i installed squid 2.6 proxy server on centos 5.4,squid performs services very nice but after reboot the system.it shows a just black screen written with " GRUB_ " and held the boot process,tell me what should i do ?
View 1 RepliesI downloaded the CentOS-5.6-i386-LiveCD.iso and burn it on a CD, as usual. When booting, it does the automatic boot but then crashes, with "Buffer I/O error on device sr0, logical block 354800 (and more)". I am having the same problem with making a boot-able USB. I am not exactly sure what is wrong, I see two folders on the cd LiveOS and isolinux. I'm not sure if it is suppose to be like this, if the burning process when ok. I'm trying to set up a desktop on a pc (with AMD Sempron processor). This is very strange, I ruled out that it couldn't have been my computer (because my Fedora boot disk booted fine), my cd (because it is new and an entirely different brand), or the .iso (because I tested it in VirtualBox, which it booted perfectly).
Files in LiveOS folder:
livecd-iso-to-disk
osmin.img
squashfs.img
TRANS.TBL
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i installed squid 2.6 proxy server on centos 5.4,squid performs services very nice but after reboot the system.it shows a just black screen written with " GRUB_ " and held the boot process,tell me what should i do ?
View 1 Replies View RelatedI've installed CentOS lot's of times, but I've never had an issue like this before. It's just a black screen, and all I see is a mouse. I see some drive activity, but I gave it a good hour and it's just sitting there. Not sure what to do here or what's causing the issue. There were no problems during the install. I'm trying to install it on an old Dell PowerEdge 1900 server. Edit: If I go to the console, top is showing X and gdm taking 10+% of the CPU and there's a high load. Which is odd because this is a fresh install..
View 3 Replies View RelatedI'm trying to install a dual booting machine with OpenSUSE v11.1 32bit and CentOS v5.2 64bit. I installed OpenSUSE first and allowed it to install and configure grub in the MBR and after that I wanted to proceed with CentOS v5.2. The installation went fine with two notable exceptions:- when I had to configure grub installation parameters, CentOS offered me only 2 solutions: either install it on the MBR of the first hard disk or not installing it at all. Other distributions are more flexible allowing you to install it in the boot sector of the root partition for example. Because I didn't want to ruin the existent grub onfiguration, I reluctantly accepted not to install it for CentOS assuming that I could manually configure the entry later in grub's menu.lst file.
- when I was presented with the options for software components installation, I've clicked on virtualization category/function because I intend to use the machine as a VMware host. There was no guidance on screen at that point and I blindly assumed that by choosing the virtualization function I would get necessary tools and drivers that will help me further on. It seems that this was a wrong move as you can see it below.
After completing the installation, I tried to search for a template or guiding on how the menu entry in menu.lst should look like but the grub directory was empty, not surprisingly because I've told CentOS earlier not to install it. Using the files in the /boot directory from the CentOS installation I tried to improvise a menu entry but it's not working. The boot stops with famous Error 13: Invalid or unsupported executable format. Using the file command to check what kind of files I'm trying to load as kernels I'm getting :
marte:~ # file /mnt/vmlinuz-2.6.18-92.el5xen
/mnt/vmlinuz-2.6.18-92.el5xen: gzip compressed data, from Unix, last modified: Tue Jun 10 19:20:51 2008, max compression
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I have a laptop that came with Windows Vista (64-bit) installed. I created a new partition and installed XP (also 64-bit) alongside it.Last night I shrunk my XP partition and created another new partition and installed Linux (CentOS 64-bit) on it. I made an error in judgment and didn't allocate enough space, so I need about 10 more gigs for the Linux partition. It boots up and runs, but I need about 10 more gigs of storage for the files I want to keep on the partition (and yes, they have to be on the partition, I definitely need to know how to do this, not a workaround)I went into Vista and shrunk the XP partition by 10 gigs, so now I have 10 gigs of free, non-partitioned space.
As it stands, when I start up the computer I get the GRUB boot loader. I can boot my Linux install or choose "Other" and be taken to the Vista boot loader. From there I can choose XP or Vista to boot.So, my question is... what is the best way to append the 10 gigs of free space to the Linux partition? Is this something I should do inside of Linux? I have the option to do it in Vista, but the partition shows up as "healthy" but without a file system type.I just don't want to screw up the boot loader, partitions or anything else.This isn't my area of expertise, so if anyone could give me a good suggestion or solid answer
Since RHEL is similar to CentOS posting it here.
Upon booting from DVD, i get the below error: "CentOS CD Not found in any of the media drives. Please insert CentOS CD and press OK."
