i installed xen kernel on centOs 5.6 Final 32 bit and i edit and configure grub.cfg but xen kernel won't boot and boot from default Kernel .
what do i do??
i paste grub.cfg here :
default=0
timeout=5
title CentOS (2.6.18-274.el5xen)
kernel /xen.gz-2.6.18-274.el5
module /vmlinuz-2.6.18-274.el5xen root=/dev/sda2 ro
[Code]....
I compiled my kernel, compiled scsi support into kernel, used the new kernel and initrd, the boot failed.Then ,i unzip my initrd, found that sd_mod.ko can't be insert, i added it manual, and reboot OK.so, why! in the kernel configure , the sd_mod.ko is set to <M> , but why it can't be found in initrd?
View 1 Replies View RelatedI built a home server (NAS/WWW/SSH/media server etc) and chose CentOS 5 as the OS (stability, easy of configuration).I was just about to start tuning the power consumption when I realised that the kernel CentOS uses is so "old" that it does not support the latest reduced power consumption enhancements that Linux has achieved in big strides in the recent past (we are probably still talking 6-12+ months ago e.g. tickless kernel)..
So my questions; 1) I know CentOS was maybe not meant for home servers (certainly its not its primary purpose), but if it is, any ideas of what kind of power consumption it takes (I know its relative) and if there are particular power consumptions that are worthwhile?
2) Do you recommend me compiling my own 2.6.21+ kernel from kernel.org or am I just likely to have compatibility issues (I really did not want to do that) or when is CentOS 5.4 supposed to have a newer 2.6.21+ version kernel?
Was it wrong of me in principle to choose CentOS for a home server when I am power conscious? (I don't have a low-power VIA processor either but a P4 so I am really just hoping to make do with software changes).
I applied the Kernel update that showed in the updater via the GUI.It now won't boot anymore.Memory for crash kernel (0x0 to 0x0) notwithin permissible range.WARNING calibrate_APIC_clock: the APIC timer calibration may be wrong.
View 2 Replies View RelatedI have centos 5.3 workin on mini itx atom 330. i have some problem with the network when i use Samba. when i move big files the network goes down. i wanna to install the new kernel on my centos to try to fix the network problem with the new drivers includes on the new kernel.
View 2 Replies View Relatedafter updating freshly installed CentOS 5.2 to 5.3, the new - updated kernel remains invisible to GRUB (at least in GRUB boot menu). I've tried reinstalling, adding the entry manually (although one entry for the new kernel already exists, and is default boot target), altering the old kernel entry to refer to the new kernel and initrd (since it is the only entry visible), and nothing worked. Also, the new boot entry added manually didn't show up on the boot menu either. After trying to edit the entry for the old kernel and initrd and boot it i got the following message:
Error 13: Invalid or unsupported executable format. I've searched and found:
13 : Invalid or unsupported executable format
This error is returned if the kernel image being loaded is not recognized as Multiboot or one of the supported native formats (Linux zImage or bzImage, FreeBSD, or NetBSD). The hardware I installed CentOS on is Dell Optiplex 755 with RAID 1 configured - using onboard controller (if this can be of any relevance).
I installed the PAE kernel package on a Compaq DL380 G3 with 6GB of RAM, CentOS 5.5, vanilla install.
Upon reboot, GRUB cannot boot any of the kernels. I get an invalid device string error. Poking around in GRUB, it detects root correctly at hd(0,0) Beyond that, it cannot even find /boot/grub/stage1. I got out of the bind by reinstalling the kernel that ships with the installer. I'd like to use the 6GB RAM if possible. I attempted to follow GRUB's documentation here: [URL] but there is no grub-mkimage in centos5.5.
Also, the 5.5 installer detects, but appears to have no way to mount usb flash drives. I used the installer disc 1 to get into rescue mode. From there, I inserted a usb flash drive. dmesg and lsusb show the device, but there's no device node and resultant messages when a flash drive is inserted. There is no usb-storage module when doing an lsmod from the installer. I don't have this issue in other distro installers.
