Ubuntu :: Hardware RAID Showing As Seperate Partitions After 10.04 Upgrade?
Sep 27, 2010
I have been trying to upgrade my server to Ubuntu 10.04 since it has come out, but I hit a roadblock with my hardware RAID I have two JBODs that work perfectly in Ubuntu 9.10 x64 - but show as seperate, unformatted partitions (one per hdd) in Ubuntu 10.04 x64. Here's the relevant portion of my fstab:
UUID="1fac4a2c-6a2e-4278-bab4-c7179c8720ee" /media/Motherload ext4 exec,auto,async,rw 0 2 #4TB-ext4-/dev/mapper/pdc_cabedbfaef1
UUID="31f1f023-e6a0-4b5e-b9d9-0a46011e7fa0" /media/Fry ext4 exec,auto,async,rw 0 2 #3TB-
[code]....
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Feb 3, 2011
I have a motherboard with the following chipset Intel 945GM + Intel ICH7R Chipset
This board: http://emea.kontron.com/products/boa...6lcdmmitx.html
I have two 320GB HDDs setup in hardware raid as shown below. But in gparted they are showing as two seperate drives. Why is this?
Raid setup:
GParted
fdisk -l
What am i doing wrong here?
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Jan 6, 2010
I recently installed Fedora 12 for use with Amahi HDA. Before installing on the Hard drive I used the LIVE CD to test it out. While using the LIVE CD I could see all my HDD's. My file system, my 2nd Hard Drive, and my Raid 0 Configuration. (2 250GB drives) and could browse all my files on those drives.
After installing the full version on my hard drive, my RAID drives are showing up as seperate drives. I have a Asus P4P800 board using hte SATA raid. I know its FAKERaid and not a true hardware raid.
My goal is to restore the Raid in Fedora and make those drives active. However, i dont want to lose any of the data on those drives. To make sure I wasn't an idiot, i rebooted withthe LIVE CD again and verified that I could see the Raid Array.
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Apr 8, 2010
i have cretaed RAID on one of my server RAID health is ok but its shows warning. so what could be the problem. WARNING: 0:0:RAID-1:2 drives:153GB:Optimal Drives:2 (11528 Errors)
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Jul 12, 2011
Objective: To dual boot Ubuntu 11.04 and Windows 7
Problem: When I use Live USB and try to install Ubuntu 11.04, two of my partitions are not showing up.
System:
C2D 3.1 Ghz
6 Gb of Ram
Nvidia 8800 gt
More info:
I have a self built machine which is currently running windows 7 64 bit.
4 hard drives
2 x 1 TB (mirrored)
1 x 500 Gb (single)
1 x 320* Gb (Windows 7 is installed here) <--both do not show up in the installer
*Split into 247 Gb and 73.4 Gb partitions
fdisk -l output
Code:
Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x76a81caa .....
This happens in Ubuntu 10.10 and 11.04, the screen shot above was taken in 10.10. Also I can mount the 247 Gb partition in the Live USB, however doing so does not make it show up in the installer.
Things I have tried:
Unplugging all of the hard drives except for the 320 Gb hard drive, as a result not drives showed up in the installer but where present in Gparted and "Places".
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Mar 7, 2010
I have what is a weird problem, at least I think it is. I deleted some files and now my partitions do not show up in Gparted. Instead, the entire disk shows up as unallocated space. I am still able to run every partition, one of which is ubuntu and another which is Windows without any other apparent problems. here is my fdisk -l:
Code:
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
[code]....
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Sep 30, 2010
I set up a new copy of 10.04, and I encrypted each partition. Now, all of the partitions show up in nautilis.
I have two drives, one has /home, and the other has /, /boot, and a swap area.
Correction, /bbot does not show up, but all of the others show up in nautilis(including swap), but I can't open them, I can just access them normally through /
how I can hide these?
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May 14, 2011
I upgraded to Ubuntu 11.04 from 10.10 about a week or so ago and since the upgrade when I boot into Ubuntu (I am running a dual boot Ubuntu and win7) other HDD's and partitions often do not show up anywhere on my system. For example I have an ntfs partition that I store music on so I can access it on either windows or ubuntu, as well as other partitions. When this issue occurs even my dvd drive appears not to exist. I have to reboot my machine sometimes 4 or 5 times before the drives/partitions show again. I had no issue like this before running the upgrade or using earlier versions of Ubuntu.