I have IDE Sony DVD RW AW-G170.
BIOS Setting:
Downloaded the CentOS-5.4-i386-bin-DVD image from centos.org from DVD.torrent using bittorrent file.
When booting from the DVD, it gives me the boot prompt:
Upon pressing enter, the log messages of the boot detect the media drive as: hdc: Sony DVD RW AW-G170 IDE ATAPI CD.
The below steps occur:
1) Select the keyboard type: selected us
2) Select the Language : selected us
3) Select the image:
- Local CDROM
- Hard Drive
- NFS Image
...
...
selected Local CDROM
Then the above error "CentOS CD Not found in any of the media drives. Please insert CentOS CD and press OK."
The booting steps does not ask the for media check step.
The below methods have been tried to solve the problem:
- Burnt the image in another 2 DVDs but the same error "CentOS CD Not found in any of the media drives. Please insert CentOS CD and press OK."
- Upon burning the DVD image , selected the DVD read speed: 8x. Upon burning the DVD selected 18x for burning. and then tried to boot with that DVD
- At the boot prompt entered : linux hdc=cdrom replaced hdc=hdb but the error remains.
I've done some installations and configuration of linux systems for different needs and I've never had such a problem:
* The system is Supermicro X6DVL-G mainboard with two Nocona Xeons @ 2,8 GHz, 2 GB DDR333 RAM, 2x160GB Seagate ST3160827AS SATA HDD, ATi RAGE 128 VGA and an external LG USB DVD drive.
* The role of this machine will be Joomla Web/Mail/FTP server for my company's website
I've tried FreeBSD, PC-BSD and now CentOS 5.3. The BSD based OSes installed and ran with no problem but I had trouble configuring them and I decided to move to something little more familiar. However the BSDs didn't detect the integrated Promise RAID controller but CentOS had no problem with that. After some fight with the initial setup I've managed to made it recognizing the external DVD and install the OS. I'm using the whole stripe for the OS, leaving the linux to determine and create the partitions. The installation went smoothly with no errors, but after restart I get the POST messages and then... NOTHING! No error, no panic, nothing, just a blinking cursor. The first thought, confirmed later by several posts I've read, it's the integrated RAID controller making the issue.
Well, I removed the stripe, disabled the controller from the BIOS and installed again, this time with the two separate disks - the sda is bootable with swap and ext3 and sdb is spare with ext3. THE SAME... Third time - only sda is configured for istallation - again NOTHING. Fourth time - sda is configured for installation and No Bootloader option is selected - SAME.
I am in a situation to boot fedora 15 live cd in to command line mode, not graphical mode, for some testing purpose. how to change argument during booting mode
View 4 Replies View RelatedI am using a linux kernel 2.6.36 using mips architecture. I have succesfully booted the machine through Flash memory, but it is not booting through nfs. It is getting stuck at the stage where the image starts loading. In short the vmlinux.img file is being copied properly to nfsroot but the image is not loading.
View 5 Replies View RelatedSince I installed Centos in Text mode it automatically boots into terminal instead of X. I merely have to type "startx' and the gui loads without a problem. Is there a simple way to automate this so that I boot directly into the gui?
(BTW, I checked many of the posts about the GUI but most dealt with startx not working or with modifying VNC Server - that wiki seems like overkill in my case.)
I'm setting up a backup server using Centos 5.3 and an Adaptec 5805 raid card and discovered that I can't use a raid setup that is over 2TB in size as the boot drive. What I eventually did was set up 2 raids on the same set of 4 drives so that I have a 200Gb 'drive' for booting and a 2.6TB 'Drive' for data. I want to keep the OS in the raid setting so I have some protection instead of having a dedicated stand alone drive for the OS. This will be for a company wide backup server and I want to minimize the possibility of drive failure for the OS as well as the Data.
I was able to install and reboot the system and everything seemed to be working but after some working on it a bit I did a reboot and wound up with a non-booting system. I can boot to the rescue mode with the install dvd and mount the original system and I even tried to reinstall the grub setup per instructions I found on the net but still I get a system that hangs up after it asks if I want to boot from the CD. If I take out the CDROM option from the boot lineup in the bios I stop at the same place minus the boot cd prompt.
I'm guessing it is something to do with one of the raid drives being over 2TB but I'm booting from a 200gb sized raid so I'm really at a loss for what to do next??
Is what I've described the correct way to handle booting up with a large raid or is there another way to reconfigure the drives as one big 2.8TB raid and use something other than grub to boot to it?
