CentOS

Like the OP, I had trouble with several munin plugins (one from the lamented "munin exchange" and the others from the EPEL package) after updating to CentOS 6.2 a month ago. I wanted to post my solution but didn't get around to it until now. Apologies to anyone who might have benefitted from the inf...

Depending on your hardware, I guess mdadm could drop such drives even when they're perfectly healthy but drives do not necessarily fail suddenly and completely so it could be worthwhile to check the SMART data and especially the SMART logs which are supposed to record past errors. You don't say what...

I recommend using LVM when you reinstall. LVM allows you to create, delete and resize paritions on the fly and has a few other convenient features. You usually choose to use LVM when you install the system by making only two partitions on your drive: one boot partition and a big LVM partition which ...

I never read the man man. Hit the Q key (q as in quit works in many situations). [quote]Teaching basic Linux is really not goal of this forum. New users should read http://www.centos.org/modules/newbb/viewforum.php?forum=47[/quote] But your link doesn't ask new users not to post their basic question...

Depending on how your drive is set up, it may be difficult to increase the size of a partition (you'd have to shrink others first). That's not a problem specific to Linux. Do you know how big your boot partition is? If you provided us with the output of the command "fdisk -l", we could tell that and...

It used to be that if you simply typed the two words "yum update" and hit enter, you would be shown a list of the stuff the package managers wanted to update. After agreeing to these updates, the latest versions would be automatically downloaded and installed (you would however need to reboot to use...

The command is "yum update". You need to run it as root but you can of course use sudo or something.

Please post the scary warning you got if you want help about it.

I don't know how "dynamic allocation" works in VirtualBox. I don't know how your CentOS guest is set up either. Post fdisk output perhaps. You can of course test what's going to happen by writing a 300MB file full of zeroes to your disk or something. I don't use rpmforge but trying to install nagios...

Another random thought: are ALL the relevant ports open in all firewalls?

It seems KVM is not available in the 32bit version of CentOS6.