I've just finished booting my system via Live CD, and installing 10.04-1 to existing partitions on a hardware RAID. The install went fine but when I rebooted I didn't get past the BIOS output screens.I used four existing partitions for the install: /home (MyRAID3, which was kept as-is), / (MyRAID2, which was reformatted) , /boot (MyRAID1, also reformatted) and swap.
View 9 RepliesAfter update/upgrade; previously existing RAID no longer auto-mounts.
Disk /dev/sda: 250.1 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes[code]......
*sigh* For the past 24 hours I'm trying to install Ubuntu 10.04 64 bit on a multi-boot machine with RAID 1 for the / partition. After reading that fakeRAID is more troubles than worth it, I downloaded the alternate install CD, setup two identical drives as software RAID (/dev/sda1 and /dev/sdc1 as ext4 as well as /dev/sda5 and /dev/sdc5 as swap) and installed the system- This took hours and now it only boots into busybox, complaining it can't find /proc and other stuff.
View 2 Replies View RelatedI have a raid5 on 10 disk, 750gb and it have worked fine with grub for a long time with ubuntu 10.04 lts. A couple of days ago I added a disk to the raid, growd it and then resized it.. BUT, I started the resize-process on a terminal on another computer, and after some time my girlfriend powered down that computer!
So the resize process cancelled in the middle and i couldn't acess any of the HDDs so I rebooted the server.
Now the problem, the system is not booting up, simple black with a blinking line. Used a rescue CD to boot it up, finised the resize-process and the raid seems to be working fine so I tried to boot normal again. Same problem. Rescue cd, updated grub, got several errors: error: unsupported RAID version: 0.91. I have tried to purge grub, grub-pc, grub commmon, removed /boot/grub and installed grub again. Same problem.
I have tried to erased mbr (# dd if=/dev/null of=/dev/sdX bs=446 count=1) on sda (ide disk, system), sdb (sata, new raid disk). Same problem. Removed and reinstalled ubuntu 11.04 and is now getting error: no such device: (hdd id). Again tried to reinstall grub on both sda and sdb, no luck. update-grub is still generating error about raid id 0.91 and is back on a blinking line on normal boot. When you'r resizeing a raid MDADM changed the ID from 0.90 to 0.91 to prevent something that happend happened. But since I have completed the resize-process MDADM have indeed changed the ID back to 0.90 on all disks.
I have also tried to follow a howto on a similar problem with a patch on [URL] But I cant compile, various error about dpkg. So my problem is, I cant get grub to work. It just gives me a blinking line and unsupported RAID version: 0.91.
I have installed Ubuntu on my m1530 since 8.04 and currently dual boot Win7 and 10.10. I would like to dual boot on my PC, but I have run into a problem. I am not a pro at Ubuntu, but this problem I can not solve by reading forums like I have in the past.
I realize this is a common problem, but I have noticed people having success.
I have a M4A87TD EVO MB with two Seagate drives in Raid 0. (The raid controller is a SB850 on that MB) I use the raid utility to create the raid drive that Windows7x64 uses. I have 2 partitions and 1 unused space. Partition 1 is Windows, partition 2 is for media, and the remaining unused space is for Ubuntu.
I am running ubuntu-10.10-desktop-amd64 off a Cruzer 16GB flash drive that was installed via Universal-USB-Installer-1.8.1.4.
My problem like so many others is that when I load into Ubuntu, gparted detects two separate hard drives instead of the raid. I read that this is because kpartx is not installed on 10.10. I then went in LiveCD mode and downloaded kpartx from Synaptic Manager. Gparted still reported two drives. I opened terminal and run a few commands with kpartx. I received an error. (Forgive me I didn't write it down, but I believe it said something about a communication error. I will try again later and see.)
Currently I am reflashing the Cruzer with a persistence of 4GB. I am not familiar with this process, but I understand that my LiveCD boot will save information I download to it. I decided to try this method because I was going to install kpartx and reboot to see if this made a difference.
