similar to: change md uuid?

Is there some new trick to making raid devices on Centos5? # mdadm --create /dev/md3 --level=1 --raid-devices=2 /dev/sdc1 /dev/sdc1 mdadm: error opening /dev/md3: No such file or directory I thought that worked on earlier versions. Do I have to do something udev related first? -- Les Mikesell lesmikesell at gmail.com

On one of my machines yum hung up while installing the updates and could not be interrupted or killed. I rebooted the machine the next day, but now a 'yum update' reports: Error: Missing Dependency: openssh = 3.9p1-8.RHEL4.12 is needed by package openssh-askpass-gnome and Error: Missing Dependency: rpm = 4.3.3-13_nonptl is needed by package rpm-build even though rpm -q says those

How much is likely to break if you keep a locally installed /boot partition with it's anaconda-crafted module set in the initrd, but wipe and completely replace / and any other partitions with a copy from a machine that has somewhat different hardware? Assume both machines are running the same kernel versions and the change is done while running from the rescue CD or other livecd boot.

I had this working once but had to re-use the machine and didn't keep track of what it took. Does anyone have a list of the extra packages needed to run vmware server on a machine with the single-disk x86_64 server install + updates. glibc.i686 installed ok, but xorg-x11-libs.i386 has a conflict with fontconfig that I don't recall from the previous time. Could that have changed with the

Nmhxc Sent from my BlackBerry? wireless handheld -----Original Message----- From: centos-request at centos.org Date: Sat, 15 Mar 2008 12:00:07 To:centos at centos.org Subject: CentOS Digest, Vol 38, Issue 15 Send CentOS mailing list submissions to centos at centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos or, via email,

I have a 750Gb 3-member software raid1 where 2 partitions are always present and the third is regularly rotated and re-synced (SATA disks in hot-swap bays). The timing of the resync seems to be extremely variable recently, taking anywhere from 3 to 10 hours even if the partition is unmounted and the drives aren't doing anything else and regardless of what I echo into

If you have the epel repo installed and enabled during a yum update, you get java-1.6.0-openjdk-1.6.0.0-1.0.b12.el5.2 instead of the stock .b09 version. Is this intentional and desirable? I thought epel generally did not replace stock components with newer versions. -- Les Mikesell lesmikesell at gmail.com

i need to remove a software raid 1 form my system. I have yet to find a way that applies to 2.6x kernels. I know the information is out there. Would anyone care to give me a pointer? This array is data storage only and does not house any critical system files. -- My "Foundation" verse: Isa 54:17 No weapon that is formed against thee shall prosper; and every tongue that shall

If you have a disk with several partitions set up as members of a raid1 md devices, can you make a dd image of that disk to replace its matching drive with identical partitions or are there differences between the mirrored partitions? -- Les Mikesell lesmikesell at gmail.com

OK sorry to hammer the list but one more question - having almost got the drives mirrored and happy - since I have created a custom initrd that has the raid1 drivers in it, do I now have to tell yum to ignore kernel updates? Will the stock kernel render me unbootable? Actually I am not 100% sure the initrd I created # mkinitrd -f --preload=raid1 /mnt/tmp/initrd-`uname -r`.img `uname -r` is

Hi, I had a CentOS running and working fine. Recently i had upgraded it to 4.4. I would like to do a raid1 on this machine. Is it possible to do it? Or do i need to reinstall the system with raid1? regards

Hi, Since the data is available in two places on a RAID1 array does the code in any way make use of that for improved performance by reading (different) data form both disks at the same time? Or is the one disk simply a slave that just receives copies of the data and is never really read from at all? Thanks

I recently set up a new system to run backuppc on centOS 5 with the archive stored on a raid1 of 750 gig SATA drives created with 3 members with one specified as "missing". Once a week I add the 3rd partition, let it sync, then remove it. I've had a similar system working for a long time using a firewire drive as the 3rd member, so I don't think the raid setup is the cause

Hi All, I've got a brand new dovecot installation. I'm new to dovecot, so please be gentle :-) Anyway, I'm getting some errors when I try to connect to dovecot. I've tried searching the web and haven't been able to find a lot of information. Here's the config info: # dovecot --version 1.1.2 # dovecot -n sudo dovecot -n # 1.1.2: /usr/local/etc/dovecot.conf base_dir:

Lol - spinning disks? Really? SSD is down to like 50cents a gig. And they have 1TB disks... slow disks = you get what you deserve... welcome to 2015. Autolacing shoes, self drying jackets, hoverboards - oh, yeah, and 110k IOPS 1TB SamSung Pro 850 SSD Drives for $449 on NewEgg. dumbass -----Original Message----- From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf

Has anything changed in updates that would affect md raid1 resync speed? I regularly swap a 750G drive and resync to keep an offsite copy and haven't paid enough attention to known when things changed but it seems to take much longer to sync than it did months ago, even if I unmount the partition and stop most other processes that might compete with it. -- Les Mikesell

What's the right way to set up >2TB partitions for raid1 autoassembly? I don't need to boot from this but I'd like it to come up and mount automatically at boot. -- Les Mikesell lesmikesell at gmail.com

Hi all, I?m trying to create a RAID1 on a machine. I?ve already configurated BIOS (mother board, Intel, S500VSA SATA) so as to build RAID1 via hardware. However on CentOS Installer, when I reach "disk setup" screen, it shows up 2 devices (/dev/sda and /dev/sdb). Is this right (both devices being showed)? How should I proceed on this moment? If I create the

On Mon, Feb 2, 2015 at 11:37 PM, Jatin Davey <jashokda at cisco.com> wrote: > > I will test and get the I/O speed results with the following and see what > works best with the given workload: > > Create 5 volumes each with 150 GB in size for the 5 VMs that i will be > running on the server > Create 1 volume with 600GB in size for the 5 VMs that i will be running on >

On earlier versions of Centos, I could boot the install CD in rescue mode, let it find and mount the installed system on the HD even when it was just one disk of RAID1 partitions (type=FD). When booting from the centos5 disk the attempt find the system gives a box that says 'You don't have any Linux partitions'. At the bottom of the screen there is something that says: