CentOS 5 Hardware :: How To Switch From AMD To Intel Without Reinstalling
Apr 9, 2009
I am having a hardware problem with my samba server. It is on an Tyan AMD motherboard, (Tyan S2469), and it appears the board has gone bad. Is it possible to transfer the drives onto my Tyan S2735 mother board without a complete reinstall? I really need to save the data on the system.
I am having a hardware problem with my samba server. It is on an Tyan AMD motherboard, (Tyan S2469), and it appears the board has gone bad. Is it possible to transfer the drives onto my Tyan S2735 mother board without a complete reinstall?
i just installed fedora 9, but realized that i had installed the x86 version (it came on a dvd in linux format magazine). i didn't know that the "only-3gb-of-ram-for-x86" applied to linux, as my previous machines i used it on had under 3gb anyway. so anyway, is there a way to switch to the x86_64 version without downloading and reinstalling it? kinda like ubuntu's distro upgrade (not sure if other distros have it?)
One of our F14 machines was originally set-up with the i386 Kernel. I found out it had a kernel crash and the person tried to fix it by reinstalling the kernel, unfortunately they installed i686. Now some of our software that was setup to work with i386 is not cooperating. Is there a way to switch from the i686 kernel to i386 without reinstalling the system?
I had Windows XP Pro 32 bit and CentOS 5.4 installed on my Dell M6400 laptop and life was wonderful. Until I had to reinstall Windows. In the process, I reformated the C: partition of the drive where the Windows operating system was installed. I was careful NOT to reformat anything else. Now I cannot boot CentOS. The drive that has both the Windows and CentOS still shows the same partitions as were there before I reinstalled Windows, namely:
NTFS (C:) 171.82 GB /boot 102 MB (F:) 60.96 GB
is where my CentOS partition has all of my linux data and apps. I assume /boot should be the boot partition for CentOS I use Acronis OS Selector to show the partitions to boot. Now CentOS doesn't show as an option even if I go through the process of trying to detect a CentOS boot partition using OS Selector. I have researched this in the forums but have not found anything that was of help. There was a thread from someone who had trouble booting Ubuntu on a system with Windows Vista and CentOS but I did not see anything there that looked like it would help in my situation.
i've been trying to load F15 on a HP DV4 (switchable ati/intel graphics, no hardware switch). the system boots from dvd fine, but gets stuck right after the starting anaconda message with a non blinking cursor on black screen and nothing happens after that.
Installed Ubuntu 10.10 on fresh HP dm4-1050so laptop and encountered problems, this is one of them. Noticed that ATI card is heating heavely with default installation and I would like disable it and switch to use Intel's GMA. Also tested ATI proprietary fglrx driver through Administration->Additional Drivers, after booting got empty screen so I switched back. Afterwards read from documentation that 5450 is not supported, so no wonder. So what is the simplest way of disabling ATI and using only Intel's gma? Here's what I got with lspci -v:
Code: 00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device 1469 Flags: bus master, fast devsel, latency 0, IRQ 45 Memory at c0000000 (64-bit, non-prefetchable) [size=4M]
I am using CentOS 5.2 with GRUB booting a software RAID configuration. The first disk is md0 and is mirrored across sda1 and sdb1.I manually re-installed grub using grub-install and the machine will no longer boot off of the HD. The grub menu comes up, I can select my kernel the machine then jumps to loading the initrd and hangs.It will go no further. I have a live DVD that can boot from the HD. If I use that to first boot from the DVD, then specifiy the HD, it shows the same grub menu and then the machine boots fine w/o the initrd hang.I have tried re-installing grub but not been able to get the machine to work again w/o the DVD.
I've installed from the CD the Centos version 5.5. When I try to connect to Internet I can't because I received some errors. I've the Intel Corporation 82801CAM (ICH3) PRO/100 VE (LOM) Ethernet Controller also a wireless slot (I've the wireless card DWL-G650+) When I turn on the pc and I go to "Ethernet Device", I see set: peth0 (Intel Corporation 82801CAM (ICH3) PRO/100 VE (LOM) ETHERNET CONTROLLER) and also set "Bind to MAC address": fe:ff:ff:ff:ff:ff I've set manually the IP address (I'm under router). Status is "Active" but can't go on the Net. When I change to "eth0 (Intel EtherExpress/100 driver)...sometimes become "Active" an other times said that the MAC address is different or to check the cable because can't find the IP. What can I do?