1st referring to: [URL]. I have no paid support channel at Redhat as I am using an evaluation copy. I use a pretty fresh installed RHEL 5.4, which should be very similar to CentOS. After the basic installation I installed xen and xen-kernel via yum with no errors. I can manually select the xen-kernel at boot time. But after booting the normal kernel shows up.
[root@noname boot]# uname -r
2.6.18-164.11.1.el5
My /boot/grub/menu.lst looks like:
default=1
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Red Hat Enterprise Linux Server (2.6.18-164.11.1.el5xen)
root (hd0,0)
kernel /xen.gz-2.6.18-164.11.1.el5
module /vmlinuz-2.6.18-164.11.1.el5xen ro root=/dev/VolGroup01/LogVol00 rhgb quiet
module /initrd-2.6.18-164.11.1.el5xen.img
title Red Hat Enterprise Linux Server (2.6.18-164.11.1.el5)
root (hd0,0)
kernel /vmlinuz-2.6.18-164.11.1.el5 ro root=/dev/VolGroup01/LogVol00 rhgb quiet
initrd /initrd-2.6.18-164.11.1.el5.img
title Red Hat Enterprise Linux Server (2.6.18-164.el5)
root (hd0,0)
kernel /vmlinuz-2.6.18-164.el5 ro root=/dev/VolGroup01/LogVol00 rhgb quiet
initrd /initrd-2.6.18-164.el5.img
I can't see anything wrong and I did not change/try anything. My machine has a intel core 2 quad q6600 cpu, wihich should be capable of virtualization. It's not a problem of default=1 or default=0, because I selected the xen-kernel manually in the grub menu. Btw: I changed the menu.lst with default=0. Then the system is repeatedly booting; last visible message 'starting udev'.
I have a multiboot system chainloaded by SUSE grub. I have installed CENTOS on an extended partition thrice with various grub install options available in install media. I am unable to chainload CentOS with SUSE grub or PCLinuxOS grub.
Here is my menu.lst -
# Modified by YaST2. Last modification on Mon Sep 20 05:43:13 SGT 2010
# THIS FILE WILL BE PARTIALLY OVERWRITTEN by perl-Bootloader
# Configure custom boot parameters for updated kernels in /etc/sysconfig/bootloader
default 0
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How do I get CentOS to boot from openSUSE 11.2-11.3 grub.
I installed Apache, and it works fine. However, when I rebooted my CentOS, httpd did not start automatically. What do I need to do to ensure it starts when the system boots?
View 2 Replies View RelatedServer with Centos 5.6 stop boot up for about 90 minutes. He stop:
SELinux: Disabled at runtime.
SELinux: Unregistering netfilter hooks
audit(1307803697.466:2): selinux=0 auid=4294967295 ses=4294967295
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i rebooted my centOS 5.3 server an I got the the errors below. I need to recover the information its very critical.
Loading ahci .ko module
Loading dm-mem-cache .ko module
Device-mapper: uevent: version 1.0.3
Device-mapper: ioct1: 4.11.5-ioct1 (2007-12-12) initialized: dm-devel@redhat.com
Loading dm-log. Ko module
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I am attempting to set up an IBM Intellistation Z Pro to optionally boot from many OS versions. One of these is Windows XP. Windows XP is currently installed on a RAID 1 device consisting of a pair of 1 GB WD drives. These are SATA drives. The HBA I'm using is a SYBA SATA II card that uses Silicon Image's SIL3124-2 chip. The card has a BIOS and I've set up two 60 GB mirrors for Windows. I boot XP fine from this setup and things run good.
I've downloaded the CentOS 5.2 images and am able to start the installation process. I'm baffled on where to install the OS software on the RAID device. The installation process shows the two 1GB drives as separate drives and there is no acknowledgment of the 60 GB partition I've already created on them for Windows XP. I expected to see only the one logical RAID device and 60 GB of it in use for a NTFS partition. Reluctant to proceed further, I bailed on the install and am asking for advice on how to proceed.
The big question is
1) How can I install CentOS 5.2 on the RAID drive to coexist with a Windows XP installation? My desire is to boot either from this drive.
other questions related to this are:
2) Why does the CentOS partitioning software used for the install not display the logical RAID drive set up through BIOS (I'm assuming that this means it was set up apart from any Windows drivers etc.)? Only the two physical drives are displayed and there is no mention of any partitions in use.
how do I create a rule which makes the startup of an application to start CentOS?