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Aug 28, 2010
I am using Ubuntu 10.04 x64. I am not trying to install Ubuntu on a RAID 1 drive like all of the guides are for. I have a RAID 1 array that I am using for data storage. In windows it shows as a single array just fine. In linux it shows as 2 separate drives. I don't care how they show up to be honest I just have to data written to one drive written to the other automatically as well so my RAID isn't screwed up. Looking through different articles and forums I find a lot of stuff saying that it should show up under /dev/mapper/dxxx or something under /dev/mapper. All that shows up there for me is a device called control which doesn't seem to do something.
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Oct 17, 2010
i just installed ubuntu 10.10 im using it now but my 2nd partition that got all my backed up files on is not showin up so i ask how do i get to use it ? and another thing is when i was installing the backup partition said it has no MB used ?
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May 8, 2011
There are 4 drives in my PC. now i have installed natty on it and I can't see other drives except the filesystem. Any tool that can make all my partitions visible. I used live CD to install Ubuntu 11.4
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Apr 10, 2010
Complete Linux newbie here I've got Ubuntu up and running, and I looked in Storage Device Manager and noticed something strange. My computer has one 80 gig drive with two partitions (XP and Ubuntu) and one 500 gig drive where I store my data. Here's my Fdisk -l:
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
[code]....
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Oct 4, 2010
So, over the next couple of days I'm going to be building a new file server based on Ubuntu with three 2TB drives (and possibly a pair of 500GB drives I already own) in RAID 5 using mdadm. I'm under the impression that I would be able to add the 500GB drives using mdadm; while all drives need to be of the same capacity for hardware RAIDs, software RAIDs are able to work with different-sized volumes. Is this correct?
i right in thinking that mdadm presents the RAID as a drive which can then be used like a single drive would be? create a logical partition within the RAID formatted with HFS+ which can be used for network-based Time Machine backups for a few Macs in my house.Now, this is where I particularly show my ignorant side: is it possible to create a logical partition with a variable size? Similar to how a virtual hard drive works with some virtual machines; a "drive" may take up to 200GB, for example, but is only as large as the amount of data it stores. If it is possible, is this only for certain partition formats?
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Apr 24, 2010
I shall start off by saying that I have just jumped from Windows 7 to Ubuntu and am not regretting the decision one bit. I am however stuck with a problem. I have spent a few hours google'ing this and have read some interesting articles (probably way beyond what the problem actually is) but still don't think I have found the answer.I have installed:
Distributor ID: Ubuntu
Description: Ubuntu lucid (development branch)
Release: 10.04
Codename: lucid
I am running the install on an old Dell 8400. My PC has an Intel RAID Controller built into the MB. I have 1 HDD (without RAID) (which is houses my OS install) and then I have 2 1TB drives (These are just NTFS formatted drives with binary files on them nothing more.) in a RAID 1 (Mirroring) Array. The Intel RAID Controller on Boot recognizes the Array as it always has (irrespective of which OS is installed) however, unlike Windows 7 (where I was able to install the Intel RAID controller driver) .Does anyone know of a resolution (which doesn't involve formatting and / or use of some other software RAID solution) - to get this working which my searches have not taken me too?
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Jul 21, 2010
In my system i have 3 250 GB Hard drives in a RAID 5 configuration. unfortunately, i cannot see this volume in "Computer", so i am unable to access any of the files on the volume. wierd thing is that when i enter disk utility, it finds the drives, and recognises them as a RAID volume. any ideas on how i can access the files on this drive
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Mar 10, 2010
I try installing Ubuntu 9.10 in my computer On reaching the prepare disk section it shows me that there is no operating system installed yet i have XP installed. it is also not showing the partitions in my computer yet i have 4 partitions. i cant do without ubuntu in my machine.
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Apr 24, 2010
I had a 500gb hard drive that I wanted to use on my Ubuntu system as a media storage drive. The drive originally had two partitions on it,one was a Dell Recovery partition and the other was a Windows Vista partition. Using the Palimpsest Drive Utility that comes with Ubuntu, I deleted both partitions,created a Ext3 partition using 100% of the space and copied my data to the drive. After I finally got fstab to load the drive, I found another problem. First of all, when Grub loads, two options it offers are:
Windows Vista (loader) on sdc1
Windows Vista (loader) on sdc3
Aside from that, 100% of the drive is not being used by the Ext3 partition.It is showing 434.6gb available on the drive. Fdisk is not showing any other partitions on this drive, so A) why are the Windows loader options showing up under Grub and B) why do I not have 500gb available?Here is a copy of the output fdisk -l:
Code:
Disk /dev/sda: 80.0 GB, 80000000000 bytes
255 heads, 63 sectors/track, 9726 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes[code]....