I am looking for any suggestions on a different method or perhaps someone to tell me that the raid controller or some hardware isn't supported. I did install ubuntu-10.10-alternate-amd64 on my flash drive, but fail to get past detecting my CD-ROM drive since it's not plugged in. If this method is viable, I will plug it in. I also watched the ..... video were a guy creates Raid 0 with the alternated CD, but it wasn't a dual boot and didn't use a raid controller from a MB.
i decided to install ubuntu in my PC,i downloaded the .ISO image and i installed it in my USB. After trying it and all that i observed that i really liked it and i decided to formally install it to my computer in the hard drive. When i reached the partition thing,i selected to dual boot with Vista and select between each them in every startup,when i clicked FORWARD it gave me an error which i did not read(because,again im a noob) so i clicked cancel.
Today i wanted to go through the process again and now really install it,so again i went to the time zone part and i clicked forward but then,instead of taking me straight to the partition phase,it appeard a window saying "The installer has detected that the following disks have mounted partitions: /dev/sda ...." I clicked yes,to unmount this partitions so it took me to the partition thing,once there i selected the option to install Ubuntu with Vista and select between them i neach startup,then i clicked forward and went to the username/computer name process,once i finished i continued to the next part,the installation,but i selected to import all of my WIndows VIsta default user data,after that i clicked forward and went to the installation process,i went down stairs to eat soemthing while it finishes,i came back and it was finished,it asked me to reboot so i clicked in Restart Now.
When it tried to boot,appeared an error saying: Error: no such devide found: #################### Grub load(or something like that) grub rescue: and it was a command line,since there i havent been able to boot into vista or Ubuntu,im really scared because is the first thing related to OS installing ive done,so i booted my USB and ran the trial and right now im trying to find out what to do from that trial version.
I just went to the INSTALL UBUNTU 10.04 LTS application under the System>Administration Menu and found out that in the partition phase the Install and allow to select between both systems in eahc startup option,i dont know what to do,i foudn out that my HD has still all its data(MUsic/Videos/Folders/Programs/ect.)its just that i cannot boot from it. Also in GParted it appears as /dev/sda1/ and a warning icon besides it,also when i go into information, thers this warning there [URL]
First of all here's my PC configuration
Proc Core2Duo 6750
MB MSI P35 Neo 2
RAM Corsair 4GB
Video Gigabyte GTS250
HDD 2x320GB Seagate in RAID 0 and 1GB WD
I have a Windows 7 installation with a boot partition on the RAID. I also want to have a dual boot with openSUSE 11.2 but I don't know how to set correctly my partitions. I have some unallocated space next to the Windows C: partition. When I try to install openSUSE it makes a suggestion to create some partitions that i don't need and don't want, and even doesn't mount them. It also creates a / 80GB, /boot 36MB, swap 2GB and /home 20GB partitions, so I am in lack of free space.
I don't know how to create screenshots during installation. Maybe I'll try to reinstall later and pick some screens in english, because my system language is bulgarian.
It's been a real battle, but I am getting close.I won't go into all the details of the fight that I have had, but I've almost made it to the finish line. Here is the set up. ASUS Z8PE-D18 mother board 2 CPU, 8 Gig Ram. I recently added an OCZ Agility SSD, defined a raid 1 virtual disk on the 1 terabyte WD HDD drives, which will holds all of my user data, the SSD is for executables.The bios is set to AHCI. Windows 7 installed fine, recognizes the raid VD just fine.
I installed Ubuntu 10.04 by first booting into try and mode, then opening a terminal and issuing a "sudo dmraid -ay" command. Then performing the install. I told it to install the raid components, and told it to let me specify the partitions manually. When setting up the partitions, I told it to use the free space I set aside on the SSD from the Windows 7 install as ext4 and to mount root there. Ubuntu installed just fine, grub2 comes up just fine, and Windows 7 boots with out a hitch, recognizing the mirrored partition as I indicated previously. When I tell grub to boot linux however, it pauses and I get the "no block devices found" message. It will then boot, but it does not recognize the raid array. After Ubuntu starts up I can run "dmraid -ay" and it recognizes the raid array, but shows the two component disks of the raid array as well. It will not allow the component disks to be mounted, but they show up which is annoying. (I can live with that if I have to)
I have fixed a similar problem before by setting up a dmraid script in /etc/initramfs-tools/scripts/local-top ... following the instructions found at the bottom of this blog:[URL].. To recap: My problem is that after grub2 fires up Ubuntu 10.04.1 LTS (Lucid Lynx), it pauses, and I get "no block devices found" It then boots but does not recognize the raid array untill I manually run "dmraid -ay". I've hunted around for what to do but I have not found anything. It may be some timing issue or something, but I am so tired of beating my head against this wall.
