similar to: Why is my default DISPLAY suddenly :3.0?

I had a rather large ext4 partition on an Areca RAID shut down uncleanly while it was writing. When I mount it again, it recommends fsck, which I do, and I get the following error: Failed to optimize directory ... EXT2 directory corrupted This error shows up every time I run fsck.ext4 on this partition. How can I fix this? The file system seems to work ok otherwise, I can mount it and it

I'm having an occasional problem with a box. It's a Supermicro 16-core Xeon, running CentOS 6.3 with kernel 2.6.32-279.el6.x86_64, 96 gigs of RAM, and an Areca 1882ix-24 RAID controller with 24 disks, 23 in RAID6 plus a hot spare. The RAID is divided into 3 partitions, two of 25 TB plus one for the rest. Lately, I've noticed sporadic hangs on writing to the RAID, which

I'm trying to work out the kinks of a proprietary, old, and clunky application that runs on CentOS. One of its main problems is that it writes image sequences extremely non-linearly and in several passes, using many CPUs, so the sequences get very fragmented. The obvious solution to this seems to be to use SSDs for its output, and some scripts that will pick up and copy our the sequences

I have a recently installed Mellanox VPI interface in my server. This is an InfiniBand interface, which, through the use of adapters, can also do 10GbE over fiber. I have one of the adapter's two ports configured for 10GbE in this way, with a point to point link to a Mac workstation with a Myricom 10GbE card. I've configured this interface on the Linux box (eth2) using

I have a rather large box (2x8-core Xeon, 96GB RAM) where I have a couple of disk arrays connected on an Areca controller. I just added a new external array, 8 3TB drives in RAID5, and the testing I'm doing right now is on this array, but this seems to be a problem on this machine in general, on all file systems (even, possibly, NFS, but I'm not sure about that one yet). So, if I use

I have an 8-core SuperMicro Xeon server with CentOS 6.3. The OS is installed on a 120 GB SSD connected by SATA, the machine also contains an Areca SAS controller with 24 drives connected. The motherboard is a SuperMicro X9DA7. When I installed the OS, I used the default options, which creates an LVM volume group to contain / and /home, and keeps /boot and /boot/efi outside the volume group.

I'm on a Supermicro server, X9DA7 motherboard, Intel C602 chipset, 2x 2.4GHz Intel Xeon E5-2665 8-core CPU, 96GB RAM, and I'm running CentOS 6.4. I just tried to use yum to upgrade the kernel from 2.6.32-358 to 2.6.32-431.29.2. However, I get a kernel panic on boot. The first kernel panic I got included stuff about acpi, so I tried adding noacpi noapic to the kernel boot parameters,

Apparently I hadn't done any scanning since my move to centos. hp-scan works for root, but not for me as me. When I try to use xsane, it tells me no device found. When I try to use hp-scan as myself it tells me: error: Unable to locate device hpaio:/usb/Photosmart_C3100_series?serial=CN6ARC321S04KV using SANE backend hpaio:. Please check HPLIP installation. What do I change to make it let me

Last week, I installed CentOS 6 yet again. I took the default desktop: gnome. Whenever I open a directory, I get a new window. That gets rather annoying, especially when I have to drill down several levels. Is there around that behaviour? If it's in edit->preferences, I didn't find it. Eventually I expect to change desktops. Until then, any ideas? -- Michael hennebry at

> -----Original Message----- > From: Les Mikesell [mailto:lesmikesell at gmail.com] > Sent: Tuesday, October 29, 2013 5:25 PM > To: CentOS mailing list > Subject: Re: [CentOS] How should I reinstall CentOS? > > On Tue, Oct 29, 2013 at 3:47 PM, Michael Hennebry > <hennebry at web.cs.ndsu.nodak.edu> wrote: > > <SNIP> > > > I'm not willing to

I clicked on a window to try to raise it and get a good look. Instead, my screen turned the baby blue mentioned in the subject and I could do nothing else. The mouse cursor was not even visible. It's possible an alternate terminal was available, but I didn't think of it at the time. Eventually I hit the reset button. My Daktech machine has a reset button separate from the power button. The

Sommetimes, for no apparent reason, my mouse cursor will become four arrows and suddenly I cannot do anything with my desktop. I can move the cursor and that is it. Clicking has no effect. cnrtl-alt-F6 gave me another virtual console from which I could post this. Other rebooting, how do I fix this? I'm running xfce on 6.2. -- Michael hennebry at web.cs.ndsu.NoDak.edu "On Monday,

fred.c: static void sfunc(int *p) { *p=1; } static int x; void fred(void) { ... sfunc(&x); ... } greg.c: static void sfunc(int *p) { *p=2; } static int x; void greg(void) { ... sfunc(&x); ... } Once the object files from fred.c and greg.c are linked, how does ELF distinguish the sfunc's and the x's? I've been trying to RTFM, but it hasn't helped? -- Michael

CentOS 6.4 died on me again. Didn't leave any traces that I could find. The screen just suddenly went black. Couldn't switch to another virtual terminal. Pushing the reset button worked. Didn't have to power off this time. -- Michael hennebry at web.cs.ndsu.NoDak.edu "On Monday, I'm gonna have to tell my kindergarten class, whom I teach not to run with scissors, that my

CentOS 6.3, libreoffice-core-3.4.5.2-16.1.el6_3.x86_64, running kde I had a couple of documents up. From a terminal window, I ran soffice to look at a document I'd just received in an email*. Looked at it. Killed the soffice session... and the other docs closed, and libreoffice shut down. Anyone else seen something like this? mark * For extra measure, I know that I've put *.docx in

" Message from syslogd at localhost at Aug 27 08:57:53 ... kernel:Disabling IRQ #17" is the message I got on all my terminal windows at the time indicated. What is it complaining about? What should I do about it? I got some information from dmesg. It mentions IRQ 17, but the only error is from before the most recent hibernation. Here are some excerpts, in order from dmesg: SELinux:

Everyone, I am working on a Centos 5.9 system. I have an need to be able to activate a piece of software from /etc/smrsh that is activated when sendmail delivers the e-mail to this piece of software. I would like this piece of software to take on the user and group identities that are different than 'mail' which is what happens now. I want to use a user and group that is not root), so

So, I have a CentOS 6 system, and I want to make several clones of it. I'm using Clonezilla to clone the drives; that's no problem. But the drive UUIDs are driving me up the wall. After cloning, the two drives have the same UUID, but I'd like each clone to have different UUIDs so there's no possibility of a conflict when I am running diagnostics with two drives installed, etc.

Hi all, I'm doing a very informal and unscientific poll: which kernel do you use on your CentOS machines? Not which version of the CentOS kernel, but which repository. Here are some examples I can think of off the top of my head: ==CentOS stock ==build own from CentOS SRPMs ==kernel-ml (from ELRepo) ==kernel-lt (from ELRepo) ==OpenVZ kernel ==build own from kernel.org ==other? One reason

On Mon, 14 Mar 2016 09:32:42 +1000 Noel Butler <noel.butler at ausics.net> wrote: > On 13/03/2016 20:47, Stephan von Krawczynski wrote: > > On Sun, 13 Mar 2016 09:45:06 +0000 > > James <lista at xdrv.co.uk> wrote: > > > >> On 11/03/2016 15:17, Stephan von Krawczynski wrote: > >> > >> > zfs set sync=disabled ? > >> >