search for: partitionable

Hello all, I'm trying to install CentOS 6.3 to an mdadm partitionable array and not having any luck. The installer only allows me to create one file system per md device, or specify the md device as a LVM physical volume. I don't want to do either, I want to create one md device and create multiple partitions on top of the md device. I thought that perhaps the...

Hello Since linux 2.6, the md layer has a feature called partitionable arrays. So instead of having two disks, creating an identical partition table on both and then putting those partitions in RAID 1, you take those two disks and put them in one partitionable RAID 1 array (in mdadm terms, "mdp") and create a partition table on the new RAID device. The advan...

Hi, I've written two small howtos, and would like to contribute them to the CentOS Wiki. The first one is "How to install CentOS 5 on software partitionable mdadm RAID1", and the second one "How to repair a software mdadm RAID5 with two or more failed disks (if you know that information is still on the disks and readable)". I think that the first one should be somewhere like wiki.centos.org/HowTos/Install_On_Partitionable_RAID1 with a re...

...rying to install Centos6 on my system (it's been running C5 for years). I've got a pair of drives, so I'm trying to use RAID-1. Previously I used a procedure where each partition was part of a separate RAID device, but this time I'm trying the HOWTO from the Centos WIKI on making a partitionable RAID pair. I've been having a lot of problems, but have also been working thru them. but t his latest one has me stumped, I'd appreciate some advice. Booting encounters a panic when trying to mount the RAID subsystem. you can see an image of it at users.rcn.com/fredricksmith/panic.JPG...

In the disk partitioner, I can't 1) choose to make the LVM with root and swap be on a RAID 1. Is there some way to do that, rather than two separate partitions RAIDed? 2) They don't align, so I can't clone /dev/sda to /dev/sdb as a failover (for /boot and /boot/efi). I've created those two, manually, and nope, it wiped them out, so I can't clone

I have some suggested tweaks and changes to http://wiki.centos.org/HowTos/Install_On_Partitionable_RAID1 1. The user should be instructed to start rescue mode with networking in order to be able to retrieve the patch for mkinitrd. 2. The command to create /etc/mdadm.conf will result in an extra line "spares=1" while the array is still syncing. Adding " | head -1 " to th...

Hi! Did anyone tried this on 5.4? having a look on http://wiki.centos.org/HowTos/Install_On_Partitionable_RAID1 is would seem that that mkinitrd patch is no longer required. Can someone ack this? Thanks, Adrian -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/x-pkcs7-signature Size: 3110 bytes Desc: S/MIME Cryptographic Signature URL: <h...

Hi, After reading the tutorial at http://wiki.centos.org/HowTos/Install_On_Partitionable_RAID1 I have the following question: What should I put instead of splashimage=(hd0,0)/grub/splash.xpm.gz and root (hd0,0) on /etc/grub.conf? Should I leave those lines untouched? If so, how would grub know where to boot from if /dev/sda fails? Or I would need to swap the drives in orde...

Environment: CentOS 6.2 amd64 (min. server install) 2 virtual hard disks of 10GB each Linux KVM Following the instructions on CentOS Wiki <http://wiki.centos.org/HowTos/Install_On_Partitionable_RAID1> I installed a min. server in Linux KVM setup (script shown below) <script> #!/bin/bash nic_mac_addr0=00:07:43:53:2b:bb kvm \ -vga std \ -m 1024 \ -cpu core2duo \ -smp 2,cores=2 \ -drive file=/home/arunk/KVM/vdisks/centos62.raid1.disk1.img \ -drive file=/home/arunk/KVM/vdisks/cent...

...of a question mark for me. I'm looking for suggestions and opinions .... This new machine has tons of disk space, lots of CPU cores and loads of RAM, so those are not issues. I currently have several software RAID-6 md's, each of which is about 700 GBytes. The md's are created as partitionable arrays, and I assign the resulting "raw" disk devices to each CentOS Guest OS, which then partitions the space according to its needs. Unlike using the more common "filesystem-in-a-file" method, the use of partitionable MD devices usually results in wasted disk space, but my...