Is this possible? I was able to do this with Debian 6 no problem. The installation interface is really nice but seems to be lacking any way to do more advanced configurations. Is there some boot option I can pass in?
View 2 Replies View RelatedI updated from 10.04 to 10.10. Ubuntu works fine, but Vista does not boot anymore. If i select it from the GRUB menu the Pc just go silent and does nothing till I press Ctrl+Alt+Canc.
Here is my fdisk -l
Code:
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
code....
I downloaded the minimal boot image and installation CDs for F12 i386. On booting either I get the following messages:
Code:
This kernel requires the following features not present on the CPU:
cmov
Unable to boot - please use a kernel appropriate for your CPU
Looks to me like the installation media for i386 doesn't have an i386 kernel! I'm trying to install to an i586 CPU.
I try to install Fedora 11 from DVD BUT after installation system is not booting. Windows XP is a 1st OS is already installed in my system.
View 1 Replies View RelatedI tried to boot from a Fedora 12 installation DVD. In the "Welcome to Fedora 12!" screen, my USB keyboard and mouse do not work. However, they work after the welcome screen and I can complete the installation.
I set my hard drives to be RAID 1. After the installation, the machine reboot. However, it halt on. I would follow the steps as shown in "http://ping.co.il/node/1/" to solve this problem, but the USB keyboard does not work in the "Welcome to Fedora 12!" screen. I cannot select the rescue mode. How can I solve this problem?
I'm setting up a backup server using Centos 5.3 and an Adaptec 5805 raid card and discovered that I can't use a raid setup that is over 2TB in size as the boot drive. What I eventually did was set up 2 raids on the same set of 4 drives so that I have a 200Gb 'drive' for booting and a 2.6TB 'Drive' for data. I want to keep the OS in the raid setting so I have some protection instead of having a dedicated stand alone drive for the OS. This will be for a company wide backup server and I want to minimize the possibility of drive failure for the OS as well as the Data.
I was able to install and reboot the system and everything seemed to be working but after some working on it a bit I did a reboot and wound up with a non-booting system. I can boot to the rescue mode with the install dvd and mount the original system and I even tried to reinstall the grub setup per instructions I found on the net but still I get a system that hangs up after it asks if I want to boot from the CD. If I take out the CDROM option from the boot lineup in the bios I stop at the same place minus the boot cd prompt.
I'm guessing it is something to do with one of the raid drives being over 2TB but I'm booting from a 200gb sized raid so I'm really at a loss for what to do next??
Is what I've described the correct way to handle booting up with a large raid or is there another way to reconfigure the drives as one big 2.8TB raid and use something other than grub to boot to it?
I am attempting to set up an IBM Intellistation Z Pro to optionally boot from many OS versions. One of these is Windows XP. Windows XP is currently installed on a RAID 1 device consisting of a pair of 1 GB WD drives. These are SATA drives. The HBA I'm using is a SYBA SATA II card that uses Silicon Image's SIL3124-2 chip. The card has a BIOS and I've set up two 60 GB mirrors for Windows. I boot XP fine from this setup and things run good.
I've downloaded the CentOS 5.2 images and am able to start the installation process. I'm baffled on where to install the OS software on the RAID device. The installation process shows the two 1GB drives as separate drives and there is no acknowledgment of the 60 GB partition I've already created on them for Windows XP. I expected to see only the one logical RAID device and 60 GB of it in use for a NTFS partition. Reluctant to proceed further, I bailed on the install and am asking for advice on how to proceed.
The big question is
1) How can I install CentOS 5.2 on the RAID drive to coexist with a Windows XP installation? My desire is to boot either from this drive.
other questions related to this are:
2) Why does the CentOS partitioning software used for the install not display the logical RAID drive set up through BIOS (I'm assuming that this means it was set up apart from any Windows drivers etc.)? Only the two physical drives are displayed and there is no mention of any partitions in use.
