Windows 7, I can no longer boot into Fedora 12.
I have tried booting the F12 DVD and going into to the Rescue function. I re-installed grub but still cannot boot into F12.
I have looked at grub.conf but can see nothing wrong.
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Nov 3, 2010
I upgraded from Ubuntu Desktop 10.04 to Ubuntu Studio 10.04 and running a dual boot system with Windows. On the grub screen there are four listings now for Ubuntu. Two recover modes and two ubuntu modes. Is this normal? Going to reboot and see if I can get a picture of it.
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Oct 4, 2010
I've tried to read many of the topics in this forum first and tried to find a solution to my problem, but can't find one.I'm testing CentOS 5.5, it's the first time I'm using a CentOS Linux release.I'm trying to configure the proxy "client side " on it and cannot find how to do it.On other Linux release I've used the ENV variable like "http_proxy" or "HTTP_PROXY" etc etc.This time, I don't know why but it doesn't work.I've put the name and @ip of the proxy in /etc/hosts and tried different version upper/lowercase of "http_proxy" "HTTP_proxy" "ftp_pr.." but it doesn't work.If I configure manually Firefox and puting the name or @ip of the proxy we have on our network, it works.But if I try to use ENV variable it doesn't work...
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Jan 18, 2010
I've been trying to run the vmware-config.pl, but I'm getting this message
Quote:
None of the pre-built vmmon modules for VMware Server is suitable for your running kernel. Do you want this program to try to build the vmmon module for your system (you need to have a C compiler installed on your system)? yes
Then I hit enter, and later get this message
Quote:
Unable to build the vmmon module.
I have installed gcc and the kernel-devel tools, and after installing all that I did an update, but still not getting through with the configuration.
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Mar 23, 2010
I just done a brand new install of fed12 and did all the yum updates. Apache seems to start ok and I always liked the http config tool but it won't run on Fedora 12. I downloaded and installed system-config-httpd.noarch 5:1.4.6-1.fc12 and it all went fine but when I try to start it I get the usual box asking for my root password, I type it in and press enter, the box disappears and then....nothing. If I run system-config-httpd in a terminal I get the same box asking for root passowrd but when I enter it I get a long scroll of text which ends with:
line 4: 2137 Aborted (core dumped) /usr/bin/python /usr/share/system-config-httpd/ApacheConf.py
I don't know what causes this. Is there any way to get the http config tool working?
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Oct 17, 2010
I'm looking to extract a config from a working kernel..that much was pretty easy..all ya gotta do is "cp /proc/config.gz ." which will put it in whatever directory you're currently in and then do a "gzip -d config.gz" to get the config file.
Now...after that it gets a bit tricky..Linus says you should never compile a kernel in /usr/src/ because those header files in ../include should never change. He says you should extract a new kernel gz in your home directory and compile it there. I tend to agree (who am I to argue?). Anyway..whereever your sources are this is where you need to copy the config file...
Like this...my home dir is "/home/dart". So I would put the kernel sources there under "/home/dart/linux". I would cd to /home/dart/linux and do "cp /proc/config.gz ." then "gzip -d config.gz" which should leave you with a file called "config", then "mv config .config"
Now here's where I run into a problem..when I do "make xconfig" I get this...
Tried to install the qt3-devel packages from CD but guess what? I ran into cdrom errors which is what I was trying to fix in the first **** place...catch 22 eh?
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Mar 29, 2009
I am running a server (multipale roles). The base OS is Centos 5.2 and an xen kernel... The system is usually headless... Most of the work i do is also through terminal. However I have come across multiple situations that require me to visually have access. The problem I am running into is that the remote desktop built into the system dosent enable remote access to the system intill i have looged in on the system? What are my options? or is their a way to boot remote desktop with the system?
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Nov 9, 2009
I had installed CentOs 5.3 on a Virtual Box machine (v. 3.0.10) and then I needed more free space to upgrade to CentOS 5.4 on partition /. I wanted to substract some space from /home partition in order to add some more free space to /. Thus I used a gparted live cd (v. 0.4.8-1) that it is a debian live cd. I resized the partition as I wished and every operations went successfully, but when I tried to reboot the only message that I see its 'GRUB' and nothing else happen. If I start again with the gparted live cd, everything seens to be fine as the partitions are there but I can't boot the system.
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Jul 18, 2009
I did a yum update to install quite a few updates to my Centos 5.3 x86_64 system. Updates included kernel and xen which required a reboot. It must be a month or so since I last updated. The updates seemed to go fine - but when the machine restarts it goes through the bios screens which seem to detect all the hard drives etc - but then the word "Grub" appears at the bottom of the bios screen - and the system hangs. It doesn't appear to respond to keyboard input. The system is using linux raid in case that is relevant.
I am able to boot a centos5.2 live CD and look at the Logical volumes - and all appears in order to my untrained eye. I have also mounted the /dev/mdo as /tmp/bootx (boot volume) and had a quick look at /tmp/bootx/grub/grub.conf and /tmp/bootx/grub/device.map and again - I can't spot any obvious problem. I note that before the updates - my default boot was "1" and now it is "0" though this appears reasonable because the xen and non-xen images seem to be listed in the opposite order to earlier updates. I have set it to boot non-xen by default - and this has always worked in the past.
I realise that the recent updates may be a coincidence - and whatever is wrong may have occurred earlier. I cannot think of anything I have done which could have broken grub though. I can probably restore my boot volume to the state it was before the updates. I should have a backup from this morning - as luck would have it. Is this a safe thing to do - or do I need to restore both boot and root to keep them consistent. I would prefer not to restore the root system unless I have to - as this would cause some data loss. However I need advice as to whether yum and other things will get confused if the boot volume is restored in isolation.
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Aug 10, 2010
I just installed CentOS 5.5 on my machine and the installation appeared to complete successfully (it said it was successful). When I rebooted and tried to get into my new CentOS, my system completely locked up during the startup. According to the progress bar, it got stuck on the first-run configuration. I have not yet been able to boot into the OS. I am attempting to create a dual-boot system. I already have Windows XP installed on a separate hard drive. The GRUB loader works fine and I can choose either OS to boot into, it's just the CentOS won't finish booting. Windows is completely unaffected.Since I'm assuming the problem stems from the installation, I'll list the steps I followed.
1. Obtained the .iso image from a network drive at work (I am installing on my work machine). The image is dated May 17, 2010.
2. Burned the image to a DVD.
3. Booted from the DVD and chose to install using the graphical interface.
4. Checked the DVD. The installer verified that CentOS could be installed from it.
5. Picked my installation and keyboard languages.
6. Chose to create a custom layout for my partitions. On my second hard drive, I created the following partitions:
- Swap (8196MB, twice my system RAM)
- ext3 (100MB, mounted to /boot)
- ext3 (remaining drive space, mounted to /)
7. Picked my timezone (did not use UTC since Windows will handle setting the system time)
8. Set my root password. You don't get to know ;)
9. Did not choose to install any additional packages besides the KDE desktop. I wasn't sure what I'd need so I checked the option to customize later.
10. The installation than started and 15 minutes later, it told me it had succeeded and to remove the DVD and reboot.
11. Upon rebooting, I let the GRUB loader boot into CentOS (side note, I'd prefer if Windows was the default OS but that's something I should be able to Google on my own).
12. The startup looks like it's going fine until it gets to the first-run configuration, at which point the entire system locks up and requires a hard reboot. I've tried several times since and it always locks up at the same point.
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