1
vote
1answer
21 views

Removeing ulimit from boot / init

In CentOs as from version 6 there is a by default process limit 1024 for every user i.e /etc/security/limits.d/90-nproc.conf * soft nproc 1024 I have to execute a backend ...
0
votes
0answers
147 views

Kernel update on Xen CentOS

Running a "yum update", CentOS try to install a new kernel. However, I get this: Installing : kernel-2.6.32-358.6.2.el6.x86_64 1/1 grubby fatal error: unable to find a suitable template ...
1
vote
2answers
391 views

Server freezes and suddenly load going very high

I'm on CentOS 5.7 and I get server freezes quite a lot and the logs show the following output: Dec 26 18:33:51 server kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this ...
-4
votes
1answer
69 views

Which Flavour of Linux comes with default kernel 3.4? [closed]

I was using centos but came to know it has restrictions to upgrade kernel version so looking for any other flavour with default 3.4 kernel version please suggest
5
votes
4answers
16k views

In CentOS 6.x, how can I upgrade to Kernel 3.4?

I have a server with CentOS 6.2 with kernel version 2.6.32, but I need to increase my application Performance. The Kernel Version 3.4 has x32abi which can improve the performance so i want to upgrade ...
0
votes
1answer
734 views

How can I confirm if my CentOS server supports multiple CPUs?

CentOS 5.8 | VMWare I've got a server running a hardened version of CentOS 5.8. I've been using a single CPU on it and am planning to add another (via vmware). When I run uname, I see SMP which ...
1
vote
1answer
232 views

Nonstandard kernel on CentOS

CentOS/RH is very widely supported as a server distro, but it mounts a somewhat older kernels. For example now it runs kernel 2.6, while 3.6 is already out. I found several tutorials about upgrading ...
0
votes
1answer
121 views

yum security update - message indicating kernel version not up to date

Running yum --security check-update returns this message: Security: kernel-3.x.x-x.63 is an installed security update Security: kernel-3.x.x-x.29 is the currently running version I already ran the ...
0
votes
1answer
63 views

CentOS: Prevent the kernel from updating?

I have installed a non-rpm custom kernel. I have a cron job which does yum -y update in the background. Is it sufficent to remove the kernel packages to prevent them from being updated?
0
votes
1answer
114 views

Installing a custom 'non-rpm' kernel in CentOS 6

I've built a custom kernel using kernel.org, it has no .rpm file. How do I manually: Install the Modules to /lib/modules (make moduleinstall or something?) Make the initial ramdisk Update grub I ...
0
votes
2answers
2k views

Centos kernel .config file. Where can I find it?

I am rebuilding a custom kernel. I am on Windows, what is the quickest way to grab the .config file for the CentOS RHEL linux kernel (for make oldconfig). I can't find it preinstalled in the Linux ...
1
vote
2answers
121 views

linux sever interfaces automation

I am using a CentOS server which has about 6 active interfaces with different IPs, I'd want to automatically bring down all the interfaces when any one of the 6 interfaces is down. Is there a way this ...
3
votes
2answers
5k views

How do I set the default kernel parameters in CentOS for all existing and future kernels?

I'd like to remove the rhgb and quiet kernel parameters which are used by default when the kernel is booted in CentOS 6, but I want this to apply to all currently installed kernels as well as any ...
0
votes
1answer
193 views

Xen dom0 crashed

Lots of questions this week, I got this error on dom0, then the server crashed (according to /var/log/messages): Jun 22 10:02:09 453 dhcpd: DHCPACK to xx.xxx.xxx.xx (xx:xx:xx:xx:xx:xx) via eth0 Jun ...
0
votes
1answer
152 views

How can i break my own linux kernel [closed]

I was reading the linux book which says this Finally, if you break your kernel or boot loader, you won't be able to get to single-user mode without extra help. You can often boot your system ...
0
votes
2answers
655 views

Kernel panic almost daily, why?

Running latest version of CentOS 5 64. Get these almost daily, at totally random times. The box is a file delivery machine, that usually sends around 2.3Gbit Message from syslogd@localhost at Jun 28 ...
0
votes
1answer
210 views

Storage drives is causting system crash

I'm running Centos 5.4 with 750GB(ntfs) and 2TB drives for storage. Originally I installed the 750, everything seemed fine and then I installed the 2TB drive with NTFS already partitioned. I noticed ...