Just a few short months ago, I embarked on the journey to learn Linux. I have since installed it to multiple systems, got wine working with multiple programs, and replaced most of my need for windows with free alternatives. Software RAID in 9.10... I have setup a virtual machine in virtualbox. I created two 8GB virtual hard disks. I boot off 9.10 x64 CD. I launch the live CD and at the desktop I use built in software to setup the two virtual drives as RAID 0. After creating the RAID, I cannot successfully install Ubuntu. I configure three partitions on the RAID, one for filesystem, one for swap, and one for boot. But the install always fails.
View 7 Replies View Relatedconfiguring RAID, LVM and my physical volumes for a new 10.04 Server install (used mostly as a windows file server and print server). My hardware setup consists of 2 identical 500GB hard drives. My desired end state is:
An ext4 root partition (20 GB)
A swap partition (2GB)
A fat32 partition (450 GB) (to be accessed via Samba)
The above all to be on RAID1 across the 2 disks
The way I see it, the there are a number of possible ways to configure the above, and I am looking for some advice on the best (feasible) option: Create a single MD0 raid volume accross the entire two disks, and then create a single LVG across this, with 3 sepreate LVs, on for each partition above Create 2 physical volumes on each disk, create two raid volume on these (MD0, MD1), one for the LVG with two LVs for the Root and swap, a the other for the FAT32 partition (this seems like more work?) Other more suitable options?
I am currently in the process of making a file server at home. My friend suggested that I do an LVM (more for learning purposes than anything) instead of a RAID. I have a RAID card with 5 HDD's attached (each one being a 250GB ATA HDD) to the computer. I am planning on using these for the server.
View 4 Replies View RelatedSo, I recently installed Ubuntu on a (now) Triplebooting RAID 5 system. However, the setup was not able to install GRUB. This means I cannot boot into Ubuntu currently. The following are acceptable outcomes for me:
1) Installing GRUB as the primary bootloader, allowing me to boot into Linux, Windows 7, or Windows XP.
2) Installing GRUB as the primary bootloader, but allowing me to boot into the Windows 7 Bootloader as well as Ubuntu.
3) Installing GRUB as a secondary bootloader that can be accessed through the Windows 7 Bootloader.
My current config, according to gparted with kpartx installed is:
[code].....
There seems to be a problem with Raid on Debian. I got a new Fujitsu Primergy TS 100 S1 server, with hardware Raid (and 2 disks) installed everything nicely over the net including GRUB - but when it comes to reboot the system does not boot.
Is there anybody here who knows about the problem?
I currently am setting up an htpc running Karmic. The problem I am having is getting my Raid 0 to be mountable. My raid is not my boot partition, but is for data storage. My setup is a zotac motherboard with three sata connectors. I have a 300 GB drive, my eSata port, and my DVD attached to these. In the PCIe expansion slot I have installed Syba 2 port Sata PCIe 1a card using the Sil3132 sata II host chipset. Off of this I have 2 1.5Tib Hdds that I am setting up as Raid 0. During the boot I enter the chipset BIOS and establish this as a Raid 0.
When I install Karmic it sees the Raid and my 300 GB drive so I install to the 300 GB Drive and everything works fine. I am able to boot to the Hdd and run the OS. I then installed GParted and setup a partition on my RAID as GPT since I want one large partition of 2.78Tib. I then Format it through GParted as ext4 and I am able to mount and access it. I then reboot the system, and can no longer mount the filesystem. What I found interesting is If I reopen GParted I can then mount it. I traced it down to the fact that the until I access GParted the Block Special Device (sil_bgabagabaedd1) does not appear in /dev/mapper. Everytime I reboot I need to go into GParted to restore the Block Special Device then it is mounted. I think I am missing something in the raid setup as to why it is not being retained. What have I missed? What do I need to do to retain the Block Special Device? Is there a boot config setting?
Edit: I did further research and found that if I do kpartx it will appear just as gparted, but on reboot vanishes. I found something similar at this thread but not comfortable in updating dmraid: [URL] I think it is related to gpt and I will try to use a smaller partition to see if the behavior changes.
I was recently given two hard drives that were used as a raid (maybe fakeraid) pair in a windows XP system. My plan was to split them up and install one as a second HD in my desktop, and load 9.10 x64 on it, and use the other for mythbuntu 9.10. As has been noted elsewhere, the drives aren't recognized by the 9.10 installer, but removing dmraid gets around this, and installation of both ubuntu and mythbuntu went fine. On both systems after installation however, the systems broke during update, giving an "read-only file system" error and no longer booting.