I decided to try Linux recently. I downloaded CentOS-5.3-i386-bin-DVD.iso. Installation was successful but the OS reports Kernel Panic while booting. At first I can see messages:
Memory for crash kernel (0x0 to 0x0) notwithin permissible range
PCI: BIOS Bug: MCFG area at e0000000 is not E820-reserved
PCI: Not usin MMCONFIG
The OS continues to boot, but then shows kernel panic.
I tried to solve this problem during several days. I've installed the OS at least 10 times changing conditions. I tried x86-64 version, disabled PAE in BIOS, performed manual partitioning without LVM. The result is the same.
My PC has Intel Core 2 Duo E8400 CPU (no overclocking), 4GB RAM (DDR2-800), ATI 3470 GPU. Windows is working smoothly on it, I can encode video during several hours without problem. All fans are working, the system is not overheated. MemTest86 showed no errors.
I've installed CentOS on my laptop (Core 2 T5600 CPU, 2GB RAM, Intel G945 Video), it works nice, i like it very much.
For testing I've installed OpenSUSE 11.1 on the PC, everything is ok, I'm writing this message from it.
vmware virtual machine, the system is centos 5.4 want to upgrade the kernel 2.6.32. make menuconfig is based on the default. make; make modules_install; make install no problem, reboot the system to choose a new kernel, new kernel can not boot, the following is vastly map, right in the / boot directory, there is no 2.6.32 of the config files, do not know how the matter , in the compilation before I put / boot directory of the original system config files to the source directory cp The following is the contents of the screenshot
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I had a Centos 5.5 system working great...and then due to crazy curiosity, installed the kernel update. Did this through the graphical interface, uncheck all update other than kernel. It downloaded, installed fine..After reboot now all I get is GRUB_ and then nothing else! I waited 3-4 minutes and had to shut down system. Have been googling around but thought I will post it here as well..When I boot with Win7 and use Ext2fsd to check, the boot folder is empty. Not sure if this is because ext2fsd does not read boot folder or it got wiped out by the yum upgrade process.
View 9 Replies View RelatedI have recently run an update and now we are unable to boot the newer kernel. We get stuck as below;
Memory for crash kernel (0x0 to 0x0) notwithin permissible range
Red Hat nash version 5.1.19.6 starting
Unable to access resume device (/dev/VolGroup00/LogVol06)
[Code]...
The kernel version we were at was 2.6.18-194.el5 and the update move us to 2.6.18-194.17.1.el5. I've done some googleing but I'm unable to work out exactly what I need to do. I'm guessing the new kernal is missing a module?
During boot from CentOS5.4 DVD and after choose linux rescue mode, encounters with error:
Code: 8b 5e 04 83..... ........ 3d c0
EIP:[<c0417656>]__modify_IO_APIC_irq+0x40/0x62 SS:ESP 0068:df94eed4
<0> Kernel panic - not syncing : Fatal exception
If you select "support virtualization" during install, you get the xen kernel installed.
Some things do not work with this kernel (e.g. nVidia drivers). So my question is whether it is possible to install both kernels (xen and ordinary) and select between them with grub at boot time?
I did try this a while ago, by first installing with xen and then manualy adding the ordinary kernel, but the ordinary kernel failed to boot (for reasons I don't now recall - sorry). Clearly, there must be differences in the "virtualization" build other than the kernel.
The alternative, if I want to play with virtualization, would be to have two entirely separate installations, but this seems like a waste of space when surely almost everything must be identical?
I can't find anything in the Centos Xen documentation about this.
Before I try again I would just like to check if anyone actually knows if this is possible, or if not why not?
Or can it be done with KVM?