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Oct 29, 2010
this is my fdisk -l
Code:
Disk /dev/sdc: 750.1 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders
[code]...
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Dec 17, 2010
I had just configure RAID 1 on my IBM X3400 Server ..Partition information is md0 boot , md1 swap and md2 is root ....but after resyn when i run cat /proc/mdstat I realize that md0 and md1 is ok and present with [UU] status. BUT the md2 is showing on one [U_].. that means my root partition is not properly in RAID 1..
Please suggest how can i make it active in both drive. Or i need to reinstall complete system again. Screen shot attached
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Mar 11, 2010
I have 4 hard disks. 2 pair of RAID 1 (mirror). Both use the same RAID controller - Intel Marvell.When I boot, this is what is listed in /dev/mapper/:
Code:
crw-rw---- 1 root root 10, 59 2010-03-11 20:58 control
brw------- 1 root root 252, 0 2010-03-11 20:58 isw_bbjfjjdcg_Volume0
[code]...
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Jul 29, 2010
I have 4 virtual disk on AX4-5i. RHEL for some reason shows 16 partitions in /proc/partitions. I got lot-lot of IO errors in dmesg. Some of those 16 partitions "work", others just give (on using fdisk for example): Unable to read /dev/sdb. On EMC I have 4 ports, so it might be somehow releated to this.
[root@db ~]# /etc/init.d/iscsi restart
Logging out of session [sid: 1, target: iqn.1992-04.com.emc:cx.sl7e2101800014.a0, portal: 192.168.10.101,3260]
Logging out of session [sid: 2, target: iqn.1992-04.com.emc:cx.sl7e2101800014.b0, portal: 192.168.10.103,3260]
Logging out of session [sid: 3, target: iqn.1992-04.com.emc:cx.sl7e2101800014.a1, portal: 192.168.10.102,3260]
Logging out of session [sid: 4, target: iqn.1992-04.com.emc:cx.sl7e2101800014.b1, portal: 192.168.10.104,3260]
Logout of [sid: 1, target: iqn.1992-04.com.emc:cx.sl7e2101800014.a0, portal: 192.168.10.101,3260]: successful
Logout of [sid: 2, target: iqn.1992-04.com.emc:cx.sl7e2101800014.b0, portal: 192.168.10.103,3260]: successful
Logout of [sid: 3, target: iqn.1992-04.com.emc:cx.sl7e2101800014.a1, portal: 192.168.10.102,3260]: successful
Logout of [sid: 4, target: iqn.1992-04.com.emc:cx.sl7e2101800014.b1, portal: 192.168.10.104,3260]: successful
Stopping iSCSI daemon:
iscsid dead but pid file exists [OK]
Starting iSCSI daemon: [OK]
[OK]
Setting up iSCSI targets: Logging in to [iface: default, target: iqn.1992-04.com.emc:cx.sl7e2101800014.a0, portal: 192.168.10.101,3260]
Logging in to [iface: default, target: iqn.1992-04.com.emc:cx.sl7e2101800014.b0, portal: 192.168.10.103,3260]
Logging in to [iface: default, target: iqn.1992-04.com.emc:cx.sl7e2101800014.a1, portal: 192.168.10.102,3260]
Logging in to [iface: default, target: iqn.1992-04.com.emc:cx.sl7e2101800014.b1, portal: 192.168.10.104,3260]
Login to [iface: default, target: iqn.1992-04.com.emc:cx.sl7e2101800014.a0, portal: 192.168.10.101,3260]: successful
Login to [iface: default, target: iqn.1992-04.com.emc:cx.sl7e2101800014.b0, portal: 192.168.10.103,3260]: successful
Login to [iface: default, target: iqn.1992-04.com.emc:cx.sl7e2101800014.a1, portal: 192.168.10.102,3260]: successful
Login to [iface: default, target: iqn.1992-04.com.emc:cx.sl7e2101800014.b1, portal: 192.168.10.104,3260]: successful
[OK]
[root@db ~]#
I've googled and read docs but got no idea what to do. Any experiences with EMC/RHEL/iSCSI - I just don't understand where those 16 (and half of them not working/giving lotof errors) come from? For example Citrix Xen on similar network conf can see/use same EMC thoughr iSCSI nicely. SO there should'nt be network/auth issues (not using CHAP btw). I got feeling that problem is on RHEL iscsi conf side.