Running fsck from the live cd gives the error:
fsck: fsck.isw_raid_member: not found
fsck: Error 2 while executing fsck.isw_raid_member for /dev/sdb
and running fsck from 9.04 installed on the other hard drive gives an error like:
The superblock could not be read or does not describe a correct ext2
filesystem. If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
In both cases I setup the drives with the ext4 filesystem. There's probably more that I'm forgetting... it seems likely to me that this problem is due to some lingering issue with the RAID setup they were in. I doubt its a hardware issue since I get the same problem with the different drives in different boxes.
I'm a long time windows user and it-tech but I have long felt that my geek-levels were too low so I installed Ubuntu last week (9.10 x64). Hopefully I can make it my primary OS. I have two 80GB drives in RAID-1 from my nforce raid controller, nforce 570 chipset. Then a 320 GB drive where I placed ubuntu and it's also where grub placed itself. And also a 1TB drive.
When grub tries to boot XP I get the error message: "error: invalid signature" I checked the forum as much as I could and tried a few things, but no change.
Drives sdc and sdd are the two drives in raid, they are matched exactly, but detected as different here. I really think they should be seen as one drive.
how I can make grub work as it should?
Also, if/when I need to make changes to grub, do I really have to use the live CD?
Code:
============================= Boot Info Summary: ==============================
=> Grub 1.97 is installed in the MBR of /dev/sda and looks on the same drive
in partition #1 for /boot/grub.
=> Windows is installed in the MBR of /dev/sdb
=> Windows is installed in the MBR of /dev/sdc
[Code].....
This question is going to flag me as being a bit green to Ubuntu, but I must confess that in 15+ years in I.T., I have never had such a hard time understanding the partitioning scheme. Here's where I'm at.
I installed from the 9.10 live CD and selected the option to use the entire disk. The system has an Intel raid controller built in to the motherboard and two 80GB hard drives in a mirrored configuration. The system has previously been used with both XP and FreeBSD and never had an issue with partitioning or, more importantly, getting the boot manager to work.
So the live CD partitioned my hard drives, installed all the software and mount points, and claims that everything is finished. When I reboot, no boot device is found. If I then boot again from the live CD and select the option to boot from the hard disk, it does and I am in fact typing this message from the system. However, nothing I can do will make the thing boot without the bloody CD.
I've spent hours trying to figure out how to make grub work, or how to fix the MBR but no luck. The drives don't show up as /dev/hda or as anything logical that I can discern, so I can't even construct a workable install-grub command. Doing a df gives me this:
[Code]...
which is not very informative, is it? FreeBSD was never such a pain to make boot.Frankly, I'm not very impressed that a clean install (non dual boot) on such a standard hardware configuration could be so difficult to make the boot loader work. Documentation on this subject is voluminous but very shabby. I have searched and searched and I cannot find any mention of hardware mirrored IDE or SATA drives, nor what dev they would show up as. Very frustrating. Every tutorial I've read on installing grub2 or grub just doesn't work, usually because the dev is not right.
Can anyone shed some light on this bizarre behavior and perhaps offer some advice that will allow me to boot this system without the use of a live CD?
I already have a 300 GB SATA drive with Ubuntu 8.04 installed on it. It is currently running off my mobo's onboard SATA 1.0 Raid Controller. I recently purchased a SATA 2.0 Raid PCI controller that I will be putting in the computer and 2 new 750 GB Western Digital Caviar Green Hard drives. I wish to add the two drives in a Raid 1 configuration to store all my Pictures, Files, and Movies on. Every instruction and tutorial I can find on setting up Raid on Linux assumes you are performing a fresh install on Linux and gives no tips or instructions for current installations. I already have Ubuntu installed and do not wish to have to reinstall it. I want to leave my installation on the 300 GB drive and just add in the 2 750GB drives for storage.
View 1 Replies View RelatedI have run Ubuntu in the past and then switched to OpenSUSE several months ago and set up raid 0 on a 500gb hard drive and 700gb hard drive (I went with openSUSE because of the graphical raid setup.)