I have an intel DP35DP motherboard - ICH9 southbridge - set to AHCI mode. Working fine under 5.2. Yesterday I updated to centos 5.3, and got kernel 2.6.18-128.1.16 and now it can't boot. It hangs trying to read sata1 with DRDY errors and exceptions.So then I installed 5.3 from a DVD onto a new drive, and got kernel 2.6.18-128. This worked, most of the time, but occasionally gave me this error. I then updated my BIOS, and the error went away.Then I updated this new working drive to the latest kernel (yum update again) and got kernel 2.6.18-128.1.16, and now it wont boot again, with the same message.
I've a Centos 5.1 server on S5000vsa Intel board with 6 bay HD in raid 1 mode (2 HD), and working fine until I've decide to make a yum update. Today the Centos is 5.4 but seems necesssary to upgrade the megasr driver for the raid function (i.e. , is not possible to contact the raid firmware trought Web Console 2). I've download the last megasr driver from Intel and I follow the instruction to upgrade the driver with s.o. installed, but when I start the server and choose via grub the new img boot file, the display show :
megasr.ko invalid module format -1 and stop. The linux version is the same in the machine (uname -a) and from the driver (2.6.18-164.9.1.el5). Another question : in Intel instruction spoken about megasr.o , but on img file I found a megasr.ko . I think instructions referre to old linux 2.4
I installed centos 5.1 in my system, it installed perfectly, but when I am trying to install centos 5.2 then it is not let me install.
My system has 220 SATA HardDisk Intel Core 2 Duo 4 GB RAM Intel Desktop Board DG41TY when I try to install centos 5.2, it show me menu bar After hit enter key to install centos 5.2, it show me loading usb drive and then showing some strange font. System is hang after this Can you please tell how I install centos 5.2
i want to change my server to a intel d510mo withoutchanging the installation.The old nstallation runs on a centos 5.4 asus amd board witha sata raid, sata-sil adapter in no raid modus.and that is the problem.i boot the centos on the intel board, and only the sata-sil module is loaded, so noata drive is found.How can i change this? udev? i disabled the scsi-hostadapter in modprobe.conf, but no
I am running an old kernel for my XEN VPS CENTOS 5.5 x86_64 - 2.6.18-164.el5xenI did a 'yum update kernel' but when I rebooted still the same. I have downloaded the version 'kernel-2.6.18-194.32.1.el5' I cannot find grub.conf in both etc and boot, yes grub is installed via yum.
Assume I installed originally CentOS Desktop with IP receiving from DHCP server.Later I decided to assign a fixed IP to the local CentOS installation.How do I switch (permanently) the dynamic DHCP IP assignment to a fixed IP?
im a having a problem whit the terminal on my CentOS 5.3.After i installed the kernel-xen and activate it at:/boot/grub/grub.conf.I tried to start a terminal from my root gnome sesion and it shows this error:There was an error creating the child process for this terminal.I know swithcing the kernel made the problem because when i use the old kernel the terminal works fine.and even when i tried to connect to my Centos server via ssh it shows an error after asking for password:Server refused to allocate pty.
I have router based on CentOS system with DHCP server. In one eth I have fiber converter attached in second one I have Cisco Catalyst switch connected. From the switch rest of ports are used to provide internet traffic to rest of network. I wanted to divide each segment of network (based on switch ports) that they don't see each other (it'll be good for me if someone will connect his wireless router to the network not to WAN by LAN port and start be a second DHCP server). So my network configuration:
DHCP with range 10.0.0.1/8 network
1 - CentOS DHCP 2 - second server
Parts of networks I've assigned IPs 10.network_part.subnet_part.client_ip so I have addresses for clients: 10.1.1.2/8, 10.2.1.3/8, 10.3.0.4/8, etc ...
I've decided to give each port it's own VLAN like below:
And after doing that whole network stopped working. I think that cisco part of configuration is OK (at least customer ports, I don't know if there is any additional info needed for trunk port). On CentOS router I didn't setup anything regarding VLANs ...
I have built a Centos 5.3 server for a friend of mine that is being used as a NAS server. The server has 4 1TB drives in a RAID 5 configuration and a dedicated non raid system drive for the OS. My friend isnt very Linux literate so I need this bow to be relatively simple. I have worked most of it out but have a question with regards to remote reboot.
I need to be able to shut this device down through the power switch without human intervention (at the moment when the power switch is pushed the server asks to confirm shutdown) the server wont have a Monitor connected so this isn't practical. Is it possible to use the power switch to do an clean, immediate shutdown?