View 1 Replies View RelatedComing from Windows. First installed Fedora 11 but lost network and haven't been able to restore network connectivity. Attempted to re-install but during the boot process it complained about creating a soft link to /dev/root (not sure what this is about). So attempted to install CentOS by booting from the LiveCD. Much nicer interface but have no install icon and there doesn't appear to be installation guide. How I can install CentOS?
View 4 Replies View RelatedSo my company just bought 2 mtbs with G31 + ICH7R chipset, both same model. Also they have 4GB Ram each with 2,5 - 250GB HDD Core 2 Duo E7500 CPU The first one went fine through the installation and it' s up and running while the other one, no matter if I use linux text linux text noprobe linux text dd noprobe irqpoll either in 5.3 or 5.4 x86 or 64
It starts booting and video just goes off, no error messages at all. Tried to install using the other motherboard, went fine, with hdd installed and working, it does the same thing, shows the Centos menu loading, start loading and video goes off.
Ever since the upgrade to CentOS 5.4 the system boots extremely slow and x-windows is virtually unusable unless the machine is connected to a network. It hangs at netstat, cups, httpd during the boot process. I utilize the operating system to create Asterisk servers and sometimes they are not connected to a network ever.
View 1 Replies View RelatedIn my environment all the servers are having more than 5+ cpu's.Please help me to find out from which CPU the OS is booting
View 5 Replies View RelatedAfter a reboot, my PC just hang. It says "insmod : error inserting '/lib/raid456.ko : -1 File exists ..." then followed by a kernel panic. I have tried to boot using rescue mode but it couldn't find any Linux partition, thus no /mnt/sysimage was mounted. It left me at a shell and I'm stuck there.
View 3 Replies View RelatedI'm a visual effects artist and although many VFX post production houses use linux, I've always used windows because of the programs. At this point, I've migrated to different programs which are also available on linux. The only set of programs I won't have, would be the Adobe Suite. So, I decided to finally start using linux again. I used it back when I was a kid for a few years, but just to have it really. We mainly use macs at work, but I'm switching to linux now.
Since I mainly use Autodesk Maya, the first choice would've been RHEL. Which is why I'm here now, you can guess.
I've downloaded the .iso of CentOS 5.5 and checked it against the hashes and it came out fine. I burned it to a DVD and booted my main computer (I have 3 I plan on installing it onto) and tested the media, came back fine.
I have two HDs, one 1.5TB SATA and one 150GB SATA. The 1.5TB is the C: drive of windows, and I've shrunk it to allow 80GB for linux.
So that is sda. sda1 is the windows partition and I make sda2 ext3 out of the empty space by choosing the custom partition scheme. It installs fine.
However, booting up the computer boots straight to windows. No GRUB.
I've reinstalled many times now, changing the GRUB from sda to sda1 to sda2. Nothing.
[url]
I've adapted that guide to CentOS and tried that, but whenever I select the CentOS option during bootup, the computer instantly restarts itself.
I've tried reinstalling the GRUB via a Live CD like many googled sites say to, but I always get errors.
If I find the /boot/grub/stage1, it says it can't be found.
If I try to setup GRUB, it says /boot/grub/stage1 is unreadable
So, I download the Ubuntu CD and install that. I use the guide previously posted to do the same thing, by installing GRUB onto sda2 where Ubuntu is.
So I pick that option on startup and it brings me to Ubuntu's GRUB menu. It all works fine. CentOS doesn't though.
Ubuntu is using GRUB2, so it has a grub.cfg file. Inside the file near the end, it lists Ubuntu as (hd0,2) and windows as (hd0,1).
That shouldn't be right? What's (hd0,0) then?
The CentOS grub.conf file lists CentOS as (hd0,1) and windows as (hd0,0). That should be correct. But I change it anyway to (hd0,2) and (hd0,1) and it still doesn't work.
I've found a workaround, but the workaround doesn't make any sense to me.I suspect I am running into a bug of some sort.I've tried to search for a solution, but the search terms are too broad and I can't seem to find anything useful.I have a CentOS 5.5 system that I've set up Virtualization on (presumably Xen, right?). I have a RHEL 5.4 Guest OS using "Full Virtualization" method.When I was installing the RHEL guest, the entire server rebooted just as the RHEL guest was booting for the first time.Thinking that odd, but coincidental, I just let the Host server reboot and then started up the RHEL Guest again.The reboot happened again and in the same spot! When I say the server rebooted, I mean black screen...pause...bios screen.I finally managed to get the RHEL Guest booted by removing the DVD that I had in the DVD drive and disconnecting it from the Guest OS in VMM. Very, very odd. I can reproduce this behavior by simply booting a Guest OS with a DVD in the drive (so far I've tried only RHEL guests).