...-a or --auto, but cannot seem to find the correct syntax. From the man page it says: -a, --auto{=no,yes,md,mdp,part,p}{NN} Instruct mdadm to create the device file if needed, and to allocate an unused minor number. "yes" or "md" causes a non-partitionable array to be used. "mdp", "part" or "p" causes a partitionable array (2.6 and later) to be used. The argumentment can also come immediately after "-a". e.g. "-ap". Am I doing something wrong, or is there no way to get...

On Tue, May 20, 2014 1:52 pm, Anatol Pomozov wrote: > Ok, we've figured out potential cause of the problem. The next > question how to minimize the size of ldlinux.sys? > > BTW looking at official (?) binary > https://www.kernel.org/pub/linux/utils/boot/syslinux/Testing/6.03/syslinux-6.03-pre11.tar.xz > I see that their size is also more than 64K Actually, there is *no*

Oh, Boy. I am in trouble now.... I just installed Centos on a USB drive on my corp notebook. To not TOUCH my corp drive. I spent time with the drive partitioner to make sure that nothing was done to the internal hard drive... Well I missed something and I overwrote the encrypted bootloader on the hard drive. Now what? Can I rescue things? I am leaving for my flight in a couple hours to

...omponents only, never with the active components. Once in a while I'm lucky enough to have all components come up correctly when the system boots. Which hot spares fail to be configured is completely random. I have 12 2TB drives, each divided into 4 primary partitions, and configured as 8 partitionable MD arrays. All drives are partitioned exactly the same way. Each R6 array consists of 5 components (partitions) plus a hot-spare. The small RAID-1 host OS array never has a problem with its hot spare. The predominant theory via Google is that there's a race condition at boot time betwee...

Hi all! I'm building up a new box and plan to use Centos 5 on it. i've got a pair of SATA 320 GB drives to make a RAID1. I'm trying to follow the "howto" on the centos wiki for making a "partitionable RAID" installation. Given that my partition scheme has a separate /boot partition, while the one in the HOWTO apparently does not, I've had to tweak the steps just slightly. But they all succeed without any problems, including watching mdadm create the mirrored pair. however, when I pop...

Hello. I just tried (as my first attempt in xenning) to set up a lenny amd64 domU on a partitionable Mirror RAID (/dev/md_d0p1 - /dev/md_d0p4), using the Debian installer from "people.debian.org/~joeyh/d-i/images/daily/". The partitions of the md will be represented inside the domU as /dev/xvda1-4 accordingly. The dom0 seems to run fine, it''s Xen 3.2.1 on amd64 lenny. The d...

The EL7 partitioner is a complete disaster and I regularly bitch about it on twitter and irc. You could try to convince it with kickstart and bypass the GUI altogether. Another option is to boot in a Live CD and do you partitioning from there either manually or via Gparted and hope these changes will be picked up by the EL7 installer so you can just use them as they are. hth -- Sent from the

Gordon Messmer wrote: > On 10/15/18, mark <m.roth at 5-cent.us> wrote: > >> In the disk partitioner, I can't >> 1) choose to make the LVM with root and swap be on a RAID 1. Is there >> some way to do that, rather than two separate partitions RAIDed? > > As best I recall, there's no support in the UI for LVM volumes with > RAID level. (And I don't

Hello List, i try to install Centos 6 on a Server with 2x 3TB Disks. When anaconda is showing up the disk partitioner i cant do more then 3 "normal Partitions" or more then 3 "Raid Partitions". Even when u choose that each partition is 200mb, u cant do more then 3 "normal" or "raid" partitions. is this a bug of anaconda installer? thanks marko

Hi. The following HowTo on the CentOS Wiki: http://wiki.centos.org/HowTos/Install_On_Partitionable_RAID1 valid for CentOS 5, has not been updated to CentOS 6, yet. I found it very useful during the glorious CentOS 5 days and now that I've successfully ported my RAID1 experience to CentOS 6, I'd like to share it with the Community. The title of the HowTo is currently: "How to i...