I am running yum update and it thinks 2.6.18-128.1.10.el5 is the latest kernel, even though its really 2.6.18-194.3.1.el5
Code:
[localdomain ~]# uname -a
Linux localdomain 2.6.18-128.1.10.el5 #1 SMP Thu May 7 10:39:21 EDT 2009 i686 i686 i386 GNU/Linux
[localdomain ~]# yum update kernel
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I need to install latest xen 3.4.2 to my centOS. I have:
* xen 3.4.2
* Linux 2.6.18 with Xen 3.4.x support source tarball, updated for Xen 3.4.2
* CentOS kernel-2.6.18-164.11.1.el5
Linux 2.6.18 with Xen 3.4.x have old cciss and scsi drivers. It don't support my hardware.
CentOS kernel-2.6.18-164.11.1.el5 works normaly, but was not compiled with xen 3.4.2.
How can I patch Linux 2.6.18 kernel or upgade CentOS kernel to the latest xen?
I installed ubuntu on a second hard drive.Nowhere did the fracken ubuntu installer ask my permission to over-write my mbr but that's exactly what it did.I'm booted off the rescue CD trying to restore the mbr to how centos left it (I'll add ubuntu to grub manually) but I can't boot into rescue.linux rescue results in a kernel panic suggesting I need the noapic argument. Makes sense, I needed that to install and need that in grub.linux rescue noapic boots into the installer, not rescue.How do I boot into rescue mode with the noapic kernel argument?
View 2 Replies View RelatedI have a Centos 4.8 linuxbox running in VMWare ESXi 4 and the kernel is 2.6.9-89.0.11.ELsmp. Recently, this linuxbox is quite unstable, it has kernel panic once a week... But we didn't have any configuration changes on it. And I have attached the kernel panic console screen and lsmod for the server.[URL]...
View 2 Replies View RelatedI have builded my kernel through wiki manual, BUT, the kernel-headers rpm-package has not been builded. Now i have only two packages: kernel and kernel-devel. Is that ok? (i think, that it is not ok, because when i build the same version of kernel on x86_64 platform, after rpmbuild command i have kernel, kernel-devel and kernel-headers packages) My CentOS version is 5.2; platform i686; kernel, kernel-headers, kernel-devel packages 2.6.18-92.el5.
View 6 Replies View RelatedI'm using Cpanel on my server, before upgrade to new kernel, i could see 8 cores on my i7 server, now i only see 4 cores, is there anything that i need to do to have another time the 8 cores?
View 2 Replies View RelatedI installed the Centos 5.5 with XEN and put 03 virtual machines (Centos 5.5 too). I did this correctly, but I have a problem. In the virtual machine, I need update the kernel. I used "yum update kernel" and this is downloaded correctly and the menu.lst file is updated too, but the kernel not ran. I ran "grub-install /dev/sda" or "grub-install /dev/xvda" and received a error return. I read the device.map file and i ran "grub-install /dev/sde" and received a error return too.
The errors:
[root@vm01 ~]# grub-install /dev/sda
/dev/sda: Not found or not a block device.
[root@vm01 ~]# grub-install /dev/sde
/dev/sda1 does not have any corresponding BIOS drive.
[root@vm01 ~]# grub-install /dev/xvda
/dev/xvda: Not found or not a block device.
how can i make 1000fps stable kernel
View 2 Replies View RelatedLinux using CentOS server and while updating this using yum update, it shows error like this
The program package-cleanup is found in the yum-utils package.
I can install VMware Server 2.0.1 on CentOS 5.3 (32-bit and 64-bit) perfectly. However, I can't access Server's web interface by going to port 8222 on the machine's IP address. When CentOS 5.3 (32 or 64-bit) is loading, I am greeted with this message "VM communication interface socket family: vsock: no version for "VMCIDatagram_Send" found: kernel tainted." I assume this is the reason why I can't access my Server through a web browser. How do I correct this? Is there a package I need to install on CentOS prior to installation of Server 2.0.1?
It's strange, because I can install 2.0.1 on Ubuntu Server 8.10 with absolutely no problem and access its web interface. So I think this might be a CentOS-specific issue I've uncovered.