The other option is shutdown through a web page is this something that has been done before? I know he can do it through terminal by issuing a shutdown now command but as I said this guy wants something simple. I don't really want to explain everytime he needs to shut the Server down how to do it if he can just do it via a website or even with the power button.
I'm running a Counter Strike 1.6 Game server on my centos 5 VPS. I can get it to run by simply switching to the directory, then doing: ./hltv Now, when I do that, it obviously closes when I exit Shell. So I do the following and it gives me errors then. screen -A -m -d -S hltv ./hltv My question is, do I need all of those commands after screen? I just simply want it to not close once I exit Shell.
I followed the instructions on this page ([URL]) in order to secure my sshd and prevent anyone form accessing the server directly as root. Therefore I changed the "PermitRootLogin yes" to "PermitRootLogin no" and restarted sshd. After that root access was denied directly but for some reason I am unable to switch to root from any of the normal user accounts with "su -" because I keep getting the "Incorrect password" errors. I am sure that the password is correct but for some, to me unclear, reasons I am unable to access the root account over SSH from a normal user account. I also noticed that after that I lost the ability to access the server as root over SFTP. why I am unable to generally use the root account after doing the named changes to sshd_config/ I am running CentOS 5.4 with the newest update.
I installed the CentOS v5.4 on a virtual machine vmware server v1.0. I put the the vmware ethernet on bridged mode and now I have an ip address, subnet mask and dns from my dhcp server from the the office where I am. I edit the file /etc/sysconfig/network and I put there the gateway ip. Now is okay but not at my home where I have another gateway ip. a script who switch between my gateways ?
OS: Centos 5.4 VNC Viewer Free Edition 4.1.2 for X
Switching between two instances of VNC viewer in full-screen mode takes three key presses and two mouse clicks. How can the viewer be configured to pass a special key combination to the host operating system instead of the remote OS, so it's possible to switch between full-screen viewers in one key press?
e.g. With the default configuration, if I put the viewers in adjascent workspaces, then the sequence to switch is: F8 MouseClick Ctrl+Alt+Left F8 MouseClick If the key combination Ctrl+Alt+Left was passed to the host then it would be possible to switch workspaces (and therefore viewers) in one key press. When working on multiple remote machines, both physical and virtual, it's often necessary to switch between them frequently. I must switch over 100 times some days. Simplifying the key sequence would be both quicker and more intuitive.
I had something I think if very odd happen to one of my computers at work today, it appears to have spontaneously switched from having a static address set to getting its address by dhcp.this is a small office with a mix of mostly linux servers and desktops with a few stand alone windows computers, mostly notebooks. Most of the desktop computers get their address by dhcp, they all have NIS /NFS for remote mounted home directories (interchangeable desktops so anyone can log in at any desk). The particular desktop computer in question here has a shared printer on its parallel port, so has a static IP. Yesterday a UPS in the server rack died, after pulling it and plugging things back in and restarting the servers, it was easiest just to reboot all the desktops, everything came up ok including the desktop in question, and the printer did work.
Today I pulled the oversized UPS from this desktop to replace the dead one, and put a more appropriately sized one in its place, shut the servers down again, rebooted, etc,About an hour later someone tells me the printer is not working on the desktop, and after a lot of searching I find this desktop has the wrong IP address, I ran system-config-network and it showed the address was set to dhcp, I changed this back to the correct static IP and things seem to be working ok now.
i try to install centos on server with MB SuperMicro(X7DCL-i) [URL] But centos don't see my hard drives. In any mode(raid intel, raid adaptec, without raid), it's always tell me No driver found. Unable to find any devices of the type needed fot this instalation type....
This Motherboard have 2 type of raid. Intel ICH9R raid or Adaptec embedded raid
I download driver ICH9 RAID/AHCI driver (Provided by Adaptec) for Redhat Enterprise Linux 5 (32 Bit) from [URL], but after loading driver, it's do not see drives too.
I have a program that attaches to an interface. I can run two copies of the program on two systems (each running one instance), connect it to a switch, say 126.96.36.199 & 188.8.131.52. In this configuration two instances of the program can communicate and everything is fine.
Now, to reduce cost, it want to use only one system with two nics connected to the same switch, running two instances of the above program, each instance attached to two interfaces respectively on the system. I have the following settings:
eth1 Link encap:Ethernet HWaddr XXXXXXXXXXXXXXX inet addr:184.108.40.206 Bcast:220.127.116.11 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 eth2 Link encap:Ethernet HWaddr XXXXXXXXXXXXXXX inet addr:18.104.22.168 Bcast:22.214.171.124 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1