The reboot happens at the same place in the Guest boot process. It's when RHEL starts the UDEV script. Actually, a few seconds after the RHEL system displays "Starting udev" message. I've looked in both the CentOS and RHEL messages log and found nothing.It's not a huge deal at this moment, but I will be sending these servers out into the field and I can't control what the end users of these systems put in the DVD drives.
Recently installed Centos 5.6 in order to install Plesk on. Not familiar with Linux partitioning so left the default values at install with a few GB of unpartitioned space left free. Followed the instructions on the Plesk installation manual for adding a seperate partition for /tmp - [url]
Then later on I couldn't get in to the server locally via the GUI (which was already switched on), it just had a black screen so I powered the machine off. It then wouldn't boot back up. When it got to e2fsck I got a [Failed]. I also got the same message as in this thread.
I'm now at a remote location. When logging in as root and trying to run fsck to find and fix any disk problems a remote engineer has found that it won't unmount the partitions so I can't really run fsck on it. He's forced the machine to boot for me and I have SSH access but if I reboot the machine I'm quite sure I won't be able to get in again from here.
Is there something wrong with my fstab maybe?
I "inherited" a cluster of 2 systems with XenCluster, based on CentOS 5.5. About five weeks ago I ran the (long overdue) yum update, which crashed in the middle of updating on both nodes, so I had to reinstall all those packages by hand and had to re-enable their startup. So both systems are already in the not-ideal state.
One system rebooted itself during my absence and now won't boot anymore. It seems to boil down to clustered lvm not being activated in the initrd and therefore no VolGroup00 available, which contains the root. The other volume group has good reasons to be clustered but the root does not need to be. But I can't fix it from a rescue CD, every time the error comes up that the volume group is clustered.The exact error display at boot is at
http://people.cs.uu.nl/koos/screen-20100913140414.png
what do I do to either fix the startup to ignore VolGroup00 being clustered OR change the status of VolGroup00 to non-clustered?I notice the other system has this too so my best guess is that I'll have the same problem in a bigger way when this system reboots too. Hoping for no power failures...Relevant versions of stuff:
centos 5.5
kernel 2.6.18-194.11.1.el5xen
mkinitrd-5.1.19.6-61.el5_5.2
lvm2-2.02.56-8.el5_5.6
lvm2-cluster-2.02.56-7.el5_5.4
(from the still running system)
i decided to install ubuntu in my PC,i downloaded the .ISO image and i installed it in my USB. After trying it and all that i observed that i really liked it and i decided to formally install it to my computer in the hard drive. When i reached the partition thing,i selected to dual boot with Vista and select between each them in every startup,when i clicked FORWARD it gave me an error which i did not read(because,again im a noob) so i clicked cancel.
Today i wanted to go through the process again and now really install it,so again i went to the time zone part and i clicked forward but then,instead of taking me straight to the partition phase,it appeard a window saying "The installer has detected that the following disks have mounted partitions: /dev/sda ...." I clicked yes,to unmount this partitions so it took me to the partition thing,once there i selected the option to install Ubuntu with Vista and select between them i neach startup,then i clicked forward and went to the username/computer name process,once i finished i continued to the next part,the installation,but i selected to import all of my WIndows VIsta default user data,after that i clicked forward and went to the installation process,i went down stairs to eat soemthing while it finishes,i came back and it was finished,it asked me to reboot so i clicked in Restart Now.
When it tried to boot,appeared an error saying: Error: no such devide found: #################### Grub load(or something like that) grub rescue: and it was a command line,since there i havent been able to boot into vista or Ubuntu,im really scared because is the first thing related to OS installing ive done,so i booted my USB and ran the trial and right now im trying to find out what to do from that trial version.
I just went to the INSTALL UBUNTU 10.04 LTS application under the System>Administration Menu and found out that in the partition phase the Install and allow to select between both systems in eahc startup option,i dont know what to do,i foudn out that my HD has still all its data(MUsic/Videos/Folders/Programs/ect.)its just that i cannot boot from it. Also in GParted it appears as /dev/sda1/ and a warning icon besides it,also when i go into information, thers this warning there [URL]
I have been using CentOS 5. for around 3 months. It was all fine and was having a pleasant experience using CentOS. Today when i turned on my computer and booted CentOS i am having the below error: Grub comes up, allows me to select CentOS 5.4 kernel image. and displays RedHat Nash version: and then the below error occurs:
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