I have installed CentOS 5.3 with Xen on a PowerEdge 2650 machine with 6GB of RAM. As usual, PAE was already enabled so I did not have any problem with utilising all of the memory. However after upgrading to the latest release of the kernel (2.6.18-128.7.1.el5xen), memory available decreased to 4GBs. Then I switched back to the old kernel and 6GB was there. Then finally have switched back to the new kernel and 6GB is again there. So now PAE seems to be enabled but what concerns me is the inconsistent behaviour. (Also I am not sure the reason was the upgraded kernel.)
View 2 Replies View RelatedMy problem is that I can't setup a diskless environment with CentOS 5.4 (server) and CentOS 3.9 (hosts). On the host, I've recompiled the CentOS 3.9 kernel, with these mods:
- added kernel level IP autoconfiguration;
- added NFS file system support;
- added Root file system on NFS;
- added e1000 driver (the host has a gigabit network card);
Then, I have followed the guide at this link: [URL]
But in my dhcpd.conf I'he put other parameters:
ddns-update-style interim;
allow bootp;
allow booting;
subnet 192.168.195.0 netmask 255.255.255.0 {
range192.168.195.70 192.168.195.90;
option routers192.168.195.254;
option subnet-mask255.255.255.0;
option domain-name"lnf.infn.it";
option domain-name-servers192.168.195.254;
option time-offset-18000; # Eastern Standard Time
default-lease-time21600;
max-lease-time43200;
filename"linux-install/pxelinux.0";
next-server192.168.195.254;
}
host dante79 {
option host-name"dante79";
hardware ethernet00:20:38:01:C3:7C;
fixed-address192.168.195.79;
}
Here's the text from the serial console before I rebooted:
BUG: unable to handle kernel paging request at ffff8140320234b8
IP: [<ffffffff802b0a13>] dentry_iput+0x26/0x9d
PGD 8063 PUD 0
[code]....
My root server is using CentOS release 5.2 (Final), kernel 2.6.26.5-rootserver-20080917a, SMP, 64-bit This Oops happened yesterday and before that it happened on March 14th of this year, and before that on January 31st of this year, so a repeating pattern. On the January 31st Oops, I just rebooted. On the March 14th Oops, I reformatted the two swap partitions as follows: mkswap -c /dev/sda2; mkswap -c /dev/sdb2 On this last Oops, I turned off the swap for 24-hours, then decided to turn it on again after doing the above mkswap again. During the previous uptime, I had dumpcap packet capture running, but this last reboot, I'm not going to run it.
When do you know when to re-boot your server? I have Centos 5.6 As my remote web server running Direct Admin. I have also Centos 5.6 as a local back up server. With a KDE user interface so i can learn the graphical and command line. How ever when i query Yum for updates locally, i can see a nice extra icon next to the updates in KDE saying will require a reboot. But on my remote web server, how would i know if a Reboot would be required?
View 12 Replies View RelatedI want to upgrade kernel to 2.6..36 from 2.6.18 of CentOS 5.5. The make process is successful but prompt "could not find filesystem /dev/boot " after reboot.
Some articles suggest to edit file .config and set CONFIG_SYSFS_DEPRECATED_V2 to 'y' and re-make kernel. However, the problem still stand there after reboot again.
My company support a client with an old Redhead server " Linux version 2.6.9-5.ELsmp [URL] (gcc version 3.4.3 20041212 (Red Hat 3.4.3-9.EL4)) #1 SMP Wed Jan 5 19:30:39 EST 2005" My IT department wants to move this old server to a VMware machine and I'm trying to check if this project can fly. Me my self never worked on an old Linux server there for my first question is can I upgrade the kernel with the command yum -y install kernel..... and when I'm done I'm still going to have the old kernel just in case?
View 1 Replies View RelatedI'm trying to create new RAM image file to get my server load raid1 module upon start, I was following redhat documentation & it suggested to use the following command mkinited --with=raid1 inited-raid1-$(uname -r).img $(uname -r) However after running this command I'm getting this message No Kernel available for 'inited-2.6.18-128.el5"
View 4 Replies View Related