My whole partition setup looks like this:
500gb Hard Drive:
750gb Hard Drive:
md0 is the two 400gb partitions on each drive for a total of 800gb space on my /home partition ext4 filesystem ( 380gb space used ) md1 is 100gb ext4 / partition.
all raid 0
Now I was wondering if I downloaded the alternate install cd for ubuntu ( as OpenSUSE has crashed for the second time because of bad updates ( starts, but gets to terminal only ) ) would I be able to keep my raid 0 home partition and wipe the rest of the each drive and setting up Ubuntu keeping all of my files and settings intact, just to install my programs I need all while keeping my old settings ( such as firefox bookmarks, virtual box utilities etc. ) intact.
From what I know it's possible, but I don't know much about the Ubuntu Alternate install disk ( as I have been dealing with dependancy hell on OpenSUSE ) but in OpenSUSE it wont let me keep the old raid setup ( md0 ) Im guessing it is possible to set up the home directory on a different hard drive and then going back into the live cd, editing the fstab, and switching it to md0, if this is even possible, or would I need to configure the driver on that system before I did that Oh and I forgot to mention that I've only been running 64bit operating systems.
System Specs: AMD Dual core at 2.8ghz ( overclocked, stable, cpu ran at full bore for a day. only reaching 120f) Nvidia 9600 gso 368mb ram, 4gb ram at 800mhz
When I tried to install fedora13, f13's installer kept seeing my hard drives as a "BIOS RAID set (mirrorred)". Ubuntu10.04's installer had the same problem with my drives but that installer was less informative than f13's installer. U10.04's nstaller just stalled in the first screen, the one with the word Ubuntu above five dots, giving no hint as to what it didn't like. My pc came from Dell with 2 identical SATA hard drives in a RAID level one array. I changed CMOS settings from "RAID ON" to "ON" for each hard drive. That did not dismantle the RAID configuration, at least not n a way that satisfied f13's installer.
I reinstalled xp and tried to install f13 after a minimal xp installation. f13's installer detected "BIOS RAID metadata." What is it that f13's installer is detecting? I thought this might have something to do with nVidia's nForce4 Serial ATA RAID controllers. These are installed when you install the version xp that came with my system, not like most other drivers which you install after xp. I contacted nVidia but they couldn't help me with this. Well, it turns out to be Dell's fault. They place this "BIOS RAID metadata" in a special place on each hard drive of a RAID set. It survives even the formatting that accompanies a reinstallation of xp or any os.
If you want to truly dismantle a manufacturer's RAID set, you must use software like "dban" [URL] to thoughly wipe clean the drives. Download dban, burned it to a cd, then boot that cd. dban's auto??? command didn't work for me but its dod command did the trick. The process took about seven hours for each of my 160gb hard drives.
I have a system with: - 1 SSD "boot" drive - 3 HDDs in RAID 5. I created my RAID 5 set in BIOS - P6X58D motherboard/Intel Software RAID - Looks and works fine in Windows 7 (Ultimate) 64-bit. I installed Ubuntu 10.04 using wubi - both Windows 7 and Ubuntu systems are on the SSD THE PROBLEM Ubuntu does not appear to recognize my RAID 5 set - when it loads I see a "/dev/sd_ 10 failed" error (sd_=sda, sdb or sdc) along with "no such file or directory" - I can see my 3 HDDs in 'Disk Utility,' but the space/partition information is incorrect - I reinstalled all packages related to RAID (dmraid, etc.)
View 7 Replies View RelatedI tried to install new ubuntu on Intel raid 1 system but it said that:
Quote:
The ext4 file system creation in partition #1 of Serial ATA RAID isw_chibcceegh_Volume0 (mirror) failed.
My config is:
P5Q Pro
2x500 GB Seagate HDD
Intel Raid 1
Boot ubuntu from USB Drive (Wonder does this cause the problem?)
I have recently installed a Asus M4A77TD Pro system board which supports raid.
I have 2 x 320gb sata drives I would like to setup raid-1 on. so far i have configured the bios to raid-1 for drives, but when installing Ubuntu 10.04 from the cd it detects the raid configuration but fails to format.
When I re-set all bios settings to standard sata drives ubuntu installs and works as normal but i have just 2 x drives without any raid options. I had this working in my previous setup but thats because i had the o/s on a sepreate drive from the raid and was able to do this within Ubuntu.