similar to: Upgrading to CentOS-7 on a new partition

I'm having trouble installing CentOS-7 on my HP MicroServer. I've tried with KDE LiveCD and Netinstall (both on USB sticks), and now I'm going to try with the DVD ISO. But I want to be quite sure I can return to CentOS-6.5 if things go wrong, so I'm wondering what precisely I need to copy (eg the MBR and a bit more) so that I could get back to things as they were. Is this

Tru Huynh wrote: > On Fri, Jan 01, 2016 at 11:53:51PM +0100, Timothy Murphy wrote: >> My HP MicroServer crashes with a kernel panic >> when booted into kernel-3.10.0-327.3.1.el7.x86_64, >> but runs perfectly under kernel-3.10.0-229.20.1.el7.x86_64 . > AMD Turion64 cpu? > Could be related to: > https://bugs.centos.org/view.php?id=9860 > uptream at

If I boot into CentOS on my home server from a Live CD or USB stick and go to Troubleshoot, it lists OS's it finds on the machine. How does it find these OS's? Presumably it looks through all the partitions on all the hard disks for something that looks like an OS? But how exactly does it identify an OS? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College,

Gordon Messmer wrote: > On 07/03/2015 03:43 AM, Timothy Murphy wrote: >> I've tried this again, and it does not seem to work. >> Have you actually tried it? > I don't have a CentOS system here that I can reboot readily. And it > occurs to me that if I did, I didn't ask if your system boots via BIOS > or UEFI. Thanks for your response. It boots via BIOS, and

I have a working CentOS-7 machine. I want to install grub2 on a USB stick (without altering my present system in any way) so that I can boot the present system from the USB stick. Could some kind (and expert) soul explain precisely what to do. If it were possible to boot other systems on the computer as well that would be an added bonus. I did google for this, but all the sites I saw wanted to

Do most people today have /boot on a separate partition, or do they (you) have it on the / partition ? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin

Gordon Messmer wrote: > On 07/01/2015 06:02 AM, Timothy Murphy wrote: >> I also tried "sudo grub2-install /dev/sdb" >> but for some reason this did not do the trick. > > That should place a boot loader on sdb that will boot the system. What > behavior did you observe when you tried to boot from that USB drive? I've tried this again, and it does not seem to

I have a remote home server updated to CentOS-7.2.1511 (as stated in /etc/redhat-release) but I have not re-booted since the update. The machine is currently running kernel 3.10.0-229.11.1.el7.x86_64. I'm wondering if anyone has advice on any safety steps I can take before re-booting, so that in the event of failure I can give simple instructions to my daughter at the other end on how to get

I seem to have partitions on two different disks with the same UUID: [tim at helen ~]$ sudo blkid /dev/sda2 /dev/sda2: LABEL="/boot1" UUID="5bbc8e95-6108-41f5-bc0e-5b5f8df5ce03" TYPE="ext3" [tim at helen ~]$ sudo blkid /dev/sdb2 /dev/sdb2: LABEL="/boot1" UUID="5bbc8e95-6108-41f5-bc0e-5b5f8df5ce03" TYPE="ext3" This is

This, IMHO, is one of the more annoying bugs with the newer GRUB (which i assume is the bootloader you are using). Specifically the newer grub can't, won't boot from a drive other than the one grub is on. suggest you revert to grub 0.97 or, if any boot loader is or can be put on the drive with the 6.5 distro you can make that drive the boot drive in the bios, which is how i do it. i.e.

I'm currently running CentOS-7, but I'd like to re-boot into CentOS-6.5 which I have on another partition. Although this OS is in the grub list when I boot, if I try to run it I get a segfault. I guess this is something to do with the change from grub to grub2? In any case, I'm wondering if there is any simple way of booting into both CentOS-6 and CentOS-7? -- Timothy Murphy

I'm getting repeated email (KMail) error messages about one apparently over-large post: -------------------------- Received: from helen.gayleard.com (localhost.localdomain [127.0.0.1]) by helen.gayleard.com (Postfix) with ESMTP id E4500294A0 for <tim at helen.gayleard.com>; Sat, 24 Jan 2015 14:00:05 +0000 (GMT) Received: (from tim at localhost) by helen.gayleard.com

I recently asked about copying a running system to a new drive. As a postscript, I'm wondering if it would have been preferable to run the machine under a Live OS, and simply copy the root partition to the new drive? Eg while running under the LiveOS, # mkdir /mnt/old /mnt/new # mount /dev/sda7 /mnt/old # mount /dev/sdb6 /mnt/new # cp -avx /mnt/old /mnt/new or # rsync -ax

Mike - st257 wrote: > On Wed, Jun 3, 2015 at 6:11 AM, Timothy Murphy > <gayleard at eircom.net> wrote: > >> Has the CentOS logo disappeared from CentOS-7? > > You are referring to Plymouth splash screen while booting. > >> I thought the logo in CentOS-6 was very pleasant. Probably. The fact remains that booting was attractive, and now it isn't. --

I'm running httpd-2.4.6-31.el7.centos.1.x86_64 under CentOS-7 (kernel 3.10.0-229.14.1.el7.x86_64). I cannot get the httpd userdir facility working; when I try to access localhost/Menloe I get the message "You don't have permission to access /Menloe on this server." I see in /var/log/httpd/error_log "Symbolic link not allowed or link target not accessible:

Look in /etc/httpd/conf.d/ for userdir.conf. -----Original Message----- From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf Of Timothy Murphy Sent: Friday, September 25, 2015 1:04 PM To: centos at centos.org Subject: Re: [CentOS] httpd userdir problem Timothy Murphy wrote: > I'm running httpd-2.4.6-31.el7.centos.1.x86_64 > under CentOS-7 (kernel

I recently transferred the / partition on my CentOS server from a small disk to a large disk, using "rsync -auvz". This works fine, except that I get dozens of selinux warnings when I re-boot. I'm running selinux in permissive mode. Is there any way to make sure that all the files in a partition are kosher as far as selinux is concerned? -- Timothy Murphy e-mail: gayleard /at/

A bit OT, but I'm running CentOS-5.6 on this machine (in fact on two of them) and it seems to run perfectly - I've had no problems at all. Except that I'd like to add a second ethernet port, and am not sure where one can find a card that will fit this machine. As far as I can see, it requires a half-height PCIe card, which seems to be rather a rare animal. (There doesn't seem to

Bowie Bailey wrote: > On 9/13/2015 10:58 AM, Timothy Murphy wrote: >> >> I take it then that there is no CLI method >> of setting up and running BackupPC ? > > Sure there is. All of the configuration is stored in text config > files. There is a main config file for global options and each host has > a config file in it's own directory. Yes, it was pointed

Has the CentOS logo disappeared from CentOS-7? I thought the logo in CentOS-6 was very pleasant. Also I liked the way in which one increasing circle inside another showed how the boot was progressing. The dots going round and round in Microsoft fashion in CentOS-7 is a retrograde step, I think. One always has the fear it might continue forever. -- Timothy Murphy gayleard /at/ eircom.net School