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Aug 1, 2011
I want to re-setup a raid array on some older drives using mdadm. That involved adding a single partition on 4 of my drives (3 older, 1 brand new - a replacement drive), using mdadm to create the array, etc. However, upon restarting the box, the 3 older drives do not show up as having partitions and hence mdadm cannot immediately start the array because 'there are not enough disks to start'.For example, if I do an ls command before I restart, I will see:
Code:
ls -ltr /dev/sd*1
/dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1
[code]...
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Mar 21, 2011
I have 2x 1.5TB hard disks and I'm going to buy a new 2TB drive soon. First though I just wanted to check that I could partition off the first 1/4 to 1/3 of the 2TB drive (leaving 1.5TB or more free) and install Debian to that part, then use the remainder of the disk in combination with the 2x 1.5 TB drives in RAID 5? i.e. can you mix whole drives and with partitions from other drives in RAID 5 and/or is it best to just stick with complete drives for the RAID array?I only have room for 3 drives in the small mATX case that houses my NAS device and I want to maximise storage capacity and minimise expense.
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Aug 7, 2009
I have three hard drives in my computer That I want to make RAID 0. All of them already have partitions and data on them. What I want to know is if I can, without losing data, add the disks to RAID and then merge the partitions? All the partitions are of the same type. Or would it easier/better/possible to do this with LVM? Even if I'd have to shrink partitions and copy data to a new LVM one to get it set up properly, would it be better than RAID 0?
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Aug 17, 2010
I use slackware 13.1 and I want to create a RAID level 5 with 3 disks. Should I use entire device or a partition? What the advantages and disadvantages of each case? If a use the entire device, should I create any partition on it or leave all space as free?
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Aug 24, 2009
Googling tells you how to resize RAID partitions but not how to resize the underlying disk partitions. In my particular case, I initially sized a RAID array way too large - and when I added another disk to the array, I decided I was wasting too much space.I shrunk the file system, then "grew" the array (/dev/md2) to the smaller size, and resized the file system again to fit. However the actual disk partitions (/dev/sda2, /dev/sdb2, etc.) are still the original size - they are just mostly unused space.As I understand it, the superblocks are at the end of the partition. I believe this means the end of space used by the array on each device, so that the superblock moved to a lower block number when I shrunk the array. However it also means that I need to get the new physical partition size correct to avoid clobbering the superblock.
Is there an easy way to get any partition editor to shrink the physical partitions to the new array size?If not, is the superblock included in the space allocated to the array so that the next partition can start in the very next block, or is it added after the array so I'd need to allow some space for it?
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Feb 4, 2010
I am trying to setup a H/W RAID-1 matrix but I am unsuccessful. I am trying to get partitions installed as /dev/md0, /dev/md1 but it keeps going for /dev/mapper/isw...The reason is that I have R1Soft backup and it needs to hook the partitions as seen in /proc/partitions from /dev not /dev/mapper/isw. I have tried to boot the installation with various options but nothing!
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Nov 2, 2010
My PC configuration is as follows:
CPU: AMD Athlon II 245 X2
RAM: 2GB DDR2
MB: ASUS M2A74-AM
SATA DVD-Writer
WD 320GB SATA HDD.
SATA Controller is in AHCI mode in BIOS.
Partition Table:
1. Pri. (Windows 7 Ultimate)
2. Log. (Data)
3. Log. 15GB free space (want to install Linux in this partition)
I want to install Debian 5.0.4 from DVD. But the installer is not showing any partitions, it says entire hard disk is blank. But I ran 'fdisk -l' in the console, it shows the partitions correctly.
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May 23, 2011
I need to set up a RAID 1 array on Squeeze. I have 3 partitions: sda1 is root, sda5 is home, and sda6 is swap. (sda2 is the extended partition containing home and swap. This was a clean installation, so I don't know what happened to sda3 and sda4...)
All the information that I've been able to find recommends doing something like this:
mdadm --create --verbose /dev/md0 --level=mirror --raid-devices=2 /dev/sdb1 /dev/sdc1
Do I need to type a separate command for each partition, or is there a better way to do it? Also, should I use the UUID instead of the dev names?
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Mar 13, 2010
I just expanded my raid 5 array from 3*2TB to 4*2TB and mdadm made the grow successfully and shows an md0 dev with the size of 6TB usable data. Now my problem is that Debian (Lenny) dosnīt show the right amount. See below
######### MDADM DETAILS OF ARRAY ##########
> mdadm --detail /dev/md0
/dev/md0:
Version : 0.90
Creation Time : Mon Dec 14 22:30:46 2009
Raid Level : raid5
[